1 files changed, 108 insertions, 0 deletions
diff --git a/testing/web-platform/tests/IndexedDB/idbindex_count.any.js b/testing/web-platform/tests/IndexedDB/idbindex_count.any.js
new file mode 100644
index 0000000000..25d743e422
--- /dev/null
+++ b/testing/web-platform/tests/IndexedDB/idbindex_count.any.js
@@ -0,0 +1,108 @@
+// META: global=window,worker
+// META: title=IDBIndex.count()
+// META: script=resources/support.js
+// @author Microsoft <https://www.microsoft.com>
+// @author Odin Hørthe Omdal <mailto:odinho@opera.com>
+// @author Intel <http://www.intel.com>
+
+'use_strict';
+
+async_test(t => {
+    let db;
+
+    const open_rq = createdb(t);
+    open_rq.onupgradeneeded = function(e) {
+      db = e.target.result;
+      const store = db.createObjectStore("store", { autoIncrement: true });
+      store.createIndex("index", "indexedProperty");
+      for (let i = 0; i < 10; i++) {
+        store.add({ indexedProperty: "data" + i });
+      }
+    };
+
+    open_rq.onsuccess = function(e) {
+      const rq = db.transaction("store", "readonly", { durability: 'relaxed' })
+        .objectStore("store")
+        .index("index")
+        .count();
+
+      rq.onsuccess = t.step_func(function(e) {
+        assert_equals(e.target.result, 10);
+        t.done();
+      });
+    };
+}, 'count() returns the number of records in the index');
+
+async_test(t => {
+    let db;
+
+    const open_rq = createdb(t);
+    open_rq.onupgradeneeded = function(e) {
+      db = e.target.result;
+      const store = db.createObjectStore("store", { autoIncrement: true });
+      store.createIndex("index", "indexedProperty");
+
+      for (let i = 0; i < 10; i++) {
+        store.add({ indexedProperty: "data" + i });
+      }
+    };
+
+    open_rq.onsuccess = function(e) {
+      const rq = db.transaction("store", "readonly", { durability: 'relaxed' })
+        .objectStore("store")
+        .index("index")
+        .count(IDBKeyRange.bound('data0', 'data4'));
+
+      rq.onsuccess = t.step_func(function(e) {
+        assert_equals(e.target.result, 5);
+        t.done();
+      });
+    };
+}, 'count() returns the number of records that have keys within the range');
+
+async_test(t => {
+    let db;
+
+    const open_rq = createdb(t);
+    open_rq.onupgradeneeded = function(e) {
+      db = e.target.result;
+
+      const store = db.createObjectStore("store", { autoIncrement: true });
+      store.createIndex("myindex", "idx");
+
+      for (let i = 0; i < 10; i++)
+        store.add({ idx: "data_" + (i%2) });
+
+      store.index("myindex").count("data_0").onsuccess = t.step_func(function(e) {
+        assert_equals(e.target.result, 5, "count(data_0)");
+        t.done();
+      });
+    };
+}, 'count() returns the number of records that have keys with the key');
+
+async_test(t => {
+    let db;
+
+    const open_rq = createdb(t);
+    open_rq.onupgradeneeded = function(e) {
+      db = e.target.result;
+      const store = db.createObjectStore("store", { autoIncrement: true });
+      store.createIndex("index", "indexedProperty");
+
+      for (let i = 0; i < 10; i++) {
+        store.add({ indexedProperty: "data" + i });
+      }
+    };
+
+    open_rq.onsuccess = function(e) {
+      const index = db.transaction("store", "readonly", { durability: 'relaxed' })
+        .objectStore("store")
+        .index("index");
+
+      assert_throws_dom("DataError", function () {
+        index.count(NaN);
+      });
+
+      t.done();
+    };
+}, 'count() throws DataError when using invalid key');