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/// <reference path="..\..\..\src\harness\external\mocha.d.ts" />
/// <reference path='..\..\..\src\harness\harness.ts' />
declare namespace chai.assert {
function deepEqual(actual: any, expected: any): void;
}
module ts {
interface File {
name: string
content?: string
}
function createModuleResolutionHost(...files: File[]): ModuleResolutionHost {
let map = arrayToMap(files, f => f.name);
return { fileExists, readFile };
function fileExists(path: string): boolean {
return hasProperty(map, path);
}
function readFile(path: string): string {
return hasProperty(map, path) ? map[path].content : undefined;
}
}
function splitPath(path: string): { dir: string; rel: string } {
let index = path.indexOf(directorySeparator);
return index === -1
? { dir: path, rel: undefined }
: { dir: path.substr(0, index), rel: path.substr(index + 1) };
}
describe("Node module resolution - relative paths", () => {
function testLoadAsFile(containingFileName: string, moduleFileNameNoExt: string, moduleName: string): void {
for (let ext of supportedExtensions) {
let containingFile = { name: containingFileName }
let moduleFile = { name: moduleFileNameNoExt + ext }
let resolution = nodeModuleNameResolver(moduleName, containingFile.name, createModuleResolutionHost(containingFile, moduleFile));
assert.equal(resolution.resolvedFileName, moduleFile.name);
let failedLookupLocations: string[] = [];
let dir = getDirectoryPath(containingFileName);
for (let e of supportedExtensions) {
if (e === ext) {
break;
}
else {
failedLookupLocations.push(normalizePath(getRootLength(moduleName) === 0 ? combinePaths(dir, moduleName) : moduleName) + e);
}
}
assert.deepEqual(resolution.failedLookupLocations, failedLookupLocations);
}
}
it("module name that starts with './' resolved as relative file name", () => {
testLoadAsFile("/foo/bar/baz.ts", "/foo/bar/foo", "./foo");
});
it("module name that starts with '../' resolved as relative file name", () => {
testLoadAsFile("/foo/bar/baz.ts", "/foo/foo", "../foo");
});
it("module name that starts with '/' script extension resolved as relative file name", () => {
testLoadAsFile("/foo/bar/baz.ts", "/foo", "/foo");
});
it("module name that starts with 'c:/' script extension resolved as relative file name", () => {
testLoadAsFile("c:/foo/bar/baz.ts", "c:/foo", "c:/foo");
});
function testLoadingFromPackageJson(containingFileName: string, packageJsonFileName: string, fieldRef: string, moduleFileName: string, moduleName: string): void {
let containingFile = { name: containingFileName };
let packageJson = { name: packageJsonFileName, content: JSON.stringify({ "typings": fieldRef }) };
let moduleFile = { name: moduleFileName };
let resolution = nodeModuleNameResolver(moduleName, containingFile.name, createModuleResolutionHost(containingFile, packageJson, moduleFile));
assert.equal(resolution.resolvedFileName, moduleFile.name);
// expect three failed lookup location - attempt to load module as file with all supported extensions
assert.equal(resolution.failedLookupLocations.length, 3);
}
it("module name as directory - load from typings", () => {
testLoadingFromPackageJson("/a/b/c/d.ts", "/a/b/c/bar/package.json", "c/d/e.d.ts", "/a/b/c/bar/c/d/e.d.ts", "./bar");
testLoadingFromPackageJson("/a/b/c/d.ts", "/a/bar/package.json", "e.d.ts", "/a/bar/e.d.ts", "../../bar");
testLoadingFromPackageJson("/a/b/c/d.ts", "/bar/package.json", "e.d.ts", "/bar/e.d.ts", "/bar");
testLoadingFromPackageJson("c:/a/b/c/d.ts", "c:/bar/package.json", "e.d.ts", "c:/bar/e.d.ts", "c:/bar");
});
it ("module name as directory - load index.d.ts", () => {
let containingFile = {name: "/a/b/c.ts"};
let packageJson = {name: "/a/b/foo/package.json", content: JSON.stringify({main: "/c/d"})};
let indexFile = { name: "/a/b/foo/index.d.ts" };
let resolution = nodeModuleNameResolver("./foo", containingFile.name, createModuleResolutionHost(containingFile, packageJson, indexFile));
assert.equal(resolution.resolvedFileName, indexFile.name);
assert.deepEqual(resolution.failedLookupLocations, [
"/a/b/foo.ts",
"/a/b/foo.tsx",
"/a/b/foo.d.ts",
"/a/b/foo/index.ts",
"/a/b/foo/index.tsx",
]);
});
});
describe("Node module resolution - non-relative paths", () => {
it("load module as file - ts files not loaded", () => {
let containingFile = { name: "/a/b/c/d/e.ts" };
let moduleFile = { name: "/a/b/node_modules/foo.ts" };
let resolution = nodeModuleNameResolver("foo", containingFile.name, createModuleResolutionHost(containingFile, moduleFile));
assert.equal(resolution.resolvedFileName, undefined);
assert.deepEqual(resolution.failedLookupLocations, [
"/a/b/c/d/node_modules/foo.d.ts",
"/a/b/c/d/node_modules/foo/package.json",
"/a/b/c/d/node_modules/foo/index.d.ts",
"/a/b/c/node_modules/foo.d.ts",
"/a/b/c/node_modules/foo/package.json",
"/a/b/c/node_modules/foo/index.d.ts",
"/a/b/node_modules/foo.d.ts",
"/a/b/node_modules/foo/package.json",
"/a/b/node_modules/foo/index.d.ts",
"/a/node_modules/foo.d.ts",
"/a/node_modules/foo/package.json",
"/a/node_modules/foo/index.d.ts",
"/node_modules/foo.d.ts",
"/node_modules/foo/package.json",
"/node_modules/foo/index.d.ts"
])
});
it("load module as file", () => {
let containingFile = { name: "/a/b/c/d/e.ts" };
let moduleFile = { name: "/a/b/node_modules/foo.d.ts" };
let resolution = nodeModuleNameResolver("foo", containingFile.name, createModuleResolutionHost(containingFile, moduleFile));
assert.equal(resolution.resolvedFileName, moduleFile.name);
});
it("load module as directory", () => {
let containingFile = { name: "/a/node_modules/b/c/node_modules/d/e.ts" };
let moduleFile = { name: "/a/node_modules/foo/index.d.ts" };
let resolution = nodeModuleNameResolver("foo", containingFile.name, createModuleResolutionHost(containingFile, moduleFile));
assert.equal(resolution.resolvedFileName, moduleFile.name);
assert.deepEqual(resolution.failedLookupLocations, [
"/a/node_modules/b/c/node_modules/d/node_modules/foo.d.ts",
"/a/node_modules/b/c/node_modules/d/node_modules/foo/package.json",
"/a/node_modules/b/c/node_modules/d/node_modules/foo/index.d.ts",
"/a/node_modules/b/c/node_modules/foo.d.ts",
"/a/node_modules/b/c/node_modules/foo/package.json",
"/a/node_modules/b/c/node_modules/foo/index.d.ts",
"/a/node_modules/b/node_modules/foo.d.ts",
"/a/node_modules/b/node_modules/foo/package.json",
"/a/node_modules/b/node_modules/foo/index.d.ts",
"/a/node_modules/foo.d.ts",
"/a/node_modules/foo/package.json"
]);
});
});
describe("BaseUrl mode", () => {
it ("load module as relative url", () => {
function test(containingFileName: string, moduleFileName: string, moduleName: string): void {
let containingFile = {name: containingFileName };
let moduleFile = { name: moduleFileName };
let resolution = baseUrlModuleNameResolver(moduleName, containingFile.name, "<some-value>", createModuleResolutionHost(containingFile, moduleFile));
assert.equal(resolution.resolvedFileName, moduleFile.name);
let expectedFailedLookupLocations: string[] = [];
let moduleNameHasExt = forEach(supportedExtensions, e => fileExtensionIs(moduleName, e));
if (!moduleNameHasExt) {
let dir = getDirectoryPath(containingFileName);
// add candidates with extensions that precede extension of the actual module name file in the list of supportd extensions
for (let ext of supportedExtensions) {
let hasExtension = ext !== ".ts"
? fileExtensionIs(moduleFileName, ext)
: fileExtensionIs(moduleFileName, ".ts") && !fileExtensionIs(moduleFileName, ".d.ts");
if (hasExtension) {
break;
}
else {
expectedFailedLookupLocations.push(normalizePath(combinePaths(dir, moduleName + ext)));
}
}
}
assert.deepEqual(resolution.failedLookupLocations, expectedFailedLookupLocations)
}
test("/a/b/c/d.ts", "/foo.ts", "/foo");
test("/a/b/c/d.ts", "/foo.d.ts", "/foo");
test("/a/b/c/d.ts", "/foo.tsx", "/foo");
test("/a/b/c/d.ts", "/a/b/c/foo.ts", "./foo");
test("/a/b/c/d.ts", "/a/b/c/foo.d.ts", "./foo");
test("/a/b/c/d.ts", "/a/b/c/foo.tsx", "./foo");
test("/a/b/c/d.ts", "/a/b/foo.ts", "../foo");
test("/a/b/c/d.ts", "/a/b/foo.d.ts", "../foo");
test("/a/b/c/d.ts", "/a/b/foo.tsx", "../foo");
});
it ("load module using base url", () => {
function test(containingFileName: string, moduleFileName: string, moduleName: string, baseUrl: string): void {
let containingFile = { name: containingFileName };
let moduleFile = { name: moduleFileName };
let resolution = baseUrlModuleNameResolver(moduleName, containingFileName, baseUrl, createModuleResolutionHost(containingFile, moduleFile));
assert.equal(resolution.resolvedFileName, moduleFile.name);
}
test("/a/base/c/d.ts", "/a/base/c/d/e.ts", "c/d/e", "/a/base");
test("/a/base/c/d.ts", "/a/base/c/d/e.d.ts", "c/d/e", "/a/base");
test("/a/base/c/d.ts", "/a/base/c/d/e.tsx", "c/d/e", "/a/base");
});
});
}