1 files changed, 60 insertions, 0 deletions
diff --git a/test/algorithm/mock.hpp b/test/algorithm/mock.hpp
new file mode 100644
index 0000000000..89f51b15b8
--- /dev/null
+++ b/test/algorithm/mock.hpp
@@ -0,0 +1,60 @@
+#ifndef MBGL_TEST_MOCK
+#define MBGL_TEST_MOCK
+
+#include <cstdint>
+#include <string>
+#include <memory>
+#include <set>
+#include <map>
+
+#include <mbgl/tile/tile_id.hpp>
+
+struct MockSourceInfo {
+    uint8_t maxZoom = 16;
+    uint8_t minZoom = 0;
+};
+
+struct MockTileData;
+
+struct MockRenderable {
+    MockRenderable(mbgl::UnwrappedTileID id_, MockTileData& data_) : id(id_), data(data_) {}
+
+    const mbgl::UnwrappedTileID id;
+    MockTileData& data;
+
+    bool operator==(const MockRenderable& rhs) const {
+        return &data == &rhs.data;
+    }
+};
+
+::std::ostream& operator<<(::std::ostream& os, const MockRenderable&) {
+    return os << "Renderable{}";
+}
+
+struct MockSource {
+    MockSourceInfo info;
+    std::map<mbgl::OverscaledTileID, std::unique_ptr<MockTileData>> dataTiles;
+    std::set<mbgl::UnwrappedTileID> idealTiles;
+    std::map<mbgl::UnwrappedTileID, MockRenderable> renderables;
+
+    // Test API
+    inline MockTileData* createTileData(const mbgl::OverscaledTileID& tileID);
+};
+
+struct MockBucket {};
+
+
+struct MockTileData {
+    bool isReady() {
+        return ready;
+    }
+
+    bool ready = false;
+};
+
+MockTileData* MockSource::createTileData(const mbgl::OverscaledTileID& tileID) {
+    // Replace the existing MockTileData object, if any.
+    return (dataTiles[tileID] = std::make_unique<MockTileData>()).get();
+}
+
+#endif