Add JUnit profiles helidon-io#3115 (helidon-io#3391)

* Add configuration profile to JUnit tests. Integration tests included.

* Minor formatting rollbacks.

Author: dalexandrov

microprofile/tests/junit5-tests/src/test/java/io/helidon/microprofile/tests/junit5/TestConfigurationCustomProfile.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2021 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.microprofile.tests.junit5;
+
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.junit.jupiter.api.Test;
+
+import javax.inject.Inject;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+@HelidonTest
+@Configuration(profile = "custom")
+public class TestConfigurationCustomProfile {
+
+    @Inject
+    @ConfigProperty(name = "mp.config.profile")
+    private String profile;
+
+    @Test
+    void testCustomProfile(){
+        assertThat(profile, is("custom"));
+    }
+}

microprofile/tests/junit5-tests/src/test/java/io/helidon/microprofile/tests/junit5/TestConfigurationDefaultProfile.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2021 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.microprofile.tests.junit5;
+
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.junit.jupiter.api.Test;
+
+import javax.inject.Inject;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+@HelidonTest
+@Configuration
+public class TestConfigurationDefaultProfile {
+
+    @Inject
+    @ConfigProperty(name = "mp.config.profile")
+    private String profile;
+
+    @Test
+    void testProfile(){
+        assertThat(profile, is("test"));
+    }
+}

microprofile/tests/junit5/src/main/java/io/helidon/microprofile/tests/junit5/Configuration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020 Oracle and/or its affiliates.
+ * Copyright (c) 2020, 2021 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.
@@ -48,4 +48,11 @@
      * @return config sources to add
      */
     String[] configSources() default {};
+
+    /**
+     * Configuration profile.
+     *
+     * @return String with default value "test".
+     */
+    String profile() default "test";
 }

microprofile/tests/junit5/src/main/java/io/helidon/microprofile/tests/junit5/HelidonJunitExtension.java

@@ -294,7 +294,6 @@ private void configure(ConfigMeta configMeta) {
                     builder.withSources(MpConfigSources.classPath(it).toArray(new ConfigSource[0]));
                 }
             });
-
             config = builder
                     .withSources(MpConfigSources.create(configMeta.additionalKeys))
                     .addDefaultSources()
@@ -508,6 +507,7 @@ private static final class ConfigMeta {
         private final Map<String, String> additionalKeys = new HashMap<>();
         private final List<String> additionalSources = new ArrayList<>();
         private boolean useExisting;
+        private String profile;
 
         private ConfigMeta() {
             // to allow SeContainerInitializer (forbidden by default because of native image)
@@ -517,6 +517,8 @@ private ConfigMeta() {
             additionalKeys.put("server.port", "0");
             // higher ordinal then all the defaults, system props and environment variables
             additionalKeys.putIfAbsent(ConfigSource.CONFIG_ORDINAL, "1000");
+            // profile
+            additionalKeys.put("mp.config.profile", "test");
         }
 
         private void addConfig(AddConfig[] configs) {
@@ -530,7 +532,10 @@ private void configuration(Configuration config) {
                 return;
             }
             useExisting = config.useExisting();
+            profile = config.profile();
             additionalSources.addAll(List.of(config.configSources()));
+            //set additional key for profile
+            additionalKeys.put("mp.config.profile", profile);
         }
 
         ConfigMeta nextMethod() {
@@ -539,6 +544,7 @@ ConfigMeta nextMethod() {
             methodMeta.additionalKeys.putAll(this.additionalKeys);
             methodMeta.additionalSources.addAll(this.additionalSources);
             methodMeta.useExisting = this.useExisting;
+            methodMeta.profile = this.profile;
 
             return methodMeta;
         }