1 files changed, 87 insertions, 0 deletions
diff --git a/tools/aapt2/optimize/ResourceDeduper_test.cpp b/tools/aapt2/optimize/ResourceDeduper_test.cpp
new file mode 100644
index 000000000000..4d00fa6efe37
--- /dev/null
+++ b/tools/aapt2/optimize/ResourceDeduper_test.cpp
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "optimize/ResourceDeduper.h"
+
+#include "ResourceTable.h"
+#include "test/Test.h"
+
+namespace aapt {
+
+TEST(ResourceDeduperTest, SameValuesAreDeduped) {
+  std::unique_ptr<IAaptContext> context = test::ContextBuilder().Build();
+  const ConfigDescription default_config = {};
+  const ConfigDescription en_config = test::ParseConfigOrDie("en");
+  const ConfigDescription en_v21_config = test::ParseConfigOrDie("en-v21");
+  // Chosen because this configuration is compatible with en.
+  const ConfigDescription land_config = test::ParseConfigOrDie("land");
+
+  std::unique_ptr<ResourceTable> table =
+      test::ResourceTableBuilder()
+          .AddString("android:string/dedupe", ResourceId{}, default_config,
+                     "dedupe")
+          .AddString("android:string/dedupe", ResourceId{}, en_config, "dedupe")
+          .AddString("android:string/dedupe", ResourceId{}, land_config,
+                     "dedupe")
+          .AddString("android:string/dedupe2", ResourceId{}, default_config,
+                     "dedupe")
+          .AddString("android:string/dedupe2", ResourceId{}, en_config,
+                     "dedupe")
+          .AddString("android:string/dedupe2", ResourceId{}, en_v21_config,
+                     "keep")
+          .AddString("android:string/dedupe2", ResourceId{}, land_config,
+                     "dedupe")
+          .Build();
+
+  ASSERT_TRUE(ResourceDeduper().Consume(context.get(), table.get()));
+  EXPECT_EQ(nullptr, test::GetValueForConfig<String>(
+                         table.get(), "android:string/dedupe", en_config));
+  EXPECT_EQ(nullptr, test::GetValueForConfig<String>(
+                         table.get(), "android:string/dedupe", land_config));
+  EXPECT_EQ(nullptr, test::GetValueForConfig<String>(
+                         table.get(), "android:string/dedupe2", en_config));
+  EXPECT_NE(nullptr, test::GetValueForConfig<String>(
+                         table.get(), "android:string/dedupe2", en_v21_config));
+}
+
+TEST(ResourceDeduperTest, DifferentValuesAreKept) {
+  std::unique_ptr<IAaptContext> context = test::ContextBuilder().Build();
+  const ConfigDescription default_config = {};
+  const ConfigDescription en_config = test::ParseConfigOrDie("en");
+  const ConfigDescription en_v21_config = test::ParseConfigOrDie("en-v21");
+  // Chosen because this configuration is compatible with en.
+  const ConfigDescription land_config = test::ParseConfigOrDie("land");
+
+  std::unique_ptr<ResourceTable> table =
+      test::ResourceTableBuilder()
+          .AddString("android:string/keep", ResourceId{}, default_config,
+                     "keep")
+          .AddString("android:string/keep", ResourceId{}, en_config, "keep")
+          .AddString("android:string/keep", ResourceId{}, en_v21_config,
+                     "keep2")
+          .AddString("android:string/keep", ResourceId{}, land_config, "keep2")
+          .Build();
+
+  ASSERT_TRUE(ResourceDeduper().Consume(context.get(), table.get()));
+  EXPECT_NE(nullptr, test::GetValueForConfig<String>(
+                         table.get(), "android:string/keep", en_config));
+  EXPECT_NE(nullptr, test::GetValueForConfig<String>(
+                         table.get(), "android:string/keep", en_v21_config));
+  EXPECT_NE(nullptr, test::GetValueForConfig<String>(
+                         table.get(), "android:string/keep", land_config));
+}
+
+}  // namespace aapt