[test] add .test.cpp suffix to test case files

1 files changed, 378 insertions, 0 deletions

diff --git a/test/map/map.test.cpp b/test/map/map.test.cpp
new file mode 100644
index 0000000000..12d4ff2bcd
--- /dev/null
+++ b/test/map/map.test.cpp
@@ -0,0 +1,378 @@
+#include <mbgl/test/util.hpp>
+#include <mbgl/test/stub_file_source.hpp>
+#include <mbgl/test/fake_file_source.hpp>
+#include <mbgl/test/fixture_log_observer.hpp>
+
+#include <mbgl/map/map.hpp>
+#include <mbgl/platform/default/headless_view.hpp>
+#include <mbgl/platform/default/headless_display.hpp>
+#include <mbgl/sprite/sprite_image.hpp>
+#include <mbgl/storage/network_status.hpp>
+#include <mbgl/storage/default_file_source.hpp>
+#include <mbgl/util/image.hpp>
+#include <mbgl/util/io.hpp>
+#include <mbgl/util/run_loop.hpp>
+#include <mbgl/style/layers/background_layer.hpp>
+#include <mbgl/util/color.hpp>
+
+using namespace mbgl;
+using namespace mbgl::style;
+using namespace std::literals::string_literals;
+
+struct MapTest {
+    util::RunLoop runLoop;
+    std::shared_ptr<HeadlessDisplay> display { std::make_shared<mbgl::HeadlessDisplay>() };
+    HeadlessView view { display, 1 };
+    StubFileSource fileSource;
+};
+
+TEST(Map, Offline) {
+    MapTest test;
+    DefaultFileSource fileSource(":memory:", ".");
+
+    auto expiredItem = [] (const std::string& path) {
+        Response response;
+        response.data = std::make_shared<std::string>(util::read_file("test/fixtures/map/offline/"s + path));
+        response.expires = Timestamp{ Seconds(0) };
+        return response;
+    };
+
+    const std::string prefix = "http://127.0.0.1:3000/";
+    fileSource.put(Resource::style(prefix + "style.json"), expiredItem("style.json"));
+    fileSource.put(Resource::source(prefix + "streets.json"), expiredItem("streets.json"));
+    fileSource.put(Resource::spriteJSON(prefix + "sprite", 1.0), expiredItem("sprite.json"));
+    fileSource.put(Resource::spriteImage(prefix + "sprite", 1.0), expiredItem("sprite.png"));
+    fileSource.put(Resource::tile(prefix + "{z}-{x}-{y}.vector.pbf", 1.0, 0, 0, 0, Tileset::Scheme::XYZ), expiredItem("0-0-0.vector.pbf"));
+    fileSource.put(Resource::glyphs(prefix + "{fontstack}/{range}.pbf", {{"Helvetica"}}, {0, 255}), expiredItem("glyph.pbf"));
+    NetworkStatus::Set(NetworkStatus::Status::Offline);
+
+    Map map(test.view, fileSource, MapMode::Still);
+    map.setStyleURL(prefix + "style.json");
+
+    test::checkImage("test/fixtures/map/offline",
+                     test::render(map),
+                     0.0015,
+                     0.1);
+
+    NetworkStatus::Set(NetworkStatus::Status::Online);
+}
+
+TEST(Map, SetStyleInvalidJSON) {
+    MapTest test;
+
+    Log::setObserver(std::make_unique<FixtureLogObserver>());
+
+    bool fail = false;
+    test.view.setMapChangeCallback([&](MapChange change) {
+        if (change == mbgl::MapChangeDidFailLoadingMap) {
+            fail = true;
+        }
+    });
+
+    {
+        Map map(test.view, test.fileSource, MapMode::Still);
+        map.setStyleJSON("invalid");
+    }
+
+    EXPECT_TRUE(fail);
+
+    auto observer = Log::removeObserver();
+    auto flo = dynamic_cast<FixtureLogObserver*>(observer.get());
+    EXPECT_EQ(1u, flo->count({ EventSeverity::Error, Event::ParseStyle, -1,
+        "Failed to parse style: 0 - Invalid value." }));
+    auto unchecked = flo->unchecked();
+    EXPECT_TRUE(unchecked.empty()) << unchecked;
+}
+
+TEST(Map, SetStyleInvalidURL) {
+    MapTest test;
+
+    test.fileSource.styleResponse = [] (const Resource&) {
+        Response response;
+        response.error = std::make_unique<Response::Error>(
+            Response::Error::Reason::Other,
+            "Failed by the test case");
+        return response;
+    };
+
+    test.view.setMapChangeCallback([&](MapChange change) {
+        if (change == mbgl::MapChangeDidFailLoadingMap) {
+            test.runLoop.stop();
+        }
+    });
+
+    Map map(test.view, test.fileSource, MapMode::Still);
+    map.setStyleURL("mapbox://bar");
+
+    test.runLoop.run();
+}
+
+TEST(Map, DoubleStyleLoad) {
+    MapTest test;
+
+    Map map(test.view, test.fileSource, MapMode::Still);
+    map.setStyleJSON("");
+    map.setStyleJSON("");
+}
+
+TEST(Map, StyleFresh) {
+    // The map should not revalidate fresh styles.
+
+    MapTest test;
+    FakeFileSource fileSource;
+
+    Map map(test.view, fileSource, MapMode::Still);
+    map.setStyleURL("mapbox://styles/test");
+    EXPECT_EQ(1u, fileSource.requests.size());
+
+    Response response;
+    response.data = std::make_shared<std::string>(util::read_file("test/fixtures/api/empty.json"));
+    response.expires = Timestamp::max();
+
+    fileSource.respond(Resource::Style, response);
+    EXPECT_EQ(0u, fileSource.requests.size());
+}
+
+TEST(Map, StyleExpired) {
+    // The map should allow expired styles to be revalidated, so long as no mutations are made.
+
+    using namespace std::chrono_literals;
+
+    MapTest test;
+    FakeFileSource fileSource;
+
+    Map map(test.view, fileSource, MapMode::Still);
+    map.setStyleURL("mapbox://styles/test");
+    EXPECT_EQ(1u, fileSource.requests.size());
+
+    Response response;
+    response.data = std::make_shared<std::string>(util::read_file("test/fixtures/api/empty.json"));
+    response.expires = util::now() - 1h;
+
+    fileSource.respond(Resource::Style, response);
+    EXPECT_EQ(1u, fileSource.requests.size());
+
+    map.addLayer(std::make_unique<style::BackgroundLayer>("bg"));
+    EXPECT_EQ(1u, fileSource.requests.size());
+
+    fileSource.respond(Resource::Style, response);
+    EXPECT_EQ(0u, fileSource.requests.size());
+    EXPECT_NE(nullptr, map.getLayer("bg"));
+}
+
+TEST(Map, StyleExpiredWithAnnotations) {
+    // Adding an annotation should not prevent revalidation of an expired style.
+
+    using namespace std::chrono_literals;
+
+    MapTest test;
+    FakeFileSource fileSource;
+
+    Map map(test.view, fileSource, MapMode::Still);
+    map.setStyleURL("mapbox://styles/test");
+    EXPECT_EQ(1u, fileSource.requests.size());
+
+    Response response;
+    response.data = std::make_shared<std::string>(util::read_file("test/fixtures/api/empty.json"));
+    response.expires = util::now() - 1h;
+
+    fileSource.respond(Resource::Style, response);
+    EXPECT_EQ(1u, fileSource.requests.size());
+
+    map.addAnnotation(LineAnnotation { LineString<double> {{ { 0, 0 }, { 10, 10 } }} });
+    EXPECT_EQ(1u, fileSource.requests.size());
+
+    fileSource.respond(Resource::Style, response);
+    EXPECT_EQ(1u, fileSource.requests.size());
+}
+
+TEST(Map, StyleEarlyMutation) {
+    // An early mutation should not prevent the initial style load.
+
+    MapTest test;
+    FakeFileSource fileSource;
+
+    Map map(test.view, fileSource, MapMode::Still);
+    map.setStyleURL("mapbox://styles/test");
+    map.addLayer(std::make_unique<style::BackgroundLayer>("bg"));
+
+    Response response;
+    response.data = std::make_shared<std::string>(util::read_file("test/fixtures/api/water.json"));
+    fileSource.respond(Resource::Style, response);
+
+    EXPECT_EQ(0u, fileSource.requests.size());
+    EXPECT_NE(nullptr, map.getLayer("water"));
+}
+
+TEST(Map, StyleLoadedSignal) {
+    MapTest test;
+    Map map(test.view, test.fileSource, MapMode::Still);
+    
+    // The map should emit a signal on style loaded
+    bool emitted = false;
+    test.view.setMapChangeCallback([&](MapChange change) {
+        if (change == mbgl::MapChangeDidFinishLoadingStyle) {
+            emitted = true;
+        }
+    });
+    map.setStyleJSON(util::read_file("test/fixtures/api/empty.json"));
+    EXPECT_TRUE(emitted);
+    
+    // But not when the style couldn't be parsed
+    emitted = false;
+    map.setStyleJSON("invalid");
+    EXPECT_FALSE(emitted);
+}
+
+TEST(Map, AddLayer) {
+    MapTest test;
+
+    Map map(test.view, test.fileSource, MapMode::Still);
+    map.setStyleJSON(util::read_file("test/fixtures/api/empty.json"));
+
+    auto layer = std::make_unique<BackgroundLayer>("background");
+    layer->setBackgroundColor({{ 1, 0, 0, 1 }});
+    map.addLayer(std::move(layer));
+
+    test::checkImage("test/fixtures/map/add_layer", test::render(map));
+}
+
+TEST(Map, RemoveLayer) {
+    MapTest test;
+
+    Map map(test.view, test.fileSource, MapMode::Still);
+    map.setStyleJSON(util::read_file("test/fixtures/api/empty.json"));
+
+    auto layer = std::make_unique<BackgroundLayer>("background");
+    layer->setBackgroundColor({{ 1, 0, 0, 1 }});
+    map.addLayer(std::move(layer));
+    map.removeLayer("background");
+
+    test::checkImage("test/fixtures/map/remove_layer", test::render(map));
+}
+
+TEST(Map, DisabledSources) {
+    MapTest test;
+
+    // Always load the same image tile for raster layers.
+    test.fileSource.response = [] (const Resource& res) -> optional<Response> {
+        if (res.url == "asset://tile.png") {
+            Response response;
+            response.data = std::make_shared<std::string>(
+                util::read_file("test/fixtures/map/disabled_layers/tile.png"));
+            return {std::move(response)};
+        }
+        return {};
+    };
+
+    Map map(test.view, test.fileSource, MapMode::Still);
+    map.setZoom(1);
+
+    // This stylesheet has two raster layers, one that starts at zoom 1, the other at zoom 0.
+    // We first render a map at zoom level 1, which should show both layers (both are "visible" due
+    // to an opacity of 0.5). Then, we are zooming back out to a zoom level of 0.5 and rerender.
+    // The "raster1" layer should not be visible anymore since it has minzoom 1, while "raster2"
+    // should still be there. Both layers have a distinct color through "raster-hue-rotate".
+    map.setStyleJSON(R"STYLE(
+{
+  "version": 8,
+  "name": "Test",
+  "sources": {
+    "raster": {
+      "type": "raster",
+      "tiles": [ "asset://tile.png" ],
+      "tileSize": 256
+    }
+  },
+  "layers": [{
+    "id": "background",
+    "type": "background",
+    "paint": {
+      "background-color": "white"
+    }
+  }, {
+    "id": "raster1",
+    "type": "raster",
+    "source": "raster",
+    "minzoom": 0
+  }, {
+    "id": "raster2",
+    "type": "raster",
+    "source": "raster",
+    "minzoom": 1,
+    "paint": {
+      "raster-hue-rotate": 180
+    }
+  }]
+}
+)STYLE");
+
+    test::checkImage("test/fixtures/map/disabled_layers/first", test::render(map));
+    map.setZoom(0.5);
+    test::checkImage("test/fixtures/map/disabled_layers/second", test::render(map));
+}
+
+TEST(Map, Classes) {
+    MapTest test;
+
+    Map map(test.view, test.fileSource, MapMode::Still);
+    map.setStyleJSON(util::read_file("test/fixtures/api/empty.json"));
+
+    EXPECT_FALSE(map.getTransitionOptions().duration);
+
+    auto duration = mbgl::Duration(mbgl::Milliseconds(300));
+    map.setTransitionOptions({ duration });
+    EXPECT_EQ(map.getTransitionOptions().duration, duration);
+
+    map.addClass("test");
+    EXPECT_TRUE(map.hasClass("test"));
+
+    map.removeClass("test");
+    EXPECT_TRUE(map.getClasses().empty());
+
+    std::vector<std::string> classes = { "foo", "bar" };
+    map.setClasses(classes);
+    EXPECT_FALSE(map.hasClass("test"));
+    EXPECT_TRUE(map.hasClass("foo"));
+    EXPECT_TRUE(map.hasClass("bar"));
+
+    // Does nothing - same style JSON.
+    map.setStyleJSON(util::read_file("test/fixtures/api/empty.json"));
+    EXPECT_TRUE(map.hasClass("foo"));
+    EXPECT_EQ(map.getTransitionOptions().duration, duration);
+
+    map.setStyleJSON(util::read_file("test/fixtures/api/water.json"));
+    EXPECT_TRUE(map.getClasses().empty());
+    EXPECT_FALSE(map.getTransitionOptions().duration);
+}
+
+TEST(Map, AddImage) {
+    MapTest test;
+
+    Map map(test.view, test.fileSource, MapMode::Still);
+    auto decoded1 = decodeImage(util::read_file("test/fixtures/sprites/default_marker.png"));
+    auto decoded2 = decodeImage(util::read_file("test/fixtures/sprites/default_marker.png"));
+    auto image1 = std::make_unique<SpriteImage>(std::move(decoded1), 1.0);
+    auto image2 = std::make_unique<SpriteImage>(std::move(decoded2), 1.0);
+
+    // No-op.
+    map.addImage("test-icon", std::move(image1));
+
+    map.setStyleJSON(util::read_file("test/fixtures/api/icon_style.json"));
+    map.addImage("test-icon", std::move(image2));
+    test::checkImage("test/fixtures/map/add_icon", test::render(map));
+}
+
+TEST(Map, RemoveImage) {
+    MapTest test;
+
+    Map map(test.view, test.fileSource, MapMode::Still);
+    auto decoded = decodeImage(util::read_file("test/fixtures/sprites/default_marker.png"));
+    auto image = std::make_unique<SpriteImage>(std::move(decoded), 1.0);
+
+    map.setStyleJSON(util::read_file("test/fixtures/api/icon_style.json"));
+    map.addImage("test-icon", std::move(image));
+    map.removeImage("test-icon");
+    test::checkImage("test/fixtures/map/remove_icon", test::render(map));
+}
+