Method doTest

chasm/src/test/java/org/quiltmc/chasm/TestsBase.java:111–185

(TestDefinition testDefinition)

    }

    protected void doTest(TestDefinition testDefinition) throws IOException {
        // Load the test class
        Path classFile = testDefinition.getClassFile();
        Assertions.assertTrue(Files.isRegularFile(classFile), classFile + " does not exist");
        processor.addClass(Files.readAllBytes(classFile), new Metadata());

        // Load any additional classes
        for (String additionalClass : testDefinition.additionalClasses) {
            Path additionalClassFile = TEST_CLASSES_DIR.resolve(additionalClass + ".class");
            Assertions.assertTrue(Files.isRegularFile(additionalClassFile), additionalClassFile + " does not exist");
            processor.addClass(Files.readAllBytes(additionalClassFile), new Metadata());
        }


        // Add transformers
        for (String transformer : testDefinition.transformers) {
            Path transformerFile = TEST_TRANSFORMERS_DIR.resolve(transformer + ".chasm");
            Assertions.assertTrue(Files.isRegularFile(transformerFile), transformerFile + " does not exist");
            Node node = Node.parse(transformerFile);
            processor.addTransformer(new ChasmLangTransformer(transformer, node, processor.getContext()));
        }

        // Process the data
        List<ClassResult> processedClasses = processor.process();

        // Find the result class by name
        ClassReader resultClass = null;
        for (ClassResult result : processedClasses) {
            byte[] classBytes = result.getClassBytes();
            if (classBytes == null) {
                continue;
            }

            // Read basic class info
            resultClass = new ClassReader(classBytes);

            // Convert the JVM binary name (e.g. org/example/Class$Inner) into
            // the JLS binary name (e.g. org.example.Class$Inner)
            String binaryName = resultClass.getClassName().replace('/', '.');
            if (binaryName.equals(testDefinition.testClass)) {
                break;
            }
        }

        // Assert that the result class was found
        Assertions.assertNotNull(resultClass);

        // Write class into string
        StringWriter resultString = new StringWriter();
        TraceClassVisitor resultVisitor = new TraceClassVisitor(new PrintWriter(resultString) {
            @Override
            public void println() {
                // Always use unix-style line endings
                write('\n');
            }
        });
        resultClass.accept(resultVisitor, 0);