Start of foreign fetch implementation.

third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/register-foreign-fetch-errors-worker.js

Index: third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/register-foreign-fetch-errors-worker.js
diff --git a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/register-foreign-fetch-errors-worker.js b/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/register-foreign-fetch-errors-worker.js
new file mode 100644
index 0000000000000000000000000000000000000000..70dd95133cde8606d18f15a932bd591dffc6fed1
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/register-foreign-fetch-errors-worker.js
@@ -0,0 +1,67 @@
+
+self.addEventListener('install', function(event) {
+    var scope = registration.scope;
+    var scopeUrl = new URL(scope);
+
+    test(function() {
+        assert_throws(new TypeError(), function() {
+            event.registerForeignFetchScopes(scope);
+        });
+    }, 'Not an array');
+
+    test(function() {
+        assert_throws(new TypeError(), function() {
+            event.registerForeignFetchScopes([{}]);
+        });
+    }, 'Not a string in array');
+
+    test(function() {
+        assert_throws(new TypeError(), function() {
+            event.registerForeignFetchScopes(["/foo"]);
+        });
+    }, "Relative url not under scope");
+
+    test(function() {
+        var url = new URL(scopeUrl);
+        url.host = "example.com";
+        assert_throws(new TypeError(), function() {
+            event.registerForeignFetchScopes([url.href]);
+        });
+    }, 'Absolute url not under scope');
+
+    async_test(function(t) {
+        self.setTimeout(t.step_func(function() {
+            assert_throws('InvalidStateError', function() {
+                event.registerForeignFetchScopes([scope]);
+            });
+            t.done();
+        }), 1);
+    }, 'Call after event returned');
+
+    test(function() {
+        event.registerForeignFetchScopes([]);
+    }, 'Empty array');
+
+    test(function() {
+        event.registerForeignFetchScopes([scope, scope + '/foo']);
+    }, 'Absolute urls');
+
+    test(function() {
+        // Figure out scope relative to location of this script:
+        var localDir = location.pathname;
+        localDir = localDir.substr(0, localDir.lastIndexOf('/'));
+        assert_true(scopeUrl.pathname.startsWith(localDir));
+        var relativeScope = scopeUrl.pathname.substr(localDir.length + 1);
+
+        event.registerForeignFetchScopes([
+            scopeUrl.pathname,
+            relativeScope,
+            './' + relativeScope,
+            relativeScope + '/foo']);
+    }, "Relative urls");
+
+});
+
+// Import testharness after install handler to make sure our install handler
+// runs first.
+importScripts('../../resources/testharness.js');