Add tests

OpenAI.sln

@@ -6,6 +6,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "OpenAI", "src\OpenAI.csproj
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "OpenAI.Examples", "examples\OpenAI.Examples.csproj", "{1F1CD1D4-9932-4B73-99D8-C252A67D4B46}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "OpenAI.Tests", "tests\OpenAI.Tests.csproj", "{6F156401-2544-41D7-B204-3148C51C1D09}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -20,11 +22,15 @@ Global
 		{1F1CD1D4-9932-4B73-99D8-C252A67D4B46}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{1F1CD1D4-9932-4B73-99D8-C252A67D4B46}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{1F1CD1D4-9932-4B73-99D8-C252A67D4B46}.Release|Any CPU.Build.0 = Release|Any CPU
+		{6F156401-2544-41D7-B204-3148C51C1D09}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6F156401-2544-41D7-B204-3148C51C1D09}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6F156401-2544-41D7-B204-3148C51C1D09}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6F156401-2544-41D7-B204-3148C51C1D09}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {A97F4B90-2591-4689-B1F8-5F21FE6D6CAE}
 	EndGlobalSection
-EndGlobal
+EndGlobal

examples/Images/Example02_SimpleImageEdit.cs

@@ -14,7 +14,7 @@ public void Example02_SimpleImageEdit()
 
         string imageFilePath = Path.Combine("Assets", "images_flower_vase.png");
         string prompt = "A vase full of beautiful flowers.";
-        string maskFilePath = Path.Combine("Assets", "images_flower_vase_mask.png");
+        string maskFilePath = Path.Combine("Assets", "images_flower_vase_with_mask.png");
 
         ImageEditOptions options = new()
         {

examples/Images/Example02_SimpleImageEditAsync.cs

@@ -15,7 +15,7 @@ public async Task Example02_SimpleImageEditAsync()
 
         string imageFilePath = Path.Combine("Assets", "images_flower_vase.png");
         string prompt = "A vase full of beautiful flowers.";
-        string maskFilePath = Path.Combine("Assets", "images_flower_vase_mask.png");
+        string maskFilePath = Path.Combine("Assets", "images_flower_vase_with_mask.png");
 
         ImageEditOptions options = new()
         {