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diff --git a/dom/indexedDB/test/unit/test_remove_index.js b/dom/indexedDB/test/unit/test_remove_index.js
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+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+/* exported testGenerator */
+var testGenerator = testSteps();
+
+function* testSteps() {
+ const name = this.window ? window.location.pathname : "Splendid Test";
+ const indexName = "My Test Index";
+
+ let request = indexedDB.open(name, 1);
+ request.onerror = errorHandler;
+ request.onupgradeneeded = grabEventAndContinueHandler;
+ let event = yield undefined;
+
+ let db = event.target.result;
+ is(db.objectStoreNames.length, 0, "Correct objectStoreNames list");
+
+ let objectStore = db.createObjectStore("test store", { keyPath: "foo" });
+ is(db.objectStoreNames.length, 1, "Correct objectStoreNames list");
+ is(db.objectStoreNames.item(0), objectStore.name, "Correct name");
+
+ is(objectStore.indexNames.length, 0, "Correct indexNames list");
+
+ let index = objectStore.createIndex(indexName, "foo");
+
+ is(objectStore.indexNames.length, 1, "Correct indexNames list");
+ is(objectStore.indexNames.item(0), indexName, "Correct name");
+ is(objectStore.index(indexName), index, "Correct instance");
+
+ objectStore.deleteIndex(indexName);
+
+ is(objectStore.indexNames.length, 0, "Correct indexNames list");
+ try {
+ objectStore.index(indexName);
+ ok(false, "should have thrown");
+ } catch (ex) {
+ ok(ex instanceof DOMException, "Got a DOMException");
+ is(ex.name, "NotFoundError", "expect a NotFoundError");
+ is(ex.code, DOMException.NOT_FOUND_ERR, "expect a NOT_FOUND_ERR");
+ }
+
+ let index2 = objectStore.createIndex(indexName, "foo");
+ isnot(index, index2, "New instance should be created");
+
+ is(objectStore.indexNames.length, 1, "Correct recreacted indexNames list");
+ is(objectStore.indexNames.item(0), indexName, "Correct recreacted name");
+ is(objectStore.index(indexName), index2, "Correct instance");
+
+ event.target.transaction.oncomplete = grabEventAndContinueHandler;
+ event = yield undefined;
+
+ finishTest();
+}