1 files changed, 50 insertions, 0 deletions
diff --git a/test/gtest/lattices.cpp b/test/gtest/lattices.cpp
new file mode 100644
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--- /dev/null
+++ b/test/gtest/lattices.cpp
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2023 WebAssembly Community Group participants
+ *
+ * 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 "analysis/lattices/bool.h"
+#include "gtest/gtest.h"
+
+using namespace wasm;
+
+TEST(BoolLattice, GetBottom) {
+  analysis::Bool lattice;
+  EXPECT_FALSE(lattice.getBottom());
+}
+
+TEST(BoolLattice, Compare) {
+  analysis::Bool lattice;
+  EXPECT_EQ(lattice.compare(false, false), analysis::EQUAL);
+  EXPECT_EQ(lattice.compare(false, true), analysis::LESS);
+  EXPECT_EQ(lattice.compare(true, false), analysis::GREATER);
+  EXPECT_EQ(lattice.compare(true, true), analysis::EQUAL);
+}
+
+TEST(BoolLattice, Join) {
+  analysis::Bool lattice;
+  bool elem = false;
+
+  EXPECT_FALSE(lattice.join(elem, false));
+  ASSERT_FALSE(elem);
+
+  EXPECT_TRUE(lattice.join(elem, true));
+  ASSERT_TRUE(elem);
+
+  EXPECT_FALSE(lattice.join(elem, false));
+  ASSERT_TRUE(elem);
+
+  EXPECT_FALSE(lattice.join(elem, true));
+  ASSERT_TRUE(elem);
+}