1 files changed, 123 insertions, 0 deletions
diff --git a/test/test_geo_json.cc b/test/test_geo_json.cc
new file mode 100644
index 0000000..e466e75
--- /dev/null
+++ b/test/test_geo_json.cc
@@ -0,0 +1,123 @@
+#include "common.hh"
+
+#include "file_test.hh"
+#include "geo_json.hh"
+#include "logger.hh"
+
+#include <gtest/gtest.h>
+
+namespace {
+
+class GeoJsonTest : public FileTest {
+public:
+  std::unique_ptr<GeoJson> load(std::string_view data) {
+    write(data);
+    close();
+    return GeoJson::create(logger_, path());
+  }
+
+private:
+  std::shared_ptr<Logger> logger_{Logger::create_null()};
+};
+
+}  // namespace
+
+TEST_F(GeoJsonTest, empty) {
+  auto geo_json = load("");
+
+  auto opt = geo_json->get_data(0.0, 0.0, "prop0");
+  EXPECT_FALSE(opt.has_value());
+}
+
+TEST_F(GeoJsonTest, sanity) {
+  auto geo_json = load(
+      "{"
+      "  \"type\": \"FeatureCollection\","
+      "  \"features\": ["
+      "  {"
+      "    \"type\": \"Feature\","
+      "    \"geometry\": {"
+      "      \"type\": \"Polygon\","
+      "      \"coordinates\": ["
+      "        ["
+      "          [100.0, 0.0], [101.0, 0.0], [101.0, 1.0],"
+      "          [100.0, 1.0], [100.0, 0.0]"
+      "        ]"
+      "      ]"
+      "    },"
+      "    \"properties\": {"
+      "      \"prop0\": \"value0\","
+      "      \"prop1\": { \"this\": \"that\" }"
+      "    }"
+      "  }"
+      "  ]"
+      "}");
+
+  auto opt = geo_json->get_data(0.0, 0.0, "prop0");
+  EXPECT_FALSE(opt.has_value());
+
+  opt = geo_json->get_data(0.5, 100.5, "prop0");
+  EXPECT_TRUE(opt.has_value());
+  if (opt.has_value()) {
+    EXPECT_EQ("value0", opt.value());
+  }
+
+  opt = geo_json->get_data(0.0, 100.0, "prop0");
+  EXPECT_TRUE(opt.has_value());
+  if (opt.has_value()) {
+    EXPECT_EQ("value0", opt.value());
+  }
+
+  opt = geo_json->get_data(0.5, 100.5, "prop1");
+  EXPECT_FALSE(opt.has_value());
+}
+
+TEST_F(GeoJsonTest, hole) {
+  auto geo_json = load(
+      "{"
+      "  \"type\": \"FeatureCollection\","
+      "  \"features\": ["
+      "  {"
+      "    \"type\": \"Feature\","
+      "    \"geometry\": {"
+      "      \"type\": \"Polygon\","
+      "      \"coordinates\": ["
+      "        ["
+      "          [100.0, 0.0], [101.0, 0.0], [101.0, 1.0],"
+      "          [100.0, 1.0], [100.0, 0.0]"
+      "        ],"
+      "        ["
+      "          [100.25, 0.25], [100.75, 0.25], [100.75, 0.75],"
+      "          [100.25, 0.75], [100.25, 0.25]"
+      "        ]"
+      "      ]"
+      "    },"
+      "    \"properties\": {"
+      "      \"prop0\": \"value0\""
+      "    }"
+      "  }"
+      "  ]"
+      "}");
+
+  auto opt = geo_json->get_data(0.5, 100.5, "prop0");
+  EXPECT_FALSE(opt.has_value());
+
+  opt = geo_json->get_data(0.0, 100.0, "prop0");
+  EXPECT_TRUE(opt.has_value());
+  if (opt.has_value()) {
+    EXPECT_EQ("value0", opt.value());
+  }
+
+  opt = geo_json->get_data(0.1, 100.20, "prop0");
+  EXPECT_TRUE(opt.has_value());
+  if (opt.has_value()) {
+    EXPECT_EQ("value0", opt.value());
+  }
+}
+
+TEST_F(GeoJsonTest, bad) {
+  auto geo_json = load(std::string(1000, '{'));
+
+  auto opt = geo_json->get_data(0.0, 0.0, "prop0");
+  EXPECT_FALSE(opt.has_value());
+}