diff --git a/test/ajv-schemes.js b/test/ajv-schemes.js
index 6b7167c3..8b2d79ad 100644
--- a/test/ajv-schemes.js
+++ b/test/ajv-schemes.js
@@ -137,5 +137,8 @@ function schemesV3_0_0(ajv) {
   ajv.addSchema(require('@common/avroSchema_v1.json'));
   ajv.addSchema(require('@common/openapiSchema_3_0.json'));
 
+  ajv.addSchema(require('@extensions/x/0.1.0/schema.json'));
+  ajv.addSchema(require('@extensions/linkedin/0.1.0/schema.json'));
+
   return bindingSchemes(ajv);
 }
diff --git a/test/definitions/3.0.0/models/channel/channel/channel.js b/test/definitions/3.0.0/models/channel/channel/channel.js
index fe9aacec..71d7e053 100644
--- a/test/definitions/3.0.0/models/channel/channel/channel.js
+++ b/test/definitions/3.0.0/models/channel/channel/channel.js
@@ -1,64 +1,51 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Channel';
-const jsonSchema = require('@definitions/3.0.0/channel.json');
-import schemesV3_0_0 from '@test/ajv-schemes';
-const validator = schemesV3_0_0(ajv).compile(jsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Channel'
+const validator = TestHelper.validator(require('@definitions/3.0.0/channel.json'))
 
-describe.skip(`${jsonSchemaName}. Reason: multiple errors with bindings, externalDoc, ...`, () => {
+describe.skip(`${title}. Reason: multiple errors with bindings, externalDoc, ...`, () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/empty.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} with empty body is valid`);
+    assert(validationResult === true, `${title} with empty body is valid`);
   });
 
   it('without required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/without required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} without required properties is valid`);
+    assert(validationResult === true, `${title} without required properties is valid`);
   });
 
   it('only required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/only required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} is valid with only required properties`);
+    assert(validationResult === true, `${title} is valid with only required properties`);
   });
 
   it('extended', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} can be extended`);
+    assert(validationResult === true, `${title} can be extended`);
   });
 
   it('wrongly extended', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/wrongly extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === false, `${jsonSchemaName} is not valid when was wrongly extended`);
+    assert(validationResult === false, `${title} is not valid when was wrongly extended`);
     assert(validator.errors[0].message === 'must NOT have additional properties');
     assert(validator.errors[0].params.additionalProperty === 'ext-number');
     assert(validator.errors.length === 1);
diff --git a/test/definitions/3.0.0/models/channel/message/correlationId/correlationId.js b/test/definitions/3.0.0/models/channel/message/correlationId/correlationId.js
index c2c73224..23afb34f 100644
--- a/test/definitions/3.0.0/models/channel/message/correlationId/correlationId.js
+++ b/test/definitions/3.0.0/models/channel/message/correlationId/correlationId.js
@@ -1,36 +1,23 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Correlation ID';
-const jsonSchema = require('@definitions/3.0.0/correlationId.json');
-import schemesV3_0_0 from '@test/ajv-schemes';
-const validator = schemesV3_0_0(ajv).compile(jsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Correlation ID'
+const validator = TestHelper.validator(require('@definitions/3.0.0/correlationId.json'))
 
-describe(`${jsonSchemaName}`, () => {
+describe(`${title}`, () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/empty.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === false, `${jsonSchemaName} with empty body is valid`);
+    assert(validationResult === false, `${title} with empty body is valid`);
     assert(validator.errors[0].message === 'must have required property \'location\'');
     assert(validator.errors.length === 1);
   });
@@ -39,7 +26,7 @@ describe(`${jsonSchemaName}`, () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/without required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === false, `${jsonSchemaName} without required properties is valid`);
+    assert(validationResult === false, `${title} without required properties is valid`);
     assert(validator.errors[0].message === 'must have required property \'location\'');
     assert(validator.errors.length === 1);
   });
@@ -48,21 +35,21 @@ describe(`${jsonSchemaName}`, () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/only required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} is valid with only required properties`);
+    assert(validationResult === true, `${title} is valid with only required properties`);
   });
 
   it('extended', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} can be extended`);
+    assert(validationResult === true, `${title} can be extended`);
   });
 
   it('wrongly extended', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/wrongly extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === false, `${jsonSchemaName} is not valid when was wrongly extended`);
+    assert(validationResult === false, `${title} is not valid when was wrongly extended`);
     assert(validator.errors[0].message === 'must NOT have additional properties');
     assert(validator.errors[0].params.additionalProperty === 'ext-number');
     assert(validator.errors.length === 1);
diff --git a/test/definitions/3.0.0/models/channel/message/message/message.js b/test/definitions/3.0.0/models/channel/message/message/message.js
index ce1ccbf0..4f6e5983 100644
--- a/test/definitions/3.0.0/models/channel/message/message/message.js
+++ b/test/definitions/3.0.0/models/channel/message/message/message.js
@@ -1,64 +1,51 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Message';
-const jsonSchema = require('@definitions/3.0.0/messageObject.json');
-import schemesV3_0_0 from '@test/ajv-schemes';
-const validator = schemesV3_0_0(ajv).compile(jsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Message'
+const validator = TestHelper.validator(require('@definitions/3.0.0/messageObject.json'));
 
-describe.skip(`${jsonSchemaName}. Issues with bindings`, () => {
+describe.skip(`${title}. Issues with bindings`, () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/empty.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} with empty body is valid`);
+    assert(validationResult === true, `${title} with empty body is valid`);
   });
 
   it('without required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/without required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} without required properties is valid`);
+    assert(validationResult === true, `${title} without required properties is valid`);
   });
 
   it('only required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/only required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} is valid with only required properties`);
+    assert(validationResult === true, `${title} is valid with only required properties`);
   });
 
   it.skip('extended. Reason: schema prohibites extendsion. Check', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} can be extended`);
+    assert(validationResult === true, `${title} can be extended`);
   });
 
   it.skip('wrongly extended. Reason: schema prohibites extendsion. Check', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/wrongly extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === false, `${jsonSchemaName} is not valid when was wrongly extended`);
+    assert(validationResult === false, `${title} is not valid when was wrongly extended`);
     assert(validator.errors[0].message === 'must NOT have additional properties');
     assert(validator.errors[0].params.additionalProperty === 'ext-number');
     assert(validator.errors.length === 1);
diff --git a/test/definitions/3.0.0/models/channel/message/messageExample/messageExample.js b/test/definitions/3.0.0/models/channel/message/messageExample/messageExample.js
index 027c35d5..685a587a 100644
--- a/test/definitions/3.0.0/models/channel/message/messageExample/messageExample.js
+++ b/test/definitions/3.0.0/models/channel/message/messageExample/messageExample.js
@@ -1,36 +1,23 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Message example';
-const jsonSchema = require('@definitions/3.0.0/messageExampleObject.json');
-import schemesV3_0_0 from '@test/ajv-schemes';
-const validator = schemesV3_0_0(ajv).compile(jsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Message example'
+const validator = TestHelper.validator(require('@definitions/3.0.0/messageExampleObject.json'));
 
-describe(`${jsonSchemaName}`, () => {
+describe(`${title}`, () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/empty.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === false, `${jsonSchemaName} with empty body is valid`);
+    assert(validationResult === false, `${title} with empty body is valid`);
     assert(validator.errors[0].message === 'must have required property \'payload\'');
     assert(validator.errors[1].message === 'must have required property \'headers\'');
     assert(validator.errors[2].message === 'must match a schema in anyOf');
@@ -41,7 +28,7 @@ describe(`${jsonSchemaName}`, () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/without required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === false, `${jsonSchemaName} without required properties is valid`);
+    assert(validationResult === false, `${title} without required properties is valid`);
     assert(validator.errors[0].message === 'must have required property \'payload\'');
     assert(validator.errors[1].message === 'must have required property \'headers\'');
     assert(validator.errors[2].message === 'must match a schema in anyOf');
@@ -52,21 +39,21 @@ describe(`${jsonSchemaName}`, () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/only required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} is valid with only required properties`);
+    assert(validationResult === true, `${title} is valid with only required properties`);
   });
 
   it.skip('extended. Reason: schema prohibites extendsion. Check', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} can be extended`);
+    assert(validationResult === true, `${title} can be extended`);
   });
 
   it.skip('wrongly extended. Reason: schema prohibites extendsion. Check', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/wrongly extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === false, `${jsonSchemaName} is not valid when was wrongly extended`);
+    assert(validationResult === false, `${title} is not valid when was wrongly extended`);
     assert(validator.errors[0].message === 'must NOT have additional properties');
     assert(validator.errors[0].params.additionalProperty === 'ext-number');
     assert(validator.errors.length === 1);
diff --git a/test/definitions/3.0.0/models/channel/message/messageTrait/messageTrait.js b/test/definitions/3.0.0/models/channel/message/messageTrait/messageTrait.js
index f4e09e45..6643a4e0 100644
--- a/test/definitions/3.0.0/models/channel/message/messageTrait/messageTrait.js
+++ b/test/definitions/3.0.0/models/channel/message/messageTrait/messageTrait.js
@@ -1,64 +1,51 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Message trait';
-const jsonSchema = require('@definitions/3.0.0/messageTrait.json');
-import schemesV3_0_0 from '@test/ajv-schemes';
-const validator = schemesV3_0_0(ajv).compile(jsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Message trait'
+const validator = TestHelper.validator(require('@definitions/3.0.0/messageTrait.json'));
 
-describe.skip(`${jsonSchemaName}. Issues with bindings`, () => {
+describe.skip(`${title}. Issues with bindings`, () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/empty.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} with empty body is valid`);
+    assert(validationResult === true, `${title} with empty body is valid`);
   });
 
   it('without required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/without required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} without required properties is valid`);
+    assert(validationResult === true, `${title} without required properties is valid`);
   });
 
   it('only required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/only required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} is valid with only required properties`);
+    assert(validationResult === true, `${title} is valid with only required properties`);
   });
 
   it.skip('extended. Reason: schema prohibites extendsion. Check', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} can be extended`);
+    assert(validationResult === true, `${title} can be extended`);
   });
 
   it.skip('wrongly extended. Reason: schema prohibites extendsion. Check', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/wrongly extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === false, `${jsonSchemaName} is not valid when was wrongly extended`);
+    assert(validationResult === false, `${title} is not valid when was wrongly extended`);
     assert(validator.errors[0].message === 'must NOT have additional properties');
     assert(validator.errors[0].params.additionalProperty === 'ext-number');
     assert(validator.errors.length === 1);
diff --git a/test/definitions/3.0.0/models/channel/parameter/parameter.js b/test/definitions/3.0.0/models/channel/parameter/parameter.js
index ccafba8d..93581587 100644
--- a/test/definitions/3.0.0/models/channel/parameter/parameter.js
+++ b/test/definitions/3.0.0/models/channel/parameter/parameter.js
@@ -1,66 +1,51 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Parameter';
-const jsonSchema = require('@definitions/3.0.0/parameter.json');
-const validator = ajv
-  .addMetaSchema(require('@definitions/3.0.0/schema.json'))
-  .addSchema(require('@definitions/3.0.0/specificationExtension.json'))
-  .compile(jsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Parameter'
+const validator = TestHelper.validator(require('@definitions/3.0.0/parameter.json'));
 
-describe(`${jsonSchemaName}`, () => {
+describe(`${title}`, () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/empty.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} with empty body is valid`);
+    assert(validationResult === true, `${title} with empty body is valid`);
   });
 
   it('without required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/without required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} without required properties is valid`);
+    assert(validationResult === true, `${title} without required properties is valid`);
   });
 
   it('only required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/only required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} is valid with only required properties`);
+    assert(validationResult === true, `${title} is valid with only required properties`);
   });
 
   it('extended', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} can be extended`);
+    assert(validationResult === true, `${title} can be extended`);
   });
 
   it('wrongly extended', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/wrongly extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === false, `${jsonSchemaName} is not valid when was wrongly extended`);
+    assert(validationResult === false, `${title} is not valid when was wrongly extended`);
     assert(validator.errors[0].message === 'must NOT have additional properties');
     assert(validator.errors[0].params.additionalProperty === 'ext-number');
     assert(validator.errors.length === 1);
diff --git a/test/definitions/3.0.0/models/info/contact/contact.js b/test/definitions/3.0.0/models/info/contact/contact.js
index bd100689..f717a76e 100644
--- a/test/definitions/3.0.0/models/info/contact/contact.js
+++ b/test/definitions/3.0.0/models/info/contact/contact.js
@@ -1,31 +1,16 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Contact';
-const jsonSchema = require('@definitions/3.0.0/contact.json');
-const validator = ajv
-  .addMetaSchema(require('@definitions/3.0.0/schema.json'))
-  .addSchema(require('@definitions/3.0.0/specificationExtension.json'))
-  .compile(jsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Contact'
+const validator = TestHelper.validator(require('@definitions/3.0.0/contact.json'));
 
 describe('Contact', () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
diff --git a/test/definitions/3.0.0/models/info/info extensions/info-extension.js b/test/definitions/3.0.0/models/info/info extensions/info-extension.js
index 66776db3..3552716a 100644
--- a/test/definitions/3.0.0/models/info/info extensions/info-extension.js	
+++ b/test/definitions/3.0.0/models/info/info extensions/info-extension.js	
@@ -1,32 +1,16 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Info Extensions';
-const jsonSchema = require('@definitions/3.0.0/infoExtensions.json');
-const validator = ajv
-  .addMetaSchema(require('@definitions/3.0.0/schema.json'))
-  .addSchema(require('@extensions/linkedin/0.1.0/schema.json'))
-  .addSchema(require('@extensions/x/0.1.0/schema.json'))
-  .compile(jsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Info Extensions';
+const validator = TestHelper.validator(require('@definitions/3.0.0/infoExtensions.json'));
 
 describe('InfoExtensions', () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
diff --git a/test/definitions/3.0.0/models/info/info/info.js b/test/definitions/3.0.0/models/info/info/info.js
index 1c759419..284e0634 100644
--- a/test/definitions/3.0.0/models/info/info/info.js
+++ b/test/definitions/3.0.0/models/info/info/info.js
@@ -1,41 +1,16 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Info';
-const jsonSchema = require('@definitions/3.0.0/info.json');
-const validator = ajv
-  .addMetaSchema(require('@definitions/3.0.0/schema.json'))
-  .addSchema(require('@definitions/3.0.0/infoExtensions.json'))
-  .addSchema(require('@definitions/3.0.0/contact.json'))
-  .addSchema(require('@definitions/3.0.0/license.json'))
-  .addSchema(require('../../../../../../examples/3.0.0/ReferenceObject.json'))
-  .addSchema(require('@definitions/3.0.0/ReferenceObject.json'))
-  .addSchema(require('@definitions/3.0.0/Reference.json'))
-  .addSchema(require('@definitions/3.0.0/tag.json'))
-  .addSchema(require('@definitions/3.0.0/externalDocs.json'))
-  .addSchema(require('@definitions/3.0.0/specificationExtension.json'))
-  .addSchema(require('@extensions/linkedin/0.1.0/schema.json'))
-  .addSchema(require('@extensions/x/0.1.0/schema.json'))
-  .compile(jsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Info'
+const validator = TestHelper.validator(require('@definitions/3.0.0/info.json'));
 
 describe('Info', () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
diff --git a/test/definitions/3.0.0/models/info/license/license.js b/test/definitions/3.0.0/models/info/license/license.js
index 85739cea..6a34da67 100644
--- a/test/definitions/3.0.0/models/info/license/license.js
+++ b/test/definitions/3.0.0/models/info/license/license.js
@@ -1,31 +1,16 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'License';
-const infoJsonSchema = require('@definitions/3.0.0/license.json');
-const validator = ajv
-  .addMetaSchema(require('@definitions/3.0.0/schema.json'))
-  .addSchema(require('@definitions/3.0.0/specificationExtension.json'))
-  .compile(infoJsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'License';
+const validator = TestHelper.validator(require('@definitions/3.0.0/license.json'));
 
 describe('License', () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
diff --git a/test/definitions/3.0.0/models/operation/operation/operation.js b/test/definitions/3.0.0/models/operation/operation/operation.js
index df4e0613..49090b52 100644
--- a/test/definitions/3.0.0/models/operation/operation/operation.js
+++ b/test/definitions/3.0.0/models/operation/operation/operation.js
@@ -1,64 +1,51 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Operation';
-const jsonSchema = require('@definitions/3.0.0/operation.json');
-import schemesV3_0_0 from '@test/ajv-schemes';
-const validator = schemesV3_0_0(ajv).compile(jsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Operation';
+const validator = TestHelper.validator(require('@definitions/3.0.0/operation.json'));
 
-describe.skip(`${jsonSchemaName}. Reason: errors with bindings, external docs, ...`, () => {
+describe.skip(`${title}. Reason: errors with bindings, external docs, ...`, () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/empty.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} with empty body is valid`);
+    assert(validationResult === true, `${title} with empty body is valid`);
   });
 
   it('without required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/without required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} without required properties is valid`);
+    assert(validationResult === true, `${title} without required properties is valid`);
   });
 
   it('only required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/only required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} is valid with only required properties`);
+    assert(validationResult === true, `${title} is valid with only required properties`);
   });
 
   it.skip('extended. Reason: schema doesn\'t check for extensions', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} can be extended`);
+    assert(validationResult === true, `${title} can be extended`);
   });
 
   it.skip('wrongly extended. Reason: schema doesn\'t check for extensions', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/wrongly extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === false, `${jsonSchemaName} is not valid when was wrongly extended`);
+    assert(validationResult === false, `${title} is not valid when was wrongly extended`);
     assert(validator.errors[0].message === 'must NOT have additional properties');
     assert(validator.errors[0].params.additionalProperty === 'ext-number');
     assert(validator.errors.length === 1);
diff --git a/test/definitions/3.0.0/models/operation/operationReply/operationReply.js b/test/definitions/3.0.0/models/operation/operationReply/operationReply.js
index 48643584..07477d4e 100644
--- a/test/definitions/3.0.0/models/operation/operationReply/operationReply.js
+++ b/test/definitions/3.0.0/models/operation/operationReply/operationReply.js
@@ -1,64 +1,51 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Operation Reply';
-const jsonSchema = require('@definitions/3.0.0/operationReplyAddress.json');
-import schemesV3_0_0 from '@test/ajv-schemes';
-const validator = schemesV3_0_0(ajv).compile(jsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Operation Reply';
+const validator = TestHelper.validator(require('@definitions/3.0.0/operationReply.json'));
 
-describe.skip(`${jsonSchemaName}. uri-reference not compatible with #/components/...`, () => {
+describe.skip(`${title}. uri-reference not compatible with #/components/...`, () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/empty.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} with empty body is valid`);
+    assert(validationResult === true, `${title} with empty body is valid`);
   });
 
   it('without required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/without required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} without required properties is valid`);
+    assert(validationResult === true, `${title} without required properties is valid`);
   });
 
   it('only required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/only required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} is valid with only required properties`);
+    assert(validationResult === true, `${title} is valid with only required properties`);
   });
 
   it('extended. Reason: schema doesn\'t check for extensions', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} can be extended`);
+    assert(validationResult === true, `${title} can be extended`);
   });
 
   it('wrongly extended. Reason: schema doesn\'t check for extensions', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/wrongly extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === false, `${jsonSchemaName} is not valid when was wrongly extended`);
+    assert(validationResult === false, `${title} is not valid when was wrongly extended`);
     assert(validator.errors[0].message === 'must NOT have additional properties');
     assert(validator.errors[0].params.additionalProperty === 'ext-number');
     assert(validator.errors.length === 1);
diff --git a/test/definitions/3.0.0/models/operation/operationReplyAddress/operationReplyAddress.js b/test/definitions/3.0.0/models/operation/operationReplyAddress/operationReplyAddress.js
index f026c46c..269a6f3b 100644
--- a/test/definitions/3.0.0/models/operation/operationReplyAddress/operationReplyAddress.js
+++ b/test/definitions/3.0.0/models/operation/operationReplyAddress/operationReplyAddress.js
@@ -1,36 +1,23 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Operation Reply Address';
-const jsonSchema = require('@definitions/3.0.0/operationReplyAddress.json');
-import schemesV3_0_0 from '@test/ajv-schemes';
-const validator = schemesV3_0_0(ajv).compile(jsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Operation Reply Address';
+const validator = TestHelper.validator(require('@definitions/3.0.0/operationReplyAddress.json'));
 
-describe(`${jsonSchemaName}`, () => {
+describe(`${title}`, () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/empty.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === false, `${jsonSchemaName} with empty body is not valid`);
+    assert(validationResult === false, `${title} with empty body is not valid`);
     assert(validator.errors[0].message === 'must have required property \'location\'');
     assert(validator.errors.length === 1);
   });
@@ -39,7 +26,7 @@ describe(`${jsonSchemaName}`, () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/without required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === false, `${jsonSchemaName} without required properties is valid`);
+    assert(validationResult === false, `${title} without required properties is valid`);
     assert(validator.errors[0].message === 'must have required property \'location\'');
     assert(validator.errors.length === 1);
   });
@@ -48,21 +35,21 @@ describe(`${jsonSchemaName}`, () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/only required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} is valid with only required properties`);
+    assert(validationResult === true, `${title} is valid with only required properties`);
   });
 
   it('extended. Reason: schema doesn\'t check for extensions', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} can be extended`);
+    assert(validationResult === true, `${title} can be extended`);
   });
 
   it('wrongly extended. Reason: schema doesn\'t check for extensions', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/wrongly extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === false, `${jsonSchemaName} is not valid when was wrongly extended`);
+    assert(validationResult === false, `${title} is not valid when was wrongly extended`);
     assert(validator.errors[0].message === 'must NOT have additional properties');
     assert(validator.errors[0].params.additionalProperty === 'ext-number');
     assert(validator.errors.length === 1);
diff --git a/test/definitions/3.0.0/models/operation/operationTrait/operationTrait.js b/test/definitions/3.0.0/models/operation/operationTrait/operationTrait.js
index 354481db..fee12beb 100644
--- a/test/definitions/3.0.0/models/operation/operationTrait/operationTrait.js
+++ b/test/definitions/3.0.0/models/operation/operationTrait/operationTrait.js
@@ -1,64 +1,51 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Operation Trait';
-const jsonSchema = require('@definitions/3.0.0/operationTrait.json');
-import schemesV3_0_0 from '@test/ajv-schemes';
-const validator = schemesV3_0_0(ajv).compile(jsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Operation Trait';
+const validator = TestHelper.validator(require('@definitions/3.0.0/operationTrait.json'));
 
-describe.skip(`${jsonSchemaName} Reason: errors with bindings, external docs, ...`, () => {
+describe.skip(`${title} Reason: errors with bindings, external docs, ...`, () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/empty.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} with empty body is valid`);
+    assert(validationResult === true, `${title} with empty body is valid`);
   });
 
   it('without required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/without required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} without required properties is valid`);
+    assert(validationResult === true, `${title} without required properties is valid`);
   });
 
   it('only required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/only required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} is valid with only required properties`);
+    assert(validationResult === true, `${title} is valid with only required properties`);
   });
 
   it.skip('extended. Reason: schema doesn\'t check for extensions', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} can be extended`);
+    assert(validationResult === true, `${title} can be extended`);
   });
 
   it.skip('wrongly extended. Reason: schema doesn\'t check for extensions', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/wrongly extended.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === false, `${jsonSchemaName} is not valid when was wrongly extended`);
+    assert(validationResult === false, `${title} is not valid when was wrongly extended`);
     assert(validator.errors[0].message === 'must NOT have additional properties');
     assert(validator.errors[0].params.additionalProperty === 'ext-number');
     assert(validator.errors.length === 1);
diff --git a/test/definitions/3.0.0/models/reference object/index.js b/test/definitions/3.0.0/models/reference object/index.js
index 9a638241..fa35ed6f 100644
--- a/test/definitions/3.0.0/models/reference object/index.js	
+++ b/test/definitions/3.0.0/models/reference object/index.js	
@@ -1,25 +1,11 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const infoJsonSchema = require('@definitions/3.0.0/Reference.json');
-const validator = ajv
-  .addMetaSchema(require('@definitions/3.0.0/schema.json'))
-  .addMetaSchema(require('@definitions/3.0.0/ReferenceObject.json'))
-  .compile(infoJsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Reference Object';
+const validator = TestHelper.validator(require('@definitions/3.0.0/Reference.json'));
 
-describe('ReferenceObject', () => {
+describe(`${title}`, () => {
   it('empty', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/empty.json`, 'utf-8'));
     const validationResult = validator(info);
diff --git a/test/definitions/3.0.0/models/reference/index.js b/test/definitions/3.0.0/models/reference/index.js
index 6e30d430..b993d1aa 100644
--- a/test/definitions/3.0.0/models/reference/index.js
+++ b/test/definitions/3.0.0/models/reference/index.js
@@ -1,32 +1,16 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-const path = require('path');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Reference';
-const infoJsonSchema = require('@definitions/3.0.0/Reference.json');
-const validator = ajv
-  .addMetaSchema(require('@definitions/3.0.0/schema.json'))
-  .addSchema(require('@definitions/3.0.0/ReferenceObject.json'))
-  .compile(infoJsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Reference';
+const validator = TestHelper.validator(require('@definitions/3.0.0/Reference.json'));
 
 describe('Reference', () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
diff --git a/test/definitions/3.0.0/models/server/server/index.js b/test/definitions/3.0.0/models/server/server/index.js
index 94b5645e..e76fd0be 100644
--- a/test/definitions/3.0.0/models/server/server/index.js
+++ b/test/definitions/3.0.0/models/server/server/index.js
@@ -1,51 +1,37 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-const path = require('path');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Server';
-const jsonSchema = require('@definitions/3.0.0/server.json');
-import schemesV3_0_0 from '@test/ajv-schemes';
-const validator = schemesV3_0_0(ajv).compile(jsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Server';
+const validator = TestHelper.validator(require('@definitions/3.0.0/server.json'));
 
-describe.skip(`${jsonSchemaName}. Reason: errors with bindings, external docs, ...`, () => {
+describe.skip(`${title}. Reason: errors with bindings, external docs, ...`, () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/empty.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} with empty body is valid`);
+    assert(validationResult === true, `${title} with empty body is valid`);
   });
 
   it('without required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/without required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} without required properties is valid`);
+    assert(validationResult === true, `${title} without required properties is valid`);
   });
 
   it('only required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/only required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} is valid with only required properties`);
+    assert(validationResult === true, `${title} is valid with only required properties`);
   });
 
   it.skip('extended. Reason: schema doesn\'t check for extensions', () => {
@@ -53,7 +39,7 @@ describe.skip(`${jsonSchemaName}. Reason: errors with bindings, external docs, .
     const model = JSON.parse(fs.readFileSync(filePath, 'utf-8'));
     const validationResult = validator(model);
 
-    assert(validationResult === true, `${jsonSchemaName} can be extended`);
+    assert(validationResult === true, `${title} can be extended`);
   });
 
   it.skip('wrongly extended. Reason: schema doesn\'t check for extensions', () => {
@@ -61,7 +47,7 @@ describe.skip(`${jsonSchemaName}. Reason: errors with bindings, external docs, .
     const model = JSON.parse(fs.readFileSync(filePath, 'utf-8'));
     const validationResult = validator(model);
 
-    assert(validationResult === false, `${jsonSchemaName} is not valid when was wrongly extended`);
+    assert(validationResult === false, `${title} is not valid when was wrongly extended`);
     assert(validator.errors[0].message === 'must NOT have additional properties');
     assert(validator.errors[0].params.additionalProperty === 'ext-number');
     assert(validator.errors.length === 1);
diff --git a/test/definitions/3.0.0/models/server/serverVariable/index.js b/test/definitions/3.0.0/models/server/serverVariable/index.js
index e4f661c7..99c9389c 100644
--- a/test/definitions/3.0.0/models/server/serverVariable/index.js
+++ b/test/definitions/3.0.0/models/server/serverVariable/index.js
@@ -1,51 +1,37 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-const path = require('path');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Server Variable';
-const jsonSchema = require('@definitions/3.0.0/serverVariable.json');
-import schemesV3_0_0 from '@test/ajv-schemes';
-const validator = schemesV3_0_0(ajv).compile(jsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Server Variable';
+const validator = TestHelper.validator(require('@definitions/3.0.0/serverVariable.json'));
 
-describe(`${jsonSchemaName}`, () => {
+describe(`${title}`, () => {
   it('example', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/empty.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} with empty body is valid`);
+    assert(validationResult === true, `${title} with empty body is valid`);
   });
 
   it('without required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/without required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} without required properties is valid`);
+    assert(validationResult === true, `${title} without required properties is valid`);
   });
 
   it('only required properties', () => {
     const info = JSON.parse(fs.readFileSync(`${__dirname}/only required properties.json`, 'utf-8'));
     const validationResult = validator(info);
 
-    assert(validationResult === true, `${jsonSchemaName} is valid with only required properties`);
+    assert(validationResult === true, `${title} is valid with only required properties`);
   });
 
   it.skip('extended. Reason: schema doesn\'t check for extensions', () => {
@@ -53,7 +39,7 @@ describe(`${jsonSchemaName}`, () => {
     const model = JSON.parse(fs.readFileSync(filePath, 'utf-8'));
     const validationResult = validator(model);
 
-    assert(validationResult === true, `${jsonSchemaName} can be extended`);
+    assert(validationResult === true, `${title} can be extended`);
   });
 
   it.skip('wrongly extended. Reason: schema doesn\'t check for extensions', () => {
@@ -61,7 +47,7 @@ describe(`${jsonSchemaName}`, () => {
     const model = JSON.parse(fs.readFileSync(filePath, 'utf-8'));
     const validationResult = validator(model);
 
-    assert(validationResult === false, `${jsonSchemaName} is not valid when was wrongly extended`);
+    assert(validationResult === false, `${title} is not valid when was wrongly extended`);
     assert(validator.errors[0].message === 'must NOT have additional properties');
     assert(validator.errors[0].params.additionalProperty === 'ext-number');
     assert(validator.errors.length === 1);
diff --git a/test/definitions/3.0.0/models/tag/index.js b/test/definitions/3.0.0/models/tag/index.js
index 78f0caef..a4628ea4 100644
--- a/test/definitions/3.0.0/models/tag/index.js
+++ b/test/definitions/3.0.0/models/tag/index.js
@@ -1,35 +1,16 @@
-const Ajv = require('ajv');
-const assert = require('assert');
-const addFormats = require('ajv-formats');
-const fs = require('fs');
-const path = require('path');
-
-const ajv = new Ajv({
-  jsonPointers: true,
-  allErrors: true,
-  schemaId: '$id',
-  logger: false,
-  validateFormats: true,
-  strict: false,
-});
-addFormats(ajv);
+import TestHelper from '@test/test-helper';
 
-const jsonSchemaName = 'Tag';
-const jsonSchema = require('@definitions/3.0.0/tag.json');
-const validator = ajv
-  .addMetaSchema(require('@definitions/3.0.0/schema.json'))
-  .addSchema(require('@definitions/3.0.0/Reference.json'))
-  .addSchema(require('@definitions/3.0.0/ReferenceObject.json'))
-  .addSchema(require('@definitions/3.0.0/externalDocs.json'))
-  .addSchema(require('@definitions/3.0.0/specificationExtension.json'))
-  .compile(jsonSchema);
+const fs = require('fs');
+const assert = require('assert');
+const title = 'Tag';
+const validator = TestHelper.validator(require('@definitions/3.0.0/tag.json'));
 
-describe(`${jsonSchemaName}`, () => {
+describe(`${title}`, () => {
   it('example', () => {
     const model = JSON.parse(fs.readFileSync(`${__dirname}/example.json`, 'utf-8'));
     const validationResult = validator(model);
 
-    assert(validationResult === true, `${jsonSchemaName} example MUST be valid`);
+    assert(validationResult === true, `${title} example MUST be valid`);
   });
 
   it('empty', () => {