src/test/java/com/android/volley/toolbox/BaseHttpStackTest.java

package com.android.volley.toolbox;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;

import com.android.volley.AuthFailureError;
import com.android.volley.Header;
import com.android.volley.Request;
import com.android.volley.mock.TestRequest;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.robolectric.RobolectricTestRunner;

@RunWith(RobolectricTestRunner.class)
public class BaseHttpStackTest {
    private static final Request<?> REQUEST = new TestRequest.Get();
    private static final Map<String, String> ADDITIONAL_HEADERS = Collections.emptyMap();

    @Mock private InputStream mContent;

    @Before
    public void setUp() {
        MockitoAnnotations.initMocks(this);
    }

    @Test
    public void legacyRequestWithoutBody() throws Exception {
        BaseHttpStack stack =
                new BaseHttpStack() {
                    @Override
                    public HttpResponse executeRequest(
                            Request<?> request, Map<String, String> additionalHeaders)
                            throws IOException, AuthFailureError {
                        assertSame(REQUEST, request);
                        assertSame(ADDITIONAL_HEADERS, additionalHeaders);
                        return new HttpResponse(12345, Collections.<Header>emptyList());
                    }
                };
        org.apache.http.HttpResponse resp = stack.performRequest(REQUEST, ADDITIONAL_HEADERS);
        assertEquals(12345, resp.getStatusLine().getStatusCode());
        assertEquals(0, resp.getAllHeaders().length);
        assertNull(resp.getEntity());
    }

    @Test
    public void legacyResponseWithBody() throws Exception {
        BaseHttpStack stack =
                new BaseHttpStack() {
                    @Override
                    public HttpResponse executeRequest(
                            Request<?> request, Map<String, String> additionalHeaders)
                            throws IOException, AuthFailureError {
                        assertSame(REQUEST, request);
                        assertSame(ADDITIONAL_HEADERS, additionalHeaders);
                        return new HttpResponse(
                                12345, Collections.<Header>emptyList(), 555, mContent);
                    }
                };
        org.apache.http.HttpResponse resp = stack.performRequest(REQUEST, ADDITIONAL_HEADERS);
        assertEquals(12345, resp.getStatusLine().getStatusCode());
        assertEquals(0, resp.getAllHeaders().length);
        assertEquals(555L, resp.getEntity().getContentLength());
        assertSame(mContent, resp.getEntity().getContent());
    }

    @Test
    public void legacyResponseHeaders() throws Exception {
        BaseHttpStack stack =
                new BaseHttpStack() {
                    @Override
                    public HttpResponse executeRequest(
                            Request<?> request, Map<String, String> additionalHeaders)
                            throws IOException, AuthFailureError {
                        assertSame(REQUEST, request);
                        assertSame(ADDITIONAL_HEADERS, additionalHeaders);
                        List<Header> headers = new ArrayList<>();
                        headers.add(new Header("HeaderA", "ValueA"));
                        headers.add(new Header("HeaderB", "ValueB_1"));
                        headers.add(new Header("HeaderB", "ValueB_2"));
                        return new HttpResponse(12345, headers);
                    }
                };
        org.apache.http.HttpResponse resp = stack.performRequest(REQUEST, ADDITIONAL_HEADERS);
        assertEquals(12345, resp.getStatusLine().getStatusCode());
        assertEquals(3, resp.getAllHeaders().length);
        assertEquals("HeaderA", resp.getAllHeaders()[0].getName());
        assertEquals("ValueA", resp.getAllHeaders()[0].getValue());
        assertEquals("HeaderB", resp.getAllHeaders()[1].getName());
        assertEquals("ValueB_1", resp.getAllHeaders()[1].getValue());
        assertEquals("HeaderB", resp.getAllHeaders()[2].getName());
        assertEquals("ValueB_2", resp.getAllHeaders()[2].getValue());
        assertNull(resp.getEntity());
    }
}