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#include <mbgl/test/util.hpp>
#include <mbgl/test/stub_geometry_tile_feature.hpp>
#include <mbgl/layout/merge_lines.hpp>
#include <mbgl/layout/symbol_feature.hpp>
#include <utility>
const std::u16string aaa = u"a";
const std::u16string bbb = u"b";
using namespace mbgl;
namespace {
PropertyMap properties;
LineString<int16_t> emptyLine;
}
class SymbolFeatureStub : public SymbolFeature {
public:
SymbolFeatureStub(optional<FeatureIdentifier> id_, FeatureType type_, GeometryCollection geometry_,
PropertyMap properties_, optional<std::u16string> text_,
optional<std::string> icon_, std::size_t index_) :
SymbolFeature(std::make_unique<StubGeometryTileFeature>(std::move(id_), type_, std::move(geometry_), std::move(properties_)))
{
text = std::move(text_);
icon = std::move(icon_);
index = index_;
}
};
TEST(MergeLines, SameText) {
// merges lines with the same text
std::vector<mbgl::SymbolFeature> input1;
input1.push_back(SymbolFeatureStub({}, FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}}}, properties, aaa, {}, 0));
input1.push_back(SymbolFeatureStub({}, FeatureType::LineString, {{{4, 0}, {5, 0}, {6, 0}}}, properties, bbb, {}, 0));
input1.push_back(SymbolFeatureStub({}, FeatureType::LineString, {{{8, 0}, {9, 0}}}, properties, aaa, {}, 0));
input1.push_back(SymbolFeatureStub({}, FeatureType::LineString, {{{2, 0}, {3, 0}, {4, 0}}}, properties, aaa, {}, 0));
input1.push_back(SymbolFeatureStub({}, FeatureType::LineString, {{{6, 0}, {7, 0}, {8, 0}}}, properties, aaa, {}, 0));
input1.push_back(SymbolFeatureStub({}, FeatureType::LineString, {{{5, 0}, {6, 0}}}, properties, aaa, {}, 0));
const std::vector<StubGeometryTileFeature> expected1 = {
{ {}, FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}, {3, 0}, {4, 0}}}, properties },
{ {}, FeatureType::LineString, {{{4, 0}, {5, 0}, {6, 0}}}, properties },
{ {}, FeatureType::LineString, {{{5, 0}, {6, 0}, {7, 0}, {8, 0}, {9, 0}}}, properties },
{ {}, FeatureType::LineString, { emptyLine }, properties },
{ {}, FeatureType::LineString, { emptyLine }, properties },
{ {}, FeatureType::LineString, { emptyLine }, properties }
};
mbgl::util::mergeLines(input1);
for (int i = 0; i < 6; i++) {
EXPECT_TRUE(input1[i].geometry == expected1[i].getGeometries());
}
}
TEST(MergeLines, BothEnds) {
// mergeLines handles merge from both ends
std::vector<mbgl::SymbolFeature> input2;
input2.push_back(SymbolFeatureStub { {}, FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}}}, properties, aaa, {}, 0 });
input2.push_back(SymbolFeatureStub { {}, FeatureType::LineString, {{{4, 0}, {5, 0}, {6, 0}}}, properties, aaa, {}, 0 });
input2.push_back(SymbolFeatureStub { {}, FeatureType::LineString, {{{2, 0}, {3, 0}, {4, 0}}}, properties, aaa, {}, 0 });
const std::vector<StubGeometryTileFeature> expected2 = {
{ {}, FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}, {3, 0}, {4, 0}, {5, 0}, {6, 0}}}, properties },
{ {}, FeatureType::LineString, { emptyLine }, properties },
{ {}, FeatureType::LineString, { emptyLine }, properties }
};
mbgl::util::mergeLines(input2);
for (int i = 0; i < 3; i++) {
EXPECT_TRUE(input2[i].geometry == expected2[i].getGeometries());
}
}
TEST(MergeLines, CircularLines) {
// mergeLines handles circular lines
std::vector<mbgl::SymbolFeature> input3;
input3.push_back(SymbolFeatureStub { {}, FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}}}, properties, aaa, {}, 0 });
input3.push_back(SymbolFeatureStub { {}, FeatureType::LineString, {{{2, 0}, {3, 0}, {4, 0}}}, properties, aaa, {}, 0 });
input3.push_back(SymbolFeatureStub { {}, FeatureType::LineString, {{{4, 0}, {0, 0}}}, properties, aaa, {}, 0 });
const std::vector<StubGeometryTileFeature> expected3 = {
{ {}, FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}, {3, 0}, {4, 0}, {0, 0}}}, properties },
{ {}, FeatureType::LineString, { emptyLine }, properties },
{ {}, FeatureType::LineString, { emptyLine }, properties }
};
mbgl::util::mergeLines(input3);
for (int i = 0; i < 3; i++) {
EXPECT_TRUE(input3[i].geometry == expected3[i].getGeometries());
}
}
TEST(MergeLines, EmptyOuterGeometry) {
std::vector<mbgl::SymbolFeature> input;
input.push_back(SymbolFeatureStub { {}, FeatureType::LineString, {}, properties, aaa, {}, 0 });
const std::vector<StubGeometryTileFeature> expected = { { {}, FeatureType::LineString, {}, properties } };
mbgl::util::mergeLines(input);
EXPECT_EQ(input[0].geometry, expected[0].getGeometries());
}
TEST(MergeLines, EmptyInnerGeometry) {
std::vector<mbgl::SymbolFeature> input;
input.push_back(SymbolFeatureStub { {}, FeatureType::LineString, {}, properties, aaa, {}, 0 });
const std::vector<StubGeometryTileFeature> expected = { { {}, FeatureType::LineString, {}, properties } };
mbgl::util::mergeLines(input);
EXPECT_EQ(input[0].geometry, expected[0].getGeometries());
}
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