mark@chromium.org
53403e7e87
Review URL: http://codereview.chromium.org/5801 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@2712 0039d316-1c4b-4281-b951-d872f2087c98
30 linhas
796 B
C++
30 linhas
796 B
C++
// Copyright (c) 2008 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/rand_util.h"
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#include <limits>
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#include "testing/gtest/include/gtest/gtest.h"
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namespace {
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const int kIntMin = std::numeric_limits<int>::min();
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const int kIntMax = std::numeric_limits<int>::max();
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} // namespace
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TEST(RandUtilTest, SameMinAndMax) {
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EXPECT_EQ(base::RandInt(0, 0), 0);
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EXPECT_EQ(base::RandInt(kIntMin, kIntMin), kIntMin);
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EXPECT_EQ(base::RandInt(kIntMax, kIntMax), kIntMax);
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}
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TEST(RandUtilTest, RandDouble) {
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// Force 64-bit precision, making sure we're not in a 80-bit FPU register.
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volatile double number = base::RandDouble();
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EXPECT_GT(1.0, number);
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EXPECT_LE(0.0, number);
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}
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