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#include <mbgl/test/util.hpp>
#include <mbgl/test/stub_geometry_tile_feature.hpp>
#include <mbgl/style/property_expression.hpp>
#include <mbgl/renderer/property_evaluator.hpp>
#include <mbgl/renderer/property_evaluation_parameters.hpp>
#include <mbgl/style/expression/dsl.hpp>
using namespace mbgl;
using namespace mbgl::style;
using namespace mbgl::style::expression::dsl;
using namespace std::string_literals;
static StubGeometryTileFeature oneInteger {
PropertyMap {{ "property", uint64_t(1) }}
};
static StubGeometryTileFeature oneDouble {
PropertyMap {{ "property", 1.0 }}
};
static StubGeometryTileFeature oneString {
PropertyMap {{ "property", "1"s }}
};
float evaluate(PropertyValue<float> value, float zoom) {
return value.evaluate(PropertyEvaluator<float>(PropertyEvaluationParameters(zoom), 0));
}
TEST(PropertyExpression, Constant) {
EXPECT_EQ(2.0f, evaluate(PropertyValue<float>(2.0), 0));
EXPECT_EQ(3.8f, evaluate(PropertyValue<float>(3.8), 0));
EXPECT_EQ(22.0f, evaluate(PropertyValue<float>(22.0), 0));
EXPECT_EQ(2.0f, evaluate(PropertyValue<float>(2.0), 4));
EXPECT_EQ(3.8f, evaluate(PropertyValue<float>(3.8), 4));
EXPECT_EQ(22.0f, evaluate(PropertyValue<float>(22.0), 4));
EXPECT_EQ(2.0f, evaluate(PropertyValue<float>(2.0), 22));
EXPECT_EQ(3.8f, evaluate(PropertyValue<float>(3.8), 22));
EXPECT_EQ(22.0f, evaluate(PropertyValue<float>(22.0), 22));
}
TEST(PropertyExpression, Expression) {
PropertyExpression<float> expression(interpolate(linear(), zoom(), 0.0, literal(0.0), 1.0, literal(1.0)));
EXPECT_EQ(0.0, evaluate(expression, 0.0));
EXPECT_EQ(0.5, evaluate(expression, 0.5));
}
TEST(PropertyExpression, Defaults) {
EXPECT_EQ(1.0f, PropertyExpression<float>(number(get("property")), 0.0)
.evaluate(oneInteger, 2.0f));
EXPECT_EQ(1.0f, PropertyExpression<float>(number(get("property")), 0.0)
.evaluate(oneDouble, 2.0f));
EXPECT_EQ(0.0f, PropertyExpression<float>(number(get("property")), 0.0)
.evaluate(oneString, 2.0f));
EXPECT_EQ(2.0f, PropertyExpression<float>(number(get("property")))
.evaluate(oneString, 2.0f));
}
TEST(PropertyExpression, ZoomInterpolation) {
EXPECT_EQ(40.0f, PropertyExpression<float>(
interpolate(linear(), zoom(),
0.0, interpolate(linear(), number(get("property")), 1.0, literal(24.0)),
1.5, interpolate(linear(), number(get("property")), 1.0, literal(36.0)),
3.0, interpolate(linear(), number(get("property")), 1.0, literal(48.0))
), 0.0f)
.evaluate(2.0f, oneInteger, -1.0f)) << "Should interpolate between stops";
EXPECT_EQ(33.0, PropertyExpression<float>(
interpolate(linear(), zoom(),
5.0, interpolate(linear(), number(get("property")), 1.0, literal(33.0)),
10.0, interpolate(linear(), number(get("property")), 1.0, literal(66.0))
), 0.0f)
.evaluate(0.0f, oneInteger, -1.0f)) << "Use first stop output for input values from -inf to first stop";
EXPECT_EQ(66.0, PropertyExpression<float>(
interpolate(linear(), zoom(),
0.0, interpolate(linear(), number(get("property")), 1.0, literal(33.0)),
10.0, interpolate(linear(), number(get("property")), 1.0, literal(66.0))
), 0.0f)
.evaluate(20.0f, oneInteger, -1.0f)) << "Use last stop output for input values from last stop to +inf";
EXPECT_EQ(66.0f, PropertyExpression<float>(
interpolate(linear(), zoom(),
0.0, interpolate(linear(), number(get("property")), 1.0, literal(33.0)),
10.0, interpolate(linear(), number(get("property")), 1.0, literal(66.0))
), 0.0f)
.evaluate(10.0f, oneInteger, -1.0f)) << "Should interpolate TO the last stop.";
EXPECT_EQ(33.0f, PropertyExpression<float>(
interpolate(linear(), zoom(),
0.0, interpolate(linear(), number(get("property")), 1.0, literal(33.0)),
10.0, interpolate(linear(), number(get("property")), 1.0, literal(66.0))
), 0.0f)
.evaluate(0.0f, oneInteger, -1.0f)) << "Should interpolate TO the first stop";
}
TEST(PropertyExpression, Issue8460) {
PropertyExpression<float> fn1(
interpolate(linear(), zoom(),
15.0, interpolate(linear(), number(get("property")), 1.0, literal(0.0)),
15.2, interpolate(linear(), number(get("property")), 1.0, literal(600.0))
), 0.0f);
EXPECT_NEAR( 0.0f, fn1.evaluate(15.0f, oneInteger, -1.0f), 0.00);
EXPECT_NEAR(300.0f, fn1.evaluate(15.1f, oneInteger, -1.0f), 0.01);
EXPECT_NEAR(600.0f, fn1.evaluate(15.2f, oneInteger, -1.0f), 0.00);
EXPECT_NEAR(600.0f, fn1.evaluate(16.0f, oneInteger, -1.0f), 0.00);
PropertyExpression<float> fn2(
interpolate(linear(), zoom(),
15.0, interpolate(linear(), number(get("property")), 1.0, literal(0.0)),
15.2, interpolate(linear(), number(get("property")), 1.0, literal(300.0)),
18.0, interpolate(linear(), number(get("property")), 1.0, literal(600.0))
), 0.0f);
EXPECT_NEAR( 0.0f, fn2.evaluate(15.0f, oneInteger, -1.0f), 0.00);
EXPECT_NEAR(150.0f, fn2.evaluate(15.1f, oneInteger, -1.0f), 0.01);
EXPECT_NEAR(300.0f, fn2.evaluate(15.2f, oneInteger, -1.0f), 0.00);
EXPECT_NEAR(385.71f, fn2.evaluate(16.0f, oneInteger, -1.0f), 0.01);
EXPECT_NEAR(600.0f, fn2.evaluate(18.0f, oneInteger, -1.0f), 0.00);
EXPECT_NEAR(600.0f, fn2.evaluate(19.0f, oneInteger, -1.0f), 0.00);
}
TEST(PropertyExpression, TextSection) {
expression::Value formattedSection1 = 42.0;
PropertyExpression<double> ts1(textSection());
EXPECT_DOUBLE_EQ(42.0, ts1.evaluate(expression::EvaluationContext().withFormattedSection(&formattedSection1)));
expression::Value formattedSection2{"header"s};
PropertyExpression<std::string> ts2(textSection());
EXPECT_EQ("header"s, ts2.evaluate(expression::EvaluationContext().withFormattedSection(&formattedSection2)));
// Evaluates to default, T().
PropertyExpression<Color> ts3(textSection());
EXPECT_EQ(Color(), ts3.evaluate(expression::EvaluationContext().withFormattedSection(&formattedSection1)));
}
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