test: add test-utils (#333)

apis/test-utils/src/__tests__/index.spec.js

@@ -0,0 +1,69 @@
+describe('test-utils', () => {
+  let sandbox;
+  let create;
+  let hook;
+  let hooked;
+
+  before(() => {
+    sandbox = sinon.createSandbox();
+
+    hooked = {
+      __hooked: true,
+      fn: sandbox.stub(),
+      initiate: sandbox.stub(),
+      run: sandbox.stub(),
+      teardown: sandbox.stub(),
+      runSnaps: sandbox.stub(),
+      observeActions: sandbox.stub(),
+      getImperativeHandle: sandbox.stub(),
+      updateRectOnNextRun: sandbox.stub(),
+    };
+    hook = sandbox.stub().returns(hooked);
+    [{ create }] = aw.mock([['@nebula.js/supernova', () => ({ hook })]], ['../index']);
+  });
+
+  afterEach(() => {
+    sandbox.restore();
+  });
+
+  it('should return api', () => {
+    const c = create();
+    expect(c.update).to.be.a('function');
+    expect(c.unmount).to.be.a('function');
+    expect(c.takeSnapshot).to.be.a('function');
+    expect(c.actions).to.be.a('function');
+  });
+
+  it('should update', () => {
+    const c = create();
+    c.update();
+    expect(hooked.run.callCount).to.equal(1);
+
+    hooked.run.reset();
+    const translator = {};
+    const context = { translator };
+    c.update(context);
+    expect(hooked.run).to.have.been.calledWithExactly(
+      sinon.match({
+        context,
+      })
+    );
+  });
+
+  it('should update', () => {
+    const c = create();
+    c.unmount();
+    expect(hooked.teardown.callCount).to.equal(1);
+  });
+
+  it('should take snapshot', () => {
+    const c = create();
+    c.takeSnapshot();
+    expect(hooked.runSnaps.callCount).to.equal(1);
+  });
+
+  it('should do actions', () => {
+    const c = create();
+    expect(c.actions()).to.have.length(0);
+  });
+});

aw.config.js

@@ -9,6 +9,7 @@ module.exports = {
       '**/__stories__/**',
       '**/apis/supernova/index.js',
       '**/apis/nucleus/index.js',
+      '**/apis/test-utils/index.js',
       '**/packages/ui/icons/**/*.js', // Exclude the defined icons but test the `<SvgIcon />`
     ],
   },