Conformance,

Regressions,

Test262

private basePath = 'tests/cases';

private errors: boolean;

private emit: boolean;

private decl: boolean;

private output: boolean;

public options: string;

constructor(public testType?: CompilerTestType) {

super();

this.errors = true;

this.emit = true;

this.decl = true;

this.output = true;

if (testType === CompilerTestType.Conformance) {

this.basePath += '/conformance';

}

else if (testType === CompilerTestType.Regressions) {

this.basePath += '/compiler';

}

else if (testType === CompilerTestType.Test262) {

this.basePath += '/test262';

} else {

this.basePath += '/compiler'; // default to this for historical reasons

}

}

public checkTestCodeOutput(fileName: string) {

describe('compiler tests for ' + fileName, () => {

// Mocha holds onto the closure environment of the describe callback even after the test is done.

// Everything declared here should be cleared out in the "after" callback.

var justName: string;

var content: string;

var testCaseContent: { settings: Harness.TestCaseParser.CompilerSetting[]; testUnitData: Harness.TestCaseParser.TestUnitData[]; }

var units: Harness.TestCaseParser.TestUnitData[];

var tcSettings: Harness.TestCaseParser.CompilerSetting[];

var createNewInstance: boolean;

var lastUnit: Harness.TestCaseParser.TestUnitData;

var rootDir: string;

var result: Harness.Compiler.CompilerResult;

var checker: ts.TypeChecker;

var options: ts.CompilerOptions;

// equivalent to the files that will be passed on the command line

var toBeCompiled: { unitName: string; content: string }[];

// equivalent to other files on the file system not directly passed to the compiler (ie things that are referenced by other files)

var otherFiles: { unitName: string; content: string }[];

var harnessCompiler: Harness.Compiler.HarnessCompiler;

var declFileCompilationResult: {

declInputFiles: { unitName: string; content: string }[];

declOtherFiles: { unitName: string; content: string }[];

declResult: Harness.Compiler.CompilerResult;

};

var createNewInstance = false;

before(() => {

justName = fileName.replace(/^.*[\\\/]/, ''); // strips the fileName from the path.

content = Harness.IO.readFile(fileName);

testCaseContent = Harness.TestCaseParser.makeUnitsFromTest(content, fileName);

units = testCaseContent.testUnitData;

tcSettings = testCaseContent.settings;

createNewInstance = false;

lastUnit = units[units.length - 1];

rootDir = lastUnit.originalFilePath.indexOf('conformance') === -1 ? 'tests/cases/compiler/' : lastUnit.originalFilePath.substring(0, lastUnit.originalFilePath.lastIndexOf('/')) + '/';

harnessCompiler = Harness.Compiler.getCompiler();

// We need to assemble the list of input files for the compiler and other related files on the 'filesystem' (ie in a multi-file test)

// If the last file in a test uses require or a triple slash reference we'll assume all other files will be brought in via references,

// otherwise, assume all files are just meant to be in the same compilation session without explicit references to one another.

toBeCompiled = [];

otherFiles = [];

if (/require\(/.test(lastUnit.content) || /reference\spath/.test(lastUnit.content)) {

toBeCompiled.push({ unitName: rootDir + lastUnit.name, content: lastUnit.content });

units.forEach(unit => {

if (unit.name !== lastUnit.name) {

otherFiles.push({ unitName: rootDir + unit.name, content: unit.content });

}

});

} else {

toBeCompiled = units.map(unit => {

return { unitName: rootDir + unit.name, content: unit.content };

});

}

options = harnessCompiler.compileFiles(toBeCompiled, otherFiles, function (compileResult, _checker) {

result = compileResult;

// The checker will be used by typeWriter

checker = _checker;

}, function (settings) {

harnessCompiler.setCompilerSettings(tcSettings);

});

});

beforeEach(() => {

/* The compiler doesn't handle certain flags flipping during a single compilation setting. Tests on these flags will need

for (var i = 0; i < tcSettings.length; ++i) {

// noImplicitAny is passed to getCompiler, but target is just passed in the settings blob to setCompilerSettings

if (!createNewInstance && (tcSettings[i].flag == "noimplicitany" || tcSettings[i].flag === 'target')) {

harnessCompiler = Harness.Compiler.getCompiler({

useExistingInstance: false,

optionsForFreshInstance: { useMinimalDefaultLib: true, noImplicitAny: tcSettings[i].flag === "noimplicitany" }

});

harnessCompiler.setCompilerSettings(tcSettings);

createNewInstance = true;

}

}

});

afterEach(() => {

if (createNewInstance) {

harnessCompiler = Harness.Compiler.getCompiler({

useExistingInstance: false,

optionsForFreshInstance: { useMinimalDefaultLib: true, noImplicitAny: false }

});

createNewInstance = false;

}

});

after(() => {

// Mocha holds onto the closure environment of the describe callback even after the test is done.

// Therefore we have to clean out large objects after the test is done.

justName = undefined;

content = undefined;

testCaseContent = undefined;

units = undefined;

tcSettings = undefined;

lastUnit = undefined;

rootDir = undefined;

result = undefined;

checker = undefined;

options = undefined;

toBeCompiled = undefined;

otherFiles = undefined;

harnessCompiler = undefined;

declFileCompilationResult = undefined;

});

function getByteOrderMarkText(file: Harness.Compiler.GeneratedFile): string {

return file.writeByteOrderMark ? "\u00EF\u00BB\u00BF" : "";

}

function getErrorBaseline(toBeCompiled: { unitName: string; content: string }[], otherFiles: { unitName: string; content: string }[], result: Harness.Compiler.CompilerResult) {

return Harness.Compiler.getErrorBaseline(toBeCompiled.concat(otherFiles), result.errors);

}

// check errors

it('Correct errors for ' + fileName, () => {

if (this.errors) {

Harness.Baseline.runBaseline('Correct errors for ' + fileName, justName.replace(/\.ts$/, '.errors.txt'), (): string => {

if (result.errors.length === 0) return null;

return getErrorBaseline(toBeCompiled, otherFiles, result);

});

}

});

// Source maps?

it('Correct sourcemap content for ' + fileName, () => {

if (options.sourceMap) {

Harness.Baseline.runBaseline('Correct sourcemap content for ' + fileName, justName.replace(/\.ts$/, '.sourcemap.txt'), () => {

return result.getSourceMapRecord();

});

}

});

// Compile .d.ts files

it('Correct compiler generated.d.ts for ' + fileName, () => {

declFileCompilationResult = harnessCompiler.compileDeclarationFiles(toBeCompiled, otherFiles, result, function (settings) {

harnessCompiler.setCompilerSettings(tcSettings);

}, options);

});

it('Correct JS output for ' + fileName, () => {

if (!ts.fileExtensionIs(lastUnit.name, '.d.ts') && this.emit) {

if (result.files.length === 0 && result.errors.length === 0) {

throw new Error('Expected at least one js file to be emitted or at least one error to be created.');

}

// check js output

Harness.Baseline.runBaseline('Correct JS output for ' + fileName, justName.replace(/\.ts/, '.js'), () => {

var tsCode = '';

var tsSources = otherFiles.concat(toBeCompiled);

if (tsSources.length > 1) {

tsCode += '//// [' + fileName + '] ////\r\n\r\n';

}

for (var i = 0; i < tsSources.length; i++) {

tsCode += '//// [' + Harness.Path.getFileName(tsSources[i].unitName) + ']\r\n';

tsCode += tsSources[i].content + (i < (tsSources.length - 1) ? '\r\n' : '');

}

var jsCode = '';

for (var i = 0; i < result.files.length; i++) {

jsCode += '//// [' + Harness.Path.getFileName(result.files[i].fileName) + ']\r\n';

jsCode += getByteOrderMarkText(result.files[i]);

jsCode += result.files[i].code;

// Re-enable this if we want to do another comparison of old vs new compiler baselines

// jsCode += SyntacticCleaner.clean(result.files[i].code);

}

if (result.declFilesCode.length > 0) {

jsCode += '\r\n\r\n';

for (var i = 0; i < result.declFilesCode.length; i++) {

jsCode += '//// [' + Harness.Path.getFileName(result.declFilesCode[i].fileName) + ']\r\n';

jsCode += getByteOrderMarkText(result.declFilesCode[i]);

jsCode += result.declFilesCode[i].code;

}

}

if (declFileCompilationResult && declFileCompilationResult.declResult.errors.length) {

jsCode += '\r\n\r\n//// [DtsFileErrors]\r\n';

jsCode += '\r\n\r\n';

jsCode += getErrorBaseline(declFileCompilationResult.declInputFiles, declFileCompilationResult.declOtherFiles, declFileCompilationResult.declResult);

}

if (jsCode.length > 0) {

return tsCode + '\r\n\r\n' + jsCode;

} else {

return null;

}

});

}

});

it('Correct Sourcemap output for ' + fileName, () => {

if (options.sourceMap) {

if (result.sourceMaps.length !== result.files.length) {

throw new Error('Number of sourcemap files should be same as js files.');

}

Harness.Baseline.runBaseline('Correct Sourcemap output for ' + fileName, justName.replace(/\.ts/, '.js.map'), () => {

var sourceMapCode = '';

for (var i = 0; i < result.sourceMaps.length; i++) {

sourceMapCode += '//// [' + Harness.Path.getFileName(result.sourceMaps[i].fileName) + ']\r\n';

sourceMapCode += getByteOrderMarkText(result.sourceMaps[i]);

sourceMapCode += result.sourceMaps[i].code;

}

return sourceMapCode;

});

}

});

it('Correct type baselines for ' + fileName, () => {

// NEWTODO: Type baselines

if (result.errors.length === 0) {

Harness.Baseline.runBaseline('Correct expression types for ' + fileName, justName.replace(/\.ts/, '.types'), () => {

var allFiles = toBeCompiled.concat(otherFiles).filter(file => !!checker.getProgram().getSourceFile(file.unitName));

var typeLines: string[] = [];

var typeMap: { [fileName: string]: { [lineNum: number]: string[]; } } = {};

var walker = new TypeWriterWalker(checker);

allFiles.forEach(file => {

var codeLines = file.content.split('\n');

walker.getTypes(file.unitName).forEach(result => {

var formattedLine = result.sourceText.replace(/\r?\n/g, "") + " : " + result.type;

if (!typeMap[file.unitName]) {

typeMap[file.unitName] = {};

}

var typeInfo = [formattedLine];

var existingTypeInfo = typeMap[file.unitName][result.line];

if (existingTypeInfo) {

typeInfo = existingTypeInfo.concat(typeInfo);

}

typeMap[file.unitName][result.line] = typeInfo;

});

typeLines.push('=== ' + file.unitName + ' ===\r\n');

for (var i = 0; i < codeLines.length; i++) {

var currentCodeLine = codeLines[i];

var lastLine = typeLines[typeLines.length];

typeLines.push(currentCodeLine + '\r\n');

if (typeMap[file.unitName]) {

var typeInfo = typeMap[file.unitName][i];

if (typeInfo) {

var leadingSpaces = '';

typeInfo.forEach(ty => {

typeLines.push('>' + ty + '\r\n');

});

if (i + 1 < codeLines.length && (codeLines[i + 1].match(/^\s*[{|}]\s*$/) || codeLines[i + 1].trim() === '')) {

} else {

typeLines.push('\r\n');

}

}

} else {

typeLines.push('No type information for this code.');

}

}

});

return typeLines.join('');

});

}

});

});

}

public initializeTests() {

describe("Setup compiler for compiler baselines", () => {

var harnessCompiler = Harness.Compiler.getCompiler({

useExistingInstance: false,

optionsForFreshInstance: { useMinimalDefaultLib: true, noImplicitAny: false }

});

this.parseOptions();

});

// this will set up a series of describe/it blocks to run between the setup and cleanup phases

if (this.tests.length === 0) {

var testFiles = this.enumerateFiles(this.basePath, /\.ts$/, { recursive: true });

testFiles.forEach(fn => {

fn = fn.replace(/\\/g, "/");

this.checkTestCodeOutput(fn);

});

}

else {

this.tests.forEach(test => this.checkTestCodeOutput(test));

}

describe("Cleanup after compiler baselines", () => {

var harnessCompiler = Harness.Compiler.getCompiler({

useExistingInstance: false,

optionsForFreshInstance: { useMinimalDefaultLib: true, noImplicitAny: false }

});

});

}

private parseOptions() {

if (this.options && this.options.length > 0) {

this.errors = false;

this.emit = false;

this.decl = false;

this.output = false;

var opts = this.options.split(',');

for (var i = 0; i < opts.length; i++) {

switch (opts[i]) {

case 'error':

this.errors = true;

break;

case 'emit':

this.emit = true;

break;

case 'decl':

this.decl = true;

break;

case 'output':

this.output = true;

break;

default:

throw new Error('unsupported flag');

}

}

}

}