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Add a nested generics test for GenericTypeResolver

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Closes gh-31690
This commit is contained in:
Sébastien Deleuze
2023-11-29 14:49:25 +01:00
parent 7cf124b696
commit df00aafdff
1 changed files with 15 additions and 1 deletions
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16
spring-core/src/test/java/org/springframework/core/GenericTypeResolverTests.java
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@@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2022 the original author or authors. * Copyright 2002-2023 the original author or authors.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@@ -194,6 +194,15 @@ class GenericTypeResolverTests {
assertThat(resolved).isEqualTo(E.class); assertThat(resolved).isEqualTo(E.class);
} }
@Test
public void resolveMethodParameterWithNestedGenerics() {
Method method = method(WithMethodParameter.class, "nestedGenerics", List.class);
MethodParameter methodParameter = new MethodParameter(method, 0);
Type resolvedType = resolveType(methodParameter.getGenericParameterType(), WithMethodParameter.class);
ParameterizedTypeReference<List<Map<String, Integer>>> reference = new ParameterizedTypeReference<>() {};
assertThat(resolvedType).isEqualTo(reference.getType());
}
private static Method method(Class<?> target, String methodName, Class<?>... parameterTypes) { private static Method method(Class<?> target, String methodName, Class<?>... parameterTypes) {
Method method = findMethod(target, methodName, parameterTypes); Method method = findMethod(target, methodName, parameterTypes);
assertThat(method).describedAs(target.getName() + "#" + methodName).isNotNull(); assertThat(method).describedAs(target.getName() + "#" + methodName).isNotNull();
@@ -388,5 +397,10 @@ class GenericTypeResolverTests {
static class SecondFirstService implements Second<String>, First<Integer> { static class SecondFirstService implements Second<String>, First<Integer> {
} }
static class WithMethodParameter {
public void nestedGenerics(List<Map<String, Integer>> input) {
}
}
} }