2 files changed, 20 insertions, 4 deletions
diff --git a/test/unit/UnitTester.vcxproj b/test/unit/UnitTester.vcxproj
index 0c4d2fb5f..361f41083 100644
--- a/test/unit/UnitTester.vcxproj
+++ b/test/unit/UnitTester.vcxproj
@@ -87,7 +87,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS=1;_HAS_AUTO_PTR_ETC=1;_SCL_SECURE_NO_WARNINGS=1;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS=1;_HAS_AUTO_PTR_ETC=1;_SCL_SECURE_NO_WARNINGS=1;CHECK_CORRECTNESS;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>..\..\include\;..\..\src\;..\..\lexlib\</AdditionalIncludeDirectories>
       <LanguageStandard>stdcpp17</LanguageStandard>
     </ClCompile>
@@ -102,7 +102,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS=1;_HAS_AUTO_PTR_ETC=1;_SCL_SECURE_NO_WARNINGS=1;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS=1;_HAS_AUTO_PTR_ETC=1;_SCL_SECURE_NO_WARNINGS=1;CHECK_CORRECTNESS;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>..\..\include\;..\..\src\;..\..\lexlib\</AdditionalIncludeDirectories>
       <LanguageStandard>stdcpp17</LanguageStandard>
     </ClCompile>
@@ -119,7 +119,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS=1;_HAS_AUTO_PTR_ETC=1;_SCL_SECURE_NO_WARNINGS=1;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS=1;_HAS_AUTO_PTR_ETC=1;_SCL_SECURE_NO_WARNINGS=1;CHECK_CORRECTNESS;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>..\..\include\;..\..\src\;..\..\lexlib\</AdditionalIncludeDirectories>
       <LanguageStandard>stdcpp17</LanguageStandard>
     </ClCompile>
@@ -138,7 +138,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS=1;_HAS_AUTO_PTR_ETC=1;_SCL_SECURE_NO_WARNINGS=1;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS=1;_HAS_AUTO_PTR_ETC=1;_SCL_SECURE_NO_WARNINGS=1;CHECK_CORRECTNESS;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>..\..\include\;..\..\src\;..\..\lexlib\</AdditionalIncludeDirectories>
       <LanguageStandard>stdcpp17</LanguageStandard>
     </ClCompile>
diff --git a/test/unit/testSparseVector.cxx b/test/unit/testSparseVector.cxx
index 5bc710744..7f2a9e9af 100644
--- a/test/unit/testSparseVector.cxx
+++ b/test/unit/testSparseVector.cxx
@@ -165,6 +165,22 @@ TEST_CASE("SparseVector") {
 		st.Check();
 	}
 
+	SECTION("CheckDeletionLeavesOrdered") {
+		REQUIRE(1 == st.Elements());
+		st.InsertSpace(0, 1);
+		st.SetValueAt(0, UniqueStringCopy("1"));
+		REQUIRE("1" == Representation(st));
+		REQUIRE(1 == st.Elements());
+		st.InsertSpace(1, 1);
+		st.SetValueAt(1, UniqueStringCopy("2"));
+		REQUIRE("12" == Representation(st));
+		st.DeletePosition(0);
+		REQUIRE("2" == Representation(st));
+		REQUIRE(1 == st.Elements());
+		st.DeletePosition(0);
+		REQUIRE("" == Representation(st));
+	}
+
 	SECTION("DeleteAll") {
 		REQUIRE(1 == st.Elements());
 		st.InsertSpace(0, 10);