60 lines
3.1 KiB
C++
60 lines
3.1 KiB
C++
#include <iostream>
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#include <mbgl/test/util.hpp>
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#include <mbgl/style/function.hpp>
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#include <mbgl/style/style_calculation_parameters.hpp>
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using namespace mbgl;
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TEST(Function, Constant) {
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EXPECT_EQ(2.0f, mbgl::Function<float>(2).evaluate(StyleCalculationParameters(0)));
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EXPECT_EQ(3.8f, mbgl::Function<float>(3.8).evaluate(StyleCalculationParameters(0)));
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EXPECT_EQ(22.0f, mbgl::Function<float>(22).evaluate(StyleCalculationParameters(0)));
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EXPECT_EQ(2.0f, mbgl::Function<float>(2).evaluate(StyleCalculationParameters(4)));
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EXPECT_EQ(3.8f, mbgl::Function<float>(3.8).evaluate(StyleCalculationParameters(4)));
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EXPECT_EQ(22.0f, mbgl::Function<float>(22).evaluate(StyleCalculationParameters(4)));
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EXPECT_EQ(2.0f, mbgl::Function<float>(2).evaluate(StyleCalculationParameters(22)));
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EXPECT_EQ(3.8f, mbgl::Function<float>(3.8).evaluate(StyleCalculationParameters(22)));
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EXPECT_EQ(22.0f, mbgl::Function<float>(22).evaluate(StyleCalculationParameters(22)));
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}
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TEST(Function, Stops) {
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// Explicit constant slope in fringe regions.
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mbgl::Function<float> slope_1({ { 0, 1.5 }, { 6, 1.5 }, { 8, 3 }, { 22, 3 } }, 1.75);
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EXPECT_EQ(1.5, slope_1.evaluate(StyleCalculationParameters(0)));
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EXPECT_EQ(1.5, slope_1.evaluate(StyleCalculationParameters(4)));
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EXPECT_EQ(1.5, slope_1.evaluate(StyleCalculationParameters(6)));
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ASSERT_FLOAT_EQ(2.0454545454545454, slope_1.evaluate(StyleCalculationParameters(7)));
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EXPECT_EQ(3.0, slope_1.evaluate(StyleCalculationParameters(8)));
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EXPECT_EQ(3.0, slope_1.evaluate(StyleCalculationParameters(9)));
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EXPECT_EQ(3.0, slope_1.evaluate(StyleCalculationParameters(15)));
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EXPECT_EQ(3.0, slope_1.evaluate(StyleCalculationParameters(22)));
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// Test constant values in fringe regions.
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mbgl::Function<float> slope_2({ { 6, 1.5 }, { 8, 3 } }, 1.75);
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EXPECT_EQ(1.5, slope_2.evaluate(StyleCalculationParameters(0)));
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EXPECT_EQ(1.5, slope_2.evaluate(StyleCalculationParameters(4)));
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EXPECT_EQ(1.5, slope_2.evaluate(StyleCalculationParameters(6)));
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ASSERT_FLOAT_EQ(2.0454545454545454, slope_2.evaluate(StyleCalculationParameters(7)));
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EXPECT_EQ(3.0, slope_2.evaluate(StyleCalculationParameters(8)));
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EXPECT_EQ(3.0, slope_2.evaluate(StyleCalculationParameters(9)));
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EXPECT_EQ(3.0, slope_2.evaluate(StyleCalculationParameters(15)));
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EXPECT_EQ(3.0, slope_2.evaluate(StyleCalculationParameters(22)));
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// Test no values.
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mbgl::Function<float> slope_3({}, 1.75);
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EXPECT_EQ(1, slope_3.evaluate(StyleCalculationParameters(2)));
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EXPECT_EQ(1, slope_3.evaluate(StyleCalculationParameters(6)));
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EXPECT_EQ(1, slope_3.evaluate(StyleCalculationParameters(12)));
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// Explicit constant slope in fringe regions.
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mbgl::Function<float> slope_4({ { 0, 2 }, { 8, 10 } }, 1);
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EXPECT_EQ(2, slope_4.evaluate(StyleCalculationParameters(0)));
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EXPECT_EQ(3, slope_4.evaluate(StyleCalculationParameters(1)));
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EXPECT_EQ(4, slope_4.evaluate(StyleCalculationParameters(2)));
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EXPECT_EQ(4.75, slope_4.evaluate(StyleCalculationParameters(2.75)));
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EXPECT_EQ(10, slope_4.evaluate(StyleCalculationParameters(8)));
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}
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