get rid of hamcrest; fix import order

src/test/java/de/ozgcloud/admin/common/errorhandling/ExceptionControllerITCase.java

@@ -7,6 +7,12 @@ import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.
 
 import java.util.Set;
 
+import jakarta.validation.ConstraintViolation;
+import jakarta.validation.ConstraintViolationException;
+import jakarta.validation.Validation;
+import jakarta.validation.Validator;
+import jakarta.validation.constraints.NotEmpty;
+
 import org.apache.commons.lang3.StringUtils;
 import org.assertj.core.util.Arrays;
 import org.junit.jupiter.api.Nested;
@@ -21,11 +27,6 @@ import org.springframework.test.web.servlet.ResultActions;
 import de.ozgcloud.admin.RootController;
 import de.ozgcloud.admin.RootModelAssembler;
 import de.ozgcloud.common.test.ITCase;
-import jakarta.validation.ConstraintViolation;
-import jakarta.validation.ConstraintViolationException;
-import jakarta.validation.Validation;
-import jakarta.validation.Validator;
-import jakarta.validation.constraints.NotEmpty;
 import lombok.Builder;
 import lombok.Getter;
 import lombok.SneakyThrows;

src/test/java/de/ozgcloud/admin/common/errorhandling/ExceptionControllerTest.java

@@ -21,7 +21,7 @@
  */
 package de.ozgcloud.admin.common.errorhandling;
 
-import static org.hamcrest.CoreMatchers.*;
+import static org.junit.Assert.*;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
 
@@ -39,6 +39,8 @@ import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
+import com.jayway.jsonpath.JsonPath;
+
 import de.ozgcloud.common.errorhandling.TechnicalException;
 import lombok.SneakyThrows;
 
@@ -292,7 +294,7 @@ class ExceptionControllerTest {
 				void shouldContainErrorMessage() {
 					var result = doPerformGet();
 
-					result.andExpect(content().string(containsString("Functional error: error message")));
+					assertTrue(getDetailFromResponseContent(result).contains("Functional error: error message"));
 				}
 
 				@SneakyThrows
@@ -300,7 +302,7 @@ class ExceptionControllerTest {
 				void shouldContainExceptionId() {
 					var result = doPerformGet();
 
-					result.andExpect(content().string(containsString("(ExceptionId: ")));
+					assertTrue(getDetailFromResponseContent(result).contains("(ExceptionId: "));
 				}
 			}
 
@@ -370,7 +372,7 @@ class ExceptionControllerTest {
 				void shouldContainErrorMessage() {
 					var result = doPerformGet();
 
-					result.andExpect(content().string(containsString("error message")));
+					assertTrue(getDetailFromResponseContent(result).contains("error message"));
 				}
 
 				@SneakyThrows
@@ -378,7 +380,7 @@ class ExceptionControllerTest {
 				void shouldContainExceptionId() {
 					var result = doPerformGet();
 
-					result.andExpect(content().string(containsString("(ExceptionId: ")));
+					assertTrue(getDetailFromResponseContent(result).contains("(ExceptionId: "));
 				}
 			}
 
@@ -403,6 +405,11 @@ class ExceptionControllerTest {
 			return mockMvc.perform(get(TEST_ERROR_ENDPOINT));
 		}
 	}
+
+	@SneakyThrows
+	private String getDetailFromResponseContent(ResultActions resultActions) {
+		return JsonPath.read(resultActions.andReturn().getResponse().getContentAsString(), "$.detail");
+	}
 }
 
 @RestController