1 files changed, 92 insertions, 0 deletions
diff --git a/storage/test/unit/test_storage_function.js b/storage/test/unit/test_storage_function.js
new file mode 100644
index 0000000000..1b11aa4a52
--- /dev/null
+++ b/storage/test/unit/test_storage_function.js
@@ -0,0 +1,92 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// This file tests the custom functions
+
+var testNums = [1, 2, 3, 4];
+
+function setup() {
+  getOpenedDatabase().createTable("function_tests", "id INTEGER PRIMARY KEY");
+
+  var stmt = createStatement("INSERT INTO function_tests (id) VALUES(?1)");
+  for (let i = 0; i < testNums.length; ++i) {
+    stmt.bindByIndex(0, testNums[i]);
+    stmt.execute();
+  }
+  stmt.reset();
+  stmt.finalize();
+}
+
+var testSquareFunction = {
+  calls: 0,
+
+  onFunctionCall(val) {
+    ++this.calls;
+    return val.getInt32(0) * val.getInt32(0);
+  },
+};
+
+function test_function_registration() {
+  var msc = getOpenedDatabase();
+  msc.createFunction("test_square", 1, testSquareFunction);
+}
+
+function test_function_no_double_registration() {
+  var msc = getOpenedDatabase();
+  try {
+    msc.createFunction("test_square", 2, testSquareFunction);
+    do_throw("We shouldn't get here!");
+  } catch (e) {
+    Assert.equal(Cr.NS_ERROR_FAILURE, e.result);
+  }
+}
+
+function test_function_removal() {
+  var msc = getOpenedDatabase();
+  msc.removeFunction("test_square");
+  // Should be Ok now
+  msc.createFunction("test_square", 1, testSquareFunction);
+}
+
+function test_function_aliases() {
+  var msc = getOpenedDatabase();
+  msc.createFunction("test_square2", 1, testSquareFunction);
+}
+
+function test_function_call() {
+  var stmt = createStatement("SELECT test_square(id) FROM function_tests");
+  while (stmt.executeStep()) {
+    // Do nothing.
+  }
+  Assert.equal(testNums.length, testSquareFunction.calls);
+  testSquareFunction.calls = 0;
+  stmt.finalize();
+}
+
+function test_function_result() {
+  var stmt = createStatement("SELECT test_square(42) FROM function_tests");
+  stmt.executeStep();
+  Assert.equal(42 * 42, stmt.getInt32(0));
+  testSquareFunction.calls = 0;
+  stmt.finalize();
+}
+
+var tests = [
+  test_function_registration,
+  test_function_no_double_registration,
+  test_function_removal,
+  test_function_aliases,
+  test_function_call,
+  test_function_result,
+];
+
+function run_test() {
+  setup();
+
+  for (var i = 0; i < tests.length; i++) {
+    tests[i]();
+  }
+
+  cleanup();
+}