1 files changed, 123 insertions, 0 deletions
diff --git a/runtime/primitive_test.cc b/runtime/primitive_test.cc
new file mode 100644
index 0000000000..e433b15b61
--- /dev/null
+++ b/runtime/primitive_test.cc
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+/*
+ * Copyright (C) 2018 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 "primitive.h"
+
+#include "gtest/gtest.h"
+
+namespace art {
+
+namespace {
+
+void CheckPrimitiveTypeWidensTo(Primitive::Type from,
+                                const std::vector<Primitive::Type>& expected_to_types) {
+  std::vector<Primitive::Type> actual_to_types;
+  int last = static_cast<int>(Primitive::Type::kPrimLast);
+  for (int i = 0; i <= last; ++i) {
+    Primitive::Type to = static_cast<Primitive::Type>(i);
+    if (Primitive::IsWidenable(from, to)) {
+      actual_to_types.push_back(to);
+    }
+  }
+  EXPECT_EQ(expected_to_types, actual_to_types);
+}
+
+}  // namespace
+
+TEST(PrimitiveTest, NotWidensTo) {
+  const std::vector<Primitive::Type> to_types = {};
+  CheckPrimitiveTypeWidensTo(Primitive::Type::kPrimNot, to_types);
+}
+
+TEST(PrimitiveTest, BooleanWidensTo) {
+  const std::vector<Primitive::Type> to_types = {};
+  CheckPrimitiveTypeWidensTo(Primitive::Type::kPrimBoolean, to_types);
+}
+
+TEST(PrimitiveTest, ByteWidensTo) {
+  const std::vector<Primitive::Type> to_types = {
+    Primitive::Type::kPrimByte,
+    Primitive::Type::kPrimShort,
+    Primitive::Type::kPrimInt,
+    Primitive::Type::kPrimLong,
+    Primitive::Type::kPrimFloat,
+    Primitive::Type::kPrimDouble,
+  };
+  CheckPrimitiveTypeWidensTo(Primitive::Type::kPrimByte, to_types);
+}
+
+TEST(PrimitiveTest, CharWidensTo) {
+  const std::vector<Primitive::Type> to_types = {
+    Primitive::Type::kPrimChar,
+    Primitive::Type::kPrimInt,
+    Primitive::Type::kPrimLong,
+    Primitive::Type::kPrimFloat,
+    Primitive::Type::kPrimDouble,
+  };
+  CheckPrimitiveTypeWidensTo(Primitive::Type::kPrimChar, to_types);
+}
+
+TEST(PrimitiveTest, ShortWidensTo) {
+  const std::vector<Primitive::Type> to_types = {
+    Primitive::Type::kPrimShort,
+    Primitive::Type::kPrimInt,
+    Primitive::Type::kPrimLong,
+    Primitive::Type::kPrimFloat,
+    Primitive::Type::kPrimDouble,
+  };
+  CheckPrimitiveTypeWidensTo(Primitive::Type::kPrimShort, to_types);
+}
+
+TEST(PrimitiveTest, IntWidensTo) {
+  const std::vector<Primitive::Type> to_types = {
+    Primitive::Type::kPrimInt,
+    Primitive::Type::kPrimLong,
+    Primitive::Type::kPrimFloat,
+    Primitive::Type::kPrimDouble,
+  };
+  CheckPrimitiveTypeWidensTo(Primitive::Type::kPrimInt, to_types);
+}
+
+TEST(PrimitiveTest, LongWidensTo) {
+  const std::vector<Primitive::Type> to_types = {
+    Primitive::Type::kPrimLong,
+    Primitive::Type::kPrimFloat,
+    Primitive::Type::kPrimDouble,
+  };
+  CheckPrimitiveTypeWidensTo(Primitive::Type::kPrimLong, to_types);
+}
+
+TEST(PrimitiveTest, FloatWidensTo) {
+  const std::vector<Primitive::Type> to_types = {
+    Primitive::Type::kPrimFloat,
+    Primitive::Type::kPrimDouble,
+  };
+  CheckPrimitiveTypeWidensTo(Primitive::Type::kPrimFloat, to_types);
+}
+
+TEST(PrimitiveTest, DoubleWidensTo) {
+  const std::vector<Primitive::Type> to_types = {
+    Primitive::Type::kPrimDouble,
+  };
+  CheckPrimitiveTypeWidensTo(Primitive::Type::kPrimDouble, to_types);
+}
+
+TEST(PrimitiveTest, VoidWidensTo) {
+  const std::vector<Primitive::Type> to_types = {};
+  CheckPrimitiveTypeWidensTo(Primitive::Type::kPrimVoid, to_types);
+}
+
+}  // namespace art