1 files changed, 73 insertions, 0 deletions
diff --git a/test/storage/offline.cpp b/test/storage/offline.cpp
new file mode 100644
index 0000000000..e8f78425f5
--- /dev/null
+++ b/test/storage/offline.cpp
@@ -0,0 +1,73 @@
+#include <mbgl/storage/offline.hpp>
+#include <mbgl/source/source_info.hpp>
+#include <mbgl/map/tile_id.hpp>
+
+#include <gtest/gtest.h>
+
+using namespace mbgl;
+
+static const LatLngBounds sanFrancisco = LatLngBounds::hull(
+    { 37.6609, -122.5744 },
+    { 37.8271, -122.3204 });
+
+static const LatLngBounds sanFranciscoWrapped = LatLngBounds::hull(
+    { 37.6609, 238.5744 },
+    { 37.8271, 238.3204 });
+
+TEST(OfflineTilePyramidRegionDefinition, TileCoverEmpty) {
+    OfflineTilePyramidRegionDefinition region("", LatLngBounds::empty(), 0, 20, 1.0);
+    SourceInfo info;
+
+    auto result = region.tileCover(SourceType::Vector, 512, info);
+    ASSERT_TRUE(result.empty());
+}
+
+TEST(OfflineTilePyramidRegionDefinition, TileCoverZoomIntersection) {
+    OfflineTilePyramidRegionDefinition region("", sanFrancisco, 2, 2, 1.0);
+    SourceInfo info;
+
+    info.minZoom = 0;
+    auto resultIntersection = region.tileCover(SourceType::Vector, 512, info);
+    ASSERT_EQ(1, resultIntersection.size());
+
+    info.minZoom = 3;
+    auto resultNoIntersection = region.tileCover(SourceType::Vector, 512, info);
+    ASSERT_TRUE(resultNoIntersection.empty());
+}
+
+TEST(OfflineTilePyramidRegionDefinition, TileCoverTileSize) {
+    OfflineTilePyramidRegionDefinition region("", LatLngBounds::world(), 0, 0, 1.0);
+    SourceInfo info;
+
+    auto result512 = region.tileCover(SourceType::Vector, 512, info);
+    ASSERT_EQ(1, result512.size());
+    ASSERT_EQ(0, result512[0].z);
+
+    auto result256 = region.tileCover(SourceType::Vector, 256, info);
+    ASSERT_EQ(4, result256.size());
+    ASSERT_EQ(1, result256[0].z);
+}
+
+TEST(OfflineTilePyramidRegionDefinition, TileCoverZoomRounding) {
+    OfflineTilePyramidRegionDefinition region("", sanFrancisco, 0.6, 0.7, 1.0);
+    SourceInfo info;
+
+    auto resultVector = region.tileCover(SourceType::Vector, 512, info);
+    ASSERT_EQ(1, resultVector.size());
+    ASSERT_EQ(0, resultVector[0].z);
+
+    auto resultRaster = region.tileCover(SourceType::Raster, 512, info);
+    ASSERT_EQ(1, resultRaster.size());
+    ASSERT_EQ(1, resultRaster[0].z);
+}
+
+TEST(OfflineTilePyramidRegionDefinition, TileCoverWrapped) {
+    OfflineTilePyramidRegionDefinition region("", sanFranciscoWrapped, 0, 0, 1.0);
+    SourceInfo info;
+
+    auto result = region.tileCover(SourceType::Vector, 512, info);
+    ASSERT_EQ(1, result.size());
+    ASSERT_EQ(0, result[0].z);
+    ASSERT_EQ(0, result[0].x);
+    ASSERT_EQ(0, result[0].y);
+}