configure jackson in ObjectMapperConfiguration

web/src/integrationTest/java/de/cotto/lndmanagej/controller/ObjectMapperConfigurationIT.java

@@ -0,0 +1,46 @@
+package de.cotto.lndmanagej.controller;
+
+import de.cotto.lndmanagej.controller.dto.ObjectMapperConfiguration;
+import de.cotto.lndmanagej.model.ChannelIdResolver;
+import de.cotto.lndmanagej.service.ChannelService;
+import de.cotto.lndmanagej.service.OwnNodeService;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.context.annotation.Import;
+import org.springframework.test.web.servlet.MockMvc;
+
+import java.util.Set;
+
+import static de.cotto.lndmanagej.model.LocalOpenChannelFixtures.LOCAL_OPEN_CHANNEL;
+import static org.mockito.Mockito.when;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+
+@WebMvcTest(controllers = StatusController.class)
+@Import(ObjectMapperConfiguration.class)
+class ObjectMapperConfigurationIT {
+    private static final String PREFIX = "/api/status/";
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @MockBean
+    @SuppressWarnings("unused")
+    private ChannelIdResolver channelIdResolver;
+
+    @MockBean
+    private ChannelService channelService;
+
+    @MockBean
+    @SuppressWarnings("unused")
+    private OwnNodeService ownNodeService;
+
+    @Test
+    void output_is_pretty_printed() throws Exception {
+        when(channelService.getOpenChannels()).thenReturn(Set.of(LOCAL_OPEN_CHANNEL));
+        mockMvc.perform(get(PREFIX + "/open-channels/"))
+                .andExpect(content().string("{\n  \"channels\" : [ \"712345x123x1\" ]\n}"));
+    }
+}