- GET /features is now tested on controller level

- added DataService as a data provider

src/main/java/click/poweronoff/satellite/api/FeaturesController.java

@@ -1,16 +1,26 @@
 package click.poweronoff.satellite.api;
 
 
+import click.poweronoff.satellite.domain.Feature;
+import click.poweronoff.satellite.service.DataService;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.ResponseBody;
 
+import java.util.List;
+
 @Controller
 public class FeaturesController {
-    @RequestMapping("/features")
+
+    @Autowired
+    DataService dataService;
+
+    @RequestMapping(value = "/features", method = RequestMethod.GET, produces = "application/json")
     public @ResponseBody
-    String features() {
-        return "a dummy message";
+    List<Feature> features() {
+        return dataService.getAllFeatures();
     }
 
 }

src/main/java/click/poweronoff/satellite/domain/Feature.java

@@ -0,0 +1,21 @@
+package click.poweronoff.satellite.domain;
+
+import lombok.AllArgsConstructor;
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+
+@Getter
+@EqualsAndHashCode
+@AllArgsConstructor
+public class Feature {
+
+    private String id;
+
+    private long timestamp;
+
+    private long beginViewingDate;
+
+    private long endViewingDate;
+
+    private String missionName;
+}

src/main/java/click/poweronoff/satellite/service/DataService.java

@@ -0,0 +1,32 @@
+package click.poweronoff.satellite.service;
+
+import click.poweronoff.satellite.domain.Feature;
+
+import java.util.List;
+
+public interface DataService {
+
+    /**
+     * returned all possible Features as a list
+     *
+     * @return list of Features
+     */
+    List<Feature> getAllFeatures();
+
+    /**
+     * returned specific Feature by given id
+     *
+     * @param featureId feature id
+     * @return Feature
+     */
+    Feature getFeature(final String featureId);
+
+
+    /**
+     * returned a picture as a Base64 encoded String representation for given feature id
+     *
+     * @param featureId feature id
+     * @return a Base64 encoded String representation for a picture
+     */
+    String getPictureAsB64(final String featureId);
+}

src/main/java/click/poweronoff/satellite/service/DataServiceImpl.java

@@ -0,0 +1,24 @@
+package click.poweronoff.satellite.service;
+
+import click.poweronoff.satellite.domain.Feature;
+import org.springframework.stereotype.Component;
+
+import java.util.List;
+
+@Component
+public class DataServiceImpl implements DataService {
+
+    public List<Feature> getAllFeatures() {
+        return null;
+    }
+
+    @Override
+    public Feature getFeature(String featureId) {
+        return null;
+    }
+
+    @Override
+    public String getPictureAsB64(String featureId) {
+        return null;
+    }
+}

src/test/java/click/poweronoff/satellite/api/FeaturesControllerTest.java

@@ -1,15 +1,22 @@
 package click.poweronoff.satellite.api;
 
+import click.poweronoff.satellite.domain.Feature;
+import click.poweronoff.satellite.service.DataService;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
 import org.springframework.test.web.servlet.MockMvc;
 
-import static org.hamcrest.Matchers.containsString;
+import java.util.List;
+
+import static org.hamcrest.Matchers.is;
+import static org.mockito.Mockito.when;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
 @SpringBootTest
@@ -18,10 +25,22 @@ public class FeaturesControllerTest {
     @Autowired
     private MockMvc mockMvc;
 
+    @MockBean
+    DataService dataService;
+
     @Test
-    public void shouldReturnDefaultMessage() throws Exception {
-        this.mockMvc.perform(get("/features")).andDo(print()).andExpect(status().isOk())
-                .andExpect(content().string(containsString("a dummy message")));
+    public void getFeaturesShouldReturnDefaultMessage() throws Exception {
+        when(dataService.getAllFeatures()).thenReturn(List.of(new Feature("feature-id", 123L, 234L, 345L, "mission")));
+        this.mockMvc.perform(get("/features")).andDo(print())
+                .andExpect(status().isOk())
+                .andExpect(content().contentType("application/json"))
+                .andExpect(jsonPath("$[0].id").exists())
+                .andExpect(jsonPath("$[0].id", is("feature-id")))
+                .andExpect(jsonPath("$[0].timestamp", is(123)))
+                .andExpect(jsonPath("$[0].beginViewingDate", is(234)))
+                .andExpect(jsonPath("$[0].endViewingDate", is(345)))
+                .andExpect(jsonPath("$[0].missionName", is("mission"))
+                );
     }
 
 }