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

Example 6 with Diagnostic

use of javax.tools.Diagnostic in project auto by google.

the class AutoAnnotationCompilationTest method doTestMissingClass.

private void doTestMissingClass(File tempDir) {
    // Test that referring to an undefined annotation does not trigger @AutoAnnotation processing.
    // The class Erroneous references an undefined annotation @NotAutoAnnotation. If we didn't have
    // any special treatment of undefined types then we could run into a compiler bug where
    // AutoAnnotationProcessor would think that a method annotated with @NotAutoAnnotation was in
    // fact annotated with @AutoAnnotation. As it is, we do get an error about @NotAutoAnnotation
    // being undefined, and we do not get an error complaining that this supposed @AutoAnnotation
    // method is not static. We do need to have @AutoAnnotation appear somewhere so that the
    // processor will run.
    JavaFileObject erroneousJavaFileObject = JavaFileObjects.forSourceLines("com.example.annotations.Erroneous", "package com.example.annotations;", "", "import com.google.auto.value.AutoAnnotation;", "", "public class Erroneous {", "  @interface Empty {}", "  @AutoAnnotation static Empty newEmpty() {}", "  @NotAutoAnnotation Empty notNewEmpty() {}", "}");
    JavaCompiler javaCompiler = ToolProvider.getSystemJavaCompiler();
    DiagnosticCollector<JavaFileObject> diagnosticCollector = new DiagnosticCollector<JavaFileObject>();
    JavaCompiler.CompilationTask compilationTask = javaCompiler.getTask((Writer) null, (JavaFileManager) null, diagnosticCollector, ImmutableList.of("-d", tempDir.toString()), (Iterable<String>) null, ImmutableList.of(erroneousJavaFileObject));
    compilationTask.setProcessors(ImmutableList.of(new AutoAnnotationProcessor()));
    boolean result = compilationTask.call();
    assertThat(result).isFalse();
    List<Diagnostic<? extends JavaFileObject>> diagnostics = diagnosticCollector.getDiagnostics();
    assertThat(diagnostics).isNotEmpty();
    assertThat(diagnostics.get(0).getMessage(null)).contains("NotAutoAnnotation");
    assertThat(diagnostics.get(0).getMessage(null)).doesNotContain("static");
}

Example 7 with Diagnostic

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

the class CompilationTestHelper method doTest.

/**
   * Performs a compilation and checks that the diagnostics and result match the expectations.
   */
// TODO(eaftan): any way to ensure that this is actually called?
public void doTest() {
    Preconditions.checkState(!sources.isEmpty(), "No source files to compile");
    List<String> allArgs = buildArguments(args);
    Result result = compile(sources, allArgs.toArray(new String[allArgs.size()]));
    for (Diagnostic<? extends JavaFileObject> diagnostic : diagnosticHelper.getDiagnostics()) {
        if (diagnostic.getCode().contains("error.prone.crash")) {
            fail(diagnostic.getMessage(Locale.ENGLISH));
        }
    }
    if (expectNoDiagnostics) {
        List<Diagnostic<? extends JavaFileObject>> diagnostics = diagnosticHelper.getDiagnostics();
        assertWithMessage(String.format("Expected no diagnostics produced, but found %d: %s", diagnostics.size(), diagnostics)).that(diagnostics.size()).isEqualTo(0);
    } else {
        for (JavaFileObject source : sources) {
            try {
                diagnosticHelper.assertHasDiagnosticOnAllMatchingLines(source, lookForCheckNameInDiagnostic);
            } catch (IOException e) {
                throw new IOError(e);
            }
        }
        assertTrue("Unused error keys: " + diagnosticHelper.getUnusedLookupKeys(), diagnosticHelper.getUnusedLookupKeys().isEmpty());
    }
    if (expectedResult.isPresent()) {
        assertWithMessage(String.format("Expected compilation result %s, but was %s", expectedResult.get(), result)).that(result).isEqualTo(expectedResult.get());
    }
}

Example 8 with Diagnostic

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

the class ErrorProneCompilerIntegrationTest method maturityIsResetOnNextCompilation.

@Test
public void maturityIsResetOnNextCompilation() throws Exception {
    String[] testFile = { "public class Test {", "  public Test() {", "    if (true);", "  }", "}" };
    String[] args = { "-Xep:EmptyIf" };
    Result 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]")));
    assertThat(outputStream.toString(), exitCode, is(Result.ERROR));
    assertTrue("Error should be found. " + diagnosticHelper.describe(), matcher.matches(diagnosticHelper.getDiagnostics()));
    diagnosticHelper.clearDiagnostics();
    exitCode = compiler.compile(Arrays.asList(compiler.fileManager().forSourceLines("Test.java", testFile)));
    outputStream.flush();
    assertThat(outputStream.toString(), exitCode, is(Result.OK));
    assertThat(diagnosticHelper.getDiagnostics()).isEmpty();
}

Example 9 with Diagnostic

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

the class ErrorProneJavacPluginTest method hello.

@Test
public void hello() throws IOException {
    FileSystem fileSystem = Jimfs.newFileSystem(Configuration.unix());
    Path source = fileSystem.getPath("Test.java");
    Files.write(source, ImmutableList.of("import java.util.HashSet;", "import java.util.Set;", "class Test {", "  public static void main(String[] args) {", "    Set<Short> s = new HashSet<>();", "    for (short i = 0; i < 100; i++) {", "      s.add(i);", "      s.remove(i - 1);", "    }", "    System.out.println(s.size());", "  }", "}"), UTF_8);
    JavacFileManager fileManager = new JavacFileManager(new Context(), false, UTF_8);
    DiagnosticCollector<JavaFileObject> diagnosticCollector = new DiagnosticCollector<>();
    JavacTask task = JavacTool.create().getTask(null, fileManager, diagnosticCollector, ImmutableList.of("-Xplugin:ErrorProne"), ImmutableList.of(), fileManager.getJavaFileObjects(source));
    assertThat(task.call()).isFalse();
    Diagnostic<? extends JavaFileObject> diagnostic = diagnosticCollector.getDiagnostics().stream().filter(d -> d.getKind() == Diagnostic.Kind.ERROR).collect(onlyElement());
    assertThat(diagnostic.getMessage(ENGLISH)).contains("[CollectionIncompatibleType]");
}

Example 10 with Diagnostic

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

the class ErrorProneCompilerIntegrationTest method fileWithError.

@Test
public void fileWithError() throws Exception {
    Result exitCode = compiler.compile(compiler.fileManager().forResources(BadShiftAmount.class, "testdata/BadShiftAmountPositiveCases.java"));
    assertThat(outputStream.toString(), exitCode, is(Result.ERROR));
    Matcher<? super Iterable<Diagnostic<? extends JavaFileObject>>> matcher = hasItem(diagnosticMessage(containsString("[BadShiftAmount]")));
    assertTrue("Error should be found. " + diagnosticHelper.describe(), matcher.matches(diagnosticHelper.getDiagnostics()));
}