Add unit tests for shell-completion

test/bin/shell-completion.spec.js

@@ -0,0 +1,44 @@
+const assert = require('chai').assert;
+
+describe('shell-completion', () => {
+
+  it('should supply --XXX options if initial dash is provided', () => {
+
+    // expect
+    return assertShellComplete('-',
+        '--help',
+        '--shell-completion',
+        '--supported-actions',
+        '--version');
+
+  });
+
+  it('should supply http... option if entering second word', () => {
+
+    // expect
+    return assertShellComplete(['some-project', ''],
+        'http\\://',
+        'https\\://');
+  });
+
+});
+
+const execSync = require('child_process').execSync;
+
+function assertShellComplete(cliArgs, ...expectedResponses) {
+  if(!Array.isArray(cliArgs)) cliArgs = [ cliArgs ];
+
+  return execPromise('bin/shell-completion.js', cliArgs.length, ...cliArgs)
+    .then(res => res.split(/\s/))
+    .then(res => res.filter(s => s.trim()))
+    .then(res => assert.deepEqual(res, expectedResponses));
+}
+
+function execPromise(...args) {
+  try {
+    var buf = execSync(args.join(' '));
+    return Promise.resolve(buf.toString());
+  } catch(e) {
+    return Promise.reject(e);
+  }
+}