From f38b65fe2b1cc2d294789d11af2fa42e5b0b7865 Mon Sep 17 00:00:00 2001
From: Bruno de Oliveira Abinader <bruno@mapbox.com>
Date: Wed, 9 Aug 2017 19:54:04 +0300
Subject: [test] Added API.RecycleMapUpdateImages test

---
 cmake/test-files.cmake                             |   1 +
 test/api/recycle_map.cpp                           |  58 +++++++++++++++++++++
 .../recycle_map/default_marker/expected.png        | Bin 0 -> 1043 bytes
 .../recycle_map/flipped_marker/expected.png        | Bin 0 -> 1031 bytes
 4 files changed, 59 insertions(+)
 create mode 100644 test/api/recycle_map.cpp
 create mode 100644 test/fixtures/recycle_map/default_marker/expected.png
 create mode 100644 test/fixtures/recycle_map/flipped_marker/expected.png

diff --git a/cmake/test-files.cmake b/cmake/test-files.cmake
index 19412e6133..aaf0271bd4 100644
--- a/cmake/test-files.cmake
+++ b/cmake/test-files.cmake
@@ -17,6 +17,7 @@ set(MBGL_TEST_FILES
     test/api/api_misuse.test.cpp
     test/api/custom_layer.test.cpp
     test/api/query.test.cpp
+    test/api/recycle_map.cpp
 
     # gl
     test/gl/bucket.test.cpp
diff --git a/test/api/recycle_map.cpp b/test/api/recycle_map.cpp
new file mode 100644
index 0000000000..8cd622fe79
--- /dev/null
+++ b/test/api/recycle_map.cpp
@@ -0,0 +1,58 @@
+#include <mbgl/test/util.hpp>
+#include <mbgl/test/stub_file_source.hpp>
+
+#include <mbgl/gl/headless_frontend.hpp>
+#include <mbgl/map/map.hpp>
+#include <mbgl/renderer/backend_scope.hpp>
+#include <mbgl/storage/online_file_source.hpp>
+#include <mbgl/style/layers/symbol_layer.hpp>
+#include <mbgl/style/sources/geojson_source.hpp>
+#include <mbgl/style/image.hpp>
+#include <mbgl/style/style.hpp>
+#include <mbgl/util/default_thread_pool.hpp>
+#include <mbgl/util/exception.hpp>
+#include <mbgl/util/geometry.hpp>
+#include <mbgl/util/geojson.hpp>
+#include <mbgl/util/io.hpp>
+#include <mbgl/util/run_loop.hpp>
+
+using namespace mbgl;
+using namespace mbgl::style;
+
+
+TEST(API, RecycleMapUpdateImages) {
+    util::RunLoop loop;
+
+    StubFileSource fileSource;
+    ThreadPool threadPool(4);
+    float pixelRatio { 1 };
+
+    HeadlessFrontend frontend { pixelRatio, fileSource, threadPool };
+    auto map = std::make_unique<Map>(frontend, MapObserver::nullObserver(), frontend.getSize(),
+                                     pixelRatio, fileSource, threadPool, MapMode::Still);
+
+    EXPECT_TRUE(map);
+
+    auto loadStyle = [&](auto markerName, auto markerPath) {
+        auto source = std::make_unique<GeoJSONSource>("geometry");
+        source->setGeoJSON({ Point<double> { 0, 0 } });
+
+        auto layer = std::make_unique<SymbolLayer>("geometry", "geometry");
+        layer->setIconImage({ markerName });
+
+        map->getStyle().loadJSON(util::read_file("test/fixtures/api/empty.json"));
+        map->getStyle().addSource(std::move(source));
+        map->getStyle().addLayer(std::move(layer));
+        map->getStyle().addImage(std::make_unique<style::Image>(markerName, decodeImage(util::read_file(markerPath)), 1.0));
+    };
+
+    // default marker
+
+    loadStyle("default_marker", "test/fixtures/sprites/default_marker.png");
+    test::checkImage("test/fixtures/recycle_map/default_marker", frontend.render(*map), 0.0006, 0.1);
+
+    // flipped marker
+
+    loadStyle("flipped_marker", "test/fixtures/sprites/flipped_marker.png");
+    test::checkImage("test/fixtures/recycle_map/flipped_marker", frontend.render(*map), 0.0006, 0.1);
+}
diff --git a/test/fixtures/recycle_map/default_marker/expected.png b/test/fixtures/recycle_map/default_marker/expected.png
new file mode 100644
index 0000000000..a23b79f8d8
Binary files /dev/null and b/test/fixtures/recycle_map/default_marker/expected.png differ
diff --git a/test/fixtures/recycle_map/flipped_marker/expected.png b/test/fixtures/recycle_map/flipped_marker/expected.png
new file mode 100644
index 0000000000..3c4847f3a7
Binary files /dev/null and b/test/fixtures/recycle_map/flipped_marker/expected.png differ
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