Adding ViTestComplete to reproduce a reported failure.

Author: srdubya

UnitTestPSReadLine/BasicEditingTest.VI.cs

@@ -514,7 +514,7 @@ public void ViTestPercent()
                 _.Percent, CheckThat(() => AssertCursorLeftIs(9)),
                 'd', _.Percent, CheckThat(() => AssertLineIs("012  bc")),
                 "uh", CheckThat(() => AssertLineIs("012 [ 67 ] bc")), CheckThat(() => AssertCursorLeftIs(9)),
-                'c', _.Percent, "99", _.Escape, CheckThat(() => AssertLineIs( "012 99 bc")),
+                'c', _.Percent, "99", _.Escape, CheckThat(() => AssertLineIs("012 99 bc")),
                 'u'
                 ));
 
@@ -796,5 +796,19 @@ public void ViTestChangeChar()
                 'u'
                 ));
         }
+
+        [TestMethod]
+        public void ViTestComplete()
+        {
+            TestSetup(KeyMode.Vi);
+
+            PSConsoleReadLine.SetKeyHandler(new[] { "Tab" }, PSConsoleReadLine.Complete, "", "");
+
+            Test("ambiguousness", Keys(
+                "ambag", CheckThat(() => AssertLineIs("ambag")),
+                _.Escape, "hCig", _.Tab, CheckThat(() => AssertLineIs("ambiguous1")),
+                _.Escape, "Cness"
+                ));
+        }
     }
 }