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Diffstat (limited to 'test/style/functions.cpp')
-rw-r--r-- | test/style/functions.cpp | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/test/style/functions.cpp b/test/style/functions.cpp new file mode 100644 index 0000000000..d19d2ea88e --- /dev/null +++ b/test/style/functions.cpp @@ -0,0 +1,59 @@ +#include <iostream> +#include "../fixtures/util.hpp" + +#include <mbgl/style/function.hpp> +#include <mbgl/style/style_calculation_parameters.hpp> + +using namespace mbgl; + +TEST(Function, Constant) { + EXPECT_EQ(2.0f, mbgl::Function<float>(2).evaluate(StyleCalculationParameters(0))); + EXPECT_EQ(3.8f, mbgl::Function<float>(3.8).evaluate(StyleCalculationParameters(0))); + EXPECT_EQ(22.0f, mbgl::Function<float>(22).evaluate(StyleCalculationParameters(0))); + EXPECT_EQ(2.0f, mbgl::Function<float>(2).evaluate(StyleCalculationParameters(4))); + EXPECT_EQ(3.8f, mbgl::Function<float>(3.8).evaluate(StyleCalculationParameters(4))); + EXPECT_EQ(22.0f, mbgl::Function<float>(22).evaluate(StyleCalculationParameters(4))); + EXPECT_EQ(2.0f, mbgl::Function<float>(2).evaluate(StyleCalculationParameters(22))); + EXPECT_EQ(3.8f, mbgl::Function<float>(3.8).evaluate(StyleCalculationParameters(22))); + EXPECT_EQ(22.0f, mbgl::Function<float>(22).evaluate(StyleCalculationParameters(22))); +} + +TEST(Function, Stops) { + // Explicit constant slope in fringe regions. + mbgl::Function<float> slope_1({ { 0, 1.5 }, { 6, 1.5 }, { 8, 3 }, { 22, 3 } }, 1.75); + EXPECT_EQ(1.5, slope_1.evaluate(StyleCalculationParameters(0))); + EXPECT_EQ(1.5, slope_1.evaluate(StyleCalculationParameters(4))); + EXPECT_EQ(1.5, slope_1.evaluate(StyleCalculationParameters(6))); + ASSERT_FLOAT_EQ(2.0454545454545454, slope_1.evaluate(StyleCalculationParameters(7))); + EXPECT_EQ(3.0, slope_1.evaluate(StyleCalculationParameters(8))); + EXPECT_EQ(3.0, slope_1.evaluate(StyleCalculationParameters(9))); + EXPECT_EQ(3.0, slope_1.evaluate(StyleCalculationParameters(15))); + EXPECT_EQ(3.0, slope_1.evaluate(StyleCalculationParameters(22))); + + + // Test constant values in fringe regions. + mbgl::Function<float> slope_2({ { 6, 1.5 }, { 8, 3 } }, 1.75); + EXPECT_EQ(1.5, slope_2.evaluate(StyleCalculationParameters(0))); + EXPECT_EQ(1.5, slope_2.evaluate(StyleCalculationParameters(4))); + EXPECT_EQ(1.5, slope_2.evaluate(StyleCalculationParameters(6))); + ASSERT_FLOAT_EQ(2.0454545454545454, slope_2.evaluate(StyleCalculationParameters(7))); + EXPECT_EQ(3.0, slope_2.evaluate(StyleCalculationParameters(8))); + EXPECT_EQ(3.0, slope_2.evaluate(StyleCalculationParameters(9))); + EXPECT_EQ(3.0, slope_2.evaluate(StyleCalculationParameters(15))); + EXPECT_EQ(3.0, slope_2.evaluate(StyleCalculationParameters(22))); + + // Test no values. + mbgl::Function<float> slope_3({}, 1.75); + EXPECT_EQ(1, slope_3.evaluate(StyleCalculationParameters(2))); + EXPECT_EQ(1, slope_3.evaluate(StyleCalculationParameters(6))); + EXPECT_EQ(1, slope_3.evaluate(StyleCalculationParameters(12))); + + + // Explicit constant slope in fringe regions. + mbgl::Function<float> slope_4({ { 0, 2 }, { 8, 10 } }, 1); + EXPECT_EQ(2, slope_4.evaluate(StyleCalculationParameters(0))); + EXPECT_EQ(3, slope_4.evaluate(StyleCalculationParameters(1))); + EXPECT_EQ(4, slope_4.evaluate(StyleCalculationParameters(2))); + EXPECT_EQ(4.75, slope_4.evaluate(StyleCalculationParameters(2.75))); + EXPECT_EQ(10, slope_4.evaluate(StyleCalculationParameters(8))); +} |