Add okhhtp3 library

build.gradle

@@ -32,6 +32,7 @@ dependencies {
         exclude module: "groovy-all"
     }
     implementation 'junit:junit:4.12'
+    implementation("com.squareup.okhttp3:okhttp:4.4.0")
 
 }
 

src/test/java/com/github/speechrank/rest/GetConferencesTest.java

@@ -0,0 +1,35 @@
+package com.github.speechrank.rest;
+
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+import org.junit.Test;
+
+import java.io.IOException;
+
+import static org.junit.Assert.assertEquals;
+
+public class GetConferencesTest {
+
+    @Test
+    public void conferences() throws IOException {
+        OkHttpClient client = new OkHttpClient().newBuilder()
+            .build();
+        Request request = new Request.Builder()
+            .url("https://76ea5e2c-c86f-4a27-baf2-c1667b6a1f35.mock.pstmn.io/api/conferences")
+            .method("GET", null)
+            .build();
+        Response response = client.newCall(request).execute();
+
+        //check is content-type is application/json
+        assertEquals("text/html; charset=utf-8", response.header("content-type"));
+
+        //check if status code is 200
+        assertEquals(200, response.code());
+
+        //check responseBody
+        String responseBody = response.body().string();
+        assertEquals("[{\"year\":\"2019\",\"conferences\":[{\"id\":\"12\",\"name\":\"DevConf\",\"presentations\":25},{\"id\":\"31\",\"name\":\"Boiling Frogs\",\"presentations\":25},{\"id\":\"41\",\"name\":\"Scalar\",\"presentations\":16},{\"id\":\"51\",\"name\":\"Confitura\",\"presentations\":25}]},{\"year\":\"2018\",\"conferences\":[{\"id\":\"21\",\"name\":\"Boiling Frogs\",\"presentations\":25},{\"id\":\"51\",\"name\":\"Confitura\",\"presentations\":25}]},{\"year\":\"2017\",\"conferences\":[{\"id\":\"11\",\"name\":\"DevConf\",\"presentations\":25}]}]", responseBody);
+        //TODO: powyzsza asercje napewno da sie ulepszyc, ale jeszcze nie wiem jak :)
+    }
+}