test/tools/jlink/bindservices/SuggestProviders.java

@@ -169,10 +169,46 @@
         String expected = "--bind-services option is specified. No additional providers suggested.";
         assertTrue(output.contains(expected));
 
     }
 
+    @Test
+    public void suggestNotProvider() throws Throwable {
+        if (!hasJmods()) return;
+
+        List<String> output =
+                JLink.run("--module-path", MODULE_PATH,
+                        "--add-modules", "m1",
+                        "--suggest-providers",
+                        "java.util.List").output();
+
+        System.out.println(output);
+        List<String> expected = List.of(
+                "Services specified in --suggest-providers not used: java.util.List"
+        );
+
+        assertTrue(output.containsAll(expected));
+    }
+
+    @Test
+    public void noOneUsesProvider() throws Throwable {
+        if (!hasJmods()) return;
+
+        List<String> output =
+                JLink.run("--module-path", MODULE_PATH,
+                        "--add-modules", "m4",
+                        "--suggest-providers",
+                        "p4.Impl").output();
+
+        System.out.println(output);
+        List<String> expected = List.of(
+                "Services specified in --suggest-providers not used: p4.Impl"
+        );
+
+        assertTrue(output.containsAll(expected));
+    }
+    
     static class JLink {
         static final ToolProvider JLINK_TOOL = ToolProvider.findFirst("jlink")
             .orElseThrow(() ->
                 new RuntimeException("jlink tool not found")
             );