initial unit test

Author: daveMueller

test/coverlet.core.tests/Coverage/CoverageTests.AwaitUsing.cs

@@ -49,5 +49,29 @@ public void AwaitUsing()
         File.Delete(path);
       }
     }
+
+    [Fact]
+    public void AwaitUsingGeneric()
+    {
+      string path = Path.GetTempFileName();
+      try
+      {
+        FunctionExecutor.RunInProcess(async (string[] pathSerialize) =>
+        {
+          CoveragePrepareResult coveragePrepareResult = await TestInstrumentationHelper.Run<AwaitUsing>(async instance =>
+          {
+            await (Task)instance.Issue1490_Repro<string>();
+
+          }, persistPrepareResultToFile: pathSerialize[0]);
+          return 0;
+        }, new string[] { path });
+
+        TestInstrumentationHelper.GetCoverageResult(path).GenerateReport(show: true);
+      }
+      finally
+      {
+        File.Delete(path);
+      }
+    }
   }
 }

test/coverlet.core.tests/Coverage/InstrumenterHelper.Assertions.cs

@@ -30,7 +30,7 @@ public static CoverageResult GenerateReport(this CoverageResult coverageResult,
       {
         Process.Start("cmd", "/C " + Path.GetFullPath(Path.Combine(directory, "index.htm")));
       }
-
+      Process.Start("cmd", "/C " + Path.GetFullPath(Path.Combine(directory, "index.htm")));
       return coverageResult;
     }
 

test/coverlet.core.tests/Samples/Instrumentation.AwaitUsing.cs

@@ -36,6 +36,12 @@ async private Task Issue914_Repro_Example2()
             await transaction.DisposeAsync();
         }
 
+        async public Task<T> Issue1490_Repro<T>()
+        {
+            await using var transaction = new MyTransaction();
+            return default(T);
+        }
+
 
         private class MyTransaction : IAsyncDisposable
         {