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#include <mbgl/test/util.hpp>
#include <mbgl/test/stub_file_source.hpp>
#include <mbgl/test/stub_style_observer.hpp>
#include <mbgl/text/glyph_atlas.hpp>
#include <mbgl/util/run_loop.hpp>
#include <mbgl/util/string.hpp>
#include <mbgl/util/io.hpp>
#include <mbgl/util/logging.hpp>
using namespace mbgl;
class StubGlyphRequestor : public GlyphRequestor {
public:
void onGlyphsAvailable(GlyphPositionMap positions) override {
if (glyphsAvailable) glyphsAvailable(std::move(positions));
}
std::function<void (GlyphPositionMap)> glyphsAvailable;
};
class GlyphAtlasTest {
public:
util::RunLoop loop;
StubFileSource fileSource;
StubStyleObserver observer;
StubGlyphRequestor requestor;
GlyphAtlas glyphAtlas{ { 32, 32 }, fileSource };
void run(const std::string& url, GlyphDependencies dependencies) {
// Squelch logging.
Log::setObserver(std::make_unique<Log::NullObserver>());
glyphAtlas.setURL(url);
glyphAtlas.setObserver(&observer);
glyphAtlas.getGlyphs(requestor, std::move(dependencies));
loop.run();
}
void end() {
loop.stop();
}
};
TEST(GlyphAtlas, LoadingSuccess) {
GlyphAtlasTest test;
test.fileSource.glyphsResponse = [&] (const Resource& resource) {
EXPECT_EQ(Resource::Kind::Glyphs, resource.kind);
Response response;
response.data = std::make_shared<std::string>(util::read_file("test/fixtures/resources/glyphs.pbf"));
return response;
};
test.observer.glyphsError = [&] (const FontStack&, const GlyphRange&, std::exception_ptr) {
FAIL();
test.end();
};
test.observer.glyphsLoaded = [&] (const FontStack& fontStack, const GlyphRange& range) {
ASSERT_EQ(fontStack, FontStack {{"Test Stack"}});
ASSERT_EQ(range, GlyphRange(0, 255));
};
test.requestor.glyphsAvailable = [&] (GlyphPositionMap positions) {
const auto& testPositions = positions.at({{"Test Stack"}});
ASSERT_EQ(testPositions.size(), 3u);
ASSERT_EQ(testPositions.count(u'a'), 1u);
ASSERT_EQ(testPositions.count(u'å'), 1u);
ASSERT_EQ(testPositions.count(u' '), 1u);
ASSERT_TRUE(bool(testPositions.at(u' ')));
test.end();
};
test.run(
"test/fixtures/resources/glyphs.pbf",
GlyphDependencies {
{{{"Test Stack"}}, {u'a', u'å', u' '}}
});
}
TEST(GlyphAtlas, LoadingFail) {
GlyphAtlasTest test;
test.fileSource.glyphsResponse = [&] (const Resource&) {
Response response;
response.error = std::make_unique<Response::Error>(
Response::Error::Reason::Other,
"Failed by the test case");
return response;
};
test.observer.glyphsError = [&] (const FontStack& fontStack, const GlyphRange& glyphRange, std::exception_ptr error) {
EXPECT_EQ(fontStack, FontStack({"Test Stack"}));
EXPECT_EQ(glyphRange, GlyphRange(0, 255));
EXPECT_TRUE(error != nullptr);
EXPECT_EQ(util::toString(error), "Failed by the test case");
test.end();
};
test.requestor.glyphsAvailable = [&] (GlyphPositionMap) {
FAIL();
test.end();
};
test.run(
"test/fixtures/resources/glyphs.pbf",
GlyphDependencies {
{{{"Test Stack"}}, {u'a', u'å'}}
});
}
TEST(GlyphAtlas, LoadingCorrupted) {
GlyphAtlasTest test;
test.fileSource.glyphsResponse = [&] (const Resource&) {
Response response;
response.data = std::make_unique<std::string>("CORRUPTED");
return response;
};
test.observer.glyphsError = [&] (const FontStack& fontStack, const GlyphRange& glyphRange, std::exception_ptr error) {
EXPECT_EQ(fontStack, FontStack({"Test Stack"}));
EXPECT_EQ(glyphRange, GlyphRange(0, 255));
EXPECT_TRUE(error != nullptr);
EXPECT_EQ(util::toString(error), "unknown pbf field type exception");
test.end();
};
test.requestor.glyphsAvailable = [&] (GlyphPositionMap) {
FAIL();
test.end();
};
test.run(
"test/fixtures/resources/glyphs.pbf",
GlyphDependencies {
{{{"Test Stack"}}, {u'a', u'å'}}
});
}
TEST(GlyphAtlas, LoadingCancel) {
GlyphAtlasTest test;
test.fileSource.glyphsResponse = [&] (const Resource&) {
test.end();
return optional<Response>();
};
test.observer.glyphsLoaded = [&] (const FontStack&, const GlyphRange&) {
FAIL() << "Should never be called";
};
test.run(
"test/fixtures/resources/glyphs.pbf",
GlyphDependencies {
{{{"Test Stack"}}, {u'a', u'å'}}
});
}
TEST(GlyphAtlas, LoadingInvalid) {
GlyphAtlasTest test;
test.fileSource.glyphsResponse = [&] (const Resource& resource) {
EXPECT_EQ(Resource::Kind::Glyphs, resource.kind);
Response response;
response.data = std::make_shared<std::string>(util::read_file("test/fixtures/resources/fake_glyphs-0-255.pbf"));
return response;
};
test.observer.glyphsError = [&] (const FontStack&, const GlyphRange&, std::exception_ptr) {
FAIL();
test.end();
};
test.observer.glyphsLoaded = [&] (const FontStack& fontStack, const GlyphRange& range) {
ASSERT_EQ(fontStack, FontStack {{"Test Stack"}});
ASSERT_EQ(range, GlyphRange(0, 255));
};
test.requestor.glyphsAvailable = [&] (GlyphPositionMap positions) {
const auto& testPositions = positions.at({{"Test Stack"}});
ASSERT_EQ(testPositions.size(), 2u);
ASSERT_FALSE(bool(testPositions.at(u'A')));
ASSERT_TRUE(bool(testPositions.at(u'E')));
test.end();
};
test.run(
"test/fixtures/resources/glyphs.pbf",
GlyphDependencies {
{{{"Test Stack"}}, {u'A', u'E'}}
});
}
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