Merge branch '3.5.x' into 4.0.x

Closes gh-50012

core/spring-boot-test/src/test/java/org/springframework/boot/test/context/SpringBootTestImportTests.java

@@ -0,0 +1,84 @@
+/*
+ * Copyright 2012-present 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.boot.test.context;
+
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTestImportTests.ImportedByContainingTests;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+import org.springframework.core.env.Environment;
+import org.springframework.test.context.TestPropertySource;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link SpringBootTest @SpringBootTest} with {@link Import @Import}.
+ *
+ * @author Andy Wilkinson
+ */
+@TestPropertySource(properties = "a=alpha")
+@Import(ImportedByContainingTests.class)
+class SpringBootTestImportTests {
+
+	@Nested
+	@SpringBootTest(classes = Config.class)
+	@Import(ImportedByNestedTests.class)
+	class NestedTests {
+
+		@Autowired(required = false)
+		private ImportedByContainingTests importedByContainingTests;
+
+		@Autowired(required = false)
+		private ImportedByNestedTests importedByNestedTests;
+
+		@Autowired
+		private Environment environment;
+
+		@Test
+		void sameClassImportIsHonored() {
+			assertThat(this.importedByNestedTests).isNotNull();
+		}
+
+		@Test
+		void containingClassImportIsHonored() {
+			assertThat(this.importedByContainingTests).isNotNull();
+		}
+
+		@Test
+		void containingClassTestPropertySourceIsHonored() {
+			assertThat(this.environment.getProperty("a")).isEqualTo("alpha");
+		}
+
+	}
+
+	@Configuration(proxyBeanMethods = false)
+	static class Config {
+
+	}
+
+	static class ImportedByNestedTests {
+
+	}
+
+	static class ImportedByContainingTests {
+
+	}
+
+}