1 files changed, 74 insertions, 0 deletions
diff --git a/src/utils/stack_test.cc b/src/utils/stack_test.cc
new file mode 100644
index 0000000..4de2ab6
--- /dev/null
+++ b/src/utils/stack_test.cc
@@ -0,0 +1,74 @@
+// Copyright 2021 The libgav1 Authors
+//
+// 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 "src/utils/stack.h"
+
+#include <cstdint>
+#include <utility>
+
+#include "gtest/gtest.h"
+
+namespace libgav1 {
+namespace {
+
+constexpr int kStackSize = 8;
+
+TEST(StackTest, SimpleType) {
+  Stack<int, kStackSize> stack;
+  EXPECT_TRUE(stack.Empty());
+
+  for (int i = 0; i < kStackSize; ++i) {
+    stack.Push(i);
+    EXPECT_FALSE(stack.Empty());
+  }
+
+  for (int i = kStackSize - 1; i >= 0; --i) {
+    EXPECT_EQ(stack.Pop(), i);
+  }
+  EXPECT_TRUE(stack.Empty());
+}
+
+TEST(StackTest, LargeStruct) {
+  struct LargeMoveOnlyStruct {
+    LargeMoveOnlyStruct() = default;
+    // Move only.
+    LargeMoveOnlyStruct(LargeMoveOnlyStruct&& other) = default;
+    LargeMoveOnlyStruct& operator=(LargeMoveOnlyStruct&& other) = default;
+
+    int32_t array1[1000];
+    uint64_t array2[2000];
+  };
+
+  Stack<LargeMoveOnlyStruct, kStackSize> stack;
+  EXPECT_TRUE(stack.Empty());
+
+  LargeMoveOnlyStruct large_move_only_struct[kStackSize];
+  for (int i = 0; i < kStackSize; ++i) {
+    LargeMoveOnlyStruct& l = large_move_only_struct[i];
+    l.array1[0] = i;
+    l.array2[0] = i;
+    stack.Push(std::move(l));
+    EXPECT_FALSE(stack.Empty());
+  }
+
+  for (int i = kStackSize - 1; i >= 0; --i) {
+    LargeMoveOnlyStruct l = stack.Pop();
+    EXPECT_EQ(l.array1[0], i);
+    EXPECT_EQ(l.array2[0], i);
+  }
+  EXPECT_TRUE(stack.Empty());
+}
+
+}  // namespace
+}  // namespace libgav1