| // Copyright 2018 PDFium 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 <limits> |
| |
| #include "core/fxcrt/fx_number.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| TEST(fxnumber, Default) { |
| FX_Number number; |
| EXPECT_TRUE(number.IsInteger()); |
| EXPECT_FALSE(number.IsSigned()); |
| EXPECT_EQ(0u, number.GetUnsigned()); |
| EXPECT_EQ(0, number.GetSigned()); |
| EXPECT_FLOAT_EQ(0.0f, number.GetFloat()); |
| } |
| |
| TEST(fxnumber, FromUnsigned) { |
| FX_Number number(42u); |
| EXPECT_TRUE(number.IsInteger()); |
| EXPECT_FALSE(number.IsSigned()); |
| EXPECT_EQ(42u, number.GetUnsigned()); |
| EXPECT_EQ(42, number.GetSigned()); |
| EXPECT_FLOAT_EQ(42.0f, number.GetFloat()); |
| |
| // Show that assignment works. |
| FX_Number number2 = number; |
| EXPECT_TRUE(number2.IsInteger()); |
| EXPECT_FALSE(number2.IsSigned()); |
| EXPECT_EQ(42u, number2.GetUnsigned()); |
| EXPECT_EQ(42, number2.GetSigned()); |
| EXPECT_FLOAT_EQ(42.0F, number2.GetFloat()); |
| } |
| |
| TEST(fxnumber, FromSigned) { |
| FX_Number number(-128); |
| EXPECT_TRUE(number.IsInteger()); |
| EXPECT_TRUE(number.IsSigned()); |
| EXPECT_EQ(4294967168u, number.GetUnsigned()); |
| EXPECT_EQ(-128, number.GetSigned()); |
| EXPECT_FLOAT_EQ(-128.0f, number.GetFloat()); |
| |
| // Show that assignment works. |
| FX_Number number2 = number; |
| EXPECT_TRUE(number2.IsInteger()); |
| EXPECT_TRUE(number2.IsSigned()); |
| EXPECT_EQ(4294967168u, number2.GetUnsigned()); |
| EXPECT_EQ(-128, number2.GetSigned()); |
| EXPECT_FLOAT_EQ(-128.0f, number2.GetFloat()); |
| } |
| |
| TEST(fxnumber, FromFloat) { |
| FX_Number number(-100.001f); |
| EXPECT_FALSE(number.IsInteger()); |
| EXPECT_TRUE(number.IsSigned()); |
| EXPECT_EQ(4294967196u, number.GetUnsigned()); |
| EXPECT_EQ(-100, number.GetSigned()); |
| EXPECT_FLOAT_EQ(-100.001f, number.GetFloat()); |
| |
| // Show that assignment works. |
| FX_Number number2 = number; |
| EXPECT_FALSE(number2.IsInteger()); |
| EXPECT_TRUE(number2.IsSigned()); |
| EXPECT_EQ(4294967196u, number2.GetUnsigned()); |
| EXPECT_EQ(-100, number2.GetSigned()); |
| EXPECT_FLOAT_EQ(-100.001f, number2.GetFloat()); |
| } |
| |
| TEST(fxnumber, FromStringUnsigned) { |
| { |
| FX_Number number(""); |
| EXPECT_TRUE(number.IsInteger()); |
| EXPECT_FALSE(number.IsSigned()); |
| EXPECT_EQ(0u, number.GetUnsigned()); |
| } |
| { |
| FX_Number number("0"); |
| EXPECT_TRUE(number.IsInteger()); |
| EXPECT_FALSE(number.IsSigned()); |
| EXPECT_EQ(0u, number.GetUnsigned()); |
| } |
| { |
| FX_Number number("10"); |
| EXPECT_TRUE(number.IsInteger()); |
| EXPECT_FALSE(number.IsSigned()); |
| EXPECT_EQ(10u, number.GetUnsigned()); |
| } |
| { |
| FX_Number number("4294967295"); |
| EXPECT_TRUE(number.IsInteger()); |
| EXPECT_FALSE(number.IsSigned()); |
| EXPECT_EQ(std::numeric_limits<uint32_t>::max(), number.GetUnsigned()); |
| } |
| { |
| // Value overflows. |
| FX_Number number("4223423494965252"); |
| EXPECT_TRUE(number.IsInteger()); |
| EXPECT_FALSE(number.IsSigned()); |
| EXPECT_EQ(0u, number.GetUnsigned()); |
| } |
| { |
| // No explicit sign will allow the number to go negative if we retrieve |
| // it as a signed value. This is needed for things like the encryption |
| // Permissions flag (Table 3.20 PDF 1.7 spec) |
| FX_Number number("4294965252"); |
| EXPECT_EQ(-2044, number.GetSigned()); |
| } |
| } |
| |
| TEST(fxnumber, FromStringSigned) { |
| { |
| FX_Number number("-0"); |
| EXPECT_TRUE(number.IsInteger()); |
| EXPECT_TRUE(number.IsSigned()); |
| EXPECT_EQ(0, number.GetSigned()); |
| } |
| { |
| FX_Number number("+0"); |
| EXPECT_TRUE(number.IsInteger()); |
| EXPECT_TRUE(number.IsSigned()); |
| EXPECT_EQ(0, number.GetSigned()); |
| } |
| { |
| FX_Number number("-10"); |
| EXPECT_TRUE(number.IsInteger()); |
| EXPECT_TRUE(number.IsSigned()); |
| EXPECT_EQ(-10, number.GetSigned()); |
| } |
| { |
| FX_Number number("+10"); |
| EXPECT_TRUE(number.IsInteger()); |
| EXPECT_TRUE(number.IsSigned()); |
| EXPECT_EQ(10, number.GetSigned()); |
| } |
| { |
| FX_Number number("-2147483648"); |
| EXPECT_TRUE(number.IsInteger()); |
| EXPECT_TRUE(number.IsSigned()); |
| EXPECT_EQ(std::numeric_limits<int32_t>::min(), number.GetSigned()); |
| } |
| { |
| FX_Number number("+2147483647"); |
| EXPECT_TRUE(number.IsInteger()); |
| EXPECT_TRUE(number.IsSigned()); |
| EXPECT_EQ(std::numeric_limits<int32_t>::max(), number.GetSigned()); |
| } |
| { |
| // Value underflows. |
| FX_Number number("-2147483649"); |
| EXPECT_EQ(0u, number.GetUnsigned()); |
| EXPECT_EQ(0, number.GetSigned()); |
| } |
| { |
| // Value overflows. |
| FX_Number number("+2147483648"); |
| EXPECT_EQ(0u, number.GetUnsigned()); |
| EXPECT_EQ(0, number.GetSigned()); |
| } |
| } |
| |
| TEST(fxnumber, FromStringFloat) { |
| FX_Number number("3.24"); |
| EXPECT_FLOAT_EQ(3.24f, number.GetFloat()); |
| } |