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Diffstat (limited to 'core/fxcrt/bytestring_unittest.cpp')
| -rw-r--r-- | core/fxcrt/bytestring_unittest.cpp | 1642 |
1 files changed, 1642 insertions, 0 deletions
diff --git a/core/fxcrt/bytestring_unittest.cpp b/core/fxcrt/bytestring_unittest.cpp new file mode 100644 index 0000000000..06ba1f42fd --- /dev/null +++ b/core/fxcrt/bytestring_unittest.cpp @@ -0,0 +1,1642 @@ +// Copyright 2014 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 "core/fxcrt/bytestring.h" + +#include <algorithm> +#include <vector> + +#include "core/fxcrt/fx_string.h" +#include "testing/gtest/include/gtest/gtest.h" +#include "third_party/base/stl_util.h" + +TEST(ByteString, ElementAccess) { + const ByteString abc("abc"); + EXPECT_EQ('a', abc[0]); + EXPECT_EQ('b', abc[1]); + EXPECT_EQ('c', abc[2]); +#ifndef NDEBUG + EXPECT_DEATH({ abc[3]; }, ".*"); +#endif + + ByteString mutable_abc = abc; + EXPECT_EQ(abc.c_str(), mutable_abc.c_str()); + EXPECT_EQ('a', mutable_abc[0]); + EXPECT_EQ('b', mutable_abc[1]); + EXPECT_EQ('c', mutable_abc[2]); + EXPECT_EQ(abc.c_str(), mutable_abc.c_str()); + EXPECT_EQ("abc", abc); + + const char* c_str = abc.c_str(); + mutable_abc.SetAt(0, 'd'); + EXPECT_EQ(c_str, abc.c_str()); + EXPECT_NE(c_str, mutable_abc.c_str()); + EXPECT_EQ("abc", abc); + EXPECT_EQ("dbc", mutable_abc); + + mutable_abc.SetAt(1, 'e'); + EXPECT_EQ("abc", abc); + EXPECT_EQ("dec", mutable_abc); + + mutable_abc.SetAt(2, 'f'); + EXPECT_EQ("abc", abc); + EXPECT_EQ("def", mutable_abc); +#ifndef NDEBUG + EXPECT_DEATH({ mutable_abc.SetAt(3, 'g'); }, ".*"); + EXPECT_EQ("abc", abc); +#endif +} + +TEST(ByteString, OperatorLT) { + ByteString empty; + ByteString a("a"); + ByteString abc("abc"); + ByteString def("def"); + + EXPECT_FALSE(empty < empty); + EXPECT_FALSE(a < a); + EXPECT_FALSE(abc < abc); + EXPECT_FALSE(def < def); + + EXPECT_TRUE(empty < a); + EXPECT_FALSE(a < empty); + + EXPECT_TRUE(empty < abc); + EXPECT_FALSE(abc < empty); + + EXPECT_TRUE(empty < def); + EXPECT_FALSE(def < empty); + + EXPECT_TRUE(a < abc); + EXPECT_FALSE(abc < a); + + EXPECT_TRUE(a < def); + EXPECT_FALSE(def < a); + + EXPECT_TRUE(abc < def); + EXPECT_FALSE(def < abc); +} + +TEST(ByteString, OperatorEQ) { + ByteString null_string; + EXPECT_TRUE(null_string == null_string); + + ByteString empty_string(""); + EXPECT_TRUE(empty_string == empty_string); + EXPECT_TRUE(empty_string == null_string); + EXPECT_TRUE(null_string == empty_string); + + ByteString deleted_string("hello"); + deleted_string.Delete(0, 5); + EXPECT_TRUE(deleted_string == deleted_string); + EXPECT_TRUE(deleted_string == null_string); + EXPECT_TRUE(deleted_string == empty_string); + EXPECT_TRUE(null_string == deleted_string); + EXPECT_TRUE(empty_string == deleted_string); + + ByteString byte_string("hello"); + EXPECT_TRUE(byte_string == byte_string); + EXPECT_FALSE(byte_string == null_string); + EXPECT_FALSE(byte_string == empty_string); + EXPECT_FALSE(byte_string == deleted_string); + EXPECT_FALSE(null_string == byte_string); + EXPECT_FALSE(empty_string == byte_string); + EXPECT_FALSE(deleted_string == byte_string); + + ByteString byte_string_same1("hello"); + EXPECT_TRUE(byte_string == byte_string_same1); + EXPECT_TRUE(byte_string_same1 == byte_string); + + ByteString byte_string_same2(byte_string); + EXPECT_TRUE(byte_string == byte_string_same2); + EXPECT_TRUE(byte_string_same2 == byte_string); + + ByteString byte_string1("he"); + ByteString byte_string2("hellp"); + ByteString byte_string3("hellod"); + EXPECT_FALSE(byte_string == byte_string1); + EXPECT_FALSE(byte_string == byte_string2); + EXPECT_FALSE(byte_string == byte_string3); + EXPECT_FALSE(byte_string1 == byte_string); + EXPECT_FALSE(byte_string2 == byte_string); + EXPECT_FALSE(byte_string3 == byte_string); + + ByteStringView null_string_c; + ByteStringView empty_string_c(""); + EXPECT_TRUE(null_string == null_string_c); + EXPECT_TRUE(null_string == empty_string_c); + EXPECT_TRUE(empty_string == null_string_c); + EXPECT_TRUE(empty_string == empty_string_c); + EXPECT_TRUE(deleted_string == null_string_c); + EXPECT_TRUE(deleted_string == empty_string_c); + EXPECT_TRUE(null_string_c == null_string); + EXPECT_TRUE(empty_string_c == null_string); + EXPECT_TRUE(null_string_c == empty_string); + EXPECT_TRUE(empty_string_c == empty_string); + EXPECT_TRUE(null_string_c == deleted_string); + EXPECT_TRUE(empty_string_c == deleted_string); + + ByteStringView byte_string_c_same1("hello"); + EXPECT_TRUE(byte_string == byte_string_c_same1); + EXPECT_TRUE(byte_string_c_same1 == byte_string); + + ByteStringView byte_string_c1("he"); + ByteStringView byte_string_c2("hellp"); + ByteStringView byte_string_c3("hellod"); + EXPECT_FALSE(byte_string == byte_string_c1); + EXPECT_FALSE(byte_string == byte_string_c2); + EXPECT_FALSE(byte_string == byte_string_c3); + EXPECT_FALSE(byte_string_c1 == byte_string); + EXPECT_FALSE(byte_string_c2 == byte_string); + EXPECT_FALSE(byte_string_c3 == byte_string); + + const char* c_null_string = nullptr; + const char* c_empty_string = ""; + EXPECT_TRUE(null_string == c_null_string); + EXPECT_TRUE(null_string == c_empty_string); + EXPECT_TRUE(empty_string == c_null_string); + EXPECT_TRUE(empty_string == c_empty_string); + EXPECT_TRUE(deleted_string == c_null_string); + EXPECT_TRUE(deleted_string == c_empty_string); + EXPECT_TRUE(c_null_string == null_string); + EXPECT_TRUE(c_empty_string == null_string); + EXPECT_TRUE(c_null_string == empty_string); + EXPECT_TRUE(c_empty_string == empty_string); + EXPECT_TRUE(c_null_string == deleted_string); + EXPECT_TRUE(c_empty_string == deleted_string); + + const char* c_string_same1 = "hello"; + EXPECT_TRUE(byte_string == c_string_same1); + EXPECT_TRUE(c_string_same1 == byte_string); + + const char* c_string1 = "he"; + const char* c_string2 = "hellp"; + const char* c_string3 = "hellod"; + EXPECT_FALSE(byte_string == c_string1); + EXPECT_FALSE(byte_string == c_string2); + EXPECT_FALSE(byte_string == c_string3); + EXPECT_FALSE(c_string1 == byte_string); + EXPECT_FALSE(c_string2 == byte_string); + EXPECT_FALSE(c_string3 == byte_string); +} + +TEST(ByteString, OperatorNE) { + ByteString null_string; + EXPECT_FALSE(null_string != null_string); + + ByteString empty_string(""); + EXPECT_FALSE(empty_string != empty_string); + EXPECT_FALSE(empty_string != null_string); + EXPECT_FALSE(null_string != empty_string); + + ByteString deleted_string("hello"); + deleted_string.Delete(0, 5); + EXPECT_FALSE(deleted_string != deleted_string); + EXPECT_FALSE(deleted_string != null_string); + EXPECT_FALSE(deleted_string != empty_string); + EXPECT_FALSE(deleted_string != deleted_string); + EXPECT_FALSE(null_string != deleted_string); + EXPECT_FALSE(empty_string != deleted_string); + EXPECT_FALSE(deleted_string != deleted_string); + + ByteString byte_string("hello"); + EXPECT_FALSE(byte_string != byte_string); + EXPECT_TRUE(byte_string != null_string); + EXPECT_TRUE(byte_string != empty_string); + EXPECT_TRUE(byte_string != deleted_string); + EXPECT_TRUE(null_string != byte_string); + EXPECT_TRUE(empty_string != byte_string); + EXPECT_TRUE(deleted_string != byte_string); + + ByteString byte_string_same1("hello"); + EXPECT_FALSE(byte_string != byte_string_same1); + EXPECT_FALSE(byte_string_same1 != byte_string); + + ByteString byte_string_same2(byte_string); + EXPECT_FALSE(byte_string != byte_string_same2); + EXPECT_FALSE(byte_string_same2 != byte_string); + + ByteString byte_string1("he"); + ByteString byte_string2("hellp"); + ByteString byte_string3("hellod"); + EXPECT_TRUE(byte_string != byte_string1); + EXPECT_TRUE(byte_string != byte_string2); + EXPECT_TRUE(byte_string != byte_string3); + EXPECT_TRUE(byte_string1 != byte_string); + EXPECT_TRUE(byte_string2 != byte_string); + EXPECT_TRUE(byte_string3 != byte_string); + + ByteStringView null_string_c; + ByteStringView empty_string_c(""); + EXPECT_FALSE(null_string != null_string_c); + EXPECT_FALSE(null_string != empty_string_c); + EXPECT_FALSE(empty_string != null_string_c); + EXPECT_FALSE(empty_string != empty_string_c); + EXPECT_FALSE(null_string_c != null_string); + EXPECT_FALSE(empty_string_c != null_string); + EXPECT_FALSE(null_string_c != empty_string); + EXPECT_FALSE(empty_string_c != empty_string); + + ByteStringView byte_string_c_same1("hello"); + EXPECT_FALSE(byte_string != byte_string_c_same1); + EXPECT_FALSE(byte_string_c_same1 != byte_string); + + ByteStringView byte_string_c1("he"); + ByteStringView byte_string_c2("hellp"); + ByteStringView byte_string_c3("hellod"); + EXPECT_TRUE(byte_string != byte_string_c1); + EXPECT_TRUE(byte_string != byte_string_c2); + EXPECT_TRUE(byte_string != byte_string_c3); + EXPECT_TRUE(byte_string_c1 != byte_string); + EXPECT_TRUE(byte_string_c2 != byte_string); + EXPECT_TRUE(byte_string_c3 != byte_string); + + const char* c_null_string = nullptr; + const char* c_empty_string = ""; + EXPECT_FALSE(null_string != c_null_string); + EXPECT_FALSE(null_string != c_empty_string); + EXPECT_FALSE(empty_string != c_null_string); + EXPECT_FALSE(empty_string != c_empty_string); + EXPECT_FALSE(deleted_string != c_null_string); + EXPECT_FALSE(deleted_string != c_empty_string); + EXPECT_FALSE(c_null_string != null_string); + EXPECT_FALSE(c_empty_string != null_string); + EXPECT_FALSE(c_null_string != empty_string); + EXPECT_FALSE(c_empty_string != empty_string); + EXPECT_FALSE(c_null_string != deleted_string); + EXPECT_FALSE(c_empty_string != deleted_string); + + const char* c_string_same1 = "hello"; + EXPECT_FALSE(byte_string != c_string_same1); + EXPECT_FALSE(c_string_same1 != byte_string); + + const char* c_string1 = "he"; + const char* c_string2 = "hellp"; + const char* c_string3 = "hellod"; + EXPECT_TRUE(byte_string != c_string1); + EXPECT_TRUE(byte_string != c_string2); + EXPECT_TRUE(byte_string != c_string3); + EXPECT_TRUE(c_string1 != byte_string); + EXPECT_TRUE(c_string2 != byte_string); + EXPECT_TRUE(c_string3 != byte_string); +} + +TEST(ByteStringView, Null) { + ByteStringView null_string; + EXPECT_FALSE(null_string.raw_str()); + EXPECT_EQ(0u, null_string.GetLength()); + EXPECT_TRUE(null_string.IsEmpty()); + + ByteStringView another_null_string; + EXPECT_EQ(null_string, another_null_string); + + ByteStringView copied_null_string(null_string); + EXPECT_FALSE(copied_null_string.raw_str()); + EXPECT_EQ(0u, copied_null_string.GetLength()); + EXPECT_TRUE(copied_null_string.IsEmpty()); + EXPECT_EQ(null_string, copied_null_string); + + ByteStringView empty_string(""); // Pointer to NUL, not NULL pointer. + EXPECT_TRUE(empty_string.raw_str()); + EXPECT_EQ(0u, empty_string.GetLength()); + EXPECT_TRUE(empty_string.IsEmpty()); + EXPECT_EQ(null_string, empty_string); + + ByteStringView assigned_null_string("initially not nullptr"); + assigned_null_string = null_string; + EXPECT_FALSE(assigned_null_string.raw_str()); + EXPECT_EQ(0u, assigned_null_string.GetLength()); + EXPECT_TRUE(assigned_null_string.IsEmpty()); + EXPECT_EQ(null_string, assigned_null_string); + + ByteStringView assigned_nullptr_string("initially not nullptr"); + assigned_nullptr_string = nullptr; + EXPECT_FALSE(assigned_nullptr_string.raw_str()); + EXPECT_EQ(0u, assigned_nullptr_string.GetLength()); + EXPECT_TRUE(assigned_nullptr_string.IsEmpty()); + EXPECT_EQ(null_string, assigned_nullptr_string); + + ByteStringView non_null_string("a"); + EXPECT_NE(null_string, non_null_string); +} + +TEST(ByteString, Concat) { + ByteString fred; + fred.Concat("FRED", 4); + EXPECT_EQ("FRED", fred); + + fred.Concat("DY", 2); + EXPECT_EQ("FREDDY", fred); + + fred.Delete(3, 3); + EXPECT_EQ("FRE", fred); + + fred.Concat("D", 1); + EXPECT_EQ("FRED", fred); + + ByteString copy = fred; + fred.Concat("DY", 2); + EXPECT_EQ("FREDDY", fred); + EXPECT_EQ("FRED", copy); +} + +TEST(ByteString, Remove) { + ByteString freed("FREED"); + freed.Remove('E'); + EXPECT_EQ("FRD", freed); + freed.Remove('F'); + EXPECT_EQ("RD", freed); + freed.Remove('D'); + EXPECT_EQ("R", freed); + freed.Remove('X'); + EXPECT_EQ("R", freed); + freed.Remove('R'); + EXPECT_EQ("", freed); + + ByteString empty; + empty.Remove('X'); + EXPECT_EQ("", empty); +} + +TEST(ByteString, RemoveCopies) { + ByteString freed("FREED"); + const char* old_buffer = freed.c_str(); + + // No change with single reference - no copy. + freed.Remove('Q'); + EXPECT_EQ("FREED", freed); + EXPECT_EQ(old_buffer, freed.c_str()); + + // Change with single reference - no copy. + freed.Remove('E'); + EXPECT_EQ("FRD", freed); + EXPECT_EQ(old_buffer, freed.c_str()); + + // No change with multiple references - no copy. + ByteString shared(freed); + freed.Remove('Q'); + EXPECT_EQ("FRD", freed); + EXPECT_EQ(old_buffer, freed.c_str()); + EXPECT_EQ(old_buffer, shared.c_str()); + + // Change with multiple references -- must copy. + freed.Remove('D'); + EXPECT_EQ("FR", freed); + EXPECT_NE(old_buffer, freed.c_str()); + EXPECT_EQ("FRD", shared); + EXPECT_EQ(old_buffer, shared.c_str()); +} + +TEST(ByteString, Replace) { + ByteString fred("FRED"); + fred.Replace("FR", "BL"); + EXPECT_EQ("BLED", fred); + fred.Replace("D", "DDY"); + EXPECT_EQ("BLEDDY", fred); + fred.Replace("LEDD", ""); + EXPECT_EQ("BY", fred); + fred.Replace("X", "CLAMS"); + EXPECT_EQ("BY", fred); + fred.Replace("BY", "HI"); + EXPECT_EQ("HI", fred); + fred.Replace("", "CLAMS"); + EXPECT_EQ("HI", fred); + fred.Replace("HI", ""); + EXPECT_EQ("", fred); +} + +TEST(ByteString, Insert) { + ByteString fred("FRED"); + EXPECT_EQ(5u, fred.Insert(0, 'S')); + EXPECT_EQ("SFRED", fred); + EXPECT_EQ(6u, fred.Insert(1, 'T')); + EXPECT_EQ("STFRED", fred); + EXPECT_EQ(7u, fred.Insert(4, 'U')); + EXPECT_EQ("STFRUED", fred); + EXPECT_EQ(8u, fred.Insert(7, 'V')); + EXPECT_EQ("STFRUEDV", fred); + EXPECT_EQ(8u, fred.Insert(12, 'P')); + EXPECT_EQ("STFRUEDV", fred); + { + ByteString empty; + EXPECT_EQ(1u, empty.Insert(0, 'X')); + EXPECT_EQ("X", empty); + } + { + ByteString empty; + EXPECT_EQ(0u, empty.Insert(5, 'X')); + EXPECT_NE("X", empty); + } +} + +TEST(ByteString, InsertAtFrontAndInsertAtBack) { + { + ByteString empty; + EXPECT_EQ(1u, empty.InsertAtFront('D')); + EXPECT_EQ("D", empty); + EXPECT_EQ(2u, empty.InsertAtFront('E')); + EXPECT_EQ("ED", empty); + EXPECT_EQ(3u, empty.InsertAtFront('R')); + EXPECT_EQ("RED", empty); + EXPECT_EQ(4u, empty.InsertAtFront('F')); + EXPECT_EQ("FRED", empty); + } + { + ByteString empty; + EXPECT_EQ(1u, empty.InsertAtBack('F')); + EXPECT_EQ("F", empty); + EXPECT_EQ(2u, empty.InsertAtBack('R')); + EXPECT_EQ("FR", empty); + EXPECT_EQ(3u, empty.InsertAtBack('E')); + EXPECT_EQ("FRE", empty); + EXPECT_EQ(4u, empty.InsertAtBack('D')); + EXPECT_EQ("FRED", empty); + } + { + ByteString empty; + EXPECT_EQ(1u, empty.InsertAtBack('E')); + EXPECT_EQ("E", empty); + EXPECT_EQ(2u, empty.InsertAtFront('R')); + EXPECT_EQ("RE", empty); + EXPECT_EQ(3u, empty.InsertAtBack('D')); + EXPECT_EQ("RED", empty); + EXPECT_EQ(4u, empty.InsertAtFront('F')); + EXPECT_EQ("FRED", empty); + } +} + +TEST(ByteString, Delete) { + ByteString fred("FRED"); + EXPECT_EQ(4u, fred.Delete(0, 0)); + EXPECT_EQ("FRED", fred); + EXPECT_EQ(2u, fred.Delete(0, 2)); + EXPECT_EQ("ED", fred); + EXPECT_EQ(1u, fred.Delete(1)); + EXPECT_EQ("E", fred); + EXPECT_EQ(0u, fred.Delete(0)); + EXPECT_EQ("", fred); + EXPECT_EQ(0u, fred.Delete(0)); + EXPECT_EQ("", fred); + + ByteString empty; + EXPECT_EQ(0u, empty.Delete(0)); + EXPECT_EQ("", empty); + EXPECT_EQ(0u, empty.Delete(1)); + EXPECT_EQ("", empty); +} + +TEST(ByteString, Mid) { + ByteString fred("FRED"); + EXPECT_EQ("", fred.Mid(0, 0)); + EXPECT_EQ("", fred.Mid(3, 0)); + EXPECT_EQ("FRED", fred.Mid(0, 4)); + EXPECT_EQ("RED", fred.Mid(1, 3)); + EXPECT_EQ("ED", fred.Mid(2, 2)); + EXPECT_EQ("D", fred.Mid(3, 1)); + EXPECT_EQ("F", fred.Mid(0, 1)); + EXPECT_EQ("R", fred.Mid(1, 1)); + EXPECT_EQ("E", fred.Mid(2, 1)); + EXPECT_EQ("D", fred.Mid(3, 1)); + EXPECT_EQ("FR", fred.Mid(0, 2)); + EXPECT_EQ("FRED", fred.Mid(0, 4)); + EXPECT_EQ("", fred.Mid(0, 10)); + + EXPECT_EQ("RED", fred.Mid(1, 3)); + EXPECT_EQ("", fred.Mid(4, 1)); + + ByteString empty; + EXPECT_EQ("", empty.Mid(0, 0)); +} + +TEST(ByteString, Left) { + ByteString fred("FRED"); + EXPECT_EQ("", fred.Left(0)); + EXPECT_EQ("F", fred.Left(1)); + EXPECT_EQ("FR", fred.Left(2)); + EXPECT_EQ("FRE", fred.Left(3)); + EXPECT_EQ("FRED", fred.Left(4)); + + EXPECT_EQ("", fred.Left(5)); + + ByteString empty; + EXPECT_EQ("", empty.Left(0)); + EXPECT_EQ("", empty.Left(1)); +} + +TEST(ByteString, Right) { + ByteString fred("FRED"); + EXPECT_EQ("", fred.Right(0)); + EXPECT_EQ("D", fred.Right(1)); + EXPECT_EQ("ED", fred.Right(2)); + EXPECT_EQ("RED", fred.Right(3)); + EXPECT_EQ("FRED", fred.Right(4)); + + EXPECT_EQ("", fred.Right(5)); + + ByteString empty; + EXPECT_EQ("", empty.Right(0)); + EXPECT_EQ("", empty.Right(1)); +} + +TEST(ByteString, Find) { + ByteString null_string; + EXPECT_FALSE(null_string.Find('a').has_value()); + EXPECT_FALSE(null_string.Find('\0').has_value()); + + ByteString empty_string(""); + EXPECT_FALSE(empty_string.Find('a').has_value()); + EXPECT_FALSE(empty_string.Find('\0').has_value()); + + pdfium::Optional<FX_STRSIZE> result; + ByteString single_string("a"); + result = single_string.Find('a'); + ASSERT_TRUE(result.has_value()); + EXPECT_EQ(0u, result.value()); + EXPECT_FALSE(single_string.Find('b').has_value()); + EXPECT_FALSE(single_string.Find('\0').has_value()); + + ByteString longer_string("abccc"); + result = longer_string.Find('a'); + ASSERT_TRUE(result.has_value()); + EXPECT_EQ(0u, result.value()); + result = longer_string.Find('c'); + ASSERT_TRUE(result.has_value()); + EXPECT_EQ(2u, result.value()); + result = longer_string.Find('c', 3); + ASSERT_TRUE(result.has_value()); + EXPECT_EQ(3u, result.value()); + EXPECT_FALSE(longer_string.Find('d').has_value()); + EXPECT_FALSE(longer_string.Find('\0').has_value()); + + result = longer_string.Find("ab"); + ASSERT_TRUE(result.has_value()); + EXPECT_EQ(0u, result.value()); + result = longer_string.Find("ccc"); + ASSERT_TRUE(result.has_value()); + EXPECT_EQ(2u, result.value()); + result = longer_string.Find("cc", 3); + ASSERT_TRUE(result.has_value()); + EXPECT_EQ(3u, result.value()); + EXPECT_FALSE(longer_string.Find("d").has_value()); + + ByteString hibyte_string( + "ab\x8c" + "def"); + result = hibyte_string.Find('\x8c'); + ASSERT_TRUE(result.has_value()); + EXPECT_EQ(2u, result.value()); +} + +TEST(ByteString, ReverseFind) { + ByteString null_string; + EXPECT_FALSE(null_string.ReverseFind('a').has_value()); + EXPECT_FALSE(null_string.ReverseFind('\0').has_value()); + + ByteString empty_string(""); + EXPECT_FALSE(empty_string.ReverseFind('a').has_value()); + EXPECT_FALSE(empty_string.ReverseFind('\0').has_value()); + + pdfium::Optional<FX_STRSIZE> result; + ByteString single_string("a"); + result = single_string.ReverseFind('a'); + ASSERT_TRUE(result.has_value()); + EXPECT_EQ(0u, result.value()); + EXPECT_FALSE(single_string.ReverseFind('b').has_value()); + EXPECT_FALSE(single_string.ReverseFind('\0').has_value()); + + ByteString longer_string("abccc"); + result = longer_string.ReverseFind('a'); + ASSERT_TRUE(result.has_value()); + EXPECT_EQ(0u, result.value()); + result = longer_string.ReverseFind('c'); + ASSERT_TRUE(result.has_value()); + EXPECT_EQ(4u, result.value()); + EXPECT_FALSE(longer_string.ReverseFind('\0').has_value()); + + ByteString hibyte_string( + "ab\x8c" + "def"); + result = hibyte_string.ReverseFind('\x8c'); + ASSERT_TRUE(result.has_value()); + EXPECT_EQ(2u, result.value()); +} + +TEST(ByteString, UpperLower) { + ByteString fred("F-Re.42D"); + fred.MakeLower(); + EXPECT_EQ("f-re.42d", fred); + fred.MakeUpper(); + EXPECT_EQ("F-RE.42D", fred); + + ByteString empty; + empty.MakeLower(); + EXPECT_EQ("", empty); + empty.MakeUpper(); + EXPECT_EQ("", empty); +} + +TEST(ByteString, TrimRight) { + ByteString fred(" FRED "); + fred.TrimRight(); + EXPECT_EQ(" FRED", fred); + fred.TrimRight('E'); + EXPECT_EQ(" FRED", fred); + fred.TrimRight('D'); + EXPECT_EQ(" FRE", fred); + fred.TrimRight("ERP"); + EXPECT_EQ(" F", fred); + + ByteString blank(" "); + blank.TrimRight("ERP"); + EXPECT_EQ(" ", blank); + blank.TrimRight('E'); + EXPECT_EQ(" ", blank); + blank.TrimRight(); + EXPECT_EQ("", blank); + + ByteString empty; + empty.TrimRight("ERP"); + EXPECT_EQ("", empty); + empty.TrimRight('E'); + EXPECT_EQ("", empty); + empty.TrimRight(); + EXPECT_EQ("", empty); +} + +TEST(ByteString, TrimRightCopies) { + { + // With a single reference, no copy takes place. + ByteString fred(" FRED "); + const char* old_buffer = fred.c_str(); + fred.TrimRight(); + EXPECT_EQ(" FRED", fred); + EXPECT_EQ(old_buffer, fred.c_str()); + } + { + // With multiple references, we must copy. + ByteString fred(" FRED "); + ByteString other_fred = fred; + const char* old_buffer = fred.c_str(); + fred.TrimRight(); + EXPECT_EQ(" FRED", fred); + EXPECT_EQ(" FRED ", other_fred); + EXPECT_NE(old_buffer, fred.c_str()); + } + { + // With multiple references, but no modifications, no copy. + ByteString fred("FRED"); + ByteString other_fred = fred; + const char* old_buffer = fred.c_str(); + fred.TrimRight(); + EXPECT_EQ("FRED", fred); + EXPECT_EQ("FRED", other_fred); + EXPECT_EQ(old_buffer, fred.c_str()); + } +} + +TEST(ByteString, TrimLeft) { + ByteString fred(" FRED "); + fred.TrimLeft(); + EXPECT_EQ("FRED ", fred); + fred.TrimLeft('E'); + EXPECT_EQ("FRED ", fred); + fred.TrimLeft('F'); + EXPECT_EQ("RED ", fred); + fred.TrimLeft("ERP"); + EXPECT_EQ("D ", fred); + + ByteString blank(" "); + blank.TrimLeft("ERP"); + EXPECT_EQ(" ", blank); + blank.TrimLeft('E'); + EXPECT_EQ(" ", blank); + blank.TrimLeft(); + EXPECT_EQ("", blank); + + ByteString empty; + empty.TrimLeft("ERP"); + EXPECT_EQ("", empty); + empty.TrimLeft('E'); + EXPECT_EQ("", empty); + empty.TrimLeft(); + EXPECT_EQ("", empty); +} + +TEST(ByteString, TrimLeftCopies) { + { + // With a single reference, no copy takes place. + ByteString fred(" FRED "); + const char* old_buffer = fred.c_str(); + fred.TrimLeft(); + EXPECT_EQ("FRED ", fred); + EXPECT_EQ(old_buffer, fred.c_str()); + } + { + // With multiple references, we must copy. + ByteString fred(" FRED "); + ByteString other_fred = fred; + const char* old_buffer = fred.c_str(); + fred.TrimLeft(); + EXPECT_EQ("FRED ", fred); + EXPECT_EQ(" FRED ", other_fred); + EXPECT_NE(old_buffer, fred.c_str()); + } + { + // With multiple references, but no modifications, no copy. + ByteString fred("FRED"); + ByteString other_fred = fred; + const char* old_buffer = fred.c_str(); + fred.TrimLeft(); + EXPECT_EQ("FRED", fred); + EXPECT_EQ("FRED", other_fred); + EXPECT_EQ(old_buffer, fred.c_str()); + } +} + +TEST(ByteString, Reserve) { + { + ByteString str; + str.Reserve(6); + const char* old_buffer = str.c_str(); + str += "ABCDEF"; + EXPECT_EQ(old_buffer, str.c_str()); + str += "Blah Blah Blah Blah Blah Blah"; + EXPECT_NE(old_buffer, str.c_str()); + } + { + ByteString str("A"); + str.Reserve(6); + const char* old_buffer = str.c_str(); + str += "BCDEF"; + EXPECT_EQ(old_buffer, str.c_str()); + str += "Blah Blah Blah Blah Blah Blah"; + EXPECT_NE(old_buffer, str.c_str()); + } +} + +TEST(ByteString, GetBuffer) { + { + ByteString str; + char* buffer = str.GetBuffer(12); + // NOLINTNEXTLINE(runtime/printf) + strcpy(buffer, "clams"); + str.ReleaseBuffer(str.GetStringLength()); + EXPECT_EQ("clams", str); + } + { + ByteString str("cl"); + char* buffer = str.GetBuffer(12); + // NOLINTNEXTLINE(runtime/printf) + strcpy(buffer + 2, "ams"); + str.ReleaseBuffer(str.GetStringLength()); + EXPECT_EQ("clams", str); + } +} + +TEST(ByteString, ReleaseBuffer) { + { + ByteString str; + str.Reserve(12); + str += "clams"; + const char* old_buffer = str.c_str(); + str.ReleaseBuffer(4); + EXPECT_EQ(old_buffer, str.c_str()); + EXPECT_EQ("clam", str); + } + { + ByteString str("c"); + str.Reserve(12); + str += "lams"; + const char* old_buffer = str.c_str(); + str.ReleaseBuffer(4); + EXPECT_EQ(old_buffer, str.c_str()); + EXPECT_EQ("clam", str); + } + { + ByteString str; + str.Reserve(200); + str += "clams"; + const char* old_buffer = str.c_str(); + str.ReleaseBuffer(4); + EXPECT_NE(old_buffer, str.c_str()); + EXPECT_EQ("clam", str); + } + { + ByteString str("c"); + str.Reserve(200); + str += "lams"; + const char* old_buffer = str.c_str(); + str.ReleaseBuffer(4); + EXPECT_NE(old_buffer, str.c_str()); + EXPECT_EQ("clam", str); + } +} + +TEST(ByteString, EmptyReverseIterator) { + ByteString empty; + auto iter = empty.rbegin(); + EXPECT_TRUE(iter == empty.rend()); + EXPECT_FALSE(iter != empty.rend()); + EXPECT_FALSE(iter < empty.rend()); +} + +TEST(ByteString, OneCharReverseIterator) { + ByteString one_str("a"); + auto iter = one_str.rbegin(); + EXPECT_FALSE(iter == one_str.rend()); + EXPECT_TRUE(iter != one_str.rend()); + EXPECT_TRUE(iter < one_str.rend()); + + char ch = *iter++; + EXPECT_EQ('a', ch); + EXPECT_TRUE(iter == one_str.rend()); + EXPECT_FALSE(iter != one_str.rend()); + EXPECT_FALSE(iter < one_str.rend()); +} + +TEST(ByteString, MultiCharReverseIterator) { + ByteString multi_str("abcd"); + auto iter = multi_str.rbegin(); + EXPECT_FALSE(iter == multi_str.rend()); + + char ch = *iter++; + EXPECT_EQ('d', ch); + EXPECT_EQ('c', *iter); + EXPECT_FALSE(iter == multi_str.rend()); + + ch = *(++iter); + EXPECT_EQ('b', ch); + EXPECT_EQ('b', *iter); + EXPECT_FALSE(iter == multi_str.rend()); + + ch = *iter++; + EXPECT_EQ('b', ch); + EXPECT_EQ('a', *iter); + EXPECT_FALSE(iter == multi_str.rend()); + + ch = *iter++; + EXPECT_EQ('a', ch); + EXPECT_TRUE(iter == multi_str.rend()); + + ch = *(--iter); + EXPECT_EQ('a', ch); + EXPECT_EQ('a', *iter); + EXPECT_FALSE(iter == multi_str.rend()); + + ch = *iter--; + EXPECT_EQ('a', ch); + EXPECT_EQ('b', *iter); + EXPECT_FALSE(iter == multi_str.rend()); + + ch = *iter--; + EXPECT_EQ('b', ch); + EXPECT_EQ('c', *iter); + EXPECT_FALSE(iter == multi_str.rend()); + + ch = *(--iter); + EXPECT_EQ('d', ch); + EXPECT_EQ('d', *iter); + EXPECT_TRUE(iter == multi_str.rbegin()); +} + +TEST(ByteStringView, NotNull) { + ByteStringView string3("abc"); + ByteStringView string6("abcdef"); + ByteStringView alternate_string3("abcdef", 3); + ByteStringView embedded_nul_string7("abc\0def", 7); + ByteStringView illegal_string7("abcdef", 7); + + EXPECT_EQ(3u, string3.GetLength()); + EXPECT_EQ(6u, string6.GetLength()); + EXPECT_EQ(3u, alternate_string3.GetLength()); + EXPECT_EQ(7u, embedded_nul_string7.GetLength()); + EXPECT_EQ(7u, illegal_string7.GetLength()); + + EXPECT_NE(string3, string6); + EXPECT_EQ(string3, alternate_string3); + EXPECT_NE(string3, embedded_nul_string7); + EXPECT_NE(string3, illegal_string7); + EXPECT_NE(string6, alternate_string3); + EXPECT_NE(string6, embedded_nul_string7); + EXPECT_NE(string6, illegal_string7); + EXPECT_NE(alternate_string3, embedded_nul_string7); + EXPECT_NE(alternate_string3, illegal_string7); + EXPECT_NE(embedded_nul_string7, illegal_string7); + + ByteStringView copied_string3(string3); + ByteStringView copied_alternate_string3(alternate_string3); + ByteStringView copied_embedded_nul_string7(embedded_nul_string7); + + EXPECT_EQ(string3, copied_string3); + EXPECT_EQ(alternate_string3, copied_alternate_string3); + EXPECT_EQ(embedded_nul_string7, copied_embedded_nul_string7); + + ByteStringView assigned_string3("intially something else"); + ByteStringView assigned_alternate_string3("initally something else"); + ByteStringView assigned_ptr_string3("initially something else"); + ByteStringView assigned_embedded_nul_string7("initially something else"); + + assigned_string3 = string3; + assigned_alternate_string3 = alternate_string3; + assigned_ptr_string3 = "abc"; + assigned_embedded_nul_string7 = embedded_nul_string7; + EXPECT_EQ(string3, assigned_string3); + EXPECT_EQ(alternate_string3, assigned_alternate_string3); + EXPECT_EQ(alternate_string3, assigned_ptr_string3); + EXPECT_EQ(embedded_nul_string7, assigned_embedded_nul_string7); +} + +TEST(ByteStringView, FromChar) { + ByteStringView null_string; + ByteStringView lower_a_string("a"); + + // Must have lvalues that outlive the corresponding ByteStringC. + char nul = '\0'; + char lower_a = 'a'; + ByteStringView nul_string_from_char(nul); + ByteStringView lower_a_string_from_char(lower_a); + + // Pointer to nul, not nullptr ptr, hence length 1 ... + EXPECT_EQ(1u, nul_string_from_char.GetLength()); + EXPECT_NE(null_string, nul_string_from_char); + + EXPECT_EQ(1u, lower_a_string_from_char.GetLength()); + EXPECT_EQ(lower_a_string, lower_a_string_from_char); + EXPECT_NE(nul_string_from_char, lower_a_string_from_char); + + ByteStringView longer_string("ab"); + EXPECT_NE(longer_string, lower_a_string_from_char); +} + +TEST(ByteStringView, FromVector) { + std::vector<uint8_t> null_vec; + ByteStringView null_string(null_vec); + EXPECT_EQ(0u, null_string.GetLength()); + + std::vector<uint8_t> lower_a_vec(10, static_cast<uint8_t>('a')); + ByteStringView lower_a_string(lower_a_vec); + EXPECT_EQ(static_cast<FX_STRSIZE>(10), lower_a_string.GetLength()); + EXPECT_EQ("aaaaaaaaaa", lower_a_string); + + std::vector<uint8_t> cleared_vec; + cleared_vec.push_back(42); + cleared_vec.pop_back(); + ByteStringView cleared_string(cleared_vec); + EXPECT_EQ(0u, cleared_string.GetLength()); + EXPECT_EQ(nullptr, cleared_string.raw_str()); +} + +TEST(ByteStringView, GetID) { + ByteStringView null_string; + EXPECT_EQ(0u, null_string.GetID()); + + ByteStringView empty_string(""); + EXPECT_EQ(0u, empty_string.GetID()); + + ByteStringView short_string("ab"); + EXPECT_EQ(FXBSTR_ID('a', 'b', 0, 0), short_string.GetID()); + + ByteStringView longer_string("abcdef"); + EXPECT_EQ(FXBSTR_ID('a', 'b', 'c', 'd'), longer_string.GetID()); +} + +TEST(ByteStringView, Find) { + ByteStringView null_string; + EXPECT_FALSE(null_string.Find('a').has_value()); + EXPECT_FALSE(null_string.Find('\0').has_value()); + + ByteStringView empty_string(""); + EXPECT_FALSE(empty_string.Find('a').has_value()); + EXPECT_FALSE(empty_string.Find('\0').has_value()); + + pdfium::Optional<FX_STRSIZE> result; + ByteStringView single_string("a"); + result = single_string.Find('a'); + ASSERT_TRUE(result.has_value()); + EXPECT_EQ(0u, result.value()); + EXPECT_FALSE(single_string.Find('b').has_value()); + EXPECT_FALSE(single_string.Find('\0').has_value()); + + ByteStringView longer_string("abccc"); + result = longer_string.Find('a'); + ASSERT_TRUE(result.has_value()); + EXPECT_EQ(0u, result.value()); + result = longer_string.Find('c'); + ASSERT_TRUE(result.has_value()); + EXPECT_EQ(2u, result.value()); + EXPECT_FALSE(longer_string.Find('d').has_value()); + EXPECT_FALSE(longer_string.Find('\0').has_value()); + + ByteStringView hibyte_string( + "ab\x8c" + "def"); + result = hibyte_string.Find('\x8c'); + ASSERT_TRUE(result.has_value()); + EXPECT_EQ(2u, result.value()); +} + +TEST(ByteStringView, Mid) { + ByteStringView null_string; + EXPECT_EQ(null_string, null_string.Mid(0, 1)); + EXPECT_EQ(null_string, null_string.Mid(1, 1)); + + ByteStringView empty_string(""); + EXPECT_EQ("", empty_string.Mid(0, 1)); + EXPECT_EQ("", empty_string.Mid(1, 1)); + + ByteStringView single_character("a"); + EXPECT_EQ("", single_character.Mid(0, 0)); + EXPECT_EQ(single_character, single_character.Mid(0, 1)); + EXPECT_EQ("", single_character.Mid(1, 0)); + EXPECT_EQ("", single_character.Mid(1, 1)); + + ByteStringView longer_string("abcdef"); + EXPECT_EQ(longer_string, longer_string.Mid(0, 6)); + EXPECT_EQ("", longer_string.Mid(0, 187)); + + ByteStringView leading_substring("ab"); + EXPECT_EQ(leading_substring, longer_string.Mid(0, 2)); + + ByteStringView middle_substring("bcde"); + EXPECT_EQ(middle_substring, longer_string.Mid(1, 4)); + + ByteStringView trailing_substring("ef"); + EXPECT_EQ(trailing_substring, longer_string.Mid(4, 2)); + EXPECT_EQ("", longer_string.Mid(4, 3)); +} + +TEST(ByteStringView, TrimmedRight) { + ByteStringView fred("FRED"); + EXPECT_EQ("FRED", fred.TrimmedRight('E')); + EXPECT_EQ("FRE", fred.TrimmedRight('D')); + ByteStringView fredd("FREDD"); + EXPECT_EQ("FRE", fred.TrimmedRight('D')); +} + +TEST(ByteStringView, ElementAccess) { + // ByteStringView includes the NUL terminator for non-empty strings. + ByteStringView abc("abc"); + EXPECT_EQ('a', static_cast<char>(abc[0])); + EXPECT_EQ('b', static_cast<char>(abc[1])); + EXPECT_EQ('c', static_cast<char>(abc[2])); +#ifndef NDEBUG + EXPECT_DEATH({ abc[3]; }, ".*"); +#endif +} + +TEST(ByteStringView, OperatorLT) { + ByteStringView empty; + ByteStringView a("a"); + ByteStringView abc("abc"); + ByteStringView def("def"); + + EXPECT_FALSE(empty < empty); + EXPECT_FALSE(a < a); + EXPECT_FALSE(abc < abc); + EXPECT_FALSE(def < def); + + EXPECT_TRUE(empty < a); + EXPECT_FALSE(a < empty); + + EXPECT_TRUE(empty < abc); + EXPECT_FALSE(abc < empty); + + EXPECT_TRUE(empty < def); + EXPECT_FALSE(def < empty); + + EXPECT_TRUE(a < abc); + EXPECT_FALSE(abc < a); + + EXPECT_TRUE(a < def); + EXPECT_FALSE(def < a); + + EXPECT_TRUE(abc < def); + EXPECT_FALSE(def < abc); +} + +TEST(ByteStringView, OperatorEQ) { + ByteStringView byte_string_c("hello"); + EXPECT_TRUE(byte_string_c == byte_string_c); + + ByteStringView byte_string_c_same1("hello"); + EXPECT_TRUE(byte_string_c == byte_string_c_same1); + EXPECT_TRUE(byte_string_c_same1 == byte_string_c); + + ByteStringView byte_string_c_same2(byte_string_c); + EXPECT_TRUE(byte_string_c == byte_string_c_same2); + EXPECT_TRUE(byte_string_c_same2 == byte_string_c); + + ByteStringView byte_string_c1("he"); + ByteStringView byte_string_c2("hellp"); + ByteStringView byte_string_c3("hellod"); + EXPECT_FALSE(byte_string_c == byte_string_c1); + EXPECT_FALSE(byte_string_c == byte_string_c2); + EXPECT_FALSE(byte_string_c == byte_string_c3); + EXPECT_FALSE(byte_string_c1 == byte_string_c); + EXPECT_FALSE(byte_string_c2 == byte_string_c); + EXPECT_FALSE(byte_string_c3 == byte_string_c); + + ByteString byte_string_same1("hello"); + EXPECT_TRUE(byte_string_c == byte_string_same1); + EXPECT_TRUE(byte_string_same1 == byte_string_c); + + ByteString byte_string1("he"); + ByteString byte_string2("hellp"); + ByteString byte_string3("hellod"); + EXPECT_FALSE(byte_string_c == byte_string1); + EXPECT_FALSE(byte_string_c == byte_string2); + EXPECT_FALSE(byte_string_c == byte_string3); + EXPECT_FALSE(byte_string1 == byte_string_c); + EXPECT_FALSE(byte_string2 == byte_string_c); + EXPECT_FALSE(byte_string3 == byte_string_c); + + const char* c_string_same1 = "hello"; + EXPECT_TRUE(byte_string_c == c_string_same1); + EXPECT_TRUE(c_string_same1 == byte_string_c); + + const char* c_string1 = "he"; + const char* c_string2 = "hellp"; + const char* c_string3 = "hellod"; + EXPECT_FALSE(byte_string_c == c_string1); + EXPECT_FALSE(byte_string_c == c_string2); + EXPECT_FALSE(byte_string_c == c_string3); + + EXPECT_FALSE(c_string1 == byte_string_c); + EXPECT_FALSE(c_string2 == byte_string_c); + EXPECT_FALSE(c_string3 == byte_string_c); +} + +TEST(ByteStringView, OperatorNE) { + ByteStringView byte_string_c("hello"); + EXPECT_FALSE(byte_string_c != byte_string_c); + + ByteStringView byte_string_c_same1("hello"); + EXPECT_FALSE(byte_string_c != byte_string_c_same1); + EXPECT_FALSE(byte_string_c_same1 != byte_string_c); + + ByteStringView byte_string_c_same2(byte_string_c); + EXPECT_FALSE(byte_string_c != byte_string_c_same2); + EXPECT_FALSE(byte_string_c_same2 != byte_string_c); + + ByteStringView byte_string_c1("he"); + ByteStringView byte_string_c2("hellp"); + ByteStringView byte_string_c3("hellod"); + EXPECT_TRUE(byte_string_c != byte_string_c1); + EXPECT_TRUE(byte_string_c != byte_string_c2); + EXPECT_TRUE(byte_string_c != byte_string_c3); + EXPECT_TRUE(byte_string_c1 != byte_string_c); + EXPECT_TRUE(byte_string_c2 != byte_string_c); + EXPECT_TRUE(byte_string_c3 != byte_string_c); + + ByteString byte_string_same1("hello"); + EXPECT_FALSE(byte_string_c != byte_string_same1); + EXPECT_FALSE(byte_string_same1 != byte_string_c); + + ByteString byte_string1("he"); + ByteString byte_string2("hellp"); + ByteString byte_string3("hellod"); + EXPECT_TRUE(byte_string_c != byte_string1); + EXPECT_TRUE(byte_string_c != byte_string2); + EXPECT_TRUE(byte_string_c != byte_string3); + EXPECT_TRUE(byte_string1 != byte_string_c); + EXPECT_TRUE(byte_string2 != byte_string_c); + EXPECT_TRUE(byte_string3 != byte_string_c); + + const char* c_string_same1 = "hello"; + EXPECT_FALSE(byte_string_c != c_string_same1); + EXPECT_FALSE(c_string_same1 != byte_string_c); + + const char* c_string1 = "he"; + const char* c_string2 = "hellp"; + const char* c_string3 = "hellod"; + EXPECT_TRUE(byte_string_c != c_string1); + EXPECT_TRUE(byte_string_c != c_string2); + EXPECT_TRUE(byte_string_c != c_string3); + + EXPECT_TRUE(c_string1 != byte_string_c); + EXPECT_TRUE(c_string2 != byte_string_c); + EXPECT_TRUE(c_string3 != byte_string_c); +} + +TEST(ByteStringView, NullIterator) { + ByteStringView null_str; + int32_t sum = 0; + bool any_present = false; + for (const auto& c : null_str) { + sum += c; // Avoid unused arg warnings. + any_present = true; + } + EXPECT_FALSE(any_present); + EXPECT_EQ(0, sum); +} + +TEST(ByteStringView, EmptyIterator) { + ByteStringView empty_str(""); + int32_t sum = 0; + bool any_present = false; + for (const auto& c : empty_str) { + any_present = true; + sum += c; // Avoid unused arg warnings. + } + EXPECT_FALSE(any_present); + EXPECT_EQ(0, sum); +} + +TEST(ByteStringView, OneCharIterator) { + ByteStringView one_str("a"); + int32_t sum = 0; + bool any_present = false; + for (const auto& c : one_str) { + any_present = true; + sum += c; // Avoid unused arg warnings. + } + EXPECT_TRUE(any_present); + EXPECT_EQ('a', sum); +} + +TEST(ByteStringView, MultiCharIterator) { + ByteStringView one_str("abc"); + int32_t sum = 0; + bool any_present = false; + for (const auto& c : one_str) { + any_present = true; + sum += c; // Avoid unused arg warnings. + } + EXPECT_TRUE(any_present); + EXPECT_EQ('a' + 'b' + 'c', sum); +} + +TEST(ByteStringView, EmptyReverseIterator) { + ByteStringView empty; + auto iter = empty.rbegin(); + EXPECT_TRUE(iter == empty.rend()); + EXPECT_FALSE(iter != empty.rend()); + EXPECT_FALSE(iter < empty.rend()); +} + +TEST(ByteStringView, OneCharReverseIterator) { + ByteStringView one_str("a"); + auto iter = one_str.rbegin(); + EXPECT_FALSE(iter == one_str.rend()); + EXPECT_TRUE(iter != one_str.rend()); + EXPECT_TRUE(iter < one_str.rend()); + + char ch = *iter++; + EXPECT_EQ('a', ch); + EXPECT_TRUE(iter == one_str.rend()); + EXPECT_FALSE(iter != one_str.rend()); + EXPECT_FALSE(iter < one_str.rend()); +} + +TEST(ByteStringView, MultiCharReverseIterator) { + ByteStringView multi_str("abcd"); + auto iter = multi_str.rbegin(); + EXPECT_FALSE(iter == multi_str.rend()); + + char ch = *iter++; + EXPECT_EQ('d', ch); + EXPECT_EQ('c', *iter); + EXPECT_FALSE(iter == multi_str.rend()); + + ch = *(++iter); + EXPECT_EQ('b', ch); + EXPECT_EQ('b', *iter); + EXPECT_FALSE(iter == multi_str.rend()); + + ch = *iter++; + EXPECT_EQ('b', ch); + EXPECT_EQ('a', *iter); + EXPECT_FALSE(iter == multi_str.rend()); + + ch = *iter++; + EXPECT_EQ('a', ch); + EXPECT_TRUE(iter == multi_str.rend()); + + ch = *(--iter); + EXPECT_EQ('a', ch); + EXPECT_EQ('a', *iter); + EXPECT_FALSE(iter == multi_str.rend()); + + ch = *iter--; + EXPECT_EQ('a', ch); + EXPECT_EQ('b', *iter); + EXPECT_FALSE(iter == multi_str.rend()); + + ch = *iter--; + EXPECT_EQ('b', ch); + EXPECT_EQ('c', *iter); + EXPECT_FALSE(iter == multi_str.rend()); + + ch = *(--iter); + EXPECT_EQ('d', ch); + EXPECT_EQ('d', *iter); + EXPECT_TRUE(iter == multi_str.rbegin()); +} + +TEST(ByteStringView, AnyAllNoneOf) { + ByteStringView str("aaaaaaaaaaaaaaaaab"); + EXPECT_FALSE(std::all_of(str.begin(), str.end(), + [](const char& c) { return c == 'a'; })); + + EXPECT_FALSE(std::none_of(str.begin(), str.end(), + [](const char& c) { return c == 'a'; })); + + EXPECT_TRUE(std::any_of(str.begin(), str.end(), + [](const char& c) { return c == 'a'; })); + + EXPECT_TRUE(pdfium::ContainsValue(str, 'a')); + EXPECT_TRUE(pdfium::ContainsValue(str, 'b')); + EXPECT_FALSE(pdfium::ContainsValue(str, 'z')); +} + +TEST(ByteString, FormatWidth) { + { + ByteString str; + str.Format("%5d", 1); + EXPECT_EQ(" 1", str); + } + + { + ByteString str; + str.Format("%d", 1); + EXPECT_EQ("1", str); + } + + { + ByteString str; + str.Format("%*d", 5, 1); + EXPECT_EQ(" 1", str); + } + + { + ByteString str; + str.Format("%-1d", 1); + EXPECT_EQ("1", str); + } + + { + ByteString str; + str.Format("%0d", 1); + EXPECT_EQ("1", str); + } +} + +TEST(ByteString, FormatPrecision) { + { + ByteString str; + str.Format("%.2f", 1.12345); + EXPECT_EQ("1.12", str); + } + + { + ByteString str; + str.Format("%.*f", 3, 1.12345); + EXPECT_EQ("1.123", str); + } + + { + ByteString str; + str.Format("%f", 1.12345); + EXPECT_EQ("1.123450", str); + } + + { + ByteString str; + str.Format("%-1f", 1.12345); + EXPECT_EQ("1.123450", str); + } + + { + ByteString str; + str.Format("%0f", 1.12345); + EXPECT_EQ("1.123450", str); + } +} + +TEST(ByteString, Empty) { + ByteString empty_str; + EXPECT_TRUE(empty_str.IsEmpty()); + EXPECT_EQ(0u, empty_str.GetLength()); + const char* cstr = empty_str.c_str(); + EXPECT_EQ(0u, FXSYS_strlen(cstr)); +} + +TEST(ByteString, InitializerList) { + ByteString many_str({"clams", " and ", "oysters"}); + EXPECT_EQ("clams and oysters", many_str); + many_str = {"fish", " and ", "chips", " and ", "soda"}; + EXPECT_EQ("fish and chips and soda", many_str); +} + +TEST(ByteString, NullIterator) { + ByteString null_str; + int32_t sum = 0; + bool any_present = false; + for (const auto& c : null_str) { + sum += c; // Avoid unused arg warnings. + any_present = true; + } + EXPECT_FALSE(any_present); + EXPECT_EQ(0, sum); +} + +TEST(ByteString, EmptyIterator) { + ByteString empty_str(""); + int32_t sum = 0; + bool any_present = false; + for (const auto& c : empty_str) { + any_present = true; + sum += c; // Avoid unused arg warnings. + } + EXPECT_FALSE(any_present); + EXPECT_EQ(0, sum); +} + +TEST(ByteString, OneCharIterator) { + ByteString one_str("a"); + int32_t sum = 0; + bool any_present = false; + for (const auto& c : one_str) { + any_present = true; + sum += c; // Avoid unused arg warnings. + } + EXPECT_TRUE(any_present); + EXPECT_EQ('a', sum); +} + +TEST(ByteString, MultiCharIterator) { + ByteString one_str("abc"); + int32_t sum = 0; + bool any_present = false; + for (const auto& c : one_str) { + any_present = true; + sum += c; // Avoid unused arg warnings. + } + EXPECT_TRUE(any_present); + EXPECT_EQ('a' + 'b' + 'c', sum); +} + +TEST(ByteString, AnyAllNoneOf) { + ByteString str("aaaaaaaaaaaaaaaaab"); + EXPECT_FALSE(std::all_of(str.begin(), str.end(), + [](const char& c) { return c == 'a'; })); + + EXPECT_FALSE(std::none_of(str.begin(), str.end(), + [](const char& c) { return c == 'a'; })); + + EXPECT_TRUE(std::any_of(str.begin(), str.end(), + [](const char& c) { return c == 'a'; })); + + EXPECT_TRUE(pdfium::ContainsValue(str, 'a')); + EXPECT_TRUE(pdfium::ContainsValue(str, 'b')); + EXPECT_FALSE(pdfium::ContainsValue(str, 'z')); +} + +TEST(CFX_BytrString, EqualNoCase) { + ByteString str("aaa"); + EXPECT_TRUE(str.EqualNoCase("aaa")); + EXPECT_TRUE(str.EqualNoCase("AAA")); + EXPECT_TRUE(str.EqualNoCase("aaA")); + EXPECT_TRUE(str.EqualNoCase("Aaa")); + EXPECT_FALSE(str.EqualNoCase("aab")); + EXPECT_FALSE(str.EqualNoCase("aaaa")); + EXPECT_FALSE(str.EqualNoCase("BBBB")); + EXPECT_FALSE(str.EqualNoCase("a")); + EXPECT_FALSE(str.EqualNoCase("")); +} + +TEST(ByteString, OStreamOverload) { + std::ostringstream stream; + + // Basic case, empty string + ByteString str; + stream << str; + EXPECT_EQ("", stream.str()); + + // Basic case, non-empty string + str = "def"; + stream.str(""); + stream << "abc" << str << "ghi"; + EXPECT_EQ("abcdefghi", stream.str()); + + // Changing the ByteString does not change the stream it was written to. + str = "123"; + EXPECT_EQ("abcdefghi", stream.str()); + + // Writing it again to the stream will use the latest value. + stream.str(""); + stream << "abc" << str << "ghi"; + EXPECT_EQ("abc123ghi", stream.str()); + + char stringWithNulls[]{'x', 'y', '\0', 'z'}; + + // Writing a ByteString with nulls and no specified length treats it as + // a C-style null-terminated string. + str = ByteString(stringWithNulls); + EXPECT_EQ(2u, str.GetLength()); + stream.str(""); + stream << str; + EXPECT_EQ(2u, stream.tellp()); + + // Writing a ByteString with nulls but specifying its length treats it as + // a C++-style string. + str = ByteString(stringWithNulls, 4); + EXPECT_EQ(4u, str.GetLength()); + stream.str(""); + stream << str; + EXPECT_EQ(4u, stream.tellp()); + + // << operators can be chained. + ByteString str1("abc"); + ByteString str2("def"); + stream.str(""); + stream << str1 << str2; + EXPECT_EQ("abcdef", stream.str()); +} + +TEST(ByteStringView, OStreamOverload) { + // Basic case, empty string + { + std::ostringstream stream; + ByteStringView str; + stream << str; + EXPECT_EQ("", stream.str()); + } + + // Basic case, non-empty string + { + std::ostringstream stream; + ByteStringView str("def"); + stream << "abc" << str << "ghi"; + EXPECT_EQ("abcdefghi", stream.str()); + } + + // Changing the ByteStringView does not change the stream it was written to. + { + std::ostringstream stream; + ByteStringView str("abc"); + stream << str; + str = "123"; + EXPECT_EQ("abc", stream.str()); + } + + // Writing it again to the stream will use the latest value. + { + std::ostringstream stream; + ByteStringView str("abc"); + stream << str; + stream.str(""); + str = "123"; + stream << str; + EXPECT_EQ("123", stream.str()); + } + + // Writing a ByteStringView with nulls and no specified length treats it as + // a C-style null-terminated string. + { + std::ostringstream stream; + char stringWithNulls[]{'x', 'y', '\0', 'z'}; + ByteStringView str(stringWithNulls); + EXPECT_EQ(2u, str.GetLength()); + stream << str; + EXPECT_EQ(2u, stream.tellp()); + str = ""; + } + + // Writing a ByteStringView with nulls but specifying its length treats it as + // a C++-style string. + { + std::ostringstream stream; + char stringWithNulls[]{'x', 'y', '\0', 'z'}; + ByteStringView str(stringWithNulls, 4); + EXPECT_EQ(4u, str.GetLength()); + stream << str; + EXPECT_EQ(4u, stream.tellp()); + str = ""; + } + + // << operators can be chained. + { + std::ostringstream stream; + ByteStringView str1("abc"); + ByteStringView str2("def"); + stream << str1 << str2; + EXPECT_EQ("abcdef", stream.str()); + } +} + +TEST(ByteString, FormatInteger) { + // Base case of 0. + EXPECT_EQ("0", ByteString::FormatInteger(0)); + + // Positive ordinary number. + EXPECT_EQ("123456", ByteString::FormatInteger(123456)); + + // Negative ordinary number. + EXPECT_EQ("-123456", ByteString::FormatInteger(-123456)); + + // int limits. + EXPECT_EQ("2147483647", ByteString::FormatInteger(INT_MAX)); + EXPECT_EQ("-2147483648", ByteString::FormatInteger(INT_MIN)); +} |