[ServiceWorker] Make Response class better conformance with the spec.

LayoutTests/http/tests/serviceworker/resources/response-worker.js

 importScripts('worker-test-helpers.js');
 
 test(function() {
-    var headers = new HeaderMap;
+    var response = new Response(new Blob());
+    assert_equals(response.type, 'default', 'Default Response.type should be \'default\'');
+    assert_equals(response.url, '', 'Response.url should not be set');

[falken, 2014/07/07 08:10:40]

maybe "should be the empty string"?

[horo, 2014/07/07 10:19:44]

Done.

+    assert_equals(response.status, 200, 'Default Response.status should be 200');
+    assert_equals(response.statusText, 'OK', 'Default Response.statusText should be \'OK\'');
+    assert_equals(response.headers.size, 0, 'Default Response.headers should be empty');
+
+    response.status = 394;
+    response.statusText = 'Sesame Street';
+    assert_equals(response.status, 200, 'Response.status should be readonly');
+    assert_equals(response.statusText, 'OK', 'Response.statusText should be readonly');
+}, 'Response default value test in ServiceWorkerGlobalScope');
+
+test(function() {
+    var headers = new Headers;
     headers.set('Content-Language', 'ja');
     headers.set('Content-Type', 'text/html; charset=UTF-8');
     headers.set('X-ServiceWorker-Test', 'response test field');
+    headers.set('Set-Cookie', 'response test set-cookie');
+    headers.set('Set-Cookie2', 'response test set-cookie2');
 
-    var response = new Response(new Blob(), {
-        status: 303,
-        statusText: 'See Other',
-        headers: headers
+    var responses =
+        [new Response(new Blob(),
+                      {status: 303, statusText: 'See Other', headers: headers}),
+         new Response(new Blob(),
+                      {
+                        status: 303,

[falken, 2014/07/07 08:10:40]

4 space indent

[horo, 2014/07/07 10:19:44]

Done.

+                        statusText: 'See Other',
+                        headers: {'Content-Language': 'ja',
+                                  'Content-Type': 'text/html; charset=UTF-8',
+                                  'X-ServiceWorker-Test': 'response test field',
+                                  'Set-Cookie': 'response test set-cookie',
+                                  'Set-Cookie2': 'response test set-cookie2'}
+                      }),
+         new Response(new Blob(),
+                      {
+                        status: 303,
+                        statusText: 'See Other',
+                        headers: [['Content-Language', 'ja'],
+                                  ['Content-Type', 'text/html; charset=UTF-8'],
+                                  ['X-ServiceWorker-Test', 'response test field'],
+                                  ['Set-Cookie', 'response test set-cookie'],
+                                  ['Set-Cookie2', 'response test set-cookie2']]
+                      })];
+    responses.forEach(function(response){

[falken, 2014/07/07 08:10:40]

space before {

[horo, 2014/07/07 10:19:44]

Done.

+        assert_equals(response.status, 303, 'Response.status should match');
+        assert_equals(response.statusText, 'See Other', 'Response.statusText should match');
+        assert_true(response.headers instanceof Headers, 'Response.headers should be Headers');
+        assert_equals(response.headers.size, 3, 'Response.headers.size should match');
+        assert_equals(response.headers.get('Content-Language'), 'ja',
+                      'Content-Language of Response.headers should match');
+        assert_equals(response.headers.get('Content-Type'), 'text/html; charset=UTF-8',
+                      'Content-Type of Response.headers should match');
+        assert_equals(response.headers.get('X-ServiceWorker-Test'), 'response test field',
+                      'X-ServiceWorker-Test of Response.headers should match');
+        response.headers.set('X-ServiceWorker-Test2', 'response test field2')
+        assert_equals(response.headers.size, 4, 'Response.headers.size should increase by 1.');
+        assert_equals(response.headers.get('X-ServiceWorker-Test2'), 'response test field2',
+                      'Response.headers should be added');
+        response.headers.set('set-cookie', 'dummy');
+        response.headers.set('sEt-cookie', 'dummy');
+        response.headers.set('set-cookie2', 'dummy');
+        response.headers.set('set-cOokie2', 'dummy');
+        response.headers.append('set-cookie', 'dummy');
+        response.headers.append('sEt-cookie', 'dummy');
+        response.headers.append('set-cookie2', 'dummy');
+        response.headers.append('set-cOokie2', 'dummy');
+        assert_equals(response.headers.size, 4,
+                      'Response.headers should not accept Set-Cookie nor Set-Cookie2');
+        response.headers.delete('X-ServiceWorker-Test');
+        assert_equals(response.headers.size, 3, 'Response.headers.size should decrease by 1.');
+    });
+    // Note: detailed behavioral tests for Headers are in another test,
+    // http/tests/serviceworker/headers.html.
+}, 'Response constructor test in ServiceWorkerGlobalScope');
+
+test(function() {
+    var response = new Response(new Blob(['dummy'], {type : 'audio/wav'}));

[falken, 2014/07/07 08:10:40]

no space before :

[horo, 2014/07/07 10:19:43]

Done.

+    assert_equals(response.headers.size, 1, 'Response.headers should have Content-Type');
+    assert_equals(response.headers.get('Content-Type'), 'audio/wav',
+                  'Content-Type of Response.headers should be set');
+
+    response = new Response(new Blob(['dummy'], {type : 'audio/wav'}),
+                            {headers:{'Content-Type': 'text/html; charset=UTF-8'}})
+    assert_equals(response.headers.size, 1, 'Response.headers should have Content-Type');
+    assert_equals(response.headers.get('Content-Type'), 'text/html; charset=UTF-8',
+                  'Content-Type of Response.headers should be overridden');
+}, 'Response content type test in ServiceWorkerGlobalScope');
+
+test(function() {
+    [0, 1, 100, 199, 600, 700].forEach(function(status) {
+        assert_throws({name:'RangeError'},
+                      function() { var response = new Response(new Blob(), {status: status}); },

[falken, 2014/07/07 08:10:40]

I suspect you don't need the "var response"

[horo, 2014/07/07 10:19:44]

Done.

+                      'new Response with status = ' + status + ' should throw');
+    });
+    [200, 300, 400, 500, 599].forEach(function(status) {
+        var response = new Response(new Blob(), {status: status});
+        assert_equals(response.status, status, 'Response.status should match');
     });
 
-    assert_equals(response.status, 303, 'Response.status should match');
-    assert_equals(response.statusText, 'See Other', 'Response.statusText should match');
-    assert_true(response.headers instanceof HeaderMap, 'Response.headers should be HeaderMap');
-    assert_equals(response.headers.size, 3, 'Response.headers.size should match');
-    // Note: detailed behavioral tests for HeaderMap are in another test,
-    // http/tests/serviceworker/headermap.html.
-
-    response.status = 123;
-    response.statusText = 'Sesame Street';
-    assert_equals(response.status, 123, 'Response.status should be writable');
-    assert_equals(response.statusText, 'Sesame Street', 'Response.statusText should be writable');
-
-    assert_throws({name:'TypeError'}, function() { response.statusText = 'invalid \u0100'; },
-                  'Response.statusText should throw on invalid ByteString');
-
-}, 'Response in ServiceWorkerGlobalScope');
+    var invalidNames = ['', '(', ')', '<', '>', '@', ',', ';', ':', '\\', '"',
+                        '/', '[', ']', '?', '=', '{', '}', '\u3042', 'a(b'];
+    invalidNames.forEach(function(name) {
+        assert_throws({name:'TypeError'},
+                      function() {
+                        var obj = {};

[falken, 2014/07/07 08:10:40]

4 space indent (here, and the ones below)

[horo, 2014/07/07 10:19:43]

Done.

+                        obj[name] = 'a';

[falken, 2014/07/07 08:10:40]

can this just be var obj = { name: 'a' }? or even just not use obj altogether:
  new Response(new Blob(), {headers: {name: 'a'}});

[horo, 2014/07/07 10:19:44]

No.
{name: 'a'}
means
obj['name'] = 'a';

[falken, 2014/07/08 03:56:24]

Ah, right.

+                        var response = new Response(new Blob(), {headers: obj});
+                      },
+                      'new Response with headers with an invalid name (' + name +') should throw');
+        assert_throws({name:'TypeError'},
+                      function() {
+                        var response = new Response(new Blob(), {headers: [[name, 'a']]});
+                      },
+                      'new Response with headers with an invalid name (' + name +') should throw');
+    });
+    var invalidValues = ['test \r data', 'test \n data'];
+    invalidValues.forEach(function(value) {
+        assert_throws({name:'TypeError'},
+                      function() {
+                        var response =

[falken, 2014/07/07 08:10:40]

seems like you can save room by removing the "var response"

[horo, 2014/07/07 10:19:44]

Done.

+                            new Response(new Blob(),
+                                         {headers: {'X-ServiceWorker-Test': value}});
+                      },
+                      'new Response with headers with an invalid value should throw');
+        assert_throws({name:'TypeError'},
+                      function() {
+                        var response =
+                            new Response(new Blob(),
+                                         {headers: [['X-ServiceWorker-Test', value]]});
+                      },
+                      'new Response with headers with an invalid value should throw');
+    });
+}, 'Response throw error test in ServiceWorkerGlobalScope');