Add predicates for Serialization hints

Closes gh-28772

spring-core/src/test/java/org/springframework/aot/hint/SerializationHintsPredicatesTests.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2002-2022 the original author or authors.
+ *
+ * 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
+ *
+ *      https://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 org.springframework.aot.hint;
+
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link SerializationHintsPredicates}.
+ *
+ * @author Stephane Nicoll
+ */
+class SerializationHintsPredicatesTests {
+
+	private final SerializationHintsPredicates serialization = new SerializationHintsPredicates();
+
+	private final RuntimeHints runtimeHints = new RuntimeHints();
+
+	@Test
+	void shouldMatchRegisteredClass() {
+		runtimeHints.serialization().registerType(String.class);
+		assertThat(serialization.onType(String.class).test(runtimeHints)).isTrue();
+	}
+
+	@Test
+	void shouldMatchRegisteredTypeReference() {
+		runtimeHints.serialization().registerType(TypeReference.of(String.class));
+		assertThat(serialization.onType(String.class).test(runtimeHints)).isTrue();
+	}
+
+	@Test
+	void shouldNotMatchUnregisteredType() {
+		runtimeHints.serialization().registerType(Integer.class);
+		assertThat(serialization.onType(Long.class).test(runtimeHints)).isFalse();
+	}
+
+}