tests: Add unit tests for getElementTypes()

tests/src/Mod/Mesh/App/MeshFeature.cpp

@@ -0,0 +1,40 @@
+#include "gtest/gtest.h"
+#include <src/App/InitApplication.h>
+#include <Mod/Mesh/App/MeshFeature.h>
+
+class MeshFeatureTest: public ::testing::Test
+{
+protected:
+    static void SetUpTestSuite()
+    {
+        tests::initApplication();
+    }
+
+    void SetUp() override
+    {}
+
+    void TearDown() override
+    {}
+};
+
+// NOLINTBEGIN(cppcoreguidelines-*,readability-*)
+TEST_F(MeshFeatureTest, getElementTypes)
+{
+    Mesh::Feature mf;
+    std::vector<const char*> types = mf.getElementTypes();
+
+    EXPECT_EQ(types.size(), 2);
+    EXPECT_STREQ(types[0], "Mesh");
+    EXPECT_STREQ(types[1], "Segment");
+}
+
+TEST_F(MeshFeatureTest, getComplexElementTypes)
+{
+    Mesh::MeshObject mf;
+    std::vector<const char*> types = mf.getElementTypes();
+
+    EXPECT_EQ(types.size(), 2);
+    EXPECT_STREQ(types[0], "Mesh");
+    EXPECT_STREQ(types[1], "Segment");
+}
+// NOLINTEND(cppcoreguidelines-*,readability-*)