Add inline configuration support to QuarkusUnitTest and remove obsolete test config files (#51206)

extensions/hibernate-reactive/deployment/src/test/java/io/quarkus/hibernate/reactive/compatibility/ORMReactiveCompatbilityDefaultOnlyReactiveDisabledBlockingSessionUnitTest.java

@@ -23,7 +23,6 @@ public class ORMReactiveCompatbilityDefaultOnlyReactiveDisabledBlockingSessionUn
                     .addAsResource("complexMultilineImports.sql", "import.sql"))
             .setForcedDependencies(List.of(
                     Dependency.of("io.quarkus", "quarkus-jdbc-postgresql-deployment", Version.getVersion())))
-            .withConfigurationResource("application-unittest-onlyreactive.properties")
             .overrideConfigKey("quarkus.hibernate-orm.schema-management.strategy", SCHEMA_MANAGEMENT_STRATEGY)
             .overrideConfigKey("quarkus.hibernate-orm.blocking", "false")
             .overrideConfigKey("quarkus.datasource.reactive", "true")

extensions/hibernate-reactive/deployment/src/test/java/io/quarkus/hibernate/reactive/compatibility/ORMReactiveCompatbilityDefaultOnlyReactiveUnitTest.java

@@ -16,7 +16,6 @@ public class ORMReactiveCompatbilityDefaultOnlyReactiveUnitTest extends Compatib
             .withApplicationRoot((jar) -> jar
                     .addClasses(Hero.class)
                     .addAsResource("complexMultilineImports.sql", "import.sql"))
-            .withConfigurationResource("application-unittest-onlyreactive.properties")
             .overrideConfigKey("quarkus.hibernate-orm.schema-management.strategy", SCHEMA_MANAGEMENT_STRATEGY)
             .overrideConfigKey("quarkus.datasource.reactive", "true")
             .overrideConfigKey("quarkus.datasource.db-kind", POSTGRES_KIND)

extensions/hibernate-reactive/deployment/src/test/java/io/quarkus/hibernate/reactive/compatibility/ORMReactiveCompatbilityNamedDataSourceReactiveUnitTest.java

@@ -21,7 +21,6 @@ public class ORMReactiveCompatbilityNamedDataSourceReactiveUnitTest extends Comp
             .withApplicationRoot((jar) -> jar
                     .addClasses(Hero.class)
                     .addAsResource("complexMultilineImports.sql", "import.sql"))
-            .withConfigurationResource("application-unittest-onlyreactive-named.properties")
             .overrideConfigKey("quarkus.hibernate-orm.schema-management.strategy", SCHEMA_MANAGEMENT_STRATEGY)
             .overrideConfigKey("quarkus.hibernate-orm.datasource", "named-datasource")
             .overrideConfigKey("quarkus.datasource.\"named-datasource\".reactive", "true")

extensions/hibernate-reactive/deployment/src/test/java/io/quarkus/hibernate/reactive/compatibility/ORMReactiveCompatbilityOnlyReactiveJDBCDisabledUnitTest.java

@@ -23,7 +23,6 @@ public class ORMReactiveCompatbilityOnlyReactiveJDBCDisabledUnitTest extends Com
                     .addAsResource("complexMultilineImports.sql", "import.sql"))
             .setForcedDependencies(List.of(
                     Dependency.of("io.quarkus", "quarkus-jdbc-postgresql-deployment", Version.getVersion())))
-            .withConfigurationResource("application-unittest-onlyreactive.properties")
             .overrideConfigKey("quarkus.hibernate-orm.schema-management.strategy", SCHEMA_MANAGEMENT_STRATEGY)
             .overrideConfigKey("quarkus.datasource.jdbc", "false")
             .overrideConfigKey("quarkus.datasource.reactive", "true")

test-framework/junit5-internal/src/main/java/io/quarkus/test/QuarkusUnitTest.java

@@ -906,6 +906,40 @@ public QuarkusUnitTest withConfigurationResource(String resourceName) {
         return this;
     }
 
+    /**
+     * Adds configuration properties using a text block with "key=value" lines.
+     * Blank lines and lines starting with '#' are ignored.
+     *
+     * Example:
+     * .withConfiguration("""
+     * quarkus.datasource.db-kind=postgresql
+     * quarkus.datasource.username=user
+     * quarkus.datasource.password=pass
+     * """)
+     *
+     * @param configBlock text block with configuration lines
+     * @return self
+     */
+    public QuarkusUnitTest withConfiguration(String configBlock) {
+        Objects.requireNonNull(configBlock, "Configuration text block must not be null");
+
+        configBlock.lines()
+                .map(String::trim)
+                .filter(line -> !line.isEmpty() && !line.startsWith("#"))
+                .forEach(line -> {
+                    int idx = line.indexOf('=');
+                    if (idx <= 0) {
+                        throw new IllegalArgumentException(
+                                "Invalid configuration line: '" + line + "'. Expected format 'key=value'");
+                    }
+                    String key = line.substring(0, idx).trim();
+                    String value = line.substring(idx + 1).trim();
+                    overrideConfigKey(key, value);
+                });
+
+        return this;
+    }
+
     /**
      * Overriden configuration properties take precedence over an {@code application.properties} asset added in the test
      * {@link JavaArchive}.

test-framework/junit5-internal/src/test/java/io/quarkus/test/QuarkusUnitTestWithConfigurationTest.java

@@ -0,0 +1,28 @@
+package io.quarkus.test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import org.eclipse.microprofile.config.Config;
+import org.eclipse.microprofile.config.ConfigProvider;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.RegisterExtension;
+
+public class QuarkusUnitTestWithConfigurationTest {
+
+    @RegisterExtension
+    static final QuarkusUnitTest config = new QuarkusUnitTest()
+            .withConfiguration("""
+                        quarkus.datasource.db-kind=postgresql
+                        quarkus.datasource.username=quarkus
+                        quarkus.datasource.password=quarkus
+                    """);
+
+    @Test
+    public void testInlineConfigurationApplied() {
+        Config cfg = ConfigProvider.getConfig();
+
+        assertEquals("postgresql", cfg.getValue("quarkus.datasource.db-kind", String.class));
+        assertEquals("quarkus", cfg.getValue("quarkus.datasource.username", String.class));
+        assertEquals("quarkus", cfg.getValue("quarkus.datasource.password", String.class));
+    }
+}