WIP: add connection.test.ts

Author: jshcrowthe

tests/database/connection.test.ts

@@ -0,0 +1,48 @@
+import { expect } from "chai";
+import { ConnectionTarget } from "../../src/database/api/test_access";
+import { TEST_PROJECT } from "./helpers/util";
+import { Connection } from "../../src/database/realtime/Connection";
+
+describe('Connection', () => {
+  function testRepoInfo(url) {
+    const regex = /https:\/\/(.*).firebaseio.com/;
+    const match = url.match(regex);
+    if (!match) throw new Error('Couldnt get Namespace from passed URL');
+    const [,ns] = match;
+    return new ConnectionTarget(`${ns}.firebaseio.com`, false, ns, false);
+  }
+  it('return the session id', function(done) {
+    new Connection('1',
+        testRepoInfo(TEST_PROJECT.databaseURL),
+        message => {},
+        (timestamp, sessionId) => {
+          expect(sessionId).not.to.be.null;
+          expect(sessionId).not.to.equal('');
+          done();
+        },
+        () => {},
+        reason => {});
+  });
+
+  // TODO(koss) - Flakey Test.  When Dev Tools is closed on my Mac, this test
+  // fails about 20% of the time (open - it never fails).  In the failing
+  // case a long-poll is opened first.
+  // https://app.asana.com/0/58926111402292/101921715724749
+  it('disconnect old session on new connection', function(done) {
+    const info = testRepoInfo(TEST_PROJECT.databaseURL);
+    new Connection('1', info,
+        message => {},
+        (timestamp, sessionId) => {
+          new Connection('2', info,
+              message => {},
+              (timestamp, sessionId) => {},
+              () => {},
+              reason => {},
+              sessionId);
+        },
+        () => {
+          done(); // first connection was disconnected
+        },
+        reason => {});
+  });
+});