[#1614] Add test for Parameters processors

Author: DavideD

hibernate-reactive-core/src/test/java/org/hibernate/reactive/ParametersProcessorTest.java

@@ -0,0 +1,67 @@
+/* Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * Copyright: Red Hat Inc. and Hibernate Authors
+ */
+package org.hibernate.reactive;
+
+import java.util.stream.Stream;
+
+import org.hibernate.reactive.pool.impl.OracleParameters;
+import org.hibernate.reactive.pool.impl.PostgresParameters;
+import org.hibernate.reactive.pool.impl.SQLServerParameters;
+
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.params.provider.Arguments.arguments;
+
+/**
+ * Test the {@link org.hibernate.reactive.pool.impl.Parameters} processor for each database
+ */
+public class ParametersProcessorTest {
+
+	/**
+	 * Each test will replace this placeholder with the correct parameter prefix for the selected database
+	 */
+	private static final String PARAM_PREFIX = "__paramPrefix__";
+
+
+	/**
+	 * Return the strings to process and the expected result for each one
+	 */
+	static Stream<Arguments> expectations() {
+		return Stream.of(
+				arguments( "/* One comment */ \\?", "/* One comment */ ?" ),
+				arguments( "/* One comment */ ?", "/* One comment */ " + PARAM_PREFIX + "1" ),
+				arguments( "'Sql text ?'", "'Sql text ?'" ),
+				arguments( "\\?", "?" ),
+				arguments( "???", PARAM_PREFIX + "1" + PARAM_PREFIX + "2" + PARAM_PREFIX + "3" ),
+				arguments( "\\?|?", "?|" + PARAM_PREFIX + "1" ),
+				arguments( " ? ", " " + PARAM_PREFIX + "1 " )
+		);
+	}
+
+	@ParameterizedTest
+	@MethodSource("expectations")
+	public void testPostgreSQLProcessing(String unprocessed, String expected) {
+		assertThat( PostgresParameters.INSTANCE.process( unprocessed ) )
+				.isEqualTo( expected.replaceAll( PARAM_PREFIX, "\\$" ) );
+	}
+
+	@ParameterizedTest
+	@MethodSource("expectations")
+	public void testSqlServerProcessing(String unprocessed, String expected) {
+		assertThat( SQLServerParameters.INSTANCE.process( unprocessed ) )
+				.isEqualTo( expected.replaceAll( PARAM_PREFIX, "@P" ) );
+	}
+
+	@ParameterizedTest
+	@MethodSource("expectations")
+	public void testOracleProcessing(String unprocessed, String expected) {
+		assertThat( OracleParameters.INSTANCE.process( unprocessed ) )
+				.isEqualTo( expected.replaceAll( PARAM_PREFIX, ":" ) );
+	}
+}