1 files changed, 179 insertions, 0 deletions
diff --git a/test/service/httpBackendSpec.js b/test/service/httpBackendSpec.js
new file mode 100644
index 00000000..e609eea6
--- /dev/null
+++ b/test/service/httpBackendSpec.js
@@ -0,0 +1,179 @@
+describe('$httpBackend', function() {
+
+  var $backend, $browser, $window,
+      xhr, fakeBody, callback;
+
+  // TODO(vojta): should be replaced by $defer mock
+  function fakeTimeout(fn, delay) {
+    fakeTimeout.fns.push(fn);
+    fakeTimeout.delays.push(delay);
+  }
+
+  fakeTimeout.fns = [];
+  fakeTimeout.delays = [];
+  fakeTimeout.flush = function() {
+    var len = fakeTimeout.fns.length;
+    fakeTimeout.delays = [];
+    while (len--) fakeTimeout.fns.shift()();
+  };
+
+
+  beforeEach(inject(function($injector) {
+    $window = {};
+    $browser = $injector.get('$browser');
+    fakeBody = {removeChild: jasmine.createSpy('body.removeChild')};
+    $backend = createHttpBackend($browser, MockXhr, fakeTimeout, $window, fakeBody);
+    callback = jasmine.createSpy('done');
+  }));
+
+
+  it('should do basics - open async xhr and send data', function() {
+    $backend('GET', '/some-url', 'some-data', noop);
+    xhr = MockXhr.$$lastInstance;
+
+    expect(xhr.$$method).toBe('GET');
+    expect(xhr.$$url).toBe('/some-url');
+    expect(xhr.$$data).toBe('some-data');
+    expect(xhr.$$async).toBe(true);
+  });
+
+
+  it('should normalize IE\'s 1223 status code into 204', function() {
+    callback.andCallFake(function(status) {
+      expect(status).toBe(204);
+    });
+
+    $backend('GET', 'URL', null, callback);
+    xhr = MockXhr.$$lastInstance;
+
+    xhr.status = 1223;
+    xhr.readyState = 4;
+    xhr.onreadystatechange();
+
+    expect(callback).toHaveBeenCalledOnce();
+  });
+
+
+  it('should set only the requested headers', function() {
+    $backend('POST', 'URL', null, noop, {'X-header1': 'value1', 'X-header2': 'value2'});
+    xhr = MockXhr.$$lastInstance;
+
+    expect(xhr.$$headers).toEqual({
+      'X-header1': 'value1',
+      'X-header2': 'value2'
+    });
+  });
+
+
+  it('should return raw xhr object', function() {
+    expect($backend('GET', '/url', null, noop)).toBe(MockXhr.$$lastInstance);
+  });
+
+
+  it('should abort request on timeout', function() {
+    callback.andCallFake(function(status, response) {
+      expect(status).toBe(-1);
+    });
+
+    $backend('GET', '/url', null, callback, {}, 2000);
+    xhr = MockXhr.$$lastInstance;
+    spyOn(xhr, 'abort');
+
+    expect(fakeTimeout.delays[0]).toBe(2000);
+
+    fakeTimeout.flush();
+    expect(xhr.abort).toHaveBeenCalledOnce();
+
+    xhr.status = 0;
+    xhr.readyState = 4;
+    xhr.onreadystatechange();
+    expect(callback).toHaveBeenCalledOnce();
+  });
+
+
+  it('should be async even if xhr.send() is sync', function() {
+    // IE6, IE7 is sync when serving from cache
+    function SyncXhr() {
+      xhr = this;
+      this.open = this.setRequestHeader = noop;
+      this.send = function() {
+        this.status = 200;
+        this.responseText = 'response';
+        this.readyState = 4;
+      };
+    }
+
+    callback.andCallFake(function(status, response) {
+      expect(status).toBe(200);
+      expect(response).toBe('response');
+    });
+
+    $backend = createHttpBackend($browser, SyncXhr, fakeTimeout);
+    $backend('GET', '/url', null, callback);
+    expect(callback).not.toHaveBeenCalled();
+
+    fakeTimeout.flush();
+    expect(callback).toHaveBeenCalledOnce();
+
+    (xhr.onreadystatechange || noop)();
+    expect(callback).toHaveBeenCalledOnce();
+  });
+
+
+  describe('JSONP', function() {
+
+    it('should add script tag for JSONP request', function() {
+      callback.andCallFake(function(status, response) {
+        expect(status).toBe(200);
+        expect(response).toBe('some-data');
+      });
+
+      $backend('JSONP', 'http://example.org/path?cb=JSON_CALLBACK', null, callback);
+      expect($browser.$$scripts.length).toBe(1);
+
+      var script = $browser.$$scripts.shift(),
+          url = script.url.split('?cb=');
+
+      expect(url[0]).toBe('http://example.org/path');
+      $window[url[1]]('some-data');
+      script.done();
+
+      expect(callback).toHaveBeenCalledOnce();
+    });
+
+
+    it('should clean up the callback and remove the script', function() {
+      $backend('JSONP', 'http://example.org/path?cb=JSON_CALLBACK', null, callback);
+      expect($browser.$$scripts.length).toBe(1);
+
+      var script = $browser.$$scripts.shift(),
+          callbackId = script.url.split('?cb=')[1];
+
+      $window[callbackId]('some-data');
+      script.done();
+
+      expect($window[callbackId]).toBeUndefined();
+      expect(fakeBody.removeChild).toHaveBeenCalledOnce();
+      expect(fakeBody.removeChild).toHaveBeenCalledWith(script);
+    });
+
+
+    it('should call callback with status -2 when script fails to load', function() {
+      callback.andCallFake(function(status, response) {
+        expect(status).toBe(-2);
+        expect(response).toBeUndefined();
+      });
+
+      $backend('JSONP', 'http://example.org/path?cb=JSON_CALLBACK', null, callback);
+      expect($browser.$$scripts.length).toBe(1);
+
+      $browser.$$scripts.shift().done();
+      expect(callback).toHaveBeenCalledOnce();
+    });
+
+
+    // TODO(vojta): test whether it fires "async-start"
+    // TODO(vojta): test whether it fires "async-end" on both success and error
+  });
+});
+