Use doctest instead of Catch2 for tests

CMakeGraphVizOptions.cmake

@@ -2,6 +2,6 @@ set(GRAPHVIZ_GENERATE_PER_TARGET FALSE)
 set(GRAPHVIZ_GENERATE_DEPENDERS FALSE)
 set(GRAPHVIZ_OBJECT_LIBS FALSE)
 list(APPEND GRAPHVIZ_IGNORE_TARGETS cesium-native-tests)
-list(APPEND GRAPHVIZ_IGNORE_TARGETS "Catch2::*")
+list(APPEND GRAPHVIZ_IGNORE_TARGETS "doctest::*")
 list(APPEND GRAPHVIZ_IGNORE_TARGETS "lib*.lib")
 list(APPEND GRAPHVIZ_IGNORE_TARGETS "lib*.so")

CMakeLists.txt

@@ -56,7 +56,7 @@ set(PACKAGES_PRIVATE
 )
 
 # Packages only used for testing
-set(PACKAGES_TEST catch2)
+set(PACKAGES_TEST doctest)
 
 if(NOT VCPKG_MANIFEST_MODE)
     set(PACKAGES_ALL ${PACKAGES_PUBLIC})
@@ -247,7 +247,7 @@ list(APPEND CMAKE_PREFIX_PATH "${PACKAGE_BUILD_DIR}")
 # and imporeted library target ourselves. This is the case for modp_b64::modp_b64, picosha2::picosha2 and earcut. In
 # these cases, we *do* have the somewhat ugly and verbose details in the extern/CMakeLists.txt file.
 find_package(Async++ CONFIG REQUIRED)
-find_package(Catch2 CONFIG REQUIRED)
+find_package(doctest CONFIG REQUIRED)
 find_package(draco CONFIG REQUIRED)
 find_package(expected-lite CONFIG REQUIRED)
 find_package(glm CONFIG REQUIRED)

Cesium3DTiles/test/TestMetadataQuery.cpp

@@ -5,15 +5,15 @@
 #include <Cesium3DTiles/Schema.h>
 #include <CesiumUtility/JsonValue.h>
 
-#include <catch2/catch_test_macros.hpp>
+#include <doctest/doctest.h>
 
 #include <optional>
 
 using namespace Cesium3DTiles;
 using namespace CesiumUtility;
 
 TEST_CASE("MetadataQuery") {
-  SECTION("findFirstPropertyWithSemantic") {
+  SUBCASE("findFirstPropertyWithSemantic") {
     Schema schema{};
     Class& classDefinition =
         schema.classes.emplace("someClass", Class()).first->second;

Cesium3DTilesContent/test/TestB3dmToGltfConverter.cpp

@@ -8,7 +8,7 @@
 #include <CesiumGltf/MeshPrimitive.h>
 #include <CesiumGltf/Model.h>
 
-#include <catch2/catch_test_macros.hpp>
+#include <doctest/doctest.h>
 
 #include <cstddef>
 #include <filesystem>
@@ -17,7 +17,7 @@ using namespace Cesium3DTilesContent;
 using namespace CesiumGltf;
 
 TEST_CASE("B3dmToGltfConverter") {
-  SECTION("includes CESIUM_RTC extension in extensionsUsed") {
+  SUBCASE("includes CESIUM_RTC extension in extensionsUsed") {
     std::filesystem::path testFilePath = Cesium3DTilesSelection_TEST_DATA_DIR;
     testFilePath = testFilePath / "BatchTables" / "batchedWithJson.b3dm";
 
@@ -31,7 +31,7 @@ TEST_CASE("B3dmToGltfConverter") {
     CHECK(gltf.isExtensionRequired(ExtensionCesiumRTC::ExtensionName));
   }
 
-  SECTION("Index bufferViews created from Draco are valid") {
+  SUBCASE("Index bufferViews created from Draco are valid") {
     std::filesystem::path testFilePath = Cesium3DTilesSelection_TEST_DATA_DIR;
     testFilePath =
         testFilePath / "BatchTables" / "batchedWithBatchTable-draco.b3dm";

Cesium3DTilesContent/test/TestI3dmToGltfConverter.cpp

@@ -4,7 +4,7 @@
 #include <CesiumGltf/AccessorView.h>
 #include <CesiumGltf/ExtensionExtMeshGpuInstancing.h>
 
-#include <catch2/catch_test_macros.hpp>
+#include <doctest/doctest.h>
 #include <glm/ext/vector_float3.hpp>
 #include <glm/ext/vector_float4.hpp>
 
@@ -14,7 +14,7 @@ using namespace Cesium3DTilesContent;
 using namespace CesiumGltf;
 
 TEST_CASE("I3dmToGltfConverter") {
-  SECTION("loads a simple i3dm") {
+  SUBCASE("loads a simple i3dm") {
     std::filesystem::path testFilePath = Cesium3DTilesSelection_TEST_DATA_DIR;
     testFilePath = testFilePath / "i3dm" / "InstancedWithBatchTable" /
                    "instancedWithBatchTable.i3dm";
@@ -40,7 +40,7 @@ TEST_CASE("I3dmToGltfConverter") {
     CHECK(translations.size() == 25);
   }
 
-  SECTION("loads a simple i3dm with orientations") {
+  SUBCASE("loads a simple i3dm with orientations") {
     std::filesystem::path testFilePath = Cesium3DTilesSelection_TEST_DATA_DIR;
     testFilePath = testFilePath / "i3dm" / "InstancedOrientation" /
                    "instancedOrientation.i3dm";
@@ -73,7 +73,7 @@ TEST_CASE("I3dmToGltfConverter") {
     CHECK(rotations.size() == 25);
   }
 
-  SECTION("reports an error if the glTF is v1, which is unsupported") {
+  SUBCASE("reports an error if the glTF is v1, which is unsupported") {
     std::filesystem::path testFilePath = Cesium3DTilesSelection_TEST_DATA_DIR;
     testFilePath =
         testFilePath / "i3dm" / "ObsoleteGltf" / "instancedWithBatchTable.i3dm";

Cesium3DTilesContent/test/TestImplicitTilingUtilities.cpp

@@ -9,7 +9,7 @@
 #include <CesiumGeospatial/S2CellBoundingVolume.h>
 #include <CesiumGeospatial/S2CellID.h>
 
-#include <catch2/catch_test_macros.hpp>
+#include <doctest/doctest.h>
 #include <glm/ext/matrix_double3x3.hpp>
 #include <libmorton/morton.h>
 
@@ -24,7 +24,7 @@ using namespace CesiumGeometry;
 using namespace CesiumGeospatial;
 
 TEST_CASE("ImplicitTilingUtilities child tile iteration") {
-  SECTION("QuadtreeTileID") {
+  SUBCASE("QuadtreeTileID") {
     QuadtreeTileID parent(11, 2, 3);
 
     QuadtreeChildren children = ImplicitTilingUtilities::getChildren(parent);
@@ -55,7 +55,7 @@ TEST_CASE("ImplicitTilingUtilities child tile iteration") {
     CHECK(mismatch.second == expected.end());
   }
 
-  SECTION("OctreeTileID") {
+  SUBCASE("OctreeTileID") {
     OctreeTileID parent(11, 2, 3, 4);
 
     OctreeChildren children = ImplicitTilingUtilities::getChildren(parent);
@@ -93,7 +93,7 @@ TEST_CASE("ImplicitTilingUtilities child tile iteration") {
 }
 
 TEST_CASE("ImplicitTilingUtilities::resolveUrl") {
-  SECTION("quadtree") {
+  SUBCASE("quadtree") {
     QuadtreeTileID tileID(11, 2, 3);
     std::string url = ImplicitTilingUtilities::resolveUrl(
         "https://example.com",
@@ -102,7 +102,7 @@ TEST_CASE("ImplicitTilingUtilities::resolveUrl") {
     CHECK(url == "https://example.com/tiles/11/2/3");
   }
 
-  SECTION("octree") {
+  SUBCASE("octree") {
     OctreeTileID tileID(11, 2, 3, 4);
     std::string url = ImplicitTilingUtilities::resolveUrl(
         "https://example.com",
@@ -113,14 +113,14 @@ TEST_CASE("ImplicitTilingUtilities::resolveUrl") {
 }
 
 TEST_CASE("ImplicitTilingUtilities::computeMortonIndex") {
-  SECTION("quadtree") {
+  SUBCASE("quadtree") {
     QuadtreeTileID tileID(11, 2, 3);
     CHECK(
         ImplicitTilingUtilities::computeMortonIndex(tileID) ==
         libmorton::morton2D_64_encode(2, 3));
   }
 
-  SECTION("quadtree") {
+  SUBCASE("quadtree") {
     OctreeTileID tileID(11, 2, 3, 4);
     CHECK(
         ImplicitTilingUtilities::computeMortonIndex(tileID) ==
@@ -129,15 +129,15 @@ TEST_CASE("ImplicitTilingUtilities::computeMortonIndex") {
 }
 
 TEST_CASE("ImplicitTilingUtilities::computeRelativeMortonIndex") {
-  SECTION("quadtree") {
+  SUBCASE("quadtree") {
     QuadtreeTileID rootID(11, 2, 3);
     QuadtreeTileID tileID(12, 5, 6);
     CHECK(
         ImplicitTilingUtilities::computeRelativeMortonIndex(rootID, tileID) ==
         1);
   }
 
-  SECTION("octree") {
+  SUBCASE("octree") {
     OctreeTileID rootID(11, 2, 3, 4);
     OctreeTileID tileID(12, 5, 6, 8);
     CHECK(
@@ -147,7 +147,7 @@ TEST_CASE("ImplicitTilingUtilities::computeRelativeMortonIndex") {
 }
 
 TEST_CASE("ImplicitTilingUtilities::getSubtreeRootID") {
-  SECTION("quadtree") {
+  SUBCASE("quadtree") {
     QuadtreeTileID tileID(10, 2, 3);
     CHECK(
         ImplicitTilingUtilities::getSubtreeRootID(5, tileID) ==
@@ -157,7 +157,7 @@ TEST_CASE("ImplicitTilingUtilities::getSubtreeRootID") {
         QuadtreeTileID(8, 0, 0));
   }
 
-  SECTION("octree") {
+  SUBCASE("octree") {
     OctreeTileID tileID(10, 2, 3, 4);
     CHECK(
         ImplicitTilingUtilities::getSubtreeRootID(5, tileID) ==
@@ -169,7 +169,7 @@ TEST_CASE("ImplicitTilingUtilities::getSubtreeRootID") {
 }
 
 TEST_CASE("ImplicitTilingUtilities::absoluteTileIDToRelative") {
-  SECTION("quadtree") {
+  SUBCASE("quadtree") {
     CHECK(
         ImplicitTilingUtilities::absoluteTileIDToRelative(
             QuadtreeTileID(0, 0, 0),
@@ -184,7 +184,7 @@ TEST_CASE("ImplicitTilingUtilities::absoluteTileIDToRelative") {
             QuadtreeTileID(12, 5, 7)) == QuadtreeTileID(1, 1, 1));
   }
 
-  SECTION("octree") {
+  SUBCASE("octree") {
     CHECK(
         ImplicitTilingUtilities::absoluteTileIDToRelative(
             OctreeTileID(0, 0, 0, 0),
@@ -207,8 +207,8 @@ TEST_CASE("ImplicitTilingUtilities::computeLevelDenominator") {
 }
 
 TEST_CASE("ImplicitTilingUtilities::computeBoundingVolume") {
-  SECTION("OrientedBoundingBox") {
-    SECTION("quadtree") {
+  SUBCASE("OrientedBoundingBox") {
+    SUBCASE("quadtree") {
       OrientedBoundingBox root(glm::dvec3(1.0, 2.0, 3.0), glm::dmat3(10.0));
 
       OrientedBoundingBox l1x0y0 =
@@ -233,7 +233,7 @@ TEST_CASE("ImplicitTilingUtilities::computeBoundingVolume") {
       CHECK(l1x0y1.getLengths() == glm::dvec3(10.0, 10.0, 20.0));
     }
 
-    SECTION("octree") {
+    SUBCASE("octree") {
       OrientedBoundingBox root(glm::dvec3(1.0, 2.0, 3.0), glm::dmat3(10.0));
 
       OrientedBoundingBox l1x0y0z0 =
@@ -266,8 +266,8 @@ TEST_CASE("ImplicitTilingUtilities::computeBoundingVolume") {
     }
   }
 
-  SECTION("BoundingRegion") {
-    SECTION("quadtree") {
+  SUBCASE("BoundingRegion") {
+    SUBCASE("quadtree") {
       BoundingRegion root(
           GlobeRectangle(1.0, 2.0, 3.0, 4.0),
           10.0,
@@ -308,7 +308,7 @@ TEST_CASE("ImplicitTilingUtilities::computeBoundingVolume") {
       CHECK(l1x0y1.getMaximumHeight() == 20.0);
     }
 
-    SECTION("octree") {
+    SUBCASE("octree") {
       BoundingRegion root(
           GlobeRectangle(1.0, 2.0, 3.0, 4.0),
           10.0,
@@ -361,8 +361,8 @@ TEST_CASE("ImplicitTilingUtilities::computeBoundingVolume") {
     }
   }
 
-  SECTION("S2") {
-    SECTION("quadtree") {
+  SUBCASE("S2") {
+    SUBCASE("quadtree") {
       S2CellBoundingVolume root(
           S2CellID::fromQuadtreeTileID(1, QuadtreeTileID(0, 0, 0)),
           10.0,
@@ -406,7 +406,7 @@ TEST_CASE("ImplicitTilingUtilities::computeBoundingVolume") {
       CHECK(l1x0y1.getMaximumHeight() == 20.0);
     }
 
-    SECTION("octree") {
+    SUBCASE("octree") {
       S2CellBoundingVolume root(
           S2CellID::fromQuadtreeTileID(1, QuadtreeTileID(0, 0, 0)),
           10.0,
@@ -463,8 +463,8 @@ TEST_CASE("ImplicitTilingUtilities::computeBoundingVolume") {
     }
   }
 
-  SECTION("BoundingVolume") {
-    SECTION("quadtree") {
+  SUBCASE("BoundingVolume") {
+    SUBCASE("quadtree") {
       BoundingVolume root{};
 
       TileBoundingVolumes::setOrientedBoundingBox(
@@ -526,7 +526,7 @@ TEST_CASE("ImplicitTilingUtilities::computeBoundingVolume") {
       CHECK(maybeS2->getMaximumHeight() == 20.0);
     }
 
-    SECTION("octree") {
+    SUBCASE("octree") {
       BoundingVolume root{};
 
       TileBoundingVolumes::setOrientedBoundingBox(

Cesium3DTilesContent/test/TestPntsToGltfConverter.cpp

@@ -17,8 +17,7 @@
 #include <CesiumGltf/Node.h>
 #include <CesiumUtility/Math.h>
 
-#include <catch2/catch.hpp>
-#include <catch2/catch_test_macros.hpp>
+#include <doctest/doctest.h>
 #include <glm/ext/vector_double3.hpp>
 #include <glm/ext/vector_double4.hpp>
 #include <glm/ext/vector_float3.hpp>
@@ -34,6 +33,7 @@
 #include <string>
 #include <vector>
 
+using namespace doctest;
 using namespace CesiumGltf;
 using namespace Cesium3DTilesContent;
 using namespace CesiumUtility;