Added a spring-boot application shell with a dummy message

src/main/java/click/poweronoff/satellite/MySmallSatelliteApplication.java

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+package click.poweronoff.satellite;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class MySmallSatelliteApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(MySmallSatelliteApplication.class, args);
+	}
+
+}

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

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+package click.poweronoff.satellite.api;
+
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+@Controller
+public class FeaturesController {
+    @RequestMapping("/features")
+    public @ResponseBody
+    String features() {
+        return "a dummy message";
+    }
+
+}

src/main/resources/application.properties

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+

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

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+package click.poweronoff.satellite.api;
+
+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.test.web.servlet.MockMvc;
+
+import static org.hamcrest.Matchers.containsString;
+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.status;
+
+@SpringBootTest
+@AutoConfigureMockMvc
+public class FeaturesControllerTest {
+    @Autowired
+    private MockMvc mockMvc;
+
+    @Test
+    public void shouldReturnDefaultMessage() throws Exception {
+        this.mockMvc.perform(get("/features")).andDo(print()).andExpect(status().isOk())
+                .andExpect(content().string(containsString("a dummy message")));
+    }
+
+}