added missing Append extensions

Raliway.Tests/Results/GeneralUsage.cs

@@ -2,80 +2,6 @@ namespace Raliway.Tests.Results;
 
 public class GeneralUsage
 {
-    [Fact]
-    public void TwoResultCombination_WhenThereIsAnError()
-    {
-        // Given
-        var result1 = Result.Success(1);
-        var result2 = Result.Failure(Error.New("some error"));
-        // When
-        var result = Result.Combine(result1, result2);
-        // Then
-        Assert.True(result.IsFailure);
-        Assert.Equal(result2.Error, result.Error);
-    }
-    [Fact]
-    public void TwoResultCombination_WhenThereAreTwoErrors()
-    {
-        // Given
-        var result1 = Result.Failure<byte>(Error.New("1"));
-        var result2 = Result.Failure(Error.New("2"));
-        // When
-        var result = Result.Combine(result1, result2);
-        // Then
-        Assert.True(result.IsFailure);
-        Assert.Equal(result1.Error + result2.Error, result.Error);
-    }
-    [Fact]
-    public void TwoResultCombination_WhenThereIsNoError()
-    {
-        // Given
-        var result1 = Result.Success(1);
-        var result2 = Result.Success(3.14);
-        // When
-        var result = Result.Combine(result1, result2);
-        // Then
-        Assert.True(result.IsSuccess);
-    }
-    [Fact]
-    public void ThreeResultCombination_WhenThereIsAnError()
-    {
-        // Given
-        var result1 = Result.Success(1);
-        var result2 = Result.Success(3.14);
-        var result3 = Result.Failure(Error.New("some error"));
-        // When
-        Result<(int, double)> result = Result.Combine(result1, result2, result3);
-        // Then
-        Assert.True(result.IsFailure);
-        Assert.Equal(result3.Error, result.Error);
-    }
-    [Fact]
-    public void ThreeResultCombination_WhenThereAreTwoErrors()
-    {
-        // Given
-        var result1 = Result.Failure<int?>(Error.New("1"));
-        var result2 = Result.Success(3.14);
-        var result3 = Result.Failure(Error.New("3"));
-        // When
-        Result<(int?, double)> result = Result.Combine(result1, result2, result3);
-        // Then
-        Assert.True(result.IsFailure);
-        Assert.Equal(result1.Error + result3.Error, result.Error);
-    }
-    [Fact]
-    public void ThreeResultCombination_WhenThereIsNoError()
-    {
-        // Given
-        var result1 = Result.Success(1);
-        var result2 = Result.Success(3.14);
-        var result3 = Result.Success();
-        // When
-        var result = Result.Combine(result1, result2, result3);
-        // Then
-        Assert.True(result.IsSuccess);
-    }
-
     [Fact]
     public void ChainedResultExtensions_WhenThereIsNoError()
     {
@@ -104,10 +30,9 @@ public class GeneralUsage
     public void ChainedResultExtensions_WhenThereIsAnError()
     {
         // Given
+        var error = Error.New("test");
         
         // When
-        var error = Error.New("test");
-
 
         var result = Result.Success()
             .Append(() => Result.Failure<int>(error))
@@ -115,7 +40,7 @@ public class GeneralUsage
             .Map((i, s) =>
             {
                 Assert.Fail();
-                return Result.Success("");
+                return "";
             })
             .Append("some")
             .Bind((s1, s2) => 
@@ -139,4 +64,68 @@ public class GeneralUsage
         // Then
         Assert.Equal("satisfied", result);
     }
+
+    [Fact]
+    public async Task ChainedResultAsyncExtensions_WhenThereIsNoError()
+    {
+        // Given
+
+        // When
+        var result = await Result.Success()
+            .Append(() => ValueTask.FromResult(Result.Success(1)))
+            .Append("test")
+            .Map((i, s) => $"{s}_{i}")
+            .Append("some")
+            .Bind(async (s1, s2) => await ValueTask.FromResult(Result.Success(string.Join(';', s1, s2))))
+            .Match(
+                onSuccess: s => s.ToUpper(),
+                onFailure: _ =>
+                {
+                    Assert.Fail();
+                    return "";
+                }
+            );
+        
+        Assert.Equal("TEST_1;SOME", result);
+    }
+
+    [Fact]
+    public async Task ChainedResultAsyncExtensions_WhenThereIsAnError()
+    {
+        // Given
+        var error = Error.New("test");
+        
+        // When
+
+        var result = await Result.Success()
+            .Append(() => Task.FromResult(Result.Failure<int>(error)))
+            .Append("test")
+            .Map((i, s) =>
+            {
+                Assert.Fail();
+                return "";
+            })
+            .Append("some")
+            .Bind(async (s1, s2) => 
+            {
+                Assert.Fail();
+                await Task.CompletedTask;
+                return Result.Success("");
+            })
+            .Match(
+                onSuccess: _ => 
+                {
+                    Assert.Fail();
+                    return "";
+                },
+                onFailure: err =>
+                {
+                    Assert.Equal(error, err);
+                    return "satisfied";
+                }
+            );
+
+        // Then
+        Assert.Equal("satisfied", result);
+    }
 }