diff --git a/tests/cases/fourslash/codeFixAddMissingProperties17.ts b/tests/cases/fourslash/codeFixAddMissingProperties17.ts
new file mode 100644
index 0000000000000..3f1cb6ade3af7
--- /dev/null
+++ b/tests/cases/fourslash/codeFixAddMissingProperties17.ts
@@ -0,0 +1,16 @@
+/// <reference path='fourslash.ts' />
+
+////interface Foo<T> {
+////    foo(): T;
+////}
+////[|const x: Foo<string> = {};|]
+
+verify.codeFix({
+  index: 0,
+  description: ts.Diagnostics.Add_missing_properties.message,
+  newRangeContent: `const x: Foo<string> = {
+    foo: function(): string {
+        throw new Error("Function not implemented.");
+    }
+};`,
+});
diff --git a/tests/cases/fourslash/codeFixAddMissingProperties18.ts b/tests/cases/fourslash/codeFixAddMissingProperties18.ts
new file mode 100644
index 0000000000000..53629b59c7b79
--- /dev/null
+++ b/tests/cases/fourslash/codeFixAddMissingProperties18.ts
@@ -0,0 +1,20 @@
+/// <reference path='fourslash.ts' />
+
+////interface Bar {
+////    a: number;
+////}
+////
+////interface Foo<T, U> {
+////    foo(a: T): U;
+////}
+////[|const x: Foo<string, Bar> = {};|]
+
+verify.codeFix({
+  index: 0,
+  description: ts.Diagnostics.Add_missing_properties.message,
+  newRangeContent: `const x: Foo<string, Bar> = {
+    foo: function(a: string): Bar {
+        throw new Error("Function not implemented.");
+    }
+};`,
+});