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fourslash.ts
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3912 lines (3245 loc) · 178 KB
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//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
/// <reference path="..\services\services.ts" />
/// <reference path="..\services\shims.ts" />
/// <reference path="harnessLanguageService.ts" />
/// <reference path="harness.ts" />
/// <reference path="fourslashRunner.ts" />
namespace FourSlash {
ts.disableIncrementalParsing = false;
// Represents a parsed source file with metadata
export interface FourSlashFile {
// The contents of the file (with markers, etc stripped out)
content: string;
fileName: string;
version: number;
// File-specific options (name/value pairs)
fileOptions: Harness.TestCaseParser.CompilerSettings;
}
// Represents a set of parsed source files and options
export interface FourSlashData {
// Global options (name/value pairs)
globalOptions: Harness.TestCaseParser.CompilerSettings;
files: FourSlashFile[];
// A mapping from marker names to name/position pairs
markerPositions: ts.Map<Marker>;
markers: Marker[];
/**
* Inserted in source files by surrounding desired text
* in a range with `[|` and `|]`. For example,
*
* [|text in range|]
*
* is a range with `text in range` "selected".
*/
ranges: Range[];
}
export interface Marker {
fileName: string;
position: number;
data?: any;
}
export interface Range {
fileName: string;
start: number;
end: number;
marker?: Marker;
}
interface LocationInformation {
position: number;
sourcePosition: number;
sourceLine: number;
sourceColumn: number;
}
interface RangeLocationInformation extends LocationInformation {
marker?: Marker;
}
interface ImplementationLocationInformation extends ts.ImplementationLocation {
matched?: boolean;
}
export interface TextSpan {
start: number;
end: number;
}
export import IndentStyle = ts.IndentStyle;
const entityMap = ts.createMapFromTemplate({
"&": "&",
"\"": """,
"'": "'",
"/": "/",
"<": "<",
">": ">"
});
export function escapeXmlAttributeValue(s: string) {
return s.replace(/[&<>"'\/]/g, ch => entityMap.get(ch));
}
// Name of testcase metadata including ts.CompilerOptions properties that will be used by globalOptions
// To add additional option, add property into the testOptMetadataNames, refer the property in either globalMetadataNames or fileMetadataNames
// Add cases into convertGlobalOptionsToCompilationsSettings function for the compiler to acknowledge such option from meta data
const metadataOptionNames = {
baselineFile: "BaselineFile",
emitThisFile: "emitThisFile", // This flag is used for testing getEmitOutput feature. It allows test-cases to indicate what file to be output in multiple files project
fileName: "Filename",
resolveReference: "ResolveReference", // This flag is used to specify entry file for resolve file references. The flag is only allow once per test file
};
// List of allowed metadata names
const fileMetadataNames = [metadataOptionNames.fileName, metadataOptionNames.emitThisFile, metadataOptionNames.resolveReference];
function convertGlobalOptionsToCompilerOptions(globalOptions: Harness.TestCaseParser.CompilerSettings): ts.CompilerOptions {
const settings: ts.CompilerOptions = { target: ts.ScriptTarget.ES5 };
Harness.Compiler.setCompilerOptionsFromHarnessSetting(globalOptions, settings);
return settings;
}
export class TestCancellationToken implements ts.HostCancellationToken {
// 0 - cancelled
// >0 - not cancelled
// <0 - not cancelled and value denotes number of isCancellationRequested after which token become cancelled
private static NotCanceled: number = -1;
private numberOfCallsBeforeCancellation: number = TestCancellationToken.NotCanceled;
public isCancellationRequested(): boolean {
if (this.numberOfCallsBeforeCancellation < 0) {
return false;
}
if (this.numberOfCallsBeforeCancellation > 0) {
this.numberOfCallsBeforeCancellation--;
return false;
}
return true;
}
public setCancelled(numberOfCalls = 0): void {
ts.Debug.assert(numberOfCalls >= 0);
this.numberOfCallsBeforeCancellation = numberOfCalls;
}
public resetCancelled(): void {
this.numberOfCallsBeforeCancellation = TestCancellationToken.NotCanceled;
}
}
export function verifyOperationIsCancelled(f: () => void) {
try {
f();
}
catch (e) {
if (e instanceof ts.OperationCanceledException) {
return;
}
}
throw new Error("Operation should be cancelled");
}
// This function creates IScriptSnapshot object for testing getPreProcessedFileInfo
// Return object may lack some functionalities for other purposes.
function createScriptSnapShot(sourceText: string): ts.IScriptSnapshot {
return {
getText: (start: number, end: number) => sourceText.substr(start, end - start),
getLength: () => sourceText.length,
getChangeRange: () => undefined
};
}
export class TestState {
// Language service instance
private languageServiceAdapterHost: Harness.LanguageService.LanguageServiceAdapterHost;
private languageService: ts.LanguageService;
private cancellationToken: TestCancellationToken;
// The current caret position in the active file
public currentCaretPosition = 0;
public lastKnownMarker = "";
// The file that's currently 'opened'
public activeFile: FourSlashFile;
// Whether or not we should format on keystrokes
public enableFormatting = true;
public formatCodeSettings: ts.FormatCodeSettings;
private inputFiles = ts.createMap<string>(); // Map between inputFile's fileName and its content for easily looking up when resolving references
private static getDisplayPartsJson(displayParts: ts.SymbolDisplayPart[]) {
let result = "";
ts.forEach(displayParts, part => {
if (result) {
result += ",\n ";
}
else {
result = "[\n ";
}
result += JSON.stringify(part);
});
if (result) {
result += "\n]";
}
return result;
}
// Add input file which has matched file name with the given reference-file path.
// This is necessary when resolveReference flag is specified
private addMatchedInputFile(referenceFilePath: string, extensions: string[]) {
const inputFiles = this.inputFiles;
const languageServiceAdapterHost = this.languageServiceAdapterHost;
if (!extensions) {
tryAdd(referenceFilePath);
}
else {
tryAdd(referenceFilePath) || ts.forEach(extensions, ext => tryAdd(referenceFilePath + ext));
}
function tryAdd(path: string) {
const inputFile = inputFiles.get(path);
if (inputFile && !Harness.isDefaultLibraryFile(path)) {
languageServiceAdapterHost.addScript(path, inputFile, /*isRootFile*/ true);
return true;
}
}
}
private getLanguageServiceAdapter(testType: FourSlashTestType, cancellationToken: TestCancellationToken, compilationOptions: ts.CompilerOptions): Harness.LanguageService.LanguageServiceAdapter {
switch (testType) {
case FourSlashTestType.Native:
return new Harness.LanguageService.NativeLanguageServiceAdapter(cancellationToken, compilationOptions);
case FourSlashTestType.Shims:
return new Harness.LanguageService.ShimLanguageServiceAdapter(/*preprocessToResolve*/ false, cancellationToken, compilationOptions);
case FourSlashTestType.ShimsWithPreprocess:
return new Harness.LanguageService.ShimLanguageServiceAdapter(/*preprocessToResolve*/ true, cancellationToken, compilationOptions);
case FourSlashTestType.Server:
return new Harness.LanguageService.ServerLanguageServiceAdapter(cancellationToken, compilationOptions);
default:
throw new Error("Unknown FourSlash test type: ");
}
}
constructor(private basePath: string, private testType: FourSlashTestType, public testData: FourSlashData) {
// Create a new Services Adapter
this.cancellationToken = new TestCancellationToken();
let compilationOptions = convertGlobalOptionsToCompilerOptions(this.testData.globalOptions);
compilationOptions.skipDefaultLibCheck = true;
// Initialize the language service with all the scripts
let startResolveFileRef: FourSlashFile;
let configFileName: string;
ts.forEach(testData.files, file => {
// Create map between fileName and its content for easily looking up when resolveReference flag is specified
this.inputFiles.set(file.fileName, file.content);
if (ts.getBaseFileName(file.fileName).toLowerCase() === "tsconfig.json") {
const configJson = ts.parseConfigFileTextToJson(file.fileName, file.content);
if (configJson.config === undefined) {
throw new Error(`Failed to parse test tsconfig.json: ${configJson.error.messageText}`);
}
// Extend our existing compiler options so that we can also support tsconfig only options
if (configJson.config.compilerOptions) {
const baseDirectory = ts.normalizePath(ts.getDirectoryPath(file.fileName));
const tsConfig = ts.convertCompilerOptionsFromJson(configJson.config.compilerOptions, baseDirectory, file.fileName);
if (!tsConfig.errors || !tsConfig.errors.length) {
compilationOptions = ts.extend(compilationOptions, tsConfig.options);
}
}
configFileName = file.fileName;
}
if (!startResolveFileRef && file.fileOptions[metadataOptionNames.resolveReference] === "true") {
startResolveFileRef = file;
}
else if (startResolveFileRef) {
// If entry point for resolving file references is already specified, report duplication error
throw new Error("There exists a Fourslash file which has resolveReference flag specified; remove duplicated resolveReference flag");
}
});
if (configFileName) {
const baseDir = ts.normalizePath(ts.getDirectoryPath(configFileName));
const host = new Utils.MockParseConfigHost(baseDir, /*ignoreCase*/ false, this.inputFiles);
const configJsonObj = ts.parseConfigFileTextToJson(configFileName, this.inputFiles.get(configFileName));
assert.isTrue(configJsonObj.config !== undefined);
const { options, errors } = ts.parseJsonConfigFileContent(configJsonObj.config, host, baseDir);
// Extend our existing compiler options so that we can also support tsconfig only options
if (!errors || errors.length === 0) {
compilationOptions = ts.extend(compilationOptions, options);
}
}
if (compilationOptions.typeRoots) {
compilationOptions.typeRoots = compilationOptions.typeRoots.map(p => ts.getNormalizedAbsolutePath(p, this.basePath));
}
const languageServiceAdapter = this.getLanguageServiceAdapter(testType, this.cancellationToken, compilationOptions);
this.languageServiceAdapterHost = languageServiceAdapter.getHost();
this.languageService = languageServiceAdapter.getLanguageService();
if (startResolveFileRef) {
// Add the entry-point file itself into the languageServiceShimHost
this.languageServiceAdapterHost.addScript(startResolveFileRef.fileName, startResolveFileRef.content, /*isRootFile*/ true);
const resolvedResult = languageServiceAdapter.getPreProcessedFileInfo(startResolveFileRef.fileName, startResolveFileRef.content);
const referencedFiles: ts.FileReference[] = resolvedResult.referencedFiles;
const importedFiles: ts.FileReference[] = resolvedResult.importedFiles;
// Add triple reference files into language-service host
ts.forEach(referencedFiles, referenceFile => {
// Fourslash insert tests/cases/fourslash into inputFile.unitName so we will properly append the same base directory to refFile path
const referenceFilePath = this.basePath + "/" + referenceFile.fileName;
this.addMatchedInputFile(referenceFilePath, /* extensions */ undefined);
});
// Add import files into language-service host
ts.forEach(importedFiles, importedFile => {
// Fourslash insert tests/cases/fourslash into inputFile.unitName and import statement doesn't require ".ts"
// so convert them before making appropriate comparison
const importedFilePath = this.basePath + "/" + importedFile.fileName;
this.addMatchedInputFile(importedFilePath, ts.getSupportedExtensions(compilationOptions));
});
// Check if no-default-lib flag is false and if so add default library
if (!resolvedResult.isLibFile) {
this.languageServiceAdapterHost.addScript(Harness.Compiler.defaultLibFileName,
Harness.Compiler.getDefaultLibrarySourceFile().text, /*isRootFile*/ false);
}
}
else {
// resolveReference file-option is not specified then do not resolve any files and include all inputFiles
this.inputFiles.forEach((file, fileName) => {
if (!Harness.isDefaultLibraryFile(fileName)) {
this.languageServiceAdapterHost.addScript(fileName, file, /*isRootFile*/ true);
}
});
this.languageServiceAdapterHost.addScript(Harness.Compiler.defaultLibFileName,
Harness.Compiler.getDefaultLibrarySourceFile().text, /*isRootFile*/ false);
}
this.formatCodeSettings = {
baseIndentSize: 0,
indentSize: 4,
tabSize: 4,
newLineCharacter: Harness.IO.newLine(),
convertTabsToSpaces: true,
indentStyle: ts.IndentStyle.Smart,
insertSpaceAfterCommaDelimiter: true,
insertSpaceAfterSemicolonInForStatements: true,
insertSpaceBeforeAndAfterBinaryOperators: true,
insertSpaceAfterConstructor: false,
insertSpaceAfterKeywordsInControlFlowStatements: true,
insertSpaceAfterFunctionKeywordForAnonymousFunctions: false,
insertSpaceAfterOpeningAndBeforeClosingNonemptyParenthesis: false,
insertSpaceAfterOpeningAndBeforeClosingNonemptyBrackets: false,
insertSpaceAfterOpeningAndBeforeClosingNonemptyBraces: true,
insertSpaceAfterOpeningAndBeforeClosingTemplateStringBraces: false,
insertSpaceAfterOpeningAndBeforeClosingJsxExpressionBraces: false,
insertSpaceAfterTypeAssertion: false,
placeOpenBraceOnNewLineForFunctions: false,
placeOpenBraceOnNewLineForControlBlocks: false,
};
// Open the first file by default
this.openFile(0);
}
private getFileContent(fileName: string): string {
const script = this.languageServiceAdapterHost.getScriptInfo(fileName);
return script.content;
}
// Entry points from fourslash.ts
public goToMarker(name: string | Marker = "") {
const marker = typeof name === "string" ? this.getMarkerByName(name) : name;
if (this.activeFile.fileName !== marker.fileName) {
this.openFile(marker.fileName);
}
const content = this.getFileContent(marker.fileName);
if (marker.position === -1 || marker.position > content.length) {
throw new Error(`Marker "${name}" has been invalidated by unrecoverable edits to the file.`);
}
const mName = typeof name === "string" ? name : this.markerName(marker);
this.lastKnownMarker = mName;
this.goToPosition(marker.position);
}
public goToEachMarker(action: () => void) {
const markers = this.getMarkers();
assert(markers.length);
for (const marker of markers) {
this.goToMarker(marker);
action();
}
}
public goToEachRange(action: () => void) {
const ranges = this.getRanges();
assert(ranges.length);
for (const range of ranges) {
this.goToRangeStart(range);
action();
}
}
private markerName(m: Marker): string {
return ts.forEachEntry(this.testData.markerPositions, (marker, name) => {
if (marker === m) {
return name;
}
})!;
}
public goToPosition(pos: number) {
this.currentCaretPosition = pos;
}
public moveCaretRight(count = 1) {
this.currentCaretPosition += count;
this.currentCaretPosition = Math.min(this.currentCaretPosition, this.getFileContent(this.activeFile.fileName).length);
}
// Opens a file given its 0-based index or fileName
public openFile(index: number, content?: string, scriptKindName?: string): void;
public openFile(name: string, content?: string, scriptKindName?: string): void;
public openFile(indexOrName: any, content?: string, scriptKindName?: string) {
const fileToOpen: FourSlashFile = this.findFile(indexOrName);
fileToOpen.fileName = ts.normalizeSlashes(fileToOpen.fileName);
this.activeFile = fileToOpen;
// Let the host know that this file is now open
this.languageServiceAdapterHost.openFile(fileToOpen.fileName, content, scriptKindName);
}
public verifyErrorExistsBetweenMarkers(startMarkerName: string, endMarkerName: string, negative: boolean) {
const startMarker = this.getMarkerByName(startMarkerName);
const endMarker = this.getMarkerByName(endMarkerName);
const predicate = (errorMinChar: number, errorLimChar: number, startPos: number, endPos: number) =>
((errorMinChar === startPos) && (errorLimChar === endPos)) ? true : false;
const exists = this.anyErrorInRange(predicate, startMarker, endMarker);
if (exists !== negative) {
this.printErrorLog(negative, this.getAllDiagnostics());
throw new Error(`Failure between markers: '${startMarkerName}', '${endMarkerName}'`);
}
}
private raiseError(message: string) {
throw new Error(this.messageAtLastKnownMarker(message));
}
private messageAtLastKnownMarker(message: string) {
const locationDescription = this.lastKnownMarker ? this.lastKnownMarker : this.getLineColStringAtPosition(this.currentCaretPosition);
return `At ${locationDescription}: ${message}`;
}
private assertionMessageAtLastKnownMarker(msg: string) {
return "\nMarker: " + this.lastKnownMarker + "\nChecking: " + msg + "\n\n";
}
private getDiagnostics(fileName: string): ts.Diagnostic[] {
const syntacticErrors = this.languageService.getSyntacticDiagnostics(fileName);
const semanticErrors = this.languageService.getSemanticDiagnostics(fileName);
const diagnostics: ts.Diagnostic[] = [];
diagnostics.push.apply(diagnostics, syntacticErrors);
diagnostics.push.apply(diagnostics, semanticErrors);
return diagnostics;
}
private getAllDiagnostics(): ts.Diagnostic[] {
const diagnostics: ts.Diagnostic[] = [];
for (const fileName of this.languageServiceAdapterHost.getFilenames()) {
diagnostics.push.apply(this.getDiagnostics(fileName));
}
return diagnostics;
}
public verifyErrorExistsAfterMarker(markerName: string, negative: boolean, after: boolean) {
const marker: Marker = this.getMarkerByName(markerName);
let predicate: (errorMinChar: number, errorLimChar: number, startPos: number, endPos: number) => boolean;
if (after) {
predicate = (errorMinChar: number, errorLimChar: number, startPos: number) =>
((errorMinChar >= startPos) && (errorLimChar >= startPos)) ? true : false;
}
else {
predicate = (errorMinChar: number, errorLimChar: number, startPos: number) =>
((errorMinChar <= startPos) && (errorLimChar <= startPos)) ? true : false;
}
const exists = this.anyErrorInRange(predicate, marker);
const diagnostics = this.getAllDiagnostics();
if (exists !== negative) {
this.printErrorLog(negative, diagnostics);
throw new Error("Failure at marker: " + markerName);
}
}
private anyErrorInRange(predicate: (errorMinChar: number, errorLimChar: number, startPos: number, endPos: number) => boolean, startMarker: Marker, endMarker?: Marker) {
const errors = this.getDiagnostics(startMarker.fileName);
let exists = false;
const startPos = startMarker.position;
let endPos: number = undefined;
if (endMarker !== undefined) {
endPos = endMarker.position;
}
errors.forEach(function (error: ts.Diagnostic) {
if (predicate(error.start, error.start + error.length, startPos, endPos)) {
exists = true;
}
});
return exists;
}
private printErrorLog(expectErrors: boolean, errors: ts.Diagnostic[]) {
if (expectErrors) {
Harness.IO.log("Expected error not found. Error list is:");
}
else {
Harness.IO.log("Unexpected error(s) found. Error list is:");
}
errors.forEach(function (error: ts.Diagnostic) {
Harness.IO.log(" minChar: " + error.start +
", limChar: " + (error.start + error.length) +
", message: " + ts.flattenDiagnosticMessageText(error.messageText, Harness.IO.newLine()) + "\n");
});
}
public verifyNumberOfErrorsInCurrentFile(expected: number) {
const errors = this.getDiagnostics(this.activeFile.fileName);
const actual = errors.length;
if (actual !== expected) {
this.printErrorLog(/*expectErrors*/ false, errors);
const errorMsg = "Actual number of errors (" + actual + ") does not match expected number (" + expected + ")";
Harness.IO.log(errorMsg);
this.raiseError(errorMsg);
}
}
public verifyEval(expr: string, value: any) {
const emit = this.languageService.getEmitOutput(this.activeFile.fileName);
if (emit.outputFiles.length !== 1) {
throw new Error("Expected exactly one output from emit of " + this.activeFile.fileName);
}
const evaluation = new Function(`${emit.outputFiles[0].text};\r\nreturn (${expr});`)();
if (evaluation !== value) {
this.raiseError(`Expected evaluation of expression "${expr}" to equal "${value}", but got "${evaluation}"`);
}
}
public verifyGoToDefinitionIs(endMarker: string | string[]) {
this.verifyGoToXWorker(toArray(endMarker), () => this.getGoToDefinition());
}
public verifyGoToDefinition(arg0: any, endMarkerNames?: string | string[]) {
this.verifyGoToX(arg0, endMarkerNames, () => this.getGoToDefinition());
}
private getGoToDefinition(): ts.DefinitionInfo[] {
return this.languageService.getDefinitionAtPosition(this.activeFile.fileName, this.currentCaretPosition)
}
public verifyGoToType(arg0: any, endMarkerNames?: string | string[]) {
this.verifyGoToX(arg0, endMarkerNames, () =>
this.languageService.getTypeDefinitionAtPosition(this.activeFile.fileName, this.currentCaretPosition));
}
private verifyGoToX(arg0: any, endMarkerNames: string | string[] | undefined, getDefs: () => ts.DefinitionInfo[] | undefined) {
if (endMarkerNames) {
this.verifyGoToXPlain(arg0, endMarkerNames, getDefs);
}
else if (ts.isArray(arg0)) {
const pairs: [string | string[], string | string[]][] = arg0;
for (const [start, end] of pairs) {
this.verifyGoToXPlain(start, end, getDefs);
}
}
else {
const obj: { [startMarkerName: string]: string | string[] } = arg0;
for (const startMarkerName in obj) {
if (ts.hasProperty(obj, startMarkerName)) {
this.verifyGoToXPlain(startMarkerName, obj[startMarkerName], getDefs);
}
}
}
}
private verifyGoToXPlain(startMarkerNames: string | string[], endMarkerNames: string | string[], getDefs: () => ts.DefinitionInfo[] | undefined) {
for (const start of toArray(startMarkerNames)) {
this.verifyGoToXSingle(start, endMarkerNames, getDefs);
}
}
public verifyGoToDefinitionForMarkers(markerNames: string[]) {
for (const markerName of markerNames) {
this.verifyGoToXSingle(`${markerName}Reference`, `${markerName}Definition`, () => this.getGoToDefinition());
}
}
private verifyGoToXSingle(startMarkerName: string, endMarkerNames: string | string[], getDefs: () => ts.DefinitionInfo[] | undefined) {
this.goToMarker(startMarkerName);
this.verifyGoToXWorker(toArray(endMarkerNames), getDefs);
}
private verifyGoToXWorker(endMarkers: string[], getDefs: () => ts.DefinitionInfo[] | undefined) {
const definitions = getDefs() || [];
if (endMarkers.length !== definitions.length) {
this.raiseError(`goToDefinitions failed - expected to find ${endMarkers.length} definitions but got ${definitions.length}`);
}
ts.zipWith(endMarkers, definitions, (endMarker, definition, i) => {
const marker = this.getMarkerByName(endMarker);
if (marker.fileName !== definition.fileName || marker.position !== definition.textSpan.start) {
this.raiseError(`goToDefinition failed for definition ${i}: expected ${marker.fileName} at ${marker.position}, got ${definition.fileName} at ${definition.textSpan.start}`);
}
});
}
public verifyGetEmitOutputForCurrentFile(expected: string): void {
const emit = this.languageService.getEmitOutput(this.activeFile.fileName);
if (emit.outputFiles.length !== 1) {
throw new Error("Expected exactly one output from emit of " + this.activeFile.fileName);
}
const actual = emit.outputFiles[0].text;
if (actual !== expected) {
this.raiseError(`Expected emit output to be "${expected}", but got "${actual}"`);
}
}
public verifyGetEmitOutputContentsForCurrentFile(expected: ts.OutputFile[]): void {
const emit = this.languageService.getEmitOutput(this.activeFile.fileName);
assert.equal(emit.outputFiles.length, expected.length, "Number of emit output files");
ts.zipWith(emit.outputFiles, expected, (outputFile, expected) => {
assert.equal(outputFile.name, expected.name, "FileName");
assert.equal(outputFile.text, expected.text, "Content");
});
}
public verifyCompletionListCount(expectedCount: number, negative: boolean) {
if (expectedCount === 0 && negative) {
this.verifyCompletionListIsEmpty(/*negative*/ false);
return;
}
const members = this.getCompletionListAtCaret();
if (members) {
const match = members.entries.length === expectedCount;
if ((!match && !negative) || (match && negative)) {
this.raiseError("Member list count was " + members.entries.length + ". Expected " + expectedCount);
}
}
else if (expectedCount) {
this.raiseError("Member list count was 0. Expected " + expectedCount);
}
}
public verifyCompletionListItemsCountIsGreaterThan(count: number, negative: boolean) {
const completions = this.getCompletionListAtCaret();
const itemsCount = completions.entries.length;
if (negative) {
if (itemsCount > count) {
this.raiseError(`Expected completion list items count to not be greater than ${count}, but is actually ${itemsCount}`);
}
}
else {
if (itemsCount <= count) {
this.raiseError(`Expected completion list items count to be greater than ${count}, but is actually ${itemsCount}`);
}
}
}
public verifyCompletionListStartsWithItemsInOrder(items: string[]): void {
if (items.length === 0) {
return;
}
const entries = this.getCompletionListAtCaret().entries;
assert.isTrue(items.length <= entries.length, `Amount of expected items in completion list [ ${items.length} ] is greater than actual number of items in list [ ${entries.length} ]`);
ts.zipWith(entries, items, (entry, item) => {
assert.equal(entry.name, item, `Unexpected item in completion list`);
});
}
public noItemsWithSameNameButDifferentKind(): void {
const completions = this.getCompletionListAtCaret();
const uniqueItems = ts.createMap<string>();
for (const item of completions.entries) {
const uniqueItem = uniqueItems.get(item.name);
if (!uniqueItem) {
uniqueItems.set(item.name, item.kind);
}
else {
assert.equal(item.kind, uniqueItem, `Items should have the same kind, got ${item.kind} and ${uniqueItem}`);
}
}
}
public verifyCompletionListIsEmpty(negative: boolean) {
const completions = this.getCompletionListAtCaret();
if ((!completions || completions.entries.length === 0) && negative) {
this.raiseError("Completion list is empty at caret at position " + this.activeFile.fileName + " " + this.currentCaretPosition);
}
else if (completions && completions.entries.length !== 0 && !negative) {
this.raiseError(`Completion list is not empty at caret at position ${this.activeFile.fileName} ${this.currentCaretPosition}\n` +
`Completion List contains: ${stringify(completions.entries.map(e => e.name))}`);
}
}
public verifyCompletionListAllowsNewIdentifier(negative: boolean) {
const completions = this.getCompletionListAtCaret();
if ((completions && !completions.isNewIdentifierLocation) && !negative) {
this.raiseError("Expected builder completion entry");
}
else if ((completions && completions.isNewIdentifierLocation) && negative) {
this.raiseError("Un-expected builder completion entry");
}
}
public verifyCompletionListIsGlobal(expected: boolean) {
const completions = this.getCompletionListAtCaret();
if (completions && completions.isGlobalCompletion !== expected) {
this.raiseError(`verifyCompletionListIsGlobal failed - expected result to be ${completions.isGlobalCompletion}`);
}
}
public verifyCompletionsAt(markerName: string, expected: string[]) {
this.goToMarker(markerName);
const actualCompletions = this.getCompletionListAtCaret();
if (!actualCompletions) {
this.raiseError(`No completions at position '${this.currentCaretPosition}'.`);
}
const actual = actualCompletions.entries;
if (actual.length !== expected.length) {
this.raiseError(`Expected ${expected.length} completions, got ${actual.map(a => a.name)}.`);
}
ts.zipWith(actual, expected, (completion, expectedCompletion, index) => {
if (completion.name !== expectedCompletion) {
this.raiseError(`Expected completion at index ${index} to be ${expectedCompletion}, got ${completion.name}`);
}
});
}
public verifyCompletionListContains(symbol: string, text?: string, documentation?: string, kind?: string, spanIndex?: number) {
const completions = this.getCompletionListAtCaret();
if (completions) {
this.assertItemInCompletionList(completions.entries, symbol, text, documentation, kind, spanIndex);
}
else {
this.raiseError(`No completions at position '${this.currentCaretPosition}' when looking for '${symbol}'.`);
}
}
/**
* Verify that the completion list does NOT contain the given symbol.
* The symbol is considered matched with the symbol in the list if and only if all given parameters must matched.
* When any parameter is omitted, the parameter is ignored during comparison and assumed that the parameter with
* that property of the symbol in the list.
* @param symbol the name of symbol
* @param expectedText the text associated with the symbol
* @param expectedDocumentation the documentation text associated with the symbol
* @param expectedKind the kind of symbol (see ScriptElementKind)
* @param spanIndex the index of the range that the completion item's replacement text span should match
*/
public verifyCompletionListDoesNotContain(symbol: string, expectedText?: string, expectedDocumentation?: string, expectedKind?: string, spanIndex?: number) {
const that = this;
let replacementSpan: ts.TextSpan;
if (spanIndex !== undefined) {
replacementSpan = this.getTextSpanForRangeAtIndex(spanIndex);
}
function filterByTextOrDocumentation(entry: ts.CompletionEntry) {
const details = that.getCompletionEntryDetails(entry.name);
const documentation = ts.displayPartsToString(details.documentation);
const text = ts.displayPartsToString(details.displayParts);
// If any of the expected values are undefined, assume that users don't
// care about them.
if (replacementSpan && !TestState.textSpansEqual(replacementSpan, entry.replacementSpan)) {
return false;
}
else if (expectedText && text !== expectedText) {
return false;
}
else if (expectedDocumentation && documentation !== expectedDocumentation) {
return false;
}
return true;
}
const completions = this.getCompletionListAtCaret();
if (completions) {
let filterCompletions = completions.entries.filter(e => e.name === symbol);
filterCompletions = expectedKind ? filterCompletions.filter(e => e.kind === expectedKind) : filterCompletions;
filterCompletions = filterCompletions.filter(filterByTextOrDocumentation);
if (filterCompletions.length !== 0) {
// After filtered using all present criterion, if there are still symbol left in the list
// then these symbols must meet the criterion for Not supposed to be in the list. So we
// raise an error
let error = "Completion list did contain \'" + symbol + "\'.";
const details = this.getCompletionEntryDetails(filterCompletions[0].name);
if (expectedText) {
error += "Expected text: " + expectedText + " to equal: " + ts.displayPartsToString(details.displayParts) + ".";
}
if (expectedDocumentation) {
error += "Expected documentation: " + expectedDocumentation + " to equal: " + ts.displayPartsToString(details.documentation) + ".";
}
if (expectedKind) {
error += "Expected kind: " + expectedKind + " to equal: " + filterCompletions[0].kind + ".";
}
if (replacementSpan) {
const spanText = filterCompletions[0].replacementSpan ? stringify(filterCompletions[0].replacementSpan) : undefined;
error += "Expected replacement span: " + stringify(replacementSpan) + " to equal: " + spanText + ".";
}
this.raiseError(error);
}
}
}
public verifyCompletionEntryDetails(entryName: string, expectedText: string, expectedDocumentation?: string, kind?: string) {
const details = this.getCompletionEntryDetails(entryName);
assert(details, "no completion entry available");
assert.equal(ts.displayPartsToString(details.displayParts), expectedText, this.assertionMessageAtLastKnownMarker("completion entry details text"));
if (expectedDocumentation !== undefined) {
assert.equal(ts.displayPartsToString(details.documentation), expectedDocumentation, this.assertionMessageAtLastKnownMarker("completion entry documentation"));
}
if (kind !== undefined) {
assert.equal(details.kind, kind, this.assertionMessageAtLastKnownMarker("completion entry kind"));
}
}
public verifyReferencesAre(expectedReferences: Range[]) {
const actualReferences = this.getReferencesAtCaret() || [];
if (actualReferences.length > expectedReferences.length) {
// Find the unaccounted-for reference.
for (const actual of actualReferences) {
if (!ts.forEach(expectedReferences, r => r.start === actual.textSpan.start)) {
this.raiseError(`A reference ${stringify(actual)} is unaccounted for.`);
}
}
// Probably will never reach here.
this.raiseError(`There are ${actualReferences.length} references but only ${expectedReferences.length} were expected.`);
}
for (const reference of expectedReferences) {
const {fileName, start, end} = reference;
if (reference.marker && reference.marker.data) {
const {isWriteAccess, isDefinition} = reference.marker.data;
this.verifyReferencesWorker(actualReferences, fileName, start, end, isWriteAccess, isDefinition);
}
else {
this.verifyReferencesWorker(actualReferences, fileName, start, end);
}
}
}
public verifyReferencesOf(range: Range, references: Range[]) {
this.goToRangeStart(range);
this.verifyReferencesAre(references);
}
public verifyRangesReferenceEachOther(ranges?: Range[]) {
ranges = ranges || this.getRanges();
assert(ranges.length);
for (const range of ranges) {
this.verifyReferencesOf(range, ranges);
}
}
public verifyReferenceGroups(startRanges: Range | Range[], parts: Array<{ definition: string, ranges: Range[] }>): void {
interface ReferenceJson { definition: string; ranges: ts.ReferenceEntry[]; }
type ReferencesJson = ReferenceJson[];
const fullExpected = parts.map<ReferenceJson>(({ definition, ranges }) => ({ definition, ranges: ranges.map(rangeToReferenceEntry) }));
for (const startRange of toArray(startRanges)) {
this.goToRangeStart(startRange);
const fullActual = this.findReferencesAtCaret().map<ReferenceJson>(({ definition, references }) => ({
definition: definition.displayParts.map(d => d.text).join(""),
ranges: references
}));
this.assertObjectsEqual<ReferencesJson>(fullActual, fullExpected);
}
function rangeToReferenceEntry(r: Range) {
let { isWriteAccess, isDefinition } = (r.marker && r.marker.data) || { isWriteAccess: false, isDefinition: false };
isWriteAccess = !!isWriteAccess; isDefinition = !!isDefinition;
return { fileName: r.fileName, textSpan: { start: r.start, length: r.end - r.start }, isWriteAccess, isDefinition }
}
}
public verifyNoReferences(markerNameOrRange?: string | Range) {
if (markerNameOrRange) {
if (typeof markerNameOrRange === "string") {
this.goToMarker(markerNameOrRange);
}
else {
this.goToRangeStart(markerNameOrRange);
}
}
const refs = this.getReferencesAtCaret();
if (refs && refs.length) {
console.log(refs);
this.raiseError("Expected getReferences to fail");
}
}
public verifySingleReferenceGroup(definition: string, ranges?: Range[]) {
ranges = ranges || this.getRanges();
this.verifyReferenceGroups(ranges, [{ definition, ranges }]);
}
private assertObjectsEqual<T>(fullActual: T, fullExpected: T, msgPrefix = ""): void {
const recur = <U>(actual: U, expected: U, path: string) => {
const fail = (msg: string) => {
console.log("Expected:", stringify(fullExpected));
console.log("Actual: ", stringify(fullActual));
this.raiseError(`${msgPrefix}At ${path}: ${msg}`);
};
for (const key in actual) if (ts.hasProperty(actual as any, key)) {
const ak = actual[key], ek = expected[key];
if (typeof ak === "object" && typeof ek === "object") {
recur(ak, ek, path ? path + "." + key : key);
}
else if (ak !== ek) {
fail(`Expected '${key}' to be '${ek}', got '${ak}'`);
}
}
for (const key in expected) if (ts.hasProperty(expected as any, key)) {
if (!ts.hasProperty(actual as any, key)) {
fail(`${msgPrefix}Missing property '${key}'`);
}
}
};
recur(fullActual, fullExpected, "");
}
public verifyDisplayPartsOfReferencedSymbol(expected: ts.SymbolDisplayPart[]) {
const referencedSymbols = this.findReferencesAtCaret();
if (referencedSymbols.length === 0) {
this.raiseError("No referenced symbols found at current caret position");
}
else if (referencedSymbols.length > 1) {
this.raiseError("More than one referenced symbol found");
}
assert.equal(TestState.getDisplayPartsJson(referencedSymbols[0].definition.displayParts),
TestState.getDisplayPartsJson(expected), this.messageAtLastKnownMarker("referenced symbol definition display parts"));
}
private verifyReferencesWorker(references: ts.ReferenceEntry[], fileName: string, start: number, end: number, isWriteAccess?: boolean, isDefinition?: boolean) {
for (const reference of references) {
if (reference && reference.fileName === fileName && reference.textSpan.start === start && ts.textSpanEnd(reference.textSpan) === end) {
if (typeof isWriteAccess !== "undefined" && reference.isWriteAccess !== isWriteAccess) {
this.raiseError(`verifyReferencesAtPositionListContains failed - item isWriteAccess value does not match, actual: ${reference.isWriteAccess}, expected: ${isWriteAccess}.`);