diff --git a/module/spring-boot-groovy-templates/src/test/java/org/springframework/boot/groovy/template/autoconfigure/GroovyTemplateAutoConfigurationTests.java b/module/spring-boot-groovy-templates/src/test/java/org/springframework/boot/groovy/template/autoconfigure/GroovyTemplateAutoConfigurationTests.java
index d49ead10108..5f0322b7dbc 100644
--- a/module/spring-boot-groovy-templates/src/test/java/org/springframework/boot/groovy/template/autoconfigure/GroovyTemplateAutoConfigurationTests.java
+++ b/module/spring-boot-groovy-templates/src/test/java/org/springframework/boot/groovy/template/autoconfigure/GroovyTemplateAutoConfigurationTests.java
@@ -25,6 +25,7 @@ import java.util.Locale;
 import java.util.Map;
 
 import groovy.text.markup.BaseTemplate;
+import groovy.text.markup.DelegatingIndentWriter;
 import groovy.text.markup.MarkupTemplateEngine;
 import groovy.text.markup.TemplateConfiguration;
 import jakarta.servlet.http.HttpServletRequest;
@@ -159,9 +160,16 @@ class GroovyTemplateAutoConfigurationTests {
 		assertThat(result).contains("suffixed");
 	}
 
+	@Test
+	void defaultResourceLoaderPath() throws Exception {
+		registerAndRefreshContext();
+		assertThat(this.context.getBean(GroovyMarkupConfigurer.class).getResourceLoaderPath())
+			.isEqualTo(GroovyTemplateProperties.DEFAULT_RESOURCE_LOADER_PATH);
+	}
+
 	@Test
 	@WithResource(name = "custom-templates/custom.tpl", content = "yield \"custom\"")
-	void customTemplateLoaderPath() throws Exception {
+	void customResourceLoaderPath() throws Exception {
 		registerAndRefreshContext("spring.groovy.template.resource-loader-path:classpath:/custom-templates/");
 		MockHttpServletResponse response = render("custom");
 		String result = response.getContentAsString();
@@ -199,6 +207,13 @@ class GroovyTemplateAutoConfigurationTests {
 		assertThat(this.context.getBean(GroovyMarkupConfigurer.class).isAutoIndent()).isTrue();
 	}
 
+	@Test
+	void defaultAutoIndentString() {
+		registerAndRefreshContext();
+		assertThat(this.context.getBean(GroovyMarkupConfigurer.class).getAutoIndentString())
+			.isEqualTo(DelegatingIndentWriter.SPACES);
+	}
+
 	@Test
 	void customAutoIndentString() {
 		registerAndRefreshContext("spring.groovy.template.auto-indent-string:\\t");
@@ -211,6 +226,13 @@ class GroovyTemplateAutoConfigurationTests {
 		assertThat(this.context.getBean(GroovyMarkupConfigurer.class).isAutoNewLine()).isTrue();
 	}
 
+	@Test
+	void defaultBaseTemplateClass() {
+		registerAndRefreshContext();
+		assertThat(this.context.getBean(GroovyMarkupConfigurer.class).getBaseTemplateClass())
+			.isEqualTo(BaseTemplate.class);
+	}
+
 	@Test
 	void customBaseTemplateClass() {
 		registerAndRefreshContext("spring.groovy.template.base-template-class:" + CustomBaseTemplate.class.getName());
@@ -218,6 +240,12 @@ class GroovyTemplateAutoConfigurationTests {
 			.isEqualTo(CustomBaseTemplate.class);
 	}
 
+	@Test
+	void defaultDeclarationEncoding() {
+		registerAndRefreshContext();
+		assertThat(this.context.getBean(GroovyMarkupConfigurer.class).getDeclarationEncoding()).isNull();
+	}
+
 	@Test
 	void customDeclarationEncoding() {
 		registerAndRefreshContext("spring.groovy.template.declaration-encoding:UTF-8");
@@ -230,12 +258,25 @@ class GroovyTemplateAutoConfigurationTests {
 		assertThat(this.context.getBean(GroovyMarkupConfigurer.class).isExpandEmptyElements()).isTrue();
 	}
 
+	@Test
+	void defaultLocale() {
+		registerAndRefreshContext();
+		assertThat(this.context.getBean(GroovyMarkupConfigurer.class).getLocale()).isEqualTo(Locale.getDefault());
+	}
+
 	@Test
 	void customLocale() {
 		registerAndRefreshContext("spring.groovy.template.locale:en_US");
 		assertThat(this.context.getBean(GroovyMarkupConfigurer.class).getLocale()).isEqualTo(Locale.US);
 	}
 
+	@Test
+	void defaultNewLineString() {
+		registerAndRefreshContext();
+		assertThat(this.context.getBean(GroovyMarkupConfigurer.class).getNewLineString())
+			.isEqualTo(System.lineSeparator());
+	}
+
 	@Test
 	void customNewLineString() {
 		registerAndRefreshContext("spring.groovy.template.new-line-string:\\r\\n");