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ResponseTest.java
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package core;
import org.junit.Test;
import static core.HttpStatusCode.*;
import static org.junit.Assert.*;
public class ResponseTest {
@Test
public void testSetDefaultHttpVersionInCaseOfEmptyConstructor() throws Exception {
Response response = new Response();
assertEquals("HTTP/1.1", response.httpVersion);
}
@Test
public void testUseResponseStatusCodeFromRequest() throws Exception {
Request request = new Request();
request.responseStatusCode = NOT_FOUND;
Response response = new Response(request);
assertEquals(NOT_FOUND, response.responseStatusCode);
}
@Test
public void testUseHttpVersionFromRequest() throws Exception {
Request request = new Request();
request.httpVersion = "HTTP/1.0";
Response response = new Response(request);
assertEquals("HTTP/1.0", response.httpVersion);
}
@Test
public void testUseRequestMethodFromRequest() throws Exception {
Request request = new Request();
request.requestMethod = "GET";
Response response = new Response(request);
assertEquals("GET", response.requestMethod);
}
@Test
public void testGenerateErrorResponse() throws Exception {
Request request = new Request();
request.responseStatusCode = NOT_FOUND;
Response response = new Response(request);
assertEquals(NOT_FOUND, response.responseStatusCode);
assertEquals(NOT_FOUND.toString(), response.body);
}
@Test
public void testSetStandardHeadersInErrorResponse() throws Exception {
Request request = new Request();
request.responseStatusCode = NOT_IMPLEMENTED;
Response response = new Response(request);
assertTrue(response.getHeader("Content-Type") != null);
assertTrue(response.getHeader("Last-modified") != null);
}
@Test
public void testSetBody() throws Exception {
Response response = new Response();
response.setBody("test body");
assertEquals("test body", response.getBody());
}
@Test
public void testSetContentLengthWhenBodyIsSet() throws Exception {
Response response = new Response();
response.setBody("test body");
assertEquals("9", response.getHeader("Content-Length"));
}
@Test
public void testNoBodyIsAllowedForResponsesToHeadRequests_RFC2616_9_4() throws Exception {
Response response = new Response();
response.requestMethod = "HEAD";
response.setBody("Some body here");
assertEquals(null, response.body);
assertEquals("14", response.getHeader("Content-Length"));
}
@Test
public void testMakeSureNoContentHeadersAreSentWithoutBody() throws Exception {
Response response = new Response();
response.setHeader("Content-Type", "test");
assertTrue(!response.contentHeadersAreCorrect());
response.setBody("test");
assertTrue(response.contentHeadersAreCorrect());
}
@Test
public void testAllowContentHeadersForResponsesToHeadRequests_RFC2616_9_4() throws Exception {
Response response = new Response();
response.requestMethod = "HEAD";
response.setHeader("Content-Type", "test");
assertTrue(response.contentHeadersAreCorrect());
}
@Test
public void testGenerateMessageWithoutHeaders_RFC2616_6() throws Exception {
Response response = new Response();
response.responseStatusCode = OK;
assertEquals("HTTP/1.1 200 OK\r\n\r\n", response.generateMessage());
}
@Test
public void testGenerateMessageWithHeaders_RFC2616_6() throws Exception {
Response response = new Response();
response.responseStatusCode = OK;
response.setHeader("Header1", "value 1");
response.setHeader("Header2", "value 2");
assertEquals("HTTP/1.1 200 OK\r\nHeader1: value 1\r\nHeader2: value 2\r\n\r\n", response.generateMessage());
}
@Test
public void testGenerateMessageWithHeadersAndBody_RFC2616_6() throws Exception {
Response response = new Response();
response.responseStatusCode = OK;
response.setHeader("Header1", "value 1");
response.setBody("test");
assertEquals("HTTP/1.1 200 OK\r\nHeader1: value 1\r\nContent-Length: 4\r\n\r\ntest", response.generateMessage());
}
@Test
public void testGenerateMessageWithBodyAndNoHeaders_RFC2616_6() throws Exception {
Response response = new Response();
response.responseStatusCode = OK;
response.body = "test";
assertEquals("HTTP/1.1 200 OK\r\n\r\ntest", response.generateMessage());
}
@Test
public void testGenerateMessageValidatesStatusCodePresence() throws Exception {
Response response = new Response();
response.httpVersion = "HTTP/1.1";
try {
response.generateMessage();
fail();
} catch (RuntimeException e) {
assertEquals("Cannot generate a valid HTTP response without status code", e.getMessage());
}
}
@Test
public void testGenerateMessageValidatesHttpVersionPresence() throws Exception {
Response response = new Response();
response.responseStatusCode = OK;
response.httpVersion = null;
try {
response.generateMessage();
fail();
} catch (RuntimeException e) {
assertEquals("Cannot generate a valid HTTP response without HTTP version", e.getMessage());
}
}
@Test
public void testGenerateMessageValidatesContentHeaders() throws Exception {
Response response = new Response();
response.responseStatusCode = OK;
response.setHeader("Content-something", "test");
try {
response.generateMessage();
fail();
} catch (RuntimeException e) {
assertEquals("Content-* headers are not allowed without body in response to non-HEAD requests", e.getMessage());
}
}
}