diff --git a/src/harness/fourslash.ts b/src/harness/fourslash.ts
index e746bd9e7c9..b5a3897196b 100644
--- a/src/harness/fourslash.ts
+++ b/src/harness/fourslash.ts
@@ -413,10 +413,14 @@ module FourSlash {
         }
 
         private raiseError(message: string) {
-            message = "Marker: " + currentTestState.lastKnownMarker + "\n" + message;
+            message = this.assertionMessage(message);
             throw new Error(message);
         }
 
+        private assertionMessage(message: string) {
+            return "Marker: " + currentTestState.lastKnownMarker + "\n" + message;
+        }
+
         private getDiagnostics(fileName: string): ts.Diagnostic[] {
             var syntacticErrors = this.languageService.getSyntacticDiagnostics(fileName);
             var semanticErrors = this.languageService.getSemanticDiagnostics(fileName);
@@ -772,35 +776,31 @@ module FourSlash {
             var actualQuickInfoSymbolName = actualQuickInfo ? actualQuickInfo.fullSymbolName : "";
             var actualQuickInfoKind = actualQuickInfo ? actualQuickInfo.kind : "";
 
-            function assertionMessage(name: string, actualValue: string, expectedValue: string) {
-                return "\nActual " + name + ":\n\t" + actualValue + "\nExpected value:\n\t" + expectedValue;
-            }
-
             if (negative) {
                 if (expectedTypeName !== undefined) {
-                    assert.notEqual(actualQuickInfoMemberName, expectedTypeName, assertionMessage("quick info member name", actualQuickInfoMemberName, expectedTypeName));
+                    assert.notEqual(actualQuickInfoMemberName, expectedTypeName, this.assertionMessage("quick info member name"));
                 }
                 if (docComment != undefined) {
-                    assert.notEqual(actualQuickInfoDocComment, docComment, assertionMessage("quick info doc comment", actualQuickInfoDocComment, docComment));
+                    assert.notEqual(actualQuickInfoDocComment, docComment, this.assertionMessage("quick info doc comment"));
                 }
                 if (symbolName !== undefined) {
-                    assert.notEqual(actualQuickInfoSymbolName, symbolName, assertionMessage("quick info symbol name", actualQuickInfoSymbolName, symbolName));
+                    assert.notEqual(actualQuickInfoSymbolName, symbolName, this.assertionMessage("quick info symbol name"));
                 }
                 if (kind !== undefined) {
-                    assert.notEqual(actualQuickInfoKind, kind, assertionMessage("quick info kind", actualQuickInfoKind, kind));
+                    assert.notEqual(actualQuickInfoKind, kind, this.assertionMessage("quick info kind"));
                 }
             } else {
                 if (expectedTypeName !== undefined) {
-                    assert.equal(actualQuickInfoMemberName, expectedTypeName, assertionMessage("quick info member", actualQuickInfoMemberName, expectedTypeName));
+                    assert.equal(actualQuickInfoMemberName, expectedTypeName, this.assertionMessage("quick info member"));
                 }
                 if (docComment != undefined) {
-                    assert.equal(actualQuickInfoDocComment, docComment, assertionMessage("quick info doc", actualQuickInfoDocComment, docComment));
+                    assert.equal(actualQuickInfoDocComment, docComment, this.assertionMessage("quick info doc"));
                 }
                 if (symbolName !== undefined) {
-                    assert.equal(actualQuickInfoSymbolName, symbolName, assertionMessage("quick info symbol name", actualQuickInfoSymbolName, symbolName));
+                    assert.equal(actualQuickInfoSymbolName, symbolName, this.assertionMessage("quick info symbol name"));
                 }
                 if (kind !== undefined) {
-                    assert.equal(actualQuickInfoKind, kind, assertionMessage("quick info kind", actualQuickInfoKind, kind));
+                    assert.equal(actualQuickInfoKind, kind, this.assertionMessage("quick info kind"));
                 }
             }
         }
@@ -1448,6 +1448,21 @@ module FourSlash {
             }
         }
 
+        public verifyDefinitionsName(negative: boolean, expectedName: string, expectedContainerName: string) {
+            this.taoInvalidReason = 'verifyDefinititionsInfo NYI';
+
+            var definitions = this.languageService.getDefinitionAtPosition(this.activeFile.fileName, this.currentCaretPosition);
+            var actualDefinitionName = definitions && definitions.length ? definitions[0].name : "";
+            var actualDefinitionContainerName = definitions && definitions.length ? definitions[0].containerName : "";
+            if (negative) {
+                assert.notEqual(actualDefinitionName, expectedName, this.assertionMessage("Definition Info Name"));
+                assert.notEqual(actualDefinitionName, expectedName, this.assertionMessage("Definition Info Container Name"));
+            } else {
+                assert.equal(actualDefinitionName, expectedName, this.assertionMessage("Definition Info Name"));
+                assert.equal(actualDefinitionName, expectedName, this.assertionMessage("Definition Info Container Name"));
+            }
+        }
+
         public getMarkers(): Marker[] {
             //  Return a copy of the list
             return this.testData.markers.slice(0);
diff --git a/tests/cases/fourslash/definitionNameOnEnumMember.ts b/tests/cases/fourslash/definitionNameOnEnumMember.ts
new file mode 100644
index 00000000000..b22b9d16c07
--- /dev/null
+++ b/tests/cases/fourslash/definitionNameOnEnumMember.ts
@@ -0,0 +1,12 @@
+/// <reference path="fourslash.ts"/>
+
+////enum e {
+////    firstMember,
+////    secondMember,
+////    thirdMember
+////}
+////var enumMember = e./*1*/thirdMember;
+
+goTo.marker("1");
+// This is bug #652
+verify.verifyDefinitionsName("e.thirdMember", "e");
\ No newline at end of file
diff --git a/tests/cases/fourslash/fourslash.ts b/tests/cases/fourslash/fourslash.ts
index c204a98c4a4..9b5958792bc 100644
--- a/tests/cases/fourslash/fourslash.ts
+++ b/tests/cases/fourslash/fourslash.ts
@@ -237,6 +237,10 @@ module FourSlashInterface {
         public definitionLocationExists() {
             FourSlash.currentTestState.verifyDefinitionLocationExists(this.negative);
         }
+
+        public verifyDefinitionsName(name: string, containerName: string) {
+            FourSlash.currentTestState.verifyDefinitionsName(this.negative, name, containerName);
+        }
     }
 
     export class verify extends verifyNegatable {