[general] moving ios and android project under ./platform folder

test/algorithm/update_tile_masks.test.cpp

@@ -0,0 +1,116 @@
+#include <mbgl/test/util.hpp>
+#include <mbgl/algorithm/update_tile_masks.hpp>
+
+using namespace mbgl;
+
+namespace {
+
+class FakeTile {
+public:
+    FakeTile(TileMask mask_)
+        : mask(std::move(mask_)) {
+    }
+    void setMask(TileMask mask_) {
+        mask = std::move(mask_);
+    }
+
+    const bool usedByRenderedLayers = true;
+    TileMask mask;
+};
+
+bool operator==(const FakeTile& lhs, const FakeTile& rhs) {
+    return lhs.mask == rhs.mask;
+}
+
+} // namespace
+
+void validate(std::map<UnwrappedTileID, FakeTile> expected) {
+    auto actual = expected;
+    std::for_each(actual.begin(), actual.end(),
+                  [](auto& renderable) { renderable.second.mask.clear(); });
+
+    algorithm::updateTileMasks(actual);
+    EXPECT_EQ(expected, actual);
+}
+
+TEST(UpdateTileMasks, NoChildren) {
+    validate({
+        { UnwrappedTileID{ 0, 0, 0 }, TileMask{ CanonicalTileID{ 0, 0, 0 } } }
+    });
+
+    validate({
+        { UnwrappedTileID{ 4, 3, 8 }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+    });
+
+    validate({
+        { UnwrappedTileID{ 1, 0, 0 }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+        { UnwrappedTileID{ 1, 1, 1 }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+    });
+
+    validate({
+        { UnwrappedTileID{ 1, 0, 0 }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+        { UnwrappedTileID{ 2, 2, 3 }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+    });
+}
+
+TEST(UpdateTileMasks, ParentAndFourChildren) {
+    validate({
+        // Mask is empty (== not rendered!) because we have four covering children.
+        { UnwrappedTileID{ 0, 0, 0 }, TileMask{} },
+        // All four covering children
+        { UnwrappedTileID{ 1, 0, 0 }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+        { UnwrappedTileID{ 1, 0, 1 }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+        { UnwrappedTileID{ 1, 1, 0 }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+        { UnwrappedTileID{ 1, 1, 1 }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+    });
+}
+
+TEST(UpdateTileMasks, OneChild) {
+    validate({
+        { UnwrappedTileID{ 0, 0, 0 },
+            // Only render the three children that aren't covering the other tile.
+            TileMask{ CanonicalTileID{ 1, 0, 1 }, CanonicalTileID{ 1, 1, 0 },
+                      CanonicalTileID{ 1, 1, 1 } } },
+        { UnwrappedTileID{ 1, 0, 0 }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+    });
+}
+
+TEST(UpdateTileMasks, Complex) {
+    validate({
+        { UnwrappedTileID{ 0, 0, 0 },
+            TileMask{ CanonicalTileID{ 1, 0, 1 }, CanonicalTileID{ 1, 1, 0 },
+                      CanonicalTileID{ 2, 2, 3 }, CanonicalTileID{ 2, 3, 2 },
+                      CanonicalTileID{ 3, 6, 7 }, CanonicalTileID{ 3, 7, 6 } } },
+        { UnwrappedTileID{ 0, { 1, 0, 0 } }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+        { UnwrappedTileID{ 0, { 2, 2, 2 } }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+        { UnwrappedTileID{ 0, { 3, 7, 7 } }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+        { UnwrappedTileID{ 0, { 3, 6, 6 } }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+    });
+
+    validate({
+        { UnwrappedTileID{ 0, 0, 0 },
+            TileMask{ CanonicalTileID{ 1, 0, 1 }, CanonicalTileID{ 1, 1, 0 },
+                      CanonicalTileID{ 1, 1, 1 }, CanonicalTileID{ 2, 0, 0 },
+                      CanonicalTileID{ 2, 0, 1 }, CanonicalTileID{ 2, 1, 0 },
+                      CanonicalTileID{ 3, 2, 3 }, CanonicalTileID{ 3, 3, 2 },
+                      CanonicalTileID{ 3, 3, 3 }, CanonicalTileID{ 4, 4, 5 },
+                      CanonicalTileID{ 4, 5, 4 }, CanonicalTileID{ 4, 5, 5 } } },
+        { UnwrappedTileID{ 4, 4, 4 }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+    });
+
+    validate({
+        { UnwrappedTileID{ 12, 1028, 1456 },
+            TileMask{ CanonicalTileID{ 1, 1, 1 }, CanonicalTileID{ 2, 3, 0 },
+                      CanonicalTileID{ 2, 3, 1 } } },
+        { UnwrappedTileID{ 13, 2056, 2912 },
+            TileMask{ CanonicalTileID{ 1, 0, 1 }, CanonicalTileID{ 1, 1, 0 },
+                      CanonicalTileID{ 1, 1, 1 } } },
+        { UnwrappedTileID{ 13, 2056, 2913 },
+            TileMask{ CanonicalTileID{ 1, 0, 0 }, CanonicalTileID{ 1, 1, 0 },
+                      CanonicalTileID{ 1, 1, 1 } } },
+        { UnwrappedTileID{ 14, 4112, 5824 }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+        { UnwrappedTileID{ 14, 4112, 5827 }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+        { UnwrappedTileID{ 14, 4114, 5824 }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+        { UnwrappedTileID{ 14, 4114, 5825 }, TileMask{ CanonicalTileID{ 0, 0, 0 } } },
+    });
+}