org.eclipse.lsp4j.TextDocumentPositionParams Java Examples

@Test
public void testMethodImplementation() {
	URI uri = project.getFile("src/org/sample/IFoo.java").getRawLocationURI();
	String fileURI = ResourceUtils.fixURI(uri);

	TextDocumentPositionParams param = new TextDocumentPositionParams();
	param.setPosition(new Position(4, 14)); //Position over IFoo#someMethod
	param.setTextDocument(new TextDocumentIdentifier(fileURI));
	List<? extends Location> implementations = handler.findImplementations(param, monitor);
	assertNotNull("findImplementations should not return null", implementations);
	assertEquals(implementations.toString(), 1, implementations.size());
	Location foo2 = implementations.get(0);
	assertTrue("Unexpected implementation : " + foo2.getUri(), foo2.getUri().contains("org/sample/Foo2.java"));
	//check range points to someMethod() position
	assertEquals(new Position(4, 16), foo2.getRange().getStart());
	assertEquals(new Position(4, 26), foo2.getRange().getEnd());
}
 

@Test
void testLocalVariableDefinitionFromMethodCallArgument() throws Exception {
	Path filePath = srcRoot.resolve("Definitions.groovy");
	String uri = filePath.toUri().toString();
	StringBuilder contents = new StringBuilder();
	contents.append("class Definitions {\n");
	contents.append("  public Definitions() {\n");
	contents.append("    int localVar\n");
	contents.append("    this.method(localVar)\n");
	contents.append("  }\n");
	contents.append("  public void method(int param) {}\n");
	contents.append("}");
	TextDocumentItem textDocumentItem = new TextDocumentItem(uri, LANGUAGE_GROOVY, 1, contents.toString());
	services.didOpen(new DidOpenTextDocumentParams(textDocumentItem));
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
	Position position = new Position(3, 18);
	List<? extends Location> locations = services.definition(new TextDocumentPositionParams(textDocument, position))
			.get().getLeft();
	Assertions.assertEquals(1, locations.size());
	Location location = locations.get(0);
	Assertions.assertEquals(uri, location.getUri());
	Assertions.assertEquals(2, location.getRange().getStart().getLine());
	Assertions.assertEquals(8, location.getRange().getStart().getCharacter());
	Assertions.assertEquals(2, location.getRange().getEnd().getLine());
	Assertions.assertEquals(16, location.getRange().getEnd().getCharacter());
}
 

/**
 * Create the completion proposals.
 */
public CompletionList createCompletionList(Document document, XtextResource resource,
		TextDocumentPositionParams params, CancelIndicator cancelIndicator) {
	CompletionList result = new CompletionList();
	result.setIsIncomplete(false);
	// we set isInComplete to true, so we get asked always, which is the best match to the expected behavior in
	// Xtext
	XIdeContentProposalAcceptor acceptor = new XIdeContentProposalAcceptor(cancelIndicator);
	int caretOffset = document.getOffSet(params.getPosition());
	Position caretPosition = params.getPosition();
	TextRegion position = new TextRegion(caretOffset, 0);
	try {
		createProposals(document.getContents(), position, caretOffset, resource, acceptor);
	} catch (Throwable t) {
		if (!operationCanceledManager.isOperationCanceledException(t)) {
			throw t;
		}
	}
	operationCanceledManager.checkCanceled(cancelIndicator);
	IterableExtensions.forEach(acceptor.getEntries(), (it, idx) -> {
		CompletionItem item = toCompletionItem(it, caretOffset, caretPosition, document);
		item.setSortText(Strings.padStart(Integer.toString(idx.intValue()), 5, '0'));
		result.getItems().add(item);
	});
	return result;
}
 

@Test
void testLocalVariableDefinitionFromDeclaration() throws Exception {
	Path filePath = srcRoot.resolve("Definitions.groovy");
	String uri = filePath.toUri().toString();
	StringBuilder contents = new StringBuilder();
	contents.append("class Definitions {\n");
	contents.append("  public Definitions() {\n");
	contents.append("    int localVar\n");
	contents.append("  }\n");
	contents.append("}");
	TextDocumentItem textDocumentItem = new TextDocumentItem(uri, LANGUAGE_GROOVY, 1, contents.toString());
	services.didOpen(new DidOpenTextDocumentParams(textDocumentItem));
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
	Position position = new Position(2, 14);
	List<? extends Location> locations = services.definition(new TextDocumentPositionParams(textDocument, position))
			.get().getLeft();
	Assertions.assertEquals(1, locations.size());
	Location location = locations.get(0);
	Assertions.assertEquals(uri, location.getUri());
	Assertions.assertEquals(2, location.getRange().getStart().getLine());
	Assertions.assertEquals(8, location.getRange().getStart().getCharacter());
	Assertions.assertEquals(2, location.getRange().getEnd().getLine());
	Assertions.assertEquals(16, location.getRange().getEnd().getCharacter());
}
 

@Test
void testLocalVariableDefinitionFromAssignment() throws Exception {
	Path filePath = srcRoot.resolve("Definitions.groovy");
	String uri = filePath.toUri().toString();
	StringBuilder contents = new StringBuilder();
	contents.append("class Definitions {\n");
	contents.append("  public Definitions() {\n");
	contents.append("    int localVar\n");
	contents.append("    localVar = 123\n");
	contents.append("  }\n");
	contents.append("}");
	TextDocumentItem textDocumentItem = new TextDocumentItem(uri, LANGUAGE_GROOVY, 1, contents.toString());
	services.didOpen(new DidOpenTextDocumentParams(textDocumentItem));
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
	Position position = new Position(3, 6);
	List<? extends Location> locations = services.definition(new TextDocumentPositionParams(textDocument, position))
			.get().getLeft();
	Assertions.assertEquals(1, locations.size());
	Location location = locations.get(0);
	Assertions.assertEquals(uri, location.getUri());
	Assertions.assertEquals(2, location.getRange().getStart().getLine());
	Assertions.assertEquals(8, location.getRange().getStart().getCharacter());
	Assertions.assertEquals(2, location.getRange().getEnd().getLine());
	Assertions.assertEquals(16, location.getRange().getEnd().getCharacter());
}
 

@Test
public void testInvalidJavadoc() throws Exception {
	importProjects("maven/aspose");
	IProject project = null;
	ICompilationUnit unit = null;
	try {
		project = ResourcesPlugin.getWorkspace().getRoot().getProject("aspose");
		IJavaProject javaProject = JavaCore.create(project);
		IType type = javaProject.findType("org.sample.TestJavadoc");
		unit = type.getCompilationUnit();
		unit.becomeWorkingCopy(null);
		String uri = JDTUtils.toURI(unit);
		TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
		TextDocumentPositionParams position = new TextDocumentPositionParams(textDocument, new Position(8, 24));
		Hover hover = handler.hover(position, monitor);
		assertNotNull(hover);
		assertNotNull(hover.getContents());
		assertEquals(1, hover.getContents().getLeft().size());
		assertEquals("com.aspose.words.Document.Document(String fileName) throws Exception", hover.getContents().getLeft().get(0).getRight().getValue());
	} finally {
		if (unit != null) {
			unit.discardWorkingCopy();
		}
	}
}
 

@Test
void testMemberMethodTypeDefinitionFromDeclaration() throws Exception {
	Path filePath = srcRoot.resolve("Definitions.groovy");
	String uri = filePath.toUri().toString();
	StringBuilder contents = new StringBuilder();
	contents.append("class TypeDefinitions {\n");
	contents.append("  public TypeDefinitions memberMethod() {\n");
	contents.append("  }\n");
	contents.append("}");
	TextDocumentItem textDocumentItem = new TextDocumentItem(uri, LANGUAGE_GROOVY, 1, contents.toString());
	services.didOpen(new DidOpenTextDocumentParams(textDocumentItem));
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
	Position position = new Position(1, 27);
	List<? extends Location> locations = services
			.typeDefinition(new TextDocumentPositionParams(textDocument, position)).get().getLeft();
	Assertions.assertEquals(1, locations.size());
	Location location = locations.get(0);
	Assertions.assertEquals(uri, location.getUri());
	Assertions.assertEquals(0, location.getRange().getStart().getLine());
	Assertions.assertEquals(0, location.getRange().getStart().getCharacter());
	Assertions.assertEquals(3, location.getRange().getEnd().getLine());
	Assertions.assertEquals(1, location.getRange().getEnd().getCharacter());
}
 

@Test
void testMemberVariableTypeDefinitionFromAssignment() throws Exception {
	Path filePath = srcRoot.resolve("Definitions.groovy");
	String uri = filePath.toUri().toString();
	StringBuilder contents = new StringBuilder();
	contents.append("class TypeDefinitions {\n");
	contents.append("  TypeDefinitions memberVar\n");
	contents.append("  public TypeDefinitions() {\n");
	contents.append("    memberVar = null\n");
	contents.append("  }\n");
	contents.append("}");
	TextDocumentItem textDocumentItem = new TextDocumentItem(uri, LANGUAGE_GROOVY, 1, contents.toString());
	services.didOpen(new DidOpenTextDocumentParams(textDocumentItem));
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
	Position position = new Position(3, 6);
	List<? extends Location> locations = services
			.typeDefinition(new TextDocumentPositionParams(textDocument, position)).get().getLeft();
	Assertions.assertEquals(1, locations.size());
	Location location = locations.get(0);
	Assertions.assertEquals(uri, location.getUri());
	Assertions.assertEquals(0, location.getRange().getStart().getLine());
	Assertions.assertEquals(0, location.getRange().getStart().getCharacter());
	Assertions.assertEquals(5, location.getRange().getEnd().getLine());
	Assertions.assertEquals(1, location.getRange().getEnd().getCharacter());
}
 

@Test
void testMemberVariableTypeDefinitionFromDeclaration() throws Exception {
	Path filePath = srcRoot.resolve("Definitions.groovy");
	String uri = filePath.toUri().toString();
	StringBuilder contents = new StringBuilder();
	contents.append("class TypeDefinitions {\n");
	contents.append("  TypeDefinitions memberVar\n");
	contents.append("}");
	TextDocumentItem textDocumentItem = new TextDocumentItem(uri, LANGUAGE_GROOVY, 1, contents.toString());
	services.didOpen(new DidOpenTextDocumentParams(textDocumentItem));
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
	Position position = new Position(1, 20);
	List<? extends Location> locations = services
			.typeDefinition(new TextDocumentPositionParams(textDocument, position)).get().getLeft();
	Assertions.assertEquals(1, locations.size());
	Location location = locations.get(0);
	Assertions.assertEquals(uri, location.getUri());
	Assertions.assertEquals(0, location.getRange().getStart().getLine());
	Assertions.assertEquals(0, location.getRange().getStart().getCharacter());
	Assertions.assertEquals(2, location.getRange().getEnd().getLine());
	Assertions.assertEquals(1, location.getRange().getEnd().getCharacter());
}
 

@Test
public void testHoverOnJavadocWithValueTag() throws Exception {
	importProjects("maven/salut");
	project = WorkspaceHelper.getProject("salut");
	handler = new HoverHandler(preferenceManager);
	//given
	String payload = createHoverRequest("src/main/java/java/Foo2.java", 12, 30);
	TextDocumentPositionParams position = getParams(payload);

	// when
	Hover hover = handler.hover(position, monitor);
	assertNotNull("Hover is null", hover);
	assertEquals("Unexpected hover contents:\n" + hover.getContents(), 2, hover.getContents().getLeft().size());
	Either<String, MarkedString> javadoc = hover.getContents().getLeft().get(1);
	String content = null;
	assertTrue("javadoc has null content", javadoc != null && javadoc.getLeft() != null && (content = javadoc.getLeft()) != null);
	assertMatches("\\[\"SimpleStringData\"\\]\\(file:/.*/salut/src/main/java/java/Foo2.java#13\\) is a simple String", content);
}
 

@Test
void testLocalVariableTypeDefinitionFromAssignment() throws Exception {
	Path filePath = srcRoot.resolve("Definitions.groovy");
	String uri = filePath.toUri().toString();
	StringBuilder contents = new StringBuilder();
	contents.append("class TypeDefinitions {\n");
	contents.append("  public TypeDefinitions() {\n");
	contents.append("    TypeDefinitions localVar\n");
	contents.append("    localVar = null\n");
	contents.append("  }\n");
	contents.append("}");
	TextDocumentItem textDocumentItem = new TextDocumentItem(uri, LANGUAGE_GROOVY, 1, contents.toString());
	services.didOpen(new DidOpenTextDocumentParams(textDocumentItem));
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
	Position position = new Position(3, 6);
	List<? extends Location> locations = services
			.typeDefinition(new TextDocumentPositionParams(textDocument, position)).get().getLeft();
	Assertions.assertEquals(1, locations.size());
	Location location = locations.get(0);
	Assertions.assertEquals(uri, location.getUri());
	Assertions.assertEquals(0, location.getRange().getStart().getLine());
	Assertions.assertEquals(0, location.getRange().getStart().getCharacter());
	Assertions.assertEquals(5, location.getRange().getEnd().getLine());
	Assertions.assertEquals(1, location.getRange().getEnd().getCharacter());
}
 

@Test
void testLocalVariableTypeDefinitionFromDeclaration() throws Exception {
	Path filePath = srcRoot.resolve("Definitions.groovy");
	String uri = filePath.toUri().toString();
	StringBuilder contents = new StringBuilder();
	contents.append("class TypeDefinitions {\n");
	contents.append("  public TypeDefinitions() {\n");
	contents.append("    TypeDefinitions localVar\n");
	contents.append("  }\n");
	contents.append("}");
	TextDocumentItem textDocumentItem = new TextDocumentItem(uri, LANGUAGE_GROOVY, 1, contents.toString());
	services.didOpen(new DidOpenTextDocumentParams(textDocumentItem));
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
	Position position = new Position(2, 22);
	List<? extends Location> locations = services
			.typeDefinition(new TextDocumentPositionParams(textDocument, position)).get().getLeft();
	Assertions.assertEquals(1, locations.size());
	Location location = locations.get(0);
	Assertions.assertEquals(uri, location.getUri());
	Assertions.assertEquals(0, location.getRange().getStart().getLine());
	Assertions.assertEquals(0, location.getRange().getStart().getCharacter());
	Assertions.assertEquals(4, location.getRange().getEnd().getLine());
	Assertions.assertEquals(1, location.getRange().getEnd().getCharacter());
}
 

@Test
public void testHoverThrowable() throws Exception {
	String uriString = ClassFileUtil.getURI(project, "java.lang.Exception");
	IClassFile classFile = JDTUtils.resolveClassFile(uriString);
	String contents = JavaLanguageServerPlugin.getContentProviderManager().getSource(classFile, monitor);
	IDocument document = new Document(contents);
	IRegion region = new FindReplaceDocumentAdapter(document).find(0, "Throwable", true, false, false, false);
	int offset = region.getOffset();
	int line = document.getLineOfOffset(offset);
	int character = offset - document.getLineOffset(line);
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uriString);
	Position position = new Position(line, character);
	TextDocumentPositionParams params = new TextDocumentPositionParams(textDocument, position);
	Hover hover = handler.hover(params, monitor);
	assertNotNull(hover);
	assertTrue("Unexpected hover ", !hover.getContents().getLeft().isEmpty());
}
 

@Test
public void testMethodInvocationImplementation() {
	URI uri = project.getFile("src/org/sample/FooService.java").getRawLocationURI();
	String fileURI = ResourceUtils.fixURI(uri);

	TextDocumentPositionParams param = new TextDocumentPositionParams();
	param.setPosition(new Position(6, 14)); //Position over foo.someMethod
	param.setTextDocument(new TextDocumentIdentifier(fileURI));
	List<? extends Location> implementations = handler.findImplementations(param, monitor);
	assertNotNull("findImplementations should not return null", implementations);
	assertEquals(implementations.toString(), 1, implementations.size());
	Location foo2 = implementations.get(0);
	assertTrue("Unexpected implementation : " + foo2.getUri(), foo2.getUri().contains("org/sample/Foo2.java"));
	//check range points to someMethod() position
	assertEquals(new Position(4, 16), foo2.getRange().getStart());
	assertEquals(new Position(4, 26), foo2.getRange().getEnd());
}
 

@Test
public void testHoverOnJava10var() throws Exception {
	importProjects("eclipse/java10");
	project = WorkspaceHelper.getProject("java10");
	assertNoErrors(project);

	handler = new HoverHandler(preferenceManager);
	//given
	//Hovers on name.toUpperCase()
	String payload = createHoverRequest("src/main/java/foo/bar/Foo.java", 8, 34);
	TextDocumentPositionParams position = getParams(payload);

	//when
	Hover hover = handler.hover(position, monitor);
	assertNotNull(hover);
	assertNotNull(hover.toString(), hover.getContents().getLeft().get(0).getRight());
	String javadoc = hover.getContents().getLeft().get(0).getRight().getValue();
	assertEquals("String java.lang.String.toUpperCase()", javadoc);

}
 

@Test
void testMemberMethodDefinitionFromDeclaration() throws Exception {
	Path filePath = srcRoot.resolve("Definitions.groovy");
	String uri = filePath.toUri().toString();
	StringBuilder contents = new StringBuilder();
	contents.append("class Definitions {\n");
	contents.append("  public void memberMethod() {}\n");
	contents.append("}\n");
	TextDocumentItem textDocumentItem = new TextDocumentItem(uri, LANGUAGE_GROOVY, 1, contents.toString());
	services.didOpen(new DidOpenTextDocumentParams(textDocumentItem));
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
	Position position = new Position(1, 16);
	List<? extends Location> locations = services.definition(new TextDocumentPositionParams(textDocument, position))
			.get().getLeft();
	Assertions.assertEquals(1, locations.size());
	Location location = locations.get(0);
	Assertions.assertEquals(uri, location.getUri());
	Assertions.assertEquals(1, location.getRange().getStart().getLine());
	Assertions.assertEquals(2, location.getRange().getStart().getCharacter());
	Assertions.assertEquals(1, location.getRange().getEnd().getLine());
	Assertions.assertEquals(31, location.getRange().getEnd().getCharacter());
}
 

@Test
void testMemberMethodDefinitionFromCall() throws Exception {
	Path filePath = srcRoot.resolve("Definitions.groovy");
	String uri = filePath.toUri().toString();
	StringBuilder contents = new StringBuilder();
	contents.append("class Definitions {\n");
	contents.append("  public void memberMethod() {}\n");
	contents.append("  public Definitions() {\n");
	contents.append("    memberMethod()\n");
	contents.append("  }\n");
	contents.append("}\n");
	TextDocumentItem textDocumentItem = new TextDocumentItem(uri, LANGUAGE_GROOVY, 1, contents.toString());
	services.didOpen(new DidOpenTextDocumentParams(textDocumentItem));
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
	Position position = new Position(3, 6);
	List<? extends Location> locations = services.definition(new TextDocumentPositionParams(textDocument, position))
			.get().getLeft();
	Assertions.assertEquals(1, locations.size());
	Location location = locations.get(0);
	Assertions.assertEquals(uri, location.getUri());
	Assertions.assertEquals(1, location.getRange().getStart().getLine());
	Assertions.assertEquals(2, location.getRange().getStart().getCharacter());
	Assertions.assertEquals(1, location.getRange().getEnd().getLine());
	Assertions.assertEquals(31, location.getRange().getEnd().getCharacter());
}
 

@Test
public void testHoverVariable() throws Exception {
	//given
	//Hover on args parameter
	String argParam = createHoverRequest("src/java/Foo.java", 7, 37);
	TextDocumentPositionParams position = getParams(argParam);

	//when
	Hover hover = handler.hover(position, monitor);

	//then
	assertNotNull(hover);
	assertNotNull(hover.getContents());
	MarkedString signature = hover.getContents().getLeft().get(0).getRight();
	assertEquals("Unexpected hover " + signature, "java", signature.getLanguage());
	assertEquals("Unexpected hover " + signature, "String[] args - java.Foo.main(String[])", signature.getValue());
}
 

@Test
void testConstructorDefinitionFromConstructorCall() throws Exception {
	Path filePath = srcRoot.resolve("Definitions.groovy");
	String uri = filePath.toUri().toString();
	StringBuilder contents = new StringBuilder();
	contents.append("class Definitions {\n");
	contents.append("  public Definitions() {\n");
	contents.append("    new Definitions()\n");
	contents.append("  }\n");
	contents.append("}");
	TextDocumentItem textDocumentItem = new TextDocumentItem(uri, LANGUAGE_GROOVY, 1, contents.toString());
	services.didOpen(new DidOpenTextDocumentParams(textDocumentItem));
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
	Position position = new Position(2, 10);
	List<? extends Location> locations = services.definition(new TextDocumentPositionParams(textDocument, position))
			.get().getLeft();
	Assertions.assertEquals(1, locations.size());
	Location location = locations.get(0);
	Assertions.assertEquals(uri, location.getUri());
	Assertions.assertEquals(1, location.getRange().getStart().getLine());
	Assertions.assertEquals(2, location.getRange().getStart().getCharacter());
	Assertions.assertEquals(3, location.getRange().getEnd().getLine());
	Assertions.assertEquals(3, location.getRange().getEnd().getCharacter());
}
 

@Test
void testClassDefinitionFromVariableDeclaration() throws Exception {
	Path filePath = srcRoot.resolve("Definitions.groovy");
	String uri = filePath.toUri().toString();
	StringBuilder contents = new StringBuilder();
	contents.append("class Definitions {\n");
	contents.append("  public Definitions() {\n");
	contents.append("    Definitions d\n");
	contents.append("  }\n");
	contents.append("}");
	TextDocumentItem textDocumentItem = new TextDocumentItem(uri, LANGUAGE_GROOVY, 1, contents.toString());
	services.didOpen(new DidOpenTextDocumentParams(textDocumentItem));
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
	Position position = new Position(2, 6);
	List<? extends Location> locations = services.definition(new TextDocumentPositionParams(textDocument, position))
			.get().getLeft();
	Assertions.assertEquals(1, locations.size());
	Location location = locations.get(0);
	Assertions.assertEquals(uri, location.getUri());
	Assertions.assertEquals(0, location.getRange().getStart().getLine());
	Assertions.assertEquals(0, location.getRange().getStart().getCharacter());
	Assertions.assertEquals(4, location.getRange().getEnd().getLine());
	Assertions.assertEquals(1, location.getRange().getEnd().getCharacter());
}
 

@Test
void testClassDefinitionFromClassExpression() throws Exception {
	Path filePath = srcRoot.resolve("Definitions.groovy");
	String uri = filePath.toUri().toString();
	StringBuilder contents = new StringBuilder();
	contents.append("class Definitions {\n");
	contents.append("  public static void staticMethod() {}\n");
	contents.append("  public Definitions() {\n");
	contents.append("    Definitions.staticMethod()\n");
	contents.append("  }\n");
	contents.append("}");
	TextDocumentItem textDocumentItem = new TextDocumentItem(uri, LANGUAGE_GROOVY, 1, contents.toString());
	services.didOpen(new DidOpenTextDocumentParams(textDocumentItem));
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
	Position position = new Position(3, 6);
	List<? extends Location> locations = services.definition(new TextDocumentPositionParams(textDocument, position))
			.get().getLeft();
	Assertions.assertEquals(1, locations.size());
	Location location = locations.get(0);
	Assertions.assertEquals(uri, location.getUri());
	Assertions.assertEquals(0, location.getRange().getStart().getLine());
	Assertions.assertEquals(0, location.getRange().getStart().getCharacter());
	Assertions.assertEquals(5, location.getRange().getEnd().getLine());
	Assertions.assertEquals(1, location.getRange().getEnd().getCharacter());
}
 

@Test
void testParameterDefinitionFromDeclarationInConstructor() throws Exception {
	Path filePath = srcRoot.resolve("Definitions.groovy");
	String uri = filePath.toUri().toString();
	StringBuilder contents = new StringBuilder();
	contents.append("class Definitions {\n");
	contents.append("  public Definitions(int param) {\n");
	contents.append("  }\n");
	contents.append("}\n");
	TextDocumentItem textDocumentItem = new TextDocumentItem(uri, LANGUAGE_GROOVY, 1, contents.toString());
	services.didOpen(new DidOpenTextDocumentParams(textDocumentItem));
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
	Position position = new Position(1, 27);
	List<? extends Location> locations = services.definition(new TextDocumentPositionParams(textDocument, position))
			.get().getLeft();
	Assertions.assertEquals(1, locations.size());
	Location location = locations.get(0);
	Assertions.assertEquals(uri, location.getUri());
	Assertions.assertEquals(1, location.getRange().getStart().getLine());
	Assertions.assertEquals(21, location.getRange().getStart().getCharacter());
	Assertions.assertEquals(1, location.getRange().getEnd().getLine());
	Assertions.assertEquals(30, location.getRange().getEnd().getCharacter());
}
 

@Test
void testParameterDefinitionFromDeclarationInMethod() throws Exception {
	Path filePath = srcRoot.resolve("Definitions.groovy");
	String uri = filePath.toUri().toString();
	StringBuilder contents = new StringBuilder();
	contents.append("class Definitions {\n");
	contents.append("  public void memberMethod(int param) {\n");
	contents.append("  }\n");
	contents.append("}\n");
	TextDocumentItem textDocumentItem = new TextDocumentItem(uri, LANGUAGE_GROOVY, 1, contents.toString());
	services.didOpen(new DidOpenTextDocumentParams(textDocumentItem));
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
	Position position = new Position(1, 33);
	List<? extends Location> locations = services.definition(new TextDocumentPositionParams(textDocument, position))
			.get().getLeft();
	Assertions.assertEquals(1, locations.size());
	Location location = locations.get(0);
	Assertions.assertEquals(uri, location.getUri());
	Assertions.assertEquals(1, location.getRange().getStart().getLine());
	Assertions.assertEquals(27, location.getRange().getStart().getCharacter());
	Assertions.assertEquals(1, location.getRange().getEnd().getLine());
	Assertions.assertEquals(36, location.getRange().getEnd().getCharacter());
}
 

@Test
void testParameterDefinitionFromReference() throws Exception {
	Path filePath = srcRoot.resolve("Definitions.groovy");
	String uri = filePath.toUri().toString();
	StringBuilder contents = new StringBuilder();
	contents.append("class Definitions {\n");
	contents.append("  public void memberMethod(int param) {\n");
	contents.append("    param\n");
	contents.append("  }\n");
	contents.append("}\n");
	TextDocumentItem textDocumentItem = new TextDocumentItem(uri, LANGUAGE_GROOVY, 1, contents.toString());
	services.didOpen(new DidOpenTextDocumentParams(textDocumentItem));
	TextDocumentIdentifier textDocument = new TextDocumentIdentifier(uri);
	Position position = new Position(2, 6);
	List<? extends Location> locations = services.definition(new TextDocumentPositionParams(textDocument, position))
			.get().getLeft();
	Assertions.assertEquals(1, locations.size());
	Location location = locations.get(0);
	Assertions.assertEquals(uri, location.getUri());
	Assertions.assertEquals(1, location.getRange().getStart().getLine());
	Assertions.assertEquals(27, location.getRange().getStart().getCharacter());
	Assertions.assertEquals(1, location.getRange().getEnd().getLine());
	Assertions.assertEquals(36, location.getRange().getEnd().getCharacter());
}
 

@Test
public void testInterfaceImplementation() {
	URI uri = project.getFile("src/org/sample/IFoo.java").getRawLocationURI();
	String fileURI = ResourceUtils.fixURI(uri);
	TextDocumentPositionParams param = new TextDocumentPositionParams();
	param.setPosition(new Position(2, 20)); //Position over IFoo
	param.setTextDocument(new TextDocumentIdentifier(fileURI));
	List<? extends Location> implementations = handler.findImplementations(param, monitor);
	assertNotNull("findImplementations should not return null", implementations);
	assertEquals(2, implementations.size());
	Location foo2 = implementations.get(0);
	assertTrue("Unexpected implementation : " + foo2.getUri(), foo2.getUri().contains("org/sample/Foo2.java"));
	assertEquals(JDTUtils.newLineRange(2, 13, 17), foo2.getRange());
	Location foo3 = implementations.get(1);
	assertTrue("Unexpected implementation : " + foo3.getUri(), foo3.getUri().contains("org/sample/Foo3.java"));
	assertEquals(JDTUtils.newLineRange(5, 13, 17), foo3.getRange());
}
 

@Test
public void testNoSuperMethod() throws JavaModelException {
	IPackageFragment pack1 = sourceFolder.createPackageFragment("test1", false, null);
	//@formatter:off
	ICompilationUnit unitA = pack1.createCompilationUnit("A.java", "package test1;\n" +
			"\n" +
			"public class A {\n" +
			"	public void run() {\n" +
			"	}\n" +
			"}", true, null);
	//@formatter:on

	String uri = JDTUtils.toURI(unitA);
	List<? extends Location> response = FindLinksHandler.findLinks("superImplementation", new TextDocumentPositionParams(new TextDocumentIdentifier(uri), new Position(3, 14)), new NullProgressMonitor());
	assertTrue(response == null || response.isEmpty());
}
 

@Test
public void testHover() throws Exception {
	//given
	//Hovers on the System.out
	String payload = createHoverRequest("src/java/Foo.java", 5, 15);
	TextDocumentPositionParams position = getParams(payload);

	//when
	Hover hover = handler.hover(position, monitor);

	//then
	assertNotNull(hover);
	assertNotNull(hover.getContents());
	MarkedString signature = hover.getContents().getLeft().get(0).getRight();
	assertEquals("Unexpected hover " + signature, "java", signature.getLanguage());
	assertEquals("Unexpected hover " + signature, "java.Foo", signature.getValue());
	String doc = hover.getContents().getLeft().get(1).getLeft();
	assertEquals("Unexpected hover " + doc, "This is foo", doc);
}
 

@Test
public void testHoverWhenLinkDoesNotExist() throws Exception {
	importProjects("maven/salut");
	project = WorkspaceHelper.getProject("salut");
	handler = new HoverHandler(preferenceManager);

	//given
	String payload = createHoverRequest("src/main/java/java/Foo2.java", 51, 25);
	TextDocumentPositionParams position = getParams(payload);

	// when
	Hover hover = handler.hover(position, monitor);
	assertNotNull("Hover is null", hover);
	assertEquals("Unexpected hover contents:\n" + hover.getContents(), 2, hover.getContents().getLeft().size());
	Either<String, MarkedString> javadoc = hover.getContents().getLeft().get(1);
	String content = null;
	assertTrue("javadoc has null content", javadoc != null && javadoc.getLeft() != null && (content = javadoc.getLeft()) != null);
	assertMatches("This link doesnt work LinkToSomethingNotFound", content);
}
 

/***/
@Test
public void testDefinition_04() throws Exception {
	testWorkspaceManager.createTestProjectOnDisk(Collections.emptyMap());
	startAndWaitForLspServer();

	TextDocumentPositionParams textDocumentPositionParams = new TextDocumentPositionParams();
	textDocumentPositionParams.setTextDocument(new TextDocumentIdentifier("n4scheme:/builtin_js.n4ts"));
	// see position from test above
	textDocumentPositionParams.setPosition(new Position(838, 15));
	CompletableFuture<Either<List<? extends Location>, List<? extends LocationLink>>> definitionsFuture = languageServer
			.definition(textDocumentPositionParams);
	Either<List<? extends Location>, List<? extends LocationLink>> definitions = definitionsFuture.get();

	File root = getRoot();
	String actualSignatureHelp = new StringLSP4J(root).toString4(definitions);
	assertEquals("(n4scheme:/builtin_js.n4ts, [838:15 - 838:21])", actualSignatureHelp.trim());
}
 

@Test
public void testHoverWithAttachedJavadoc() throws Exception {
	File commonPrimitivesJdoc = DependencyUtil.getJavadoc("commons-primitives", "commons-primitives", "1.0");
	assertNotNull("Unable to locate  commons-primitives-1.0-javadoc.jar", commonPrimitivesJdoc);

	importProjects("maven/attached-javadoc");
	project = WorkspaceHelper.getProject("attached-javadoc");
	handler = new HoverHandler(preferenceManager);
	//given
	//Hovers on org.apache.commons.collections.primitives.ShortCollections which has no source but an attached javadoc
	String payload = createHoverRequest("src/main/java/org/sample/Bar.java", 2, 56);
	TextDocumentPositionParams position = getParams(payload);

	// when
	Hover hover = handler.hover(position, monitor);
	assertNotNull("Hover is null", hover);
	assertEquals("Unexpected hover contents:\n" + hover.getContents(), 2, hover.getContents().getLeft().size());
	Either<String, MarkedString> javadoc = hover.getContents().getLeft().get(1);
	String content = null;
	assertTrue("javadoc has null content", javadoc != null && javadoc.getLeft() != null && (content = javadoc.getLeft()) != null);
	assertTrue("Unexpected hover :\n" + content, content.contains("This class consists exclusively of static methods that operate on or return ShortCollections"));
	assertTrue("Unexpected hover :\n" + content, content.contains("**Author:**"));
}