[ServiceWorker] Tests for Cache

LayoutTests/http/tests/serviceworker/resources/cache-put-test-worker.js

+importScripts('worker-test-harness.js');
+
+var test_request = new Request('http://example.com/foo', {method: 'GET'});
+
+var test_response = new Response('Hello, world!', {
+    status: 200,
+    statusText: 'OK',
+    headers: [['Content-Type', 'text/plain']]
+  });
+
+var alternate_test_response = new Response('Goodbye, world!', {
+    status: 200,
+    statusText: 'OK',
+    headers: [['Content-Type', 'text/plain']]
+  });
+
+promise_test(function(t) {
+    return new Cache().put(test_request, test_response)
+      .then(t.step_func(function(result) {

[jsbell, 2014/08/15 20:49:35]

t.step_func should be unnecessary in promise_test (here and below)

[asanka, 2014/08/20 03:11:58]

Done.

+          assert_equals(result,
+                        test_response,
+                        'Cache.put should resolve with the response ' +
+                        'parameter.');
+        }));
+  }, 'Cache.put with a valid request');
+
+promise_test(function(t) {
+    var cache = new Cache();
+
+    return cache.put(test_request, test_response)
+      .then(function() {
+          return cache.put(test_request, alternate_test_response);
+        })
+      .then(t.step_func(function(result) {
+          assert_equals(result,
+                        alternate_test_response,
+                        'Cache.put should replace existing response with ' +

[jsbell, 2014/08/15 20:49:34]

Should this have an extra step that does a match() to verify the replacement?

[asanka, 2014/08/20 03:11:58]

Done.

+                        'new response.');
+        }));
+  }, 'Cache.put with an existing request');
+
+promise_test(function(t) {
+    return new Cache().put('http://example.com/cow-goes-moo', test_response)
+      .then(t.step_func(function(result) {
+          assert_equals(result, test_response,
+                        'Cache.put should accept a ScalarValueString as the ' +
+                        'request.');
+        }));
+  }, 'Cache.put with a request string');
+
+promise_test(function(t) {
+    return new Cache().put('invalid-scheme://should-accept', test_response)
+      .then(t.step_func(function(result) {
+          assert_equals(result, test_response,
+                        'Cache.put should accept a ScalarValueString as the ' +
+                        'request.');
+        }));
+  }, 'Cache.put with a request string');

[jsbell, 2014/08/15 20:49:34]

Add another case with a relative URL string?

[asanka, 2014/08/20 03:11:58]

Done.

+
+promise_test(function(t) {
+    var request = new Request('http://example.com/foo', {method: 'HEAD'});
+    return expect_promise_throws(
+      t,
+      new Cache().put(request, test_response),
+      'TypeError',
+      'Cache.put should throw a TypeError for non-GET requests.');
+  }, 'Cache.put with a non-GET request');
+
+promise_test(function(t) {
+    return expect_promise_throws(
+      t,
+      new Cache().put(test_request, null),
+      'TypeError',
+      'Cache.put should throw a TypeError for an empty response.');
+  }, 'Cache.put with an empty response');