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test/cctest/test-checks.cc

Index: test/cctest/test-checks.cc
diff --git a/test/cctest/test-checks.cc b/test/cctest/test-checks.cc
new file mode 100644
index 0000000000000000000000000000000000000000..a49a7dbe2a68a9f97a07589538755b0452c70115
--- /dev/null
+++ b/test/cctest/test-checks.cc
@@ -0,0 +1,26 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "src/checks.h"
+
+#include "test/cctest/cctest.h"
+
+
+TEST(CheckEqualsZeroAndMinusZero) {
+  CHECK_EQ(0.0, 0.0);
+  CHECK_NE(0.0, -0.0);
+  CHECK_NE(-0.0, 0.0);
+  CHECK_EQ(-0.0, -0.0);
+}
+
+
+TEST(CheckEqualsReflexivity) {
+  double inf = V8_INFINITY;
+  double nan = v8::base::OS::nan_value();
+  double constants[] = {-nan, -inf, -3.1415, -1.0,   -0.1, -0.0,
+                        0.0,  0.1,  1.0,     3.1415, inf,  nan};
+  for (size_t i = 0; i < ARRAY_SIZE(constants); ++i) {
+    CHECK_EQ(constants[i], constants[i]);
+  }
+}