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#include <mbgl/test/util.hpp>
#include <mbgl/style/conversion.hpp>
#include <mbgl/style/rapidjson_conversion.hpp>
#include <mbgl/style/conversion/constant.hpp>
#include <mbgl/style/conversion/function.hpp>
#include <mbgl/util/rapidjson.hpp>
using namespace mbgl;
using namespace mbgl::style;
using namespace mbgl::style::conversion;
auto parseFunction(const std::string& src) {
JSDocument doc;
doc.Parse<0>(src);
return convert<Function<float>>(doc);
}
TEST(StyleConversion, Function) {
auto fn1 = parseFunction("{\"stops\":[]}");
ASSERT_FALSE(fn1);
ASSERT_EQ("function must have at least one stop", fn1.error().message);
auto fn2 = parseFunction("{\"stops\":[1]}");
ASSERT_FALSE(fn2);
ASSERT_EQ("function stop must be an array", fn2.error().message);
auto fn3 = parseFunction("{\"stops\":[[]]}");
ASSERT_FALSE(fn3);
ASSERT_EQ("function stop must have two elements", fn3.error().message);
auto fn4 = parseFunction("{\"stops\":[[-1,-1]]}");
ASSERT_TRUE(bool(fn4));
auto fn5 = parseFunction("{\"stops\":[[0,1,2]]}");
ASSERT_FALSE(fn5);
ASSERT_EQ("function stop must have two elements", fn5.error().message);
auto fn6 = parseFunction("{\"stops\":[[0,\"x\"]]}");
ASSERT_FALSE(fn6);
ASSERT_EQ("value must be a number", fn6.error().message);
auto fn7 = parseFunction("{}");
ASSERT_FALSE(fn7);
ASSERT_EQ("function value must specify stops", fn7.error().message);
auto fn8 = parseFunction("[]");
ASSERT_FALSE(fn8);
ASSERT_EQ("function must be an object", fn8.error().message);
auto fn9 = parseFunction("{\"stops\":[[0,0]],\"base\":false}");
ASSERT_FALSE(fn9);
ASSERT_EQ("function base must be a number", fn9.error().message);
}
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