1 files changed, 103 insertions, 0 deletions
diff --git a/mfbt/tests/TestHashTable.cpp b/mfbt/tests/TestHashTable.cpp
new file mode 100644
index 0000000000..c648184040
--- /dev/null
+++ b/mfbt/tests/TestHashTable.cpp
@@ -0,0 +1,103 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#include "mozilla/HashTable.h"
+#include "mozilla/PairHash.h"
+
+#include <utility>
+
+void TestMoveConstructor() {
+  using namespace mozilla;
+
+  HashMap<int, int> map;
+  MOZ_RELEASE_ASSERT(map.putNew(3, 32));
+  MOZ_RELEASE_ASSERT(map.putNew(4, 42));
+  MOZ_RELEASE_ASSERT(map.count() == 2);
+  MOZ_RELEASE_ASSERT(!map.empty());
+  MOZ_RELEASE_ASSERT(!map.lookup(2));
+  MOZ_RELEASE_ASSERT(map.lookup(3)->value() == 32);
+  MOZ_RELEASE_ASSERT(map.lookup(4)->value() == 42);
+
+  HashMap<int, int> moved = std::move(map);
+  MOZ_RELEASE_ASSERT(moved.count() == 2);
+  MOZ_RELEASE_ASSERT(!moved.empty());
+  MOZ_RELEASE_ASSERT(!moved.lookup(2));
+  MOZ_RELEASE_ASSERT(moved.lookup(3)->value() == 32);
+  MOZ_RELEASE_ASSERT(moved.lookup(4)->value() == 42);
+
+  MOZ_RELEASE_ASSERT(map.empty());
+  MOZ_RELEASE_ASSERT(!map.count());
+}
+
+enum SimpleEnum { SIMPLE_1, SIMPLE_2 };
+
+enum class ClassEnum : int {
+  CLASS_ENUM_1,
+  CLASS_ENUM_2,
+};
+
+void TestEnumHash() {
+  using namespace mozilla;
+
+  HashMap<SimpleEnum, int> map;
+  MOZ_RELEASE_ASSERT(map.put(SIMPLE_1, 1));
+  MOZ_RELEASE_ASSERT(map.put(SIMPLE_2, 2));
+
+  MOZ_RELEASE_ASSERT(map.lookup(SIMPLE_1)->value() == 1);
+  MOZ_RELEASE_ASSERT(map.lookup(SIMPLE_2)->value() == 2);
+
+  HashMap<ClassEnum, int> map2;
+  MOZ_RELEASE_ASSERT(map2.put(ClassEnum::CLASS_ENUM_1, 1));
+  MOZ_RELEASE_ASSERT(map2.put(ClassEnum::CLASS_ENUM_2, 2));
+
+  MOZ_RELEASE_ASSERT(map2.lookup(ClassEnum::CLASS_ENUM_1)->value() == 1);
+  MOZ_RELEASE_ASSERT(map2.lookup(ClassEnum::CLASS_ENUM_2)->value() == 2);
+}
+
+void TestHashPair() {
+  using namespace mozilla;
+
+  // Test with std::pair
+  {
+    HashMap<std::pair<int, bool>, int, PairHasher<int, bool>> map;
+    std::pair<int, bool> key1 = std::make_pair(1, true);
+    MOZ_RELEASE_ASSERT(map.putNew(key1, 1));
+    MOZ_RELEASE_ASSERT(map.has(key1));
+    std::pair<int, bool> key2 = std::make_pair(1, false);
+    MOZ_RELEASE_ASSERT(map.putNew(key2, 1));
+    std::pair<int, bool> key3 = std::make_pair(2, false);
+    MOZ_RELEASE_ASSERT(map.putNew(key3, 2));
+    MOZ_RELEASE_ASSERT(map.has(key3));
+
+    MOZ_RELEASE_ASSERT(map.lookup(key1)->value() == 1);
+    MOZ_RELEASE_ASSERT(map.lookup(key2)->value() == 1);
+    MOZ_RELEASE_ASSERT(map.lookup(key3)->value() == 2);
+  }
+  // Test wtih compact pair
+  {
+    HashMap<mozilla::CompactPair<int, bool>, int, CompactPairHasher<int, bool>>
+        map;
+    mozilla::CompactPair<int, bool> key1 = mozilla::MakeCompactPair(1, true);
+    MOZ_RELEASE_ASSERT(map.putNew(key1, 1));
+    MOZ_RELEASE_ASSERT(map.has(key1));
+    mozilla::CompactPair<int, bool> key2 = mozilla::MakeCompactPair(1, false);
+    MOZ_RELEASE_ASSERT(map.putNew(key2, 1));
+    mozilla::CompactPair<int, bool> key3 = mozilla::MakeCompactPair(2, false);
+    MOZ_RELEASE_ASSERT(map.putNew(key3, 2));
+    MOZ_RELEASE_ASSERT(map.has(key3));
+
+    MOZ_RELEASE_ASSERT(map.lookup(key1)->value() == 1);
+    MOZ_RELEASE_ASSERT(map.lookup(key2)->value() == 1);
+    MOZ_RELEASE_ASSERT(map.lookup(key3)->value() == 2);
+  }
+}
+
+int main() {
+  TestMoveConstructor();
+  TestEnumHash();
+  TestHashPair();
+  return 0;
+}