mock/set applicationContext to fix test

goofy-server/src/test/java/de/itvsh/goofy/wiedervorlage/WiedervorlageModelAssemblerTest.java

@@ -24,17 +24,23 @@
 package de.itvsh.goofy.wiedervorlage;
 
 import static org.assertj.core.api.Assertions.*;
+import static org.mockito.ArgumentMatchers.*;
+import static org.mockito.Mockito.*;
 
 import java.util.Collections;
 
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
+import org.springframework.context.ApplicationContext;
+import org.springframework.core.env.Environment;
 import org.springframework.hateoas.EntityModel;
 import org.springframework.hateoas.IanaLinkRelations;
 import org.springframework.hateoas.server.EntityLinks;
 
+import de.itvsh.goofy.common.UserProfileUrlProvider;
 import de.itvsh.goofy.common.file.OzgFileTestFactory;
 import de.itvsh.goofy.vorgang.VorgangHeaderTestFactory;
 
@@ -48,6 +54,17 @@ class WiedervorlageModelAssemblerTest {
 	@Mock
 	private EntityLinks entityLinks;
 
+	private UserProfileUrlProvider urlProvider = new UserProfileUrlProvider();
+
+	@BeforeEach
+	void initTest() {
+		var context = mock(ApplicationContext.class);
+		var environment = mock(Environment.class);
+		when(environment.getProperty(anyString())).thenReturn("test/");
+		when(context.getEnvironment()).thenReturn(environment);
+		urlProvider.setApplicationContext(context);
+	}
+
 	@Nested
 	class TestLinksOnModel {
 		private static final String COMMAND_BY_WIEDERVORLAGE_PATH = WiedervorlageCommandController.WIEDERVORLAGE_COMMANDS