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// 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());
}
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