153 lines
5.6 KiB
153 lines
5.6 KiB
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "minikin/Measurement.h"
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#include <gtest/gtest.h>
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#include "UnicodeUtils.h"
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namespace minikin {
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float getAdvance(const float* advances, const char* src) {
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const size_t BUF_SIZE = 256;
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uint16_t buf[BUF_SIZE];
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size_t offset;
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size_t size;
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ParseUnicode(buf, BUF_SIZE, src, &size, &offset);
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return getRunAdvance(advances, buf, 0, size, offset);
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}
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void distributeAdvances(float* advances, const char* src, int count) {
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const size_t BUF_SIZE = 256;
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uint16_t buf[BUF_SIZE];
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size_t offset;
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size_t size;
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ParseUnicode(buf, BUF_SIZE, src, &size, &offset);
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distributeAdvances(advances, buf, offset, count);
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}
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// Latin fi
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TEST(Measurement, getRunAdvance_fi) {
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const float unligated[] = {30.0, 20.0};
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EXPECT_EQ(0.0, getAdvance(unligated, "| 'f' 'i'"));
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EXPECT_EQ(30.0, getAdvance(unligated, "'f' | 'i'"));
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EXPECT_EQ(50.0, getAdvance(unligated, "'f' 'i' |"));
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const float ligated[] = {40.0, 0.0};
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EXPECT_EQ(0.0, getAdvance(ligated, "| 'f' 'i'"));
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EXPECT_EQ(20.0, getAdvance(ligated, "'f' | 'i'"));
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EXPECT_EQ(40.0, getAdvance(ligated, "'f' 'i' |"));
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}
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TEST(Measurement, getRunAdvance_control_characters) {
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const float unligated[] = {30.0, 20.0, 0.0, 0.0};
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EXPECT_EQ(0.0, getAdvance(unligated, "| 'f' 'i' U+2066 U+202C"));
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EXPECT_EQ(30.0, getAdvance(unligated, "'f' | 'i' U+2066 U+202C"));
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EXPECT_EQ(50.0, getAdvance(unligated, "'f' 'i' | U+2066 U+202C"));
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EXPECT_EQ(50.0, getAdvance(unligated, "'f' 'i' U+2066 | U+202C"));
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EXPECT_EQ(50.0, getAdvance(unligated, "'f' 'i' U+2066 U+202C |"));
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const float liagated[] = {40.0, 0.0, 0.0, 0.0};
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EXPECT_EQ(0.0, getAdvance(liagated, "| 'f' 'i' U+2066 U+202C"));
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EXPECT_EQ(20.0, getAdvance(liagated, "'f' | 'i' U+2066 U+202C"));
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EXPECT_EQ(40.0, getAdvance(liagated, "'f' 'i' | U+2066 U+202C"));
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EXPECT_EQ(40.0, getAdvance(liagated, "'f' 'i' U+2066 | U+202C"));
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EXPECT_EQ(40.0, getAdvance(liagated, "'f' 'i' U+2066 U+202C |"));
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}
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// Devanagari ka+virama+ka
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TEST(Measurement, getRunAdvance_kka) {
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const float unligated[] = {30.0, 0.0, 30.0};
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EXPECT_EQ(0.0, getAdvance(unligated, "| U+0915 U+094D U+0915"));
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EXPECT_EQ(30.0, getAdvance(unligated, "U+0915 | U+094D U+0915"));
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EXPECT_EQ(30.0, getAdvance(unligated, "U+0915 U+094D | U+0915"));
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EXPECT_EQ(60.0, getAdvance(unligated, "U+0915 U+094D U+0915 |"));
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const float ligated[] = {30.0, 0.0, 0.0};
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EXPECT_EQ(0.0, getAdvance(ligated, "| U+0915 U+094D U+0915"));
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EXPECT_EQ(30.0, getAdvance(ligated, "U+0915 | U+094D U+0915"));
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EXPECT_EQ(30.0, getAdvance(ligated, "U+0915 U+094D | U+0915"));
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EXPECT_EQ(30.0, getAdvance(ligated, "U+0915 U+094D U+0915 |"));
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}
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TEST(Measurement, distributeAdvances_fi) {
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float ligated[] = {20.0, 0.0};
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distributeAdvances(ligated, "| 'f' 'i' ", 2);
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EXPECT_EQ(ligated[0], 10.0);
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EXPECT_EQ(ligated[1], 10.0);
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}
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TEST(Measurement, distributeAdvances_non_zero_start) {
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// Note that advance[i] corresponding to (i + start)-th character.
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float ligated[] = {20.0, 0.0};
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distributeAdvances(ligated, "'a' 'b' | 'f' 'i' ", 2);
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EXPECT_EQ(ligated[0], 10.0);
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EXPECT_EQ(ligated[1], 10.0);
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}
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TEST(Measurement, distributeAdvances_non_zero_start_with_control_characters) {
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// Note that advance[i] corresponding to (i + start)-th character.
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float ligated[] = {20.0, 0.0, 0.0, 0.0};
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distributeAdvances(ligated, "'a' U+2066 | 'f' 'i' U+2066 U+202C", 4);
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EXPECT_EQ(ligated[0], 10.0);
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EXPECT_EQ(ligated[1], 10.0);
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EXPECT_EQ(ligated[2], 0.0);
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EXPECT_EQ(ligated[3], 0.0);
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}
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TEST(Measurement, distributeAdvances_with_count) {
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// Note that advance[i] corresponding to (i + start)-th character.
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float ligated[] = {20.0, 0.0, 30.0, 0.0};
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distributeAdvances(ligated, "'a' 'b' | 'f' 'i' 'f' 'i' ", 2);
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EXPECT_EQ(ligated[0], 10.0);
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EXPECT_EQ(ligated[1], 10.0);
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// Count is 2, so it won't change the rest of the array.
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EXPECT_EQ(ligated[2], 30.0);
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EXPECT_EQ(ligated[3], 0.0);
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}
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TEST(Measurement, distributeAdvances_control_characters) {
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float ligated[] = {20.0, 0.0, 0.0, 0.0};
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distributeAdvances(ligated, "| 'f' 'i' U+2066 U+202C", 4);
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EXPECT_EQ(ligated[0], 10.0);
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EXPECT_EQ(ligated[1], 10.0);
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EXPECT_EQ(ligated[2], 0.0);
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EXPECT_EQ(ligated[3], 0.0);
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}
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TEST(Measurement, distributeAdvances_surrogate) {
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float advances[] = {20.0, 0.0, 0.0, 0.0};
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distributeAdvances(advances, "| U+D83D U+DE00 U+2066 U+202C", 4);
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EXPECT_EQ(advances[0], 20.0);
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EXPECT_EQ(advances[1], 0.0);
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EXPECT_EQ(advances[2], 0.0);
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EXPECT_EQ(advances[3], 0.0);
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}
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TEST(Measurement, distributeAdvances_surrogate_in_ligature) {
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// If a ligature contains surrogates, advances is assigned to the first
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// character in surrogate.
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float ligated[] = {40.0, 0.0, 0.0, 0.0};
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distributeAdvances(ligated, "| U+D83D U+DE00 U+D83D U+DE01", 4);
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EXPECT_EQ(ligated[0], 20.0);
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EXPECT_EQ(ligated[1], 0.0);
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EXPECT_EQ(ligated[2], 20.0);
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EXPECT_EQ(ligated[3], 0.0);
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}
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} // namespace minikin
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