Check that IDISP008 warns.

#185

Author: JohanLarsson

IDisposableAnalyzers.Test/IDISP008DoNontMixInjectedAndCreatedForMemberTests/Diagnostics.Field.cs

@@ -202,6 +202,59 @@ public C(IDisposable disposable)
 }";
                 RoslynAssert.Diagnostics(Analyzer, ExpectedDiagnostic, Disposable, code);
             }
+
+            [Test]
+            public static void Issue185()
+            {
+                var c1 = @"
+namespace N
+{
+    using System;
+
+    public class C1 : IDisposable
+    {
+        public void Dispose()
+        {
+        }
+    }
+}";
+                var code = @"
+namespace N
+{
+    using System;
+
+    public class C
+    {
+        ↓private C1 _c1;
+
+        public C() { }
+
+        public C(C1 c1)
+        {
+            _c1 = c1;
+        }
+
+        public C1 M1() => _c1;
+
+        public C1 M2() => _c1 = new C1();
+
+        public C1 GetOrCreateFoo()
+        {
+            var c1 = this.M1();
+            if (c1 != null)
+                return c1;
+
+            c1 = M2();
+            if (c1 != null)
+                return c1;
+
+            throw new Exception();
+        }
+    }
+}";
+
+                RoslynAssert.Diagnostics(Analyzer, ExpectedDiagnostic, c1, code);
+            }
         }
     }
 }