Sprite store API

test/annotations/sprite_image.cpp

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+#include "../fixtures/util.hpp"
+
+#include <mbgl/annotation/sprite_image.hpp>
+#include <mbgl/util/exception.hpp>
+
+using namespace mbgl;
+
+TEST(Annotations, SpriteImageZeroWidth) {
+    try {
+        SpriteImage(0, 16, 2, "");
+        FAIL() << "Expected exception";
+    } catch (util::SpriteImageException& ex) {
+        EXPECT_STREQ("Sprite image dimensions may not be zero", ex.what());
+    }
+}
+
+TEST(Annotations, SpriteImageZeroHeight) {
+    try {
+        SpriteImage(16, 0, 2, "");
+        FAIL() << "Expected exception";
+    } catch (util::SpriteImageException& ex) {
+        EXPECT_STREQ("Sprite image dimensions may not be zero", ex.what());
+    }
+}
+
+TEST(Annotations, SpriteImageZeroRatio) {
+    try {
+        SpriteImage(16, 16, 0, "");
+        FAIL() << "Expected exception";
+    } catch (util::SpriteImageException& ex) {
+        EXPECT_STREQ("Sprite image dimensions may not be zero", ex.what());
+    }
+}
+
+TEST(Annotations, SpriteImageMismatchedData) {
+    try {
+        SpriteImage(16, 16, 2, "");
+        FAIL() << "Expected exception";
+    } catch (util::SpriteImageException& ex) {
+        EXPECT_STREQ("Sprite image pixel count mismatch", ex.what());
+    }
+}
+
+TEST(Annotations, SpriteImage) {
+    std::string pixels(32 * 24 * 4, '\0');
+    SpriteImage sprite(16, 12, 2, std::move(pixels));
+    EXPECT_EQ(16, sprite.width);
+    EXPECT_EQ(32, sprite.pixelWidth);
+    EXPECT_EQ(12, sprite.height);
+    EXPECT_EQ(24, sprite.pixelHeight);
+    EXPECT_EQ(2, sprite.ratio);
+    EXPECT_EQ(32u * 24 * 4, sprite.data.size());
+}
+
+TEST(Annotations, SpriteImageFractionalRatio) {
+    std::string pixels(20 * 12 * 4, '\0');
+    SpriteImage sprite(13, 8, 1.5, std::move(pixels));
+    EXPECT_EQ(13, sprite.width);
+    EXPECT_EQ(20, sprite.pixelWidth);
+    EXPECT_EQ(8, sprite.height);
+    EXPECT_EQ(12, sprite.pixelHeight);
+    EXPECT_EQ(1.5, sprite.ratio);
+    EXPECT_EQ(20u * 12 * 4, sprite.data.size());
+}