1 files changed, 21 insertions, 0 deletions
diff --git a/tests/auto/blackbox/testdata/typescript/animals.ts b/tests/auto/blackbox/testdata/typescript/animals.ts
new file mode 100644
index 000000000..a33ae5c11
--- /dev/null
+++ b/tests/auto/blackbox/testdata/typescript/animals.ts
@@ -0,0 +1,21 @@
+export interface Mammal {
+    speak(): string;
+}
+
+export class Cat implements Mammal {
+    public speak() {
+        return "Meow"; // a cat says meow
+    }
+}
+
+export class Dog implements Mammal {
+    public speak() {
+        return "Woof"; // a dog says woof
+    }
+}
+
+export class Human implements Mammal {
+    public speak() {
+        return "Hello";
+    }
+}