added test for authentication

pom.xml

@@ -76,6 +76,12 @@
 			<version>42.6.0</version>
 		</dependency>
 
+		<dependency>
+			<groupId>org.apache.httpcomponents</groupId>
+			<artifactId>httpclient</artifactId>
+		</dependency>
+
+
 	</dependencies>
 
 	<build>

src/main/java/ntnu/idatt2016/v233/SmartMat/controller/AuthenticationController.java

@@ -19,7 +19,7 @@ import org.springframework.web.bind.annotation.RestController;
  *
  * @author Anders
  * @version 1.0
- * @since 04.04.2023
+ * @since 19.04.2023
  */
 
 @RestController

src/test/java/ntnu/idatt2016/v233/SmartMat/controller/AuthenticationControllerTest.java

+package ntnu.idatt2016.v233.SmartMat.controller;
+
+import ntnu.idatt2016.v233.SmartMat.dto.enums.Authority;
+import ntnu.idatt2016.v233.SmartMat.dto.request.LoginRequest;
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.boot.web.client.RestTemplateBuilder;
+import org.springframework.http.*;
+import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
+import org.springframework.security.authentication.AuthenticationManager;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.authority.SimpleGrantedAuthority;
+import org.springframework.web.client.DefaultResponseErrorHandler;
+import org.springframework.web.client.RestTemplate;
+
+import java.time.Duration;
+import java.util.Collection;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.when;
+
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.DEFINED_PORT)
+
+public class AuthenticationControllerTest {
+
+    @MockBean
+    private AuthenticationManager authenticationManager;
+
+
+    @Test
+    public void token_validCredentials_shouldReturnToken() {
+        LoginRequest loginRequest = new LoginRequest("kari123", "sjokoladekake");
+
+        when(authenticationManager.authenticate(any(Authentication.class))).thenReturn(new Authentication() {
+            @Override
+            public Collection<? extends GrantedAuthority> getAuthorities() {
+                return List.of(new SimpleGrantedAuthority(Authority.USER.toString()));
+            }
+
+            @Override
+            public Object getCredentials() {
+                return "test";
+            }
+
+            @Override
+            public Object getDetails() {
+                return "test";
+            }
+
+            @Override
+            public Object getPrincipal() {
+                return "test";
+            }
+
+            @Override
+            public boolean isAuthenticated() {
+                return true;
+            }
+
+            @Override
+            public void setAuthenticated(boolean isAuthenticated) throws IllegalArgumentException {
+
+            }
+
+            @Override
+            public String getName() {
+                return "test";
+            }
+        });
+
+
+
+        RestTemplateBuilder rb = new RestTemplateBuilder();
+        rb.setConnectTimeout(Duration.ofSeconds(10));
+        rb.setReadTimeout(Duration.ofSeconds(10));
+        rb.requestFactory(() -> new HttpComponentsClientHttpRequestFactory());
+        rb.errorHandler(new DefaultResponseErrorHandler(){
+            protected boolean hasError(HttpStatus statusCode) {
+                return statusCode.is5xxServerError();
+            }
+        });
+
+
+        RestTemplate restTemplate = rb.build();
+
+
+        ResponseEntity<String> responseEntity = restTemplate.postForEntity("http://localhost:8080/api/auth/credentials", loginRequest, String.class);
+
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertNotNull(responseEntity.getBody());
+        assertFalse(responseEntity.getBody().isEmpty());
+    }
+
+}