Tests that confidential options are not printed in toString() (#9154)

Signed-off-by: Tomas Langer <[email protected]>

builder/tests/builder/src/main/java/io/helidon/builder/test/testsubjects/tostring/SecretBlueprint.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2024 Oracle and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.helidon.builder.test.testsubjects.tostring;
+
+import io.helidon.builder.api.Option;
+import io.helidon.builder.api.Prototype;
+
+@Prototype.Blueprint
+interface SecretBlueprint {
+    String name();
+    @Option.Confidential
+    String secret();
+}

builder/tests/builder/src/test/java/io/helidon/builder/test/ToStringTest.java

@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2024 Oracle and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.helidon.builder.test;
+
+import io.helidon.builder.test.testsubjects.tostring.Secret;
+
+import org.junit.jupiter.api.Test;
+
+import static org.hamcrest.CoreMatchers.containsString;
+import static org.hamcrest.CoreMatchers.not;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+class ToStringTest {
+    @Test
+    void testToStringWithConfidential() {
+        var builder = Secret.builder()
+                .name("public-name")
+                .secret("secret-value");
+        var secret = builder.build();
+
+        assertThat(builder.toString(), containsString("public-name"));
+        assertThat(builder.toString(), not(containsString("secret-value")));
+
+        assertThat(secret.toString(), containsString("public-name"));
+        assertThat(secret.toString(), not(containsString("secret-value")));
+    }
+}