[tests][config] added remote config tests

bridge/e2e/config/config.e2e.js

@@ -0,0 +1,94 @@
+describe.only('config()', () => {
+  before(() => {
+    firebase.config().enableDeveloperMode();
+    firebase.config().setDefaults({
+      foo: 'bar',
+      bar: 'baz',
+    });
+  });
+
+  describe('fetch()', () => {
+    it('with expiration provided', () => firebase.config().fetch(0));
+    it('without expiration provided', () => firebase.config().fetch());
+  });
+
+  describe('activateFetched()', () => {
+    it('with expiration provided', async () => {
+      await firebase.config().fetch(0);
+      const activated = await firebase.config().activateFetched();
+      activated.should.be.a.Boolean();
+    });
+
+    it('with expiration provided', async () => {
+      await firebase.config().fetch();
+      const activated = await firebase.config().activateFetched();
+      activated.should.be.a.Boolean();
+    });
+  });
+
+  describe('getValue()', () => {
+    it('gets a single value by key', async () => {
+      const config = await firebase.config().getValue('foo');
+      config.should.be.a.Object();
+      config.source.should.be.a.String();
+      config.val.should.be.a.Function();
+      config.val().should.be.equalOneOf('bar', true);
+    });
+
+    xit('errors if no key provided or is not a string', async () => {
+      // TODO needs input validation adding to lib
+    });
+  });
+
+  describe('getValues()', () => {
+    it('get multiple values by an array of keys', async () => {
+      const config = await firebase
+        .config()
+        .getValues(['foo', 'bar', 'foobar', 'numvalue']);
+      config.should.be.a.Object();
+      config.should.have.keys('foo', 'bar', 'foobar');
+      const fooValue = config.foo.val();
+      const barValue = config.bar.val();
+      const foobarValue = config.foobar.val();
+      const numvalueValue = config.numvalue.val();
+
+      fooValue.should.be.equal(true);
+      barValue.should.be.equal('baz');
+      foobarValue.should.be.equal('barbaz');
+      numvalueValue.should.be.equal(0);
+    });
+
+    xit('errors if any key is not a string', async () => {
+      // TODO needs input validation adding to lib
+    });
+  });
+
+  describe('getKeysByPrefix()', () => {
+    it('get keys beginning with the prefix provided', async () => {
+      const keys = await firebase.config().getKeysByPrefix('num');
+      keys.should.be.Array();
+      should.equal(keys.length, 2);
+    });
+
+    it('get all keys as an array if no prefix provided', async () => {
+      const keys = await firebase.config().getKeysByPrefix();
+      keys.should.be.Array();
+      should.equal(keys.length, 4);
+    });
+
+    xit('errors if prefix is not a string', async () => {
+      // TODO needs input validation adding to lib
+    });
+  });
+
+  describe('setDefaultsFromResource()', () => {
+    it('accepts a resource id/name to read defaults from', async () => {
+      firebase.config().setDefaultsFromResource();
+      // todo add plist/xml on ios/android to test
+    });
+
+    xit('errors if id not a integer for android or a string for ios', async () => {
+      // TODO needs input validation adding to lib
+    });
+  });
+});