With data-client added as library module (#3656)

* With data-client added as library module

* Fix build

data-client/src/test/java/org/wikipedia/TestAppAdapter.java

@@ -0,0 +1,71 @@
+package org.wikipedia;
+
+import androidx.annotation.NonNull;
+
+import org.wikipedia.dataclient.Service;
+import org.wikipedia.dataclient.SharedPreferenceCookieManager;
+import org.wikipedia.dataclient.WikiSite;
+import org.wikipedia.dataclient.okhttp.TestStubInterceptor;
+import org.wikipedia.dataclient.okhttp.UnsuccessfulResponseInterceptor;
+import org.wikipedia.login.LoginResult;
+
+import okhttp3.OkHttpClient;
+
+public class TestAppAdapter extends AppAdapter {
+
+    @Override
+    public String getMediaWikiBaseUrl() {
+        return Service.WIKIPEDIA_URL;
+    }
+
+    @Override
+    public String getRestbaseUriFormat() {
+        return "%1$s://%2$s/api/rest_v1/";
+    }
+
+    @Override
+    public OkHttpClient getOkHttpClient(@NonNull WikiSite wikiSite) {
+        return new OkHttpClient.Builder()
+                .addInterceptor(new UnsuccessfulResponseInterceptor())
+                .addInterceptor(new TestStubInterceptor())
+                .build();
+    }
+
+    @Override
+    public int getDesiredLeadImageDp() {
+        return 0;
+    }
+
+    @Override
+    public boolean isLoggedIn() {
+        return false;
+    }
+
+    @Override
+    public String getUserName() {
+        return null;
+    }
+
+    @Override
+    public String getPassword() {
+        return null;
+    }
+
+    @Override
+    public void updateAccount(@NonNull LoginResult result) {
+    }
+
+    @Override
+    public SharedPreferenceCookieManager getCookies() {
+        return null;
+    }
+
+    @Override
+    public void setCookies(@NonNull SharedPreferenceCookieManager cookies) {
+    }
+
+    @Override
+    public boolean logErrorsInsteadOfCrashing() {
+        return false;
+    }
+}