Test EXPECT_THROW_MSG.

test/assert-test.cc

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+/*
+ Tests of custom gtest assertions.
+
+ Copyright (c) 2012-2014, Victor Zverovich
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+    list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+    this list of conditions and the following disclaimer in the documentation
+    and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "format-test.h"
+
+#include <stdexcept>
+#include <gtest/gtest-spi.h>
+
+namespace {
+  
+// Tests that assertion macros evaluate their arguments exactly once.
+class SingleEvaluationTest : public ::testing::Test {
+ protected:
+  SingleEvaluationTest() {
+    a_ = 0;
+  }
+  
+  static int a_;
+};
+
+int SingleEvaluationTest::a_;
+
+void ThrowException() {
+  throw std::runtime_error("test");
+}
+
+// Tests that assertion arguments are evaluated exactly once.
+TEST_F(SingleEvaluationTest, ExceptionTests) {
+  // successful EXPECT_THROW_MSG
+  EXPECT_THROW_MSG({  // NOLINT
+    a_++;
+    ThrowException();
+  }, std::exception, "test");
+  EXPECT_EQ(1, a_);
+
+  // failed EXPECT_THROW_MSG, throws different type
+  EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG({  // NOLINT
+    a_++;
+    ThrowException();
+  }, std::logic_error, "test"), "throws a different type");
+  EXPECT_EQ(2, a_);
+
+  // failed EXPECT_THROW_MSG, throws an exception with different message
+  EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG({  // NOLINT
+    a_++;
+    ThrowException();
+  }, std::exception, "other"), "throws an exception with a different message");
+  EXPECT_EQ(3, a_);
+
+  // failed EXPECT_THROW_MSG, throws nothing
+  EXPECT_NONFATAL_FAILURE(
+      EXPECT_THROW_MSG(a_++, std::exception, "test"), "throws nothing");
+  EXPECT_EQ(4, a_);
+}
+
+// TODO: more tests
+
+}  // namespace