Add Appveyor builds and webdriver.io tests (tests cover Angular2Spa template only at present)

test/templates/util/yeoman.ts

@@ -0,0 +1,52 @@
+import * as childProcess from 'child_process';
+import * as path from 'path';
+import * as rimraf from 'rimraf';
+import * as mkdirp from 'mkdirp';
+
+const generatorDirRelative = '../templates/package-builder/dist/generator-aspnetcore-spa';
+const yoPackageDirAbsolute = path.resolve('./node_modules/yo');
+
+export interface GeneratorOptions {
+    framework: string;
+    name: string;
+    tests?: boolean;
+}
+
+export function generateProjectSync(targetDir: string, generatorOptions: GeneratorOptions) {
+    const generatorDirAbsolute = path.resolve(generatorDirRelative);
+    console.log(`Running NPM install to prepare Yeoman generator at ${ generatorDirAbsolute }`);
+    childProcess.execSync(`npm install`, { stdio: 'inherit', cwd: generatorDirAbsolute });
+
+    console.log(`Ensuring empty output directory at ${ targetDir }`);
+    rimraf.sync(targetDir);
+    mkdirp.sync(targetDir);
+
+    const yoExecutableAbsolute = findYeomanCliScript();
+    console.log(`Will invoke Yeoman at ${ yoExecutableAbsolute } to generate application in ${ targetDir } with options:`);
+    console.log(JSON.stringify(generatorOptions, null, 2));
+    const command = `node "${ yoExecutableAbsolute }" "${ path.resolve(generatorDirAbsolute, './app/index.js') }"`;
+    const args = makeYeomanCommandLineArgs(generatorOptions);
+    childProcess.execSync(`${ command } ${ args }`, {
+        stdio: 'inherit',
+        cwd: targetDir
+    });
+}
+
+function findYeomanCliScript() {
+    // On Windows, you can't invoke ./node_modules/.bin/yo from the shell for some reason.
+    // So instead, we'll locate the CLI entrypoint that yeoman would expose if it was installed globally.
+    const yeomanPackageJsonPath = path.join(yoPackageDirAbsolute, './package.json');
+    const yeomanPackageJson = require(yeomanPackageJsonPath);
+    const yeomanCliScriptRelative = yeomanPackageJson.bin.yo;
+    if (!yeomanCliScriptRelative) {
+        throw new Error(`Could not find Yeoman CLI script. Looked for a bin/yo entry in ${ yeomanPackageJsonPath }`);
+    }
+
+    return path.join(yoPackageDirAbsolute, yeomanCliScriptRelative);
+}
+
+function makeYeomanCommandLineArgs(generatorOptions: GeneratorOptions) {
+    return Object.getOwnPropertyNames(generatorOptions)
+        .map(key => `--${ key }="${ generatorOptions[key] }"`)
+        .join(' ');
+}