Fix compiler test (#31)

* Add java version to workflow

* Update .gitignore

* Add java distribution to workflow

* Update workflow

* Rename output file for testing

* Lower version of generated .class file

* Set .class file version to appropriate value

.github/workflows/build.yml

@@ -33,6 +33,10 @@ jobs:
       - run: yarn install --frozen-lockfile
       - name: Build
         run: yarn build
+      - uses: actions/setup-java@v4
+        with:
+          distribution: 'oracle'
+          java-version: '17'
       - uses: ArtiomTr/jest-coverage-report-action@v2
         with:
           test-script: yarn test

.gitignore

@@ -44,4 +44,6 @@ lerna-debug.log*
 .env.local
 .vscode/settings.json
 
+
+# generated class files
 *.class

src/compiler/__tests__/test-utils.ts

@@ -35,8 +35,8 @@ export function runTest(program: string, expectedResult: string) {
 
   const prevDir = process.cwd();
   process.chdir(pathToTestDir);
-  execSync("java -noverify Main > output 2> err.log");
-  const actualResult = fs.readFileSync("./output", 'utf-8');
+  execSync("java -noverify Main > output.log 2> err.log");
+  const actualResult = fs.readFileSync("./output.log", 'utf-8');
   process.chdir(prevDir);
 
   expect(actualResult).toBe(expectedResult);

src/compiler/compiler.ts

@@ -15,7 +15,7 @@ import { generateCode } from "./code-generator";
 
 const MAGIC = 0xcafebabe;
 const MINOR_VERSION = 0;
-const MAJOR_VERSION = 61;
+const MAJOR_VERSION = 52;
 
 export class Compiler {
   private symbolTable: SymbolTable;