[tests][database] added 'child_added' test for issue #221 - thanks @TiraO

tests/ios/Podfile.lock

@@ -98,7 +98,7 @@ PODS:
   - React/cxxreact (0.44.3):
     - React/jschelpers
   - React/jschelpers (0.44.3)
-  - RNFirebase (1.1.2)
+  - RNFirebase (2.0.0)
   - Yoga (0.44.3.React)
 
 DEPENDENCIES:
@@ -143,7 +143,7 @@ SPEC CHECKSUMS:
   GTMSessionFetcher: 30d874b96d0d76028f61fbd122801e3f030d47db
   Protobuf: d582fecf68201eac3d79ed61369ef45734394b9c
   React: 6361345ebeb769a929e10a06baf0c868d6d03ad5
-  RNFirebase: 7310b8755cc32583f62f11e61b28f839046de5eb
+  RNFirebase: dcc4dcb1c9400a9bc01866e50d1351272a7df311
   Yoga: c90474ca3ec1edba44c97b6c381f03e222a9e287
 
 PODFILE CHECKSUM: 45666f734ebfc8b3b0f2be0a83bc2680caeb502f

tests/src/tests/database/ref/index.js

@@ -1,5 +1,6 @@
 import onTests from './on/onTests';
 import onValueTests from './on/onValueTests';
+import onChildAddedTests from './on/onChildAddedTests';
 import offTests from './offTests';
 import onceTests from './onceTests';
 import setTests from './setTests';
@@ -21,7 +22,7 @@ import DatabaseContents from '../../support/DatabaseContents';
 
 const testGroups = [
   issueSpecificTests, factoryTests, keyTests, parentTests, childTests, rootTests,
-  pushTests, onTests, onValueTests, offTests, onceTests, updateTests,
+  pushTests, onTests, onValueTests, onChildAddedTests, offTests, onceTests, updateTests,
   removeTests, setTests, transactionTests, queryTests, refTests, isEqualTests,
 ];
 

tests/src/tests/database/ref/on/onChildAddedTests.js

@@ -0,0 +1,36 @@
+import 'should-sinon';
+import Promise from 'bluebird';
+
+export default function onChildAddedTests({ describe, beforeEach, afterEach, it, firebase }) {
+  describe('ref().on(\'child_added\')', () => {
+    describe('the snapshot', () => {
+      let ref;
+      let childRef;
+      let childVal;
+      beforeEach(async () => {
+        ref = firebase.native.database().ref('tests/types/object');
+
+        await new Promise((resolve) => {
+          ref.on('child_added', (snapshot) => {
+            childRef = snapshot.ref;
+            childVal = snapshot.val();
+            resolve();
+          });
+        });
+      });
+
+      afterEach(() => {
+        ref.off();
+      });
+
+      // https://github.com/invertase/react-native-firebase/issues/221
+      it('has a key that identifies the child', () => {
+        (childRef.key).should.equal('foo');
+      });
+
+      it('has the value of the child', () => {
+        (childVal).should.equal('bar');
+      });
+    });
+  });
+}

tests/src/tests/database/ref/refTests.js

@@ -1,12 +1,10 @@
 function refTests({ describe, it, firebase }) {
   describe('ref().ref', () => {
-    it('returns a the reference itself', () => {
+    it('returns the reference', () => {
       // Setup
-
       const ref = firebase.native.database().ref();
 
       // Assertion
-
       ref.ref.should.eql(ref);
     });
   });