8003639: convert lambda testng tests to jtreg and add them

Reviewed-by: mcimadamore

langtools/test/tools/javac/lambda/lambdaExecution/InInterface.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * @test
+ * @bug 8003639
+ * @summary convert lambda testng tests to jtreg and add them
+ * @run testng InInterface
+ */
+
+import static org.testng.Assert.assertEquals;
+import org.testng.annotations.Test;
+
+interface LTII {
+
+    interface ILsp1 {
+        String m();
+    }
+
+    interface ILsp2 {
+        String m(String x);
+    }
+
+    default ILsp1 t1() {
+        return () -> { return "yo"; };
+    }
+
+    default ILsp2 t2() {
+        return (x) -> { return "snur" + x; };
+    }
+
+}
+
+@Test
+public class InInterface implements LTII {
+
+    public void testLambdaInDefaultMethod() {
+        assertEquals(t1().m(), "yo");
+        assertEquals(t2().m("p"), "snurp");
+    }
+
+}