1 files changed, 132 insertions, 0 deletions
diff --git a/dom/cache/test/mochitest/test_cache_delete.js b/dom/cache/test/mochitest/test_cache_delete.js
new file mode 100644
index 0000000000..3f1324493a
--- /dev/null
+++ b/dom/cache/test/mochitest/test_cache_delete.js
@@ -0,0 +1,132 @@
+/* global context testDone:true */
+
+var name = "delete" + context;
+
+function setupTest(reqs) {
+  return new Promise(function(resolve, reject) {
+    var cache;
+    caches
+      .open(name)
+      .then(function(c) {
+        cache = c;
+        return c.addAll(reqs);
+      })
+      .then(function() {
+        resolve(cache);
+      })
+      .catch(function(err) {
+        reject(err);
+      });
+  });
+}
+
+function testBasics() {
+  var tests = [
+    "//mochi.test:8888/?foo" + context,
+    "//mochi.test:8888/?bar" + context,
+  ];
+  var cache;
+  return setupTest(tests)
+    .then(function(c) {
+      cache = c;
+      return cache.delete("//mochi.test:8888/?baz");
+    })
+    .then(function(deleted) {
+      ok(!deleted, "Deleting a non-existing entry should fail");
+      return cache.keys();
+    })
+    .then(function(keys) {
+      is(keys.length, 2, "No entries from the cache should be deleted");
+      return cache.delete(tests[0]);
+    })
+    .then(function(deleted) {
+      ok(deleted, "Deleting an existing entry should succeed");
+      return cache.keys();
+    })
+    .then(function(keys) {
+      is(keys.length, 1, "Only one entry should exist now");
+      ok(keys[0].url.includes(tests[1]), "The correct entry must be deleted");
+    });
+}
+
+function testFragment() {
+  var tests = [
+    "//mochi.test:8888/?foo" + context,
+    "//mochi.test:8888/?bar" + context,
+    "//mochi.test:8888/?baz" + context + "#fragment",
+  ];
+  var cache;
+  return setupTest(tests)
+    .then(function(c) {
+      cache = c;
+      return cache.delete(tests[0] + "#fragment");
+    })
+    .then(function(deleted) {
+      ok(deleted, "Deleting an existing entry should succeed");
+      return cache.keys();
+    })
+    .then(function(keys) {
+      is(keys.length, 2, "Only one entry should exist now");
+      ok(keys[0].url.includes(tests[1]), "The correct entry must be deleted");
+      ok(
+        keys[1].url.includes(tests[2].replace("#fragment", "")),
+        "The correct entry must be deleted"
+      );
+      // Now, delete a request that was added with a fragment
+      return cache.delete("//mochi.test:8888/?baz" + context);
+    })
+    .then(function(deleted) {
+      ok(deleted, "Deleting an existing entry should succeed");
+      return cache.keys();
+    })
+    .then(function(keys) {
+      is(keys.length, 1, "Only one entry should exist now");
+      ok(keys[0].url.includes(tests[1]), "3The correct entry must be deleted");
+    });
+}
+
+function testInterleaved() {
+  var tests = [
+    "//mochi.test:8888/?foo" + context,
+    "//mochi.test:8888/?bar" + context,
+  ];
+  var newURL = "//mochi.test:8888/?baz" + context;
+  var cache;
+  return setupTest(tests)
+    .then(function(c) {
+      cache = c;
+      // Simultaneously add and delete a request
+      return Promise.all([cache.delete(newURL), cache.add(newURL)]);
+    })
+    .then(function(result) {
+      ok(!result[1], "deletion should fail");
+      return cache.keys();
+    })
+    .then(function(keys) {
+      is(keys.length, 3, "Tree entries should still exist");
+      ok(keys[0].url.includes(tests[0]), "The correct entry must be deleted");
+      ok(keys[1].url.includes(tests[1]), "The correct entry must be deleted");
+      ok(
+        keys[2].url.includes(newURL),
+        "The new entry should be correctly inserted"
+      );
+    });
+}
+
+// Make sure to clean up after each test step.
+function step(testPromise) {
+  return testPromise.then(function() {
+    caches.delete(name);
+  });
+}
+
+step(testBasics())
+  .then(function() {
+    return step(testFragment());
+  })
+  .then(function() {
+    return step(testInterleaved());
+  })
+  .then(function() {
+    testDone();
+  });