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#include <mbgl/test/util.hpp>
#include <mbgl/layout/merge_lines.hpp>
#include <mbgl/layout/symbol_feature.hpp>
const std::u16string aaa = u"a";
const std::u16string bbb = u"b";
using namespace mbgl;
TEST(MergeLines, SameText) {
// merges lines with the same text
std::vector<mbgl::SymbolFeature> input1 = {
{ FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}}}, aaa, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{{4, 0}, {5, 0}, {6, 0}}}, bbb, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{{8, 0}, {9, 0}}}, aaa, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{{2, 0}, {3, 0}, {4, 0}}}, aaa, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{{6, 0}, {7, 0}, {8, 0}}}, aaa, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{{5, 0}, {6, 0}}}, aaa, {}, {{0, 0}}, 0, 0 }
};
const std::vector<mbgl::SymbolFeature> expected1 = {
{ FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}, {3, 0}, {4, 0}}}, aaa, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{{4, 0}, {5, 0}, {6, 0}}}, bbb, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{{5, 0}, {6, 0}, {7, 0}, {8, 0}, {9, 0}}}, aaa, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{}}, aaa, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{}}, aaa, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{}}, aaa, {}, {{0, 0}}, 0, 0 }
};
mbgl::util::mergeLines(input1);
for (int i = 0; i < 6; i++) {
EXPECT_TRUE(input1[i].geometry == expected1[i].geometry);
}
}
TEST(MergeLines, BothEnds) {
// mergeLines handles merge from both ends
std::vector<mbgl::SymbolFeature> input2 = {
{ FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}}}, aaa, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{{4, 0}, {5, 0}, {6, 0}}}, aaa, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{{2, 0}, {3, 0}, {4, 0}}}, aaa, {}, {{0, 0}}, 0, 0 }
};
const std::vector<mbgl::SymbolFeature> expected2 = {
{ FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}, {3, 0}, {4, 0}, {5, 0}, {6, 0}}}, aaa, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{}}, aaa, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{}}, aaa, {}, {{0, 0}}, 0, 0 }
};
mbgl::util::mergeLines(input2);
for (int i = 0; i < 3; i++) {
EXPECT_TRUE(input2[i].geometry == expected2[i].geometry);
}
}
TEST(MergeLines, CircularLines) {
// mergeLines handles circular lines
std::vector<mbgl::SymbolFeature> input3 = {
{ FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}}}, aaa, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{{2, 0}, {3, 0}, {4, 0}}}, aaa, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{{4, 0}, {0, 0}}}, aaa, {}, {{0, 0}}, 0, 0 }
};
const std::vector<mbgl::SymbolFeature> expected3 = {
{ FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}, {3, 0}, {4, 0}, {0, 0}}}, aaa, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{}}, aaa, {}, {{0, 0}}, 0, 0 },
{ FeatureType::LineString, {{}}, aaa, {}, {{0, 0}}, 0, 0 }
};
mbgl::util::mergeLines(input3);
for (int i = 0; i < 3; i++) {
EXPECT_TRUE(input3[i].geometry == expected3[i].geometry);
}
}
TEST(MergeLines, EmptyOuterGeometry) {
std::vector<mbgl::SymbolFeature> input = {
{ FeatureType::LineString, {}, aaa, {}, {{0, 0}}, 0, 0 },
};
const std::vector<mbgl::SymbolFeature> expected = input;
mbgl::util::mergeLines(input);
EXPECT_EQ(expected[0].geometry, input[0].geometry);
}
TEST(MergeLines, EmptyInnerGeometry) {
std::vector<mbgl::SymbolFeature> input = {
{ FeatureType::LineString, {{}}, aaa, {}, {{0, 0}}, 0, 0 },
};
const std::vector<mbgl::SymbolFeature> expected = input;
mbgl::util::mergeLines(input);
EXPECT_EQ(expected[0].geometry, input[0].geometry);
}
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