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114 lines
3.6 KiB
JavaScript
114 lines
3.6 KiB
JavaScript
const fs = require("fs");
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function readJsonFile(path) {
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// TypeScript puts lots of comments in the default `tsconfig.json`, so you
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// can’t use `require()` to read it. Hence this hack.
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return eval("(" + fs.readFileSync(path).toString("utf-8") + ")");
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}
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const typeScriptConfig = readJsonFile("./tsconfig.json");
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const babel = readJsonFile("./.babelrc");
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module.exports = function(config) {
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const options = {
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// base path that will be used to resolve all patterns (eg. files, exclude)
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basePath: "",
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// frameworks to use
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// available frameworks: https://npmjs.org/browse/keyword/karma-adapter
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frameworks: ["mocha", "chai", "karma-typescript"],
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// list of files / patterns to load in the browser
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files: [
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{
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pattern: "test/**/*.ts",
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type: "module"
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},
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{
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pattern: "src/**/*.ts",
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included: false
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}
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],
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// list of files / patterns to exclude
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exclude: [],
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// preprocess matching files before serving them to the browser // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
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preprocessors: {
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"src/**/*.ts": ["karma-typescript", "babel"],
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"test/**/*.ts": ["karma-typescript", "babel"]
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},
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babelPreprocessor: {
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options: babel
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},
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karmaTypescriptConfig: {
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// Inline `tsconfig.json` so that the right TS libs are loaded
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...typeScriptConfig,
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// Coverage is a thing that karma-typescript forces on you and only
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// creates problems. This is the simplest way of disabling it that I
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// could find.
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coverageOptions: {
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exclude: /.*/
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}
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},
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mime: {
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// Default mimetype for .ts files is video/mp2t but we need
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// text/javascript for modules to work.
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"text/javascript": ["ts"]
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},
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plugins: [
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// Load all modules whose name starts with "karma" (usually the default).
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"karma-*",
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// We don’t have file extensions on our imports as they are primarily
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// consumed by webpack. With Karma, however, this turns into a real HTTP
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// request for a non-existent file. This inline plugin is a middleware
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// that appends `.ts` to the request URL.
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{
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"middleware:redirect_to_ts": [
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"value",
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(req, res, next) => {
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if (req.url.startsWith("/base/src")) {
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req.url += '.ts';
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}
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next();
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}
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]
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}
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],
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// Run our middleware before all other middlewares.
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beforeMiddleware: ["redirect_to_ts"],
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// test results reporter to use
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// possible values: 'dots', 'progress'
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// available reporters: https://npmjs.org/browse/keyword/karma-reporter
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reporters: ["progress"],
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// web server port
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port: 9876,
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// enable / disable colors in the output (reporters and logs)
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colors: true,
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// level of logging
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// possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
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logLevel: config.LOG_INFO,
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// enable / disable watching file and executing tests whenever any file changes
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autoWatch: false,
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// start these browsers
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// available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
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browsers: ["ChromeHeadless"],
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// Continuous Integration mode
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// if true, Karma captures browsers, runs the tests and exits
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singleRun: true,
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// These custom files allow us to use ES6 modules in our tests.
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// Remove these 2 lines (and files) once https://github.com/karma-runner/karma/pull/2834 lands.
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customContextFile: "test/context.html",
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customDebugFile: "test/debug.html"
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};
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config.set(options);
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};
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