diff --git a/tests/cases/fourslash/fourslash.ts b/tests/cases/fourslash/fourslash.ts
index df4e3b3173..e1b1e26c3c 100644
--- a/tests/cases/fourslash/fourslash.ts
+++ b/tests/cases/fourslash/fourslash.ts
@@ -386,6 +386,10 @@ module FourSlashInterface {
         public syntacticClassificationsAre(...classifications: { classificationType: string; text: string }[]) {
             FourSlash.currentTestState.verifySyntacticClassifications(classifications);
         }
+
+        public semanticClassificationsAre(...classifications: { classificationType: string; text: string }[]) {
+            FourSlash.currentTestState.verifySemanticClassifications(classifications);
+        }
     }
 
     export class edit {
diff --git a/tests/cases/fourslash/semanticClassification1.ts b/tests/cases/fourslash/semanticClassification1.ts
new file mode 100644
index 0000000000..0a0cc68250
--- /dev/null
+++ b/tests/cases/fourslash/semanticClassification1.ts
@@ -0,0 +1,12 @@
+/// <reference path="fourslash.ts"/>
+
+//// module M {
+////     export interface I {
+////     }
+//// }
+//// interface X extends M.I { }
+
+debugger;
+var c = classification;
+verify.semanticClassificationsAre(
+    c.moduleName("M"), c.interfaceName("I"), c.interfaceName("X"), c.moduleName("M"), c.interfaceName("I"));
diff --git a/tests/cases/fourslash/syntacticClassifications1.ts b/tests/cases/fourslash/syntacticClassifications1.ts
new file mode 100644
index 0000000000..e70a4b672f
--- /dev/null
+++ b/tests/cases/fourslash/syntacticClassifications1.ts
@@ -0,0 +1,36 @@
+/// <reference path="fourslash.ts"/>
+
+//// // comment
+//// module M {
+////     var v = 0 + 1;
+////     var s = "string";
+////
+////     class C<T> {
+////     }
+////
+////     enum E {
+////     }
+////
+////     interface I {
+////     }
+////
+////     module M1.M2 {
+////     }
+//// }
+
+debugger;
+var c = classification;
+verify.syntacticClassificationsAre(
+    c.comment("// comment"),
+    c.keyword("module"), c.moduleName("M"), c.punctuation("{"),
+        c.keyword("var"), c.text("v"), c.operator("="), c.numericLiteral("0"), c.operator("+"), c.numericLiteral("1"), c.punctuation(";"),
+        c.keyword("var"), c.text("s"), c.operator("="), c.stringLiteral('"string"'), c.punctuation(";"),
+        c.keyword("class"), c.className("C"), c.punctuation("<"), c.typeParameterName("T"), c.punctuation(">"), c.punctuation("{"),
+        c.punctuation("}"),
+        c.keyword("enum"), c.enumName("E"), c.punctuation("{"),
+        c.punctuation("}"),
+        c.keyword("interface"), c.interfaceName("I"), c.punctuation("{"),
+        c.punctuation("}"),
+        c.keyword("module"), c.moduleName("M1"), c.punctuation("."), c.moduleName("M2"), c.punctuation("{"),
+        c.punctuation("}"),
+    c.punctuation("}"));
\ No newline at end of file