Replace @CsvSource with @ValueSource where feasible

@ValueSource is more appropriate for single parameter.

See gh-36062

spring-boot-project/spring-boot-tools/spring-boot-test-support/src/test/java/org/springframework/boot/testsupport/classpath/ModifiedClassPathExtensionForkParameterizedTests.java

@@ -20,7 +20,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 import org.junit.jupiter.params.ParameterizedTest;
-import org.junit.jupiter.params.provider.CsvSource;
+import org.junit.jupiter.params.provider.ValueSource;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
@@ -28,6 +28,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  * Tests for {@link ForkedClassPath @ForkedClassPath}.
  *
  * @author Andy Wilkinson
+ * @author Yanming Zhou
  */
 @ForkedClassPath
 class ModifiedClassPathExtensionForkParameterizedTests {
@@ -35,7 +36,7 @@ class ModifiedClassPathExtensionForkParameterizedTests {
 	private static final List<String> arguments = new ArrayList<>();
 
 	@ParameterizedTest
-	@CsvSource({ "one", "two", "three" })
+	@ValueSource(strings = { "one", "two", "three" })
 	void testIsInvokedOnceForEachArgument(String argument) {
 		if (argument.equals("one")) {
 			assertThat(arguments).isEmpty();

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/config/ConfigDataEnvironmentTests.java

@@ -28,7 +28,7 @@ import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.TestInfo;
 import org.junit.jupiter.params.ParameterizedTest;
-import org.junit.jupiter.params.provider.CsvSource;
+import org.junit.jupiter.params.provider.ValueSource;
 
 import org.springframework.boot.ConfigurableBootstrapContext;
 import org.springframework.boot.DefaultBootstrapContext;
@@ -54,6 +54,7 @@ import static org.mockito.Mockito.mock;
  *
  * @author Phillip Webb
  * @author Madhura Bhave
+ * @author Yanming Zhou
  */
 class ConfigDataEnvironmentTests {
 
@@ -229,7 +230,7 @@ class ConfigDataEnvironmentTests {
 	}
 
 	@ParameterizedTest
-	@CsvSource({ "include", "include[0]" })
+	@ValueSource(strings = { "include", "include[0]" })
 	void processAndApplyWhenHasProfileIncludeInProfileSpecificDocumentThrowsException(String property, TestInfo info) {
 		this.environment.setProperty("spring.config.location", getConfigLocation(info));
 		ConfigDataEnvironment configDataEnvironment = new ConfigDataEnvironment(this.logFactory, this.bootstrapContext,
@@ -253,7 +254,7 @@ class ConfigDataEnvironmentTests {
 	}
 
 	@ParameterizedTest
-	@CsvSource({ "spring.profiles.include", "spring.profiles.include[0]" })
+	@ValueSource(strings = { "spring.profiles.include", "spring.profiles.include[0]" })
 	void processAndApplyIncludesProfilesFromSpringProfilesInclude(String property, TestInfo info) {
 		this.environment.setProperty("spring.config.location", getConfigLocation(info));
 		ConfigDataEnvironment configDataEnvironment = new ConfigDataEnvironment(this.logFactory, this.bootstrapContext,