Examples with Diagnostic javax.tools.Diagnostic used on opensource projects

Example 21 with Diagnostic

use of javax.tools.Diagnostic in project error-prone by google.

the class ErrorProneJavaCompilerTest method testSeverityResetsAfterOverride.

@Test
public void testSeverityResetsAfterOverride() throws Exception {
    DiagnosticTestHelper diagnosticHelper = new DiagnosticTestHelper();
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    PrintWriter printWriter = new PrintWriter(new OutputStreamWriter(outputStream, UTF_8), true);
    ErrorProneInMemoryFileManager fileManager = new ErrorProneInMemoryFileManager();
    JavaCompiler errorProneJavaCompiler = new ErrorProneJavaCompiler();
    List<String> args = Lists.newArrayList("-d", tempDir.getRoot().getAbsolutePath(), "-proc:none", "-Xep:ChainingConstructorIgnoresParameter:WARN");
    List<JavaFileObject> sources = fileManager.forResources(ChainingConstructorIgnoresParameter.class, "testdata/ChainingConstructorIgnoresParameterPositiveCases.java");
    fileManager.close();
    JavaCompiler.CompilationTask task = errorProneJavaCompiler.getTask(printWriter, fileManager, diagnosticHelper.collector, args, null, sources);
    boolean succeeded = task.call();
    assertThat(succeeded).isTrue();
    Matcher<? super Iterable<Diagnostic<? extends JavaFileObject>>> matcher = hasItem(diagnosticMessage(containsString("[ChainingConstructorIgnoresParameter]")));
    assertTrue(matcher.matches(diagnosticHelper.getDiagnostics()));
    // reset state between compilations
    diagnosticHelper.clearDiagnostics();
    fileManager = new ErrorProneInMemoryFileManager();
    sources = fileManager.forResources(ChainingConstructorIgnoresParameter.class, "testdata/ChainingConstructorIgnoresParameterPositiveCases.java");
    fileManager.close();
    args.remove("-Xep:ChainingConstructorIgnoresParameter:WARN");
    task = errorProneJavaCompiler.getTask(printWriter, fileManager, diagnosticHelper.collector, args, null, sources);
    succeeded = task.call();
    assertThat(succeeded).isFalse();
    assertTrue(matcher.matches(diagnosticHelper.getDiagnostics()));
}

Example 22 with Diagnostic

use of javax.tools.Diagnostic in project error-prone by google.

the class ErrorProneCompilerIntegrationTest method ignoreGeneratedSuperInvocations.

// TODO(cushon) - how can we distinguish between synthetic super() calls and real ones?
@Ignore
@Test
public void ignoreGeneratedSuperInvocations() throws Exception {
    compilerBuilder.report(ScannerSupplier.fromBugCheckerClasses(SuperCallMatcher.class));
    compiler = compilerBuilder.build();
    Result exitCode = compiler.compile(Arrays.asList(compiler.fileManager().forSourceLines("Test.java", "public class Test {", "  public Test() {}", "}")));
    Matcher<? super Iterable<Diagnostic<? extends JavaFileObject>>> matcher = not(hasItem(diagnosticMessage(containsString("[SuperCallMatcher]"))));
    assertTrue("Warning should be found. " + diagnosticHelper.describe(), matcher.matches(diagnosticHelper.getDiagnostics()));
    assertThat(outputStream.toString(), exitCode, is(Result.OK));
}

Example 23 with Diagnostic

use of javax.tools.Diagnostic in project error-prone by google.

the class ErrorProneCompilerIntegrationTest method unhandledExceptionsAreReportedWithoutBugParadeLink.

@Test
public void unhandledExceptionsAreReportedWithoutBugParadeLink() throws Exception {
    compilerBuilder.report(ScannerSupplier.fromBugCheckerClasses(Throwing.class));
    compiler = compilerBuilder.build();
    Result exitCode = compiler.compile(compiler.fileManager().forResources(getClass(), "testdata/MultipleTopLevelClassesWithErrors.java", "testdata/ExtendedMultipleTopLevelClassesWithErrors.java"));
    assertThat(outputStream.toString(), exitCode, is(Result.ERROR));
    Matcher<? super Iterable<Diagnostic<? extends JavaFileObject>>> matcher = hasItem(diagnosticMessage(CoreMatchers.<String>allOf(containsString("IllegalStateException: test123"), containsString("unhandled exception was thrown by the Error Prone"))));
    assertTrue("Error should be reported. " + diagnosticHelper.describe(), matcher.matches(diagnosticHelper.getDiagnostics()));
}

Example 24 with Diagnostic

use of javax.tools.Diagnostic in project error-prone by google.

the class ErrorProneCompilerIntegrationTest method flagEnablesCheck.

@Test
public void flagEnablesCheck() throws Exception {
    String[] testFile = { "public class Test {", "  public Test() {", "    if (true);", "  }", "}" };
    Result exitCode = compiler.compile(Arrays.asList(compiler.fileManager().forSourceLines("Test.java", testFile)));
    outputStream.flush();
    assertThat(diagnosticHelper.getDiagnostics()).isEmpty();
    assertThat(outputStream.toString(), exitCode, is(Result.OK));
    String[] args = { "-Xep:EmptyIf" };
    exitCode = compiler.compile(args, Arrays.asList(compiler.fileManager().forSourceLines("Test.java", testFile)));
    outputStream.flush();
    Matcher<? super Iterable<Diagnostic<? extends JavaFileObject>>> matcher = hasItem(diagnosticMessage(containsString("[EmptyIf]")));
    assertTrue("Error should be found. " + diagnosticHelper.describe(), matcher.matches(diagnosticHelper.getDiagnostics()));
    assertThat(outputStream.toString(), exitCode, is(Result.ERROR));
}

Example 25 with Diagnostic

use of javax.tools.Diagnostic in project error-prone by google.

the class BugCheckerRefactoringTestHelper method doCompile.

private JCCompilationUnit doCompile(final JavaFileObject input, Iterable<JavaFileObject> files, Context context) throws IOException {
    JavacTool tool = JavacTool.create();
    DiagnosticCollector<JavaFileObject> diagnosticsCollector = new DiagnosticCollector<>();
    context.put(ErrorProneOptions.class, ErrorProneOptions.empty());
    JavacTaskImpl task = (JavacTaskImpl) tool.getTask(CharStreams.nullWriter(), fileManager, diagnosticsCollector, options, /*classes=*/
    null, files, context);
    Iterable<? extends CompilationUnitTree> trees = task.parse();
    task.analyze();
    JCCompilationUnit tree = Iterables.getOnlyElement(Iterables.filter(Iterables.filter(trees, JCCompilationUnit.class), compilationUnit -> compilationUnit.getSourceFile() == input));
    Iterable<Diagnostic<? extends JavaFileObject>> errorDiagnostics = Iterables.filter(diagnosticsCollector.getDiagnostics(), d -> d.getKind() == Diagnostic.Kind.ERROR);
    if (!Iterables.isEmpty(errorDiagnostics)) {
        fail("compilation failed unexpectedly: " + errorDiagnostics);
    }
    return tree;
}