Partially reverted https://github.com/ansman/validate.js/commit/bebe8…

specs/validators/datetime-spec.js

@@ -44,11 +44,12 @@ describe('validators.datetime', function() {
     expect(function() { datetime(null, {}); }).not.toThrow();
   });
 
-  it("allows undefined values", function() {
+  it("allows empty values", function() {
     spyOn(validate.validators.datetime, "parse");
     spyOn(validate.validators.datetime, "format");
     expect(datetime(null, {})).not.toBeDefined();
     expect(datetime(undefined, {})).not.toBeDefined();
+    expect(datetime("", {})).not.toBeDefined();
     expect(validate.validators.datetime.parse).not.toHaveBeenCalled();
     expect(validate.validators.datetime.format).not.toHaveBeenCalled();
   });
@@ -60,7 +61,6 @@ describe('validators.datetime', function() {
   it("doesn't allow invalid dates", function() {
     var expected = "must be a valid date";
     expect(datetime("foobar", {})).toEqual(expected);
-    expect(datetime("", {})).toEqual(expected);
     expect(datetime("  ", {})).toEqual(expected);
   });
 

specs/validators/email-spec.js

@@ -10,6 +10,7 @@ describe('validators.email', function() {
   it("allows empty values", function() {
     expect(email(null, {})).not.toBeDefined();
     expect(email(undefined, {})).not.toBeDefined();
+    expect(email("", {})).not.toBeDefined();
   });
 
   it("doesn't allow non strings", function() {
@@ -32,7 +33,6 @@ describe('validators.email', function() {
 
   it("doesn't allow 'invalid' emails", function() {
     var expected = "is not a valid email";
-    expect(email("", {})).toEqual(expected);
     expect(email(" ", {})).toEqual(expected);
     expect(email("foobar", {})).toEqual(expected);
     expect(email("foo@bar", {})).toEqual(expected);

specs/validators/exclusion-spec.js

@@ -10,11 +10,11 @@ describe("validators.exclusion", function() {
   it("allows empty values", function() {
     expect(exclusion(null, {})).not.toBeDefined();
     expect(exclusion(undefined, {})).not.toBeDefined();
+    expect(exclusion("", {})).not.toBeDefined();
   });
 
   it("returns nothing if the value is allowed", function() {
     var opts = {within: within};
-    expect(exclusion("", {})).not.toBeDefined();
     expect(exclusion(" ", {})).not.toBeDefined();
     expect(exclusion("quux", opts)).not.toBeDefined();
     expect(exclusion(false, opts)).not.toBeDefined();

specs/validators/format-spec.js

@@ -13,6 +13,8 @@ describe("validators.format", function() {
     expect(format(null, options2)).not.toBeDefined();
     expect(format(undefined, options1)).not.toBeDefined();
     expect(format(undefined, options2)).not.toBeDefined();
+    expect(format("", options1)).not.toBeDefined();
+    expect(format("", options2)).not.toBeDefined();
   });
 
   it("allows values that matches the pattern", function() {
@@ -21,8 +23,6 @@ describe("validators.format", function() {
   });
 
   it("doesn't allow values that doesn't matches the pattern", function() {
-    expect(format("", options1)).toBeDefined("is invalid");
-    expect(format("", options2)).toBeDefined("is invalid");
     expect(format(" ", options1)).toBeDefined("is invalid");
     expect(format(" ", options2)).toBeDefined("is invalid");
     expect(format("barfoo", options1)).toEqual("is invalid");

specs/validators/inclusion-spec.js

@@ -10,6 +10,7 @@ describe("validators.inclusion", function() {
   it("allows empty values", function() {
     expect(inclusion(null, {})).not.toBeDefined();
     expect(inclusion(undefined, {})).not.toBeDefined();
+    expect(inclusion("", {})).not.toBeDefined();
   });
 
   it("returns nothing if the value is allowed", function() {
@@ -21,7 +22,6 @@ describe("validators.inclusion", function() {
 
   it("returns an error if the value is not included", function() {
     var opts = {within: within};
-    expect(inclusion("", {})).toBeDefined();
     expect(inclusion(" ", {})).toBeDefined();
     expect(inclusion("quux", opts)).toEqual("^quux is not included in the list");
     expect(inclusion(false, opts)).toEqual("^false is not included in the list");

specs/validators/length-spec.js

@@ -83,6 +83,7 @@ describe('validator.length', function() {
     var options = {is: 10, minimum: 20, maximum: 5};
     expect(length(null, options)).not.toBeDefined();
     expect(length(undefined, options)).not.toBeDefined();
+    expect(length("", options)).not.toBeDefined();
   });
 
   it("refuses values without a numeric length property", function() {
@@ -108,7 +109,6 @@ describe('validator.length', function() {
       };
       expect(length({length: 9}, options)).toHaveLength(3);
       expect(length("foobar", options)).toHaveLength(3);
-      expect(length("", options)).toHaveLength(2);
       expect(length(" ", options)).toHaveLength(2);
   });
 

specs/validators/numericality-spec.js

@@ -21,6 +21,7 @@ describe("validators.numericality", function() {
   it("allows empty values", function() {
     expect(numericality(null, {})).not.toBeDefined();
     expect(numericality(undefined, {})).not.toBeDefined();
+    expect(numericality("", {})).not.toBeDefined();
   });
 
   it("allows numbers", function() {
@@ -30,7 +31,6 @@ describe("validators.numericality", function() {
 
   it("doesn't allow non numbers", function() {
     var e = "is not a number";
-    expect(numericality("", {})).toEqual(e);
     expect(numericality("  ", {})).toEqual(e);
     expect(numericality("foo", {})).toEqual(e);
     expect(numericality(NaN, {})).toEqual(e);

specs/validators/url-spec.js

@@ -10,6 +10,7 @@ describe("validators.url", function() {
   it("allows empty values", function() {
     expect(url(null, {})).not.toBeDefined();
     expect(url(undefined, {})).not.toBeDefined();
+    expect(url("", {})).not.toBeDefined();
   });
 
   it("doesn't allow non strings", function() {
@@ -21,7 +22,6 @@ describe("validators.url", function() {
   it("doesn't allow 'invalid' urls", function() {
     var expected = "is not a valid url";
 
-    expect(url("", {})).toBeDefined();
     expect(url(" ", {})).toBeDefined();
     expect(url("http://", {})).toBeDefined();
     expect(url("http://.", {})).toBeDefined();

validate.js

@@ -311,9 +311,13 @@
       }
     },
 
-    isEmpty: function(value) {
+    isEmpty: function(value, treatWhitespaceAsEmpty) {
       var attr;
 
+      if (treatWhitespaceAsEmpty === undefined) {
+        treatWhitespaceAsEmpty = true;
+      }
+
       // Null and undefined are empty
       if (!v.isDefined(value)) {
         return true;
@@ -326,7 +330,11 @@
 
       // Whitespace only strings are empty
       if (v.isString(value)) {
-        return v.EMPTY_STRING_REGEXP.test(value);
+        if (treatWhitespaceAsEmpty) {
+          return v.EMPTY_STRING_REGEXP.test(value);
+        }
+
+        return value === "";
       }
 
       // For arrays we use the length property
@@ -770,7 +778,7 @@
     },
     length: function(value, options, attribute) {
       // Empty values are allowed
-      if (!v.isDefined(value)) {
+      if (v.isEmpty(value, false)) {
         return;
       }
 
@@ -818,7 +826,7 @@
     },
     numericality: function(value, options) {
       // Empty values are fine
-      if (!v.isDefined(value)) {
+      if (v.isEmpty(value, false)) {
         return;
       }
 
@@ -919,7 +927,7 @@
       }
 
       // Empty values are fine
-      if (!v.isDefined(value)) {
+      if (v.isEmpty(value, false)) {
         return;
       }
 
@@ -989,7 +997,7 @@
         , match;
 
       // Empty values are allowed
-      if (!v.isDefined(value)) {
+      if (v.isEmpty(value, false)) {
         return;
       }
       if (!v.isString(value)) {
@@ -1006,7 +1014,7 @@
     },
     inclusion: function(value, options) {
       // Empty values are fine
-      if (!v.isDefined(value)) {
+      if (v.isEmpty(value, false)) {
         return;
       }
       if (v.isArray(options)) {
@@ -1023,7 +1031,7 @@
     },
     exclusion: function(value, options) {
       // Empty values are fine
-      if (!v.isDefined(value)) {
+      if (v.isEmpty(value, false)) {
         return;
       }
       if (v.isArray(options)) {
@@ -1040,7 +1048,7 @@
       options = v.extend({}, this.options, options);
       var message = options.message || this.message || "is not a valid email";
       // Empty values are fine
-      if (!v.isDefined(value)) {
+      if (v.isEmpty(value, false)) {
         return;
       }
       if (!v.isString(value)) {
@@ -1082,7 +1090,7 @@
     // A URL validator that is used to validate URLs with the ability to
     // restrict schemes and some domains.
     url: function(value, options) {
-      if (!v.isDefined(value)) {
+      if (v.isEmpty(value, false)) {
         return;
       }