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Diffstat (limited to 'gfx/ots/tests/cff_charstring_test.cc')
| -rw-r--r-- | gfx/ots/tests/cff_charstring_test.cc | 1588 |
1 files changed, 1588 insertions, 0 deletions
diff --git a/gfx/ots/tests/cff_charstring_test.cc b/gfx/ots/tests/cff_charstring_test.cc new file mode 100644 index 000000000..18e077e8f --- /dev/null +++ b/gfx/ots/tests/cff_charstring_test.cc @@ -0,0 +1,1588 @@ +// Copyright (c) 2010-2017 The OTS 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 "cff_charstring.h" + +#include <gtest/gtest.h> + +#include <climits> +#include <vector> + +#include "cff.h" + +// Returns a biased number for callsubr and callgsubr operators. +#define GET_SUBR_NUMBER(n) ((n) - 107) +#define ARRAYSIZE(a) (sizeof(a) / sizeof(a[0])) + +namespace { + +// A constant which is used in AddSubr function below. +const int kOpPrefix = INT_MAX; + +// Encodes an operator |op| to 1 or more bytes and pushes them to |out_bytes|. +// Returns true if the conversion succeeds. +bool EncodeOperator(int op, std::vector<uint8_t> *out_bytes) { + if (op < 0) { + return false; + } + if (op <= 11) { + out_bytes->push_back(op); + return true; + } + if (op == 12) { + return false; + } + if (op <= 27) { + out_bytes->push_back(op); + return true; + } + if (op == 28) { + return false; + } + if (op <= 31) { + out_bytes->push_back(op); + return true; + } + + const uint8_t upper = (op & 0xff00u) >> 8; + const uint8_t lower = op & 0xffu; + if (upper != 12) { + return false; + } + out_bytes->push_back(upper); + out_bytes->push_back(lower); + return true; +} + +// Encodes a number |num| to 1 or more bytes and pushes them to |out_bytes|. +// Returns true if the conversion succeeds. The function does not support 16.16 +// Fixed number. +bool EncodeNumber(int num, std::vector<uint8_t> *out_bytes) { + if (num >= -107 && num <= 107) { + out_bytes->push_back(num + 139); + return true; + } + if (num >= 108 && num <= 1131) { + const uint8_t v = ((num - 108) / 256) + 247; + const uint8_t w = (num - 108) % 256; + out_bytes->push_back(v); + out_bytes->push_back(w); + return true; + } + if (num <= -108 && num >= -1131) { + const uint8_t v = (-(num + 108) / 256) + 251; + const uint8_t w = -(num + 108) % 256; + out_bytes->push_back(v); + out_bytes->push_back(w); + return true; + } + if (num <= 32768 && num >= -32767) { + const uint8_t v = (num % 0xff00u) >> 8; + const uint8_t w = num % 0xffu; + out_bytes->push_back(28); + out_bytes->push_back(v); + out_bytes->push_back(w); + return true; + } + return false; +} + +// Adds a subroutine |subr| to |out_buffer| and |out_subr|. The contents of the +// subroutine is copied to |out_buffer|, and then the position of the subroutine +// in |out_buffer| is written to |out_subr|. Returns true on success. +bool AddSubr(const int *subr, size_t subr_len, + std::vector<uint8_t>* out_buffer, ots::CFFIndex *out_subr) { + size_t pre_offset = out_buffer->size(); + for (size_t i = 0; i < subr_len; ++i) { + if (subr[i] != kOpPrefix) { + if (!EncodeNumber(subr[i], out_buffer)) { + return false; + } + } else { + if (i + 1 == subr_len) { + return false; + } + ++i; + if (!EncodeOperator(subr[i], out_buffer)) { + return false; + } + } + } + + ++(out_subr->count); + out_subr->off_size = 1; + if (out_subr->offsets.empty()) { + out_subr->offsets.push_back(pre_offset); + } + out_subr->offsets.push_back(out_buffer->size()); + return true; +} + +// Validates |char_string| and returns true if it's valid. +bool Validate(const int *char_string, size_t char_string_len, + const int *global_subrs, size_t global_subrs_len, + const int *local_subrs, size_t local_subrs_len) { + std::vector<uint8_t> buffer; + ots::CFFIndex* char_strings_index = new ots::CFFIndex; + ots::CFFIndex global_subrs_index; + ots::CFFIndex* local_subrs_index = new ots::CFFIndex; + + if (char_string) { + if (!AddSubr(char_string, char_string_len, + &buffer, char_strings_index)) { + return false; + } + } + if (global_subrs) { + if (!AddSubr(global_subrs, global_subrs_len, + &buffer, &global_subrs_index)) { + return false; + } + } + if (local_subrs) { + if (!AddSubr(local_subrs, local_subrs_len, + &buffer, local_subrs_index)) { + return false; + } + } + + ots::Buffer ots_buffer(&buffer[0], buffer.size()); + + ots::FontFile* file = new ots::FontFile(); + file->context = new ots::OTSContext(); + ots::Font* font = new ots::Font(file); + ots::OpenTypeCFF* cff = new ots::OpenTypeCFF(font, OTS_TAG_CFF); + cff->charstrings_index = char_strings_index; + cff->local_subrs = local_subrs_index; + bool ret = ots::ValidateCFFCharStrings(*cff, + global_subrs_index, + &ots_buffer); + delete file->context; + delete file; + delete font; + delete cff; + + return ret; +} + +// Validates |char_string| and returns true if it's valid. +bool ValidateCharStrings(const int *char_string, size_t char_string_len) { + return Validate(char_string, char_string_len, NULL, 0, NULL, 0); +} + +} // namespace + +TEST(ValidateTest, TestRMoveTo) { + { + const int char_string[] = { + 1, 2, kOpPrefix, ots::kRMoveTo, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, // width + 1, 2, kOpPrefix, ots::kRMoveTo, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, kOpPrefix, ots::kRMoveTo, + 1, 2, 3, kOpPrefix, ots::kRMoveTo, // invalid number of args + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestHMoveTo) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kHMoveTo, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, // width + 1, kOpPrefix, ots::kHMoveTo, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kHMoveTo, + 1, 2, kOpPrefix, ots::kHMoveTo, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestVMoveTo) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, // width + 1, kOpPrefix, ots::kVMoveTo, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, kOpPrefix, ots::kVMoveTo, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestRLineTo) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, kOpPrefix, ots::kRLineTo, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, kOpPrefix, ots::kRLineTo, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, kOpPrefix, ots::kRLineTo, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, kOpPrefix, ots::kRLineTo, // can't be the first op. + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestHLineTo) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, kOpPrefix, ots::kHLineTo, + 1, 2, kOpPrefix, ots::kHLineTo, + 1, 2, 3, kOpPrefix, ots::kHLineTo, + 1, 2, 3, 4, kOpPrefix, ots::kHLineTo, + 1, 2, 3, 4, 5, kOpPrefix, ots::kHLineTo, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + kOpPrefix, ots::kHLineTo, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kHLineTo, // can't be the first op. + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestVLineTo) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, kOpPrefix, ots::kVLineTo, + 1, 2, kOpPrefix, ots::kVLineTo, + 1, 2, 3, kOpPrefix, ots::kVLineTo, + 1, 2, 3, 4, kOpPrefix, ots::kVLineTo, + 1, 2, 3, 4, 5, kOpPrefix, ots::kVLineTo, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + kOpPrefix, ots::kVLineTo, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVLineTo, // can't be the first op. + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestRRCurveTo) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, 6, kOpPrefix, ots::kRRCurveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, kOpPrefix, ots::kRRCurveTo, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + kOpPrefix, ots::kRRCurveTo, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, 3, 4, 5, 6, kOpPrefix, ots::kRRCurveTo, // can't be the first op. + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestHHCurveTo) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, kOpPrefix, ots::kHHCurveTo, + 1, 2, 3, 4, 5, kOpPrefix, ots::kHHCurveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, kOpPrefix, ots::kHHCurveTo, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, kOpPrefix, ots::kHHCurveTo, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, kOpPrefix, ots::kHHCurveTo, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, 3, 4, 5, kOpPrefix, ots::kHHCurveTo, // can't be the first op. + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestHVCurveTo) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + // The first form. + 1, 2, 3, 4, kOpPrefix, ots::kHVCurveTo, + 1, 2, 3, 4, 5, kOpPrefix, ots::kHVCurveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, kOpPrefix, ots::kHVCurveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, + kOpPrefix, ots::kHVCurveTo, + // The second form. + 1, 2, 3, 4, 5, 6, 7, 8, kOpPrefix, ots::kHVCurveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, kOpPrefix, ots::kHVCurveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, + kOpPrefix, ots::kHVCurveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, + 22, 23, 24, 25, kOpPrefix, ots::kHVCurveTo, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, kOpPrefix, ots::kHVCurveTo, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, kOpPrefix, ots::kHVCurveTo, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, 3, 4, kOpPrefix, ots::kHVCurveTo, // can't be the first op. + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestRCurveLine) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, 6, 7, 8, kOpPrefix, ots::kRCurveLine, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, + kOpPrefix, ots::kRCurveLine, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, 6, 7, kOpPrefix, ots::kRCurveLine, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + // can't be the first op. + 1, 2, 3, 4, 5, 6, 7, 8, kOpPrefix, ots::kRCurveLine, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestRLineCurve) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, 6, 7, 8, kOpPrefix, ots::kRLineCurve, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, kOpPrefix, ots::kRLineCurve, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, 6, 7, kOpPrefix, ots::kRLineCurve, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + // can't be the first op. + 1, 2, 3, 4, 5, 6, 7, 8, kOpPrefix, ots::kRLineCurve, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestVHCurveTo) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + // The first form. + 1, 2, 3, 4, kOpPrefix, ots::kVHCurveTo, + 1, 2, 3, 4, 5, kOpPrefix, ots::kVHCurveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, kOpPrefix, ots::kVHCurveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, + kOpPrefix, ots::kVHCurveTo, + // The second form. + 1, 2, 3, 4, 5, 6, 7, 8, kOpPrefix, ots::kVHCurveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, kOpPrefix, ots::kVHCurveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, + kOpPrefix, ots::kVHCurveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, + 22, 23, 24, 25, kOpPrefix, ots::kVHCurveTo, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, kOpPrefix, ots::kVHCurveTo, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, kOpPrefix, ots::kVHCurveTo, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, 3, 4, kOpPrefix, ots::kVHCurveTo, // can't be the first op. + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestVVCurveTo) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, kOpPrefix, ots::kVVCurveTo, + 1, 2, 3, 4, 5, kOpPrefix, ots::kVVCurveTo, + 1, 2, 3, 4, 5, 6, 7, 8, kOpPrefix, ots::kVVCurveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, kOpPrefix, ots::kVVCurveTo, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + kOpPrefix, ots::kVVCurveTo, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, kOpPrefix, ots::kVVCurveTo, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, 3, 4, kOpPrefix, ots::kVVCurveTo, // can't be the first op. + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestFlex) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, kOpPrefix, ots::kFlex, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + kOpPrefix, ots::kFlex, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, kOpPrefix, ots::kFlex, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, kOpPrefix, ots::kFlex, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestHFlex) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, 6, 7, kOpPrefix, ots::kHFlex, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + kOpPrefix, ots::kHFlex, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, 6, kOpPrefix, ots::kHFlex, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, 3, 4, 5, 6, 7, kOpPrefix, ots::kHFlex, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestHFlex1) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, kOpPrefix, ots::kHFlex1, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + kOpPrefix, ots::kHFlex1, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, 6, 7, 8, kOpPrefix, ots::kHFlex1, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, 3, 4, 5, 6, 7, 8, 9, kOpPrefix, ots::kHFlex1, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestFlex1) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, kOpPrefix, ots::kFlex1, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + kOpPrefix, ots::kFlex1, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, kOpPrefix, ots::kFlex1, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, kOpPrefix, ots::kFlex1, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestEndChar) { + { + const int char_string[] = { + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + GET_SUBR_NUMBER(0), kOpPrefix, ots::kCallSubr, + }; + const int local_subrs[] = { + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(Validate(char_string, ARRAYSIZE(char_string), + NULL, 0, + local_subrs, ARRAYSIZE(local_subrs))); + } + { + const int char_string[] = { + GET_SUBR_NUMBER(0), kOpPrefix, ots::kCallGSubr, + }; + const int global_subrs[] = { + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(Validate(char_string, ARRAYSIZE(char_string), + global_subrs, ARRAYSIZE(global_subrs), + NULL, 0)); + } +} + +TEST(ValidateTest, TestHStem) { + { + const int char_string[] = { + 1, 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, 3, 4, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 0, // width + 1, 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 0, 1, 2, kOpPrefix, ots::kHStem, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, kOpPrefix, ots::kHStem, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestVStem) { + { + const int char_string[] = { + 1, 2, kOpPrefix, ots::kVStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, 3, 4, kOpPrefix, ots::kVStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 0, // width + 1, 2, kOpPrefix, ots::kVStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 0, 1, 2, kOpPrefix, ots::kVStem, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, kOpPrefix, ots::kVStem, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestHStemHm) { + { + const int char_string[] = { + 1, 2, kOpPrefix, ots::kHStemHm, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, 3, 4, kOpPrefix, ots::kHStemHm, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 0, // width + 1, 2, kOpPrefix, ots::kHStemHm, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 0, 1, 2, kOpPrefix, ots::kHStemHm, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, kOpPrefix, ots::kHStemHm, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestVStemHm) { + { + const int char_string[] = { + 1, 2, kOpPrefix, ots::kVStemHm, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, 3, 4, kOpPrefix, ots::kVStemHm, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 0, // width + 1, 2, kOpPrefix, ots::kVStemHm, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 0, 1, 2, kOpPrefix, ots::kVStemHm, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kVMoveTo, + 1, 2, 3, 4, 5, kOpPrefix, ots::kVStemHm, // invalid + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestHintMask) { + { + const int char_string[] = { + 1, 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kHintMask, 0x00, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, kOpPrefix, ots::kHStem, + 3, 4, 5, 6, kOpPrefix, ots::kHintMask, 0x00, // vstem + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + kOpPrefix, ots::kHintMask, 0x00, // no stems to mask + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, kOpPrefix, ots::kHStem, + 3, 4, 5, kOpPrefix, ots::kHintMask, 0x00, // invalid vstem + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestCntrMask) { + { + const int char_string[] = { + 1, 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kCntrMask, 0x00, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, kOpPrefix, ots::kHStem, + 3, 4, 5, 6, kOpPrefix, ots::kCntrMask, 0x00, // vstem + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + kOpPrefix, ots::kCntrMask, 0x00, // no stems to mask + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, kOpPrefix, ots::kHStem, + 3, 4, 5, kOpPrefix, ots::kCntrMask, 0x00, // invalid vstem + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestAbs) { + { + const int char_string[] = { + -1, kOpPrefix, ots::kAbs, + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + kOpPrefix, ots::kAbs, // invalid + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestAdd) { + { + const int char_string[] = { + 0, 1, kOpPrefix, ots::kAdd, + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kAdd, // invalid + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestSub) { + { + const int char_string[] = { + 2, 1, kOpPrefix, ots::kSub, + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kSub, // invalid + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestDiv) { + // TODO(yusukes): Test div-by-zero. + { + const int char_string[] = { + 2, 1, kOpPrefix, ots::kDiv, + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kDiv, // invalid + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestNeg) { + { + const int char_string[] = { + -1, kOpPrefix, ots::kNeg, + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + kOpPrefix, ots::kNeg, // invalid + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestRandom) { + { + const int char_string[] = { + kOpPrefix, ots::kRandom, // OTS rejects the operator. + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestMul) { + { + const int char_string[] = { + 2, 1, kOpPrefix, ots::kMul, + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kMul, // invalid + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestSqrt) { + // TODO(yusukes): Test negative numbers. + { + const int char_string[] = { + 4, kOpPrefix, ots::kSqrt, + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + kOpPrefix, ots::kSqrt, // invalid + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestDrop) { + { + const int char_string[] = { + 1, 1, kOpPrefix, ots::kAdd, + kOpPrefix, ots::kDrop, + 1, 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + kOpPrefix, ots::kDrop, // invalid + 1, 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestExch) { + { + const int char_string[] = { + 1, 1, kOpPrefix, ots::kAdd, + kOpPrefix, ots::kDup, + kOpPrefix, ots::kExch, + kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 1, kOpPrefix, ots::kAdd, + kOpPrefix, ots::kExch, // invalid + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestIndex) { + { + const int char_string[] = { + 1, 2, 3, -1, kOpPrefix, ots::kIndex, // OTS rejects the operator. + kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestRoll) { + { + const int char_string[] = { + 1, 2, 2, 1, kOpPrefix, ots::kRoll, // OTS rejects the operator. + kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestDup) { + { + const int char_string[] = { + 1, 1, kOpPrefix, ots::kAdd, + kOpPrefix, ots::kDup, + kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + kOpPrefix, ots::kDup, // invalid + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestPut) { + { + const int char_string[] = { + 1, 10, kOpPrefix, ots::kPut, // OTS rejects the operator. + 1, 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestGet) { + { + const int char_string[] = { + 1, 10, kOpPrefix, ots::kGet, // OTS rejects the operator. + 1, 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestAnd) { + { + const int char_string[] = { + 2, 1, kOpPrefix, ots::kAnd, + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kAnd, // invalid + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestOr) { + { + const int char_string[] = { + 2, 1, kOpPrefix, ots::kOr, + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kOr, // invalid + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestNot) { + { + const int char_string[] = { + 1, kOpPrefix, ots::kNot, + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + kOpPrefix, ots::kNot, // invalid + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestEq) { + { + const int char_string[] = { + 2, 1, kOpPrefix, ots::kEq, + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, kOpPrefix, ots::kEq, // invalid + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestIfElse) { + { + const int char_string[] = { + 1, 2, 3, 4, kOpPrefix, ots::kIfElse, + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, 3, kOpPrefix, ots::kIfElse, // invalid + 2, kOpPrefix, ots::kHStem, + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestCallSubr) { + // Call valid subr. + { + const int char_string[] = { + GET_SUBR_NUMBER(0), kOpPrefix, ots::kCallSubr, + }; + const int local_subrs[] = { + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(Validate(char_string, ARRAYSIZE(char_string), + NULL, 0, + local_subrs, ARRAYSIZE(local_subrs))); + } + // Call undefined subr. + { + const int char_string[] = { + GET_SUBR_NUMBER(-1), kOpPrefix, ots::kCallSubr, + }; + const int local_subrs[] = { + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(Validate(char_string, ARRAYSIZE(char_string), + NULL, 0, + local_subrs, ARRAYSIZE(local_subrs))); + } + { + const int char_string[] = { + GET_SUBR_NUMBER(1), kOpPrefix, ots::kCallSubr, + }; + const int local_subrs[] = { + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(Validate(char_string, ARRAYSIZE(char_string), + NULL, 0, + local_subrs, ARRAYSIZE(local_subrs))); + } + { + const int char_string[] = { + GET_SUBR_NUMBER(-1), kOpPrefix, ots::kCallSubr, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + GET_SUBR_NUMBER(0), kOpPrefix, ots::kCallSubr, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + GET_SUBR_NUMBER(1), kOpPrefix, ots::kCallSubr, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestCallGSubr) { + // Call valid subr. + { + const int char_string[] = { + GET_SUBR_NUMBER(0), kOpPrefix, ots::kCallGSubr, + }; + const int global_subrs[] = { + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(Validate(char_string, ARRAYSIZE(char_string), + global_subrs, ARRAYSIZE(global_subrs), + NULL, 0)); + } + // Call undefined subr. + { + const int char_string[] = { + GET_SUBR_NUMBER(-1), kOpPrefix, ots::kCallGSubr, + }; + const int global_subrs[] = { + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(Validate(char_string, ARRAYSIZE(char_string), + global_subrs, ARRAYSIZE(global_subrs), + NULL, 0)); + } + { + const int char_string[] = { + GET_SUBR_NUMBER(1), kOpPrefix, ots::kCallGSubr, + }; + const int global_subrs[] = { + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(Validate(char_string, ARRAYSIZE(char_string), + global_subrs, ARRAYSIZE(global_subrs), + NULL, 0)); + } + { + const int char_string[] = { + GET_SUBR_NUMBER(-1), kOpPrefix, ots::kCallGSubr, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + GET_SUBR_NUMBER(0), kOpPrefix, ots::kCallGSubr, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + GET_SUBR_NUMBER(1), kOpPrefix, ots::kCallGSubr, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestCallGSubrWithComputedValues) { + { + // OTS does not allow to call(g)subr with a subroutine number which is + // not a immediate value for safety. + const int char_string[] = { + 0, 0, kOpPrefix, ots::kAdd, + kOpPrefix, ots::kCallGSubr, + }; + const int global_subrs[] = { + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(Validate(char_string, ARRAYSIZE(char_string), + global_subrs, ARRAYSIZE(global_subrs), + NULL, 0)); + } +} + +TEST(ValidateTest, TestInfiniteLoop) { + { + const int char_string[] = { + GET_SUBR_NUMBER(0), kOpPrefix, ots::kCallSubr, + }; + const int local_subrs[] = { + GET_SUBR_NUMBER(0), kOpPrefix, ots::kCallSubr, + }; + EXPECT_FALSE(Validate(char_string, ARRAYSIZE(char_string), + NULL, 0, + local_subrs, ARRAYSIZE(local_subrs))); + } + { + const int char_string[] = { + GET_SUBR_NUMBER(0), kOpPrefix, ots::kCallGSubr, + }; + const int global_subrs[] = { + GET_SUBR_NUMBER(0), kOpPrefix, ots::kCallGSubr, + }; + EXPECT_FALSE(Validate(char_string, ARRAYSIZE(char_string), + global_subrs, ARRAYSIZE(global_subrs), + NULL, 0)); + } + // mutual recursion which doesn't stop. + { + const int char_string[] = { + GET_SUBR_NUMBER(0), kOpPrefix, ots::kCallSubr, + }; + const int global_subrs[] = { + GET_SUBR_NUMBER(0), kOpPrefix, ots::kCallSubr, + }; + const int local_subrs[] = { + GET_SUBR_NUMBER(0), kOpPrefix, ots::kCallGSubr, + }; + EXPECT_FALSE(Validate(char_string, ARRAYSIZE(char_string), + global_subrs, ARRAYSIZE(global_subrs), + local_subrs, ARRAYSIZE(local_subrs))); + } +} + +TEST(ValidateTest, TestStackOverflow) { + { + const int char_string[] = { + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, + 1, 2, 3, 4, 5, 6, 7, 8, + kOpPrefix, ots::kEndChar, + }; + EXPECT_TRUE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, + 1, 2, 3, 4, 5, 6, 7, 8, 9, // overflow + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestDeprecatedOperators) { + { + const int char_string[] = { + kOpPrefix, 16, // 'blend'. + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + kOpPrefix, (12 << 8) + 8, // 'store'. + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + kOpPrefix, (12 << 8) + 13, // 'load'. + kOpPrefix, ots::kEndChar, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} + +TEST(ValidateTest, TestUnterminatedCharString) { + // No endchar operator. + { + const int char_string[] = { + 123, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 123, 456, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } + { + const int char_string[] = { + 123, 456, kOpPrefix, ots::kReturn, + }; + EXPECT_FALSE(ValidateCharStrings(char_string, ARRAYSIZE(char_string))); + } +} |