// Copyright 2016 PDFium 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 <limits>
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#include "core/fxcrt/fx_string.h"
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#include "testing/gtest/include/gtest/gtest.h"
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TEST(fxstring, FX_atonum) {
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int i;
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EXPECT_TRUE(FX_atonum("10", &i));
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EXPECT_EQ(10, i);
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EXPECT_TRUE(FX_atonum("-10", &i));
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EXPECT_EQ(-10, i);
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EXPECT_TRUE(FX_atonum("+10", &i));
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EXPECT_EQ(10, i);
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EXPECT_TRUE(FX_atonum("-2147483648", &i));
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EXPECT_EQ(std::numeric_limits<int>::min(), i);
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EXPECT_TRUE(FX_atonum("2147483647", &i));
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EXPECT_EQ(2147483647, i);
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// Value overflows.
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EXPECT_TRUE(FX_atonum("-2147483649", &i));
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EXPECT_EQ(0, i);
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// Value overflows.
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EXPECT_TRUE(FX_atonum("+2147483648", &i));
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EXPECT_EQ(0, i);
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// Value overflows.
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EXPECT_TRUE(FX_atonum("4223423494965252", &i));
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EXPECT_EQ(0, i);
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// No explicit sign will allow the number to go negative. This is for things
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// like the encryption Permissions flag (Table 3.20 PDF 1.7 spec)
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EXPECT_TRUE(FX_atonum("4294965252", &i));
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EXPECT_EQ(-2044, i);
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EXPECT_TRUE(FX_atonum("-4294965252", &i));
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EXPECT_EQ(0, i);
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EXPECT_TRUE(FX_atonum("+4294965252", &i));
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EXPECT_EQ(0, i);
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float f;
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EXPECT_FALSE(FX_atonum("3.24", &f));
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EXPECT_FLOAT_EQ(3.24f, f);
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}
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