1 /* 2 * Copyright (C) 2014 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 "suggest/core/layout/geometry_utils.h" 18 19 #include <gtest/gtest.h> 20 21 namespace latinime { 22 namespace { 23 24 ::testing::AssertionResult ExpectAngleDiffEq(const char* expectedExpression, 25 const char* actualExpression, float expected, float actual) { 26 if (actual < 0.0f || M_PI_F < actual) { 27 return ::testing::AssertionFailure() 28 << "Must be in the range of [0.0f, M_PI_F]." 29 << " expected: " << expected 30 << " actual: " << actual; 31 } 32 return ::testing::internal::CmpHelperFloatingPointEQ<float>( 33 expectedExpression, actualExpression, expected, actual); 34 } 35 36 #define EXPECT_ANGLE_DIFF_EQ(expected, actual) \ 37 EXPECT_PRED_FORMAT2(ExpectAngleDiffEq, expected, actual); 38 39 TEST(GeometryUtilsTest, testSquareFloat) { 40 const float test_data[] = { 0.0f, 1.0f, 123.456f, -1.0f, -9876.54321f }; 41 for (const float value : test_data) { 42 EXPECT_FLOAT_EQ(value * value, GeometryUtils::SQUARE_FLOAT(value)); 43 } 44 } 45 46 TEST(GeometryUtilsTest, testGetAngle) { 47 EXPECT_FLOAT_EQ(0.0f, GeometryUtils::getAngle(0, 0, 0, 0)); 48 EXPECT_FLOAT_EQ(0.0f, GeometryUtils::getAngle(100, -10, 100, -10)); 49 50 EXPECT_FLOAT_EQ(M_PI_F / 4.0f, GeometryUtils::getAngle(1, 1, 0, 0)); 51 EXPECT_FLOAT_EQ(M_PI_F, GeometryUtils::getAngle(-1, 0, 0, 0)); 52 53 EXPECT_FLOAT_EQ(GeometryUtils::getAngle(0, 0, -1, 0), GeometryUtils::getAngle(1, 0, 0, 0)); 54 EXPECT_FLOAT_EQ(GeometryUtils::getAngle(1, 2, 3, 4), 55 GeometryUtils::getAngle(100, 200, 300, 400)); 56 } 57 58 TEST(GeometryUtilsTest, testGetAngleDiff) { 59 EXPECT_ANGLE_DIFF_EQ(0.0f, GeometryUtils::getAngleDiff(0.0f, 0.0f)); 60 EXPECT_ANGLE_DIFF_EQ(0.0f, GeometryUtils::getAngleDiff(10000.0f, 10000.0f)); 61 EXPECT_ANGLE_DIFF_EQ(ROUND_FLOAT_10000(M_PI_F), 62 GeometryUtils::getAngleDiff(0.0f, M_PI_F)); 63 EXPECT_ANGLE_DIFF_EQ(ROUND_FLOAT_10000(M_PI_F / 6.0f), 64 GeometryUtils::getAngleDiff(M_PI_F / 3.0f, M_PI_F / 2.0f)); 65 EXPECT_ANGLE_DIFF_EQ(ROUND_FLOAT_10000(M_PI_F / 2.0f), 66 GeometryUtils::getAngleDiff(0.0f, M_PI_F * 1.5f)); 67 EXPECT_ANGLE_DIFF_EQ(0.0f, GeometryUtils::getAngleDiff(0.0f, M_PI_F * 1024.0f)); 68 EXPECT_ANGLE_DIFF_EQ(0.0f, GeometryUtils::getAngleDiff(-M_PI_F, M_PI_F)); 69 } 70 71 TEST(GeometryUtilsTest, testGetDistanceInt) { 72 EXPECT_EQ(0, GeometryUtils::getDistanceInt(0, 0, 0, 0)); 73 EXPECT_EQ(0, GeometryUtils::getAngle(100, -10, 100, -10)); 74 75 EXPECT_EQ(5, GeometryUtils::getDistanceInt(0, 0, 5, 0)); 76 EXPECT_EQ(5, GeometryUtils::getDistanceInt(0, 0, 3, 4)); 77 EXPECT_EQ(5, GeometryUtils::getDistanceInt(0, -4, 3, 0)); 78 EXPECT_EQ(5, GeometryUtils::getDistanceInt(0, 0, -3, -4)); 79 EXPECT_EQ(500, GeometryUtils::getDistanceInt(0, 0, 300, -400)); 80 } 81 82 } // namespace 83 } // namespace latinime 84
