1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "minikin/MeasuredText.h" 18 19 #include <gtest/gtest.h> 20 21 #include "minikin/LineBreaker.h" 22 23 #include "FontTestUtils.h" 24 #include "UnicodeUtils.h" 25 26 namespace minikin { 27 28 constexpr float CHAR_WIDTH = 10.0; // Mock implementation always returns 10.0 for advance. 29 30 TEST(MeasuredTextTest, RunTests) { 31 constexpr uint32_t CHAR_COUNT = 6; 32 constexpr float REPLACEMENT_WIDTH = 20.0f; 33 auto font = buildFontCollection("Ascii.ttf"); 34 35 MeasuredTextBuilder builder; 36 37 MinikinPaint paint1(font); 38 paint1.size = 10.0f; // make 1em = 10px 39 builder.addStyleRun(0, 2, std::move(paint1), false /* is RTL */); 40 builder.addReplacementRun(2, 4, REPLACEMENT_WIDTH, 0 /* locale list id */); 41 MinikinPaint paint2(font); 42 paint2.size = 10.0f; // make 1em = 10px 43 builder.addStyleRun(4, 6, std::move(paint2), false /* is RTL */); 44 45 std::vector<uint16_t> text(CHAR_COUNT, 'a'); 46 47 std::unique_ptr<MeasuredText> measuredText = 48 builder.build(text, true /* compute hyphenation */, false /* compute full layout */); 49 50 ASSERT_TRUE(measuredText); 51 52 // ReplacementRun assigns all width to the first character and leave zeros others. 53 std::vector<float> expectedWidths = {CHAR_WIDTH, CHAR_WIDTH, REPLACEMENT_WIDTH, 54 0, CHAR_WIDTH, CHAR_WIDTH}; 55 56 EXPECT_EQ(expectedWidths, measuredText->widths); 57 } 58 59 } // namespace minikin 60
