/** @throws Exception if an error occurs */
@Test
public void history() throws Exception {
final WebClient client = new WebClient();
final TopLevelWindow window = (TopLevelWindow) client.getCurrentWindow();
final History history = window.getHistory();
final MockWebConnection conn = new MockWebConnection();
conn.setResponse(
URL_FIRST,
"<html><body><a name='a' href='"
+ URL_SECOND
+ "'>foo</a>"
+ "<a name='b' href='#b'>bar</a></body></html>");
conn.setResponse(
URL_SECOND, "<html><body><a name='a' href='" + URL_THIRD + "'>foo</a></body></html>");
conn.setResponse(
URL_THIRD, "<html><body><a name='a' href='" + URL_FIRST + "'>foo</a></body></html>");
client.setWebConnection(conn);
assertEquals(0, history.getLength());
assertEquals(-1, history.getIndex());
// Load the first page.
HtmlPage page = client.getPage(URL_FIRST);
assertEquals(1, history.getLength());
assertEquals(0, history.getIndex());
assertNull(history.getUrl(-1));
assertEquals(URL_FIRST, history.getUrl(0));
assertEquals(
URL_FIRST, window.getEnclosedPage().getWebResponse().getRequestSettings().getUrl());
assertNull(history.getUrl(1));
// Go to the second page.
page = page.getAnchorByName("a").click();
assertEquals(2, history.getLength());
assertEquals(1, history.getIndex());
assertNull(history.getUrl(-1));
assertEquals(URL_FIRST, history.getUrl(0));
assertEquals(URL_SECOND, history.getUrl(1));
assertEquals(
URL_SECOND, window.getEnclosedPage().getWebResponse().getRequestSettings().getUrl());
assertNull(history.getUrl(2));
// Go to the third page.
page = page.getAnchorByName("a").click();
assertEquals(3, history.getLength());
assertEquals(2, history.getIndex());
assertNull(history.getUrl(-1));
assertEquals(URL_FIRST, history.getUrl(0));
assertEquals(URL_SECOND, history.getUrl(1));
assertEquals(URL_THIRD, history.getUrl(2));
assertEquals(
URL_THIRD, window.getEnclosedPage().getWebResponse().getRequestSettings().getUrl());
assertNull(history.getUrl(3));
// Cycle around back to the first page.
page = page.getAnchorByName("a").click();
assertEquals(4, history.getLength());
assertEquals(3, history.getIndex());
assertNull(history.getUrl(-1));
assertEquals(URL_FIRST, history.getUrl(0));
assertEquals(URL_SECOND, history.getUrl(1));
assertEquals(URL_THIRD, history.getUrl(2));
assertEquals(URL_FIRST, history.getUrl(3));
assertEquals(
URL_FIRST, window.getEnclosedPage().getWebResponse().getRequestSettings().getUrl());
assertNull(history.getUrl(4));
// Go to a hash on the current page.
final URL firstUrlWithHash = new URL(URL_FIRST, "#b");
page = page.getAnchorByName("b").click();
assertEquals(5, history.getLength());
assertEquals(4, history.getIndex());
assertNull(history.getUrl(-1));
assertEquals(URL_FIRST, history.getUrl(0));
assertEquals(URL_SECOND, history.getUrl(1));
assertEquals(URL_THIRD, history.getUrl(2));
assertEquals(URL_FIRST, history.getUrl(3));
assertEquals(firstUrlWithHash, history.getUrl(4));
assertEquals(
firstUrlWithHash, window.getEnclosedPage().getWebResponse().getRequestSettings().getUrl());
assertNull(history.getUrl(5));
history.back().back();
assertEquals(5, history.getLength());
assertEquals(2, history.getIndex());
assertNull(history.getUrl(-1));
assertEquals(URL_FIRST, history.getUrl(0));
assertEquals(URL_SECOND, history.getUrl(1));
assertEquals(URL_THIRD, history.getUrl(2));
assertEquals(URL_FIRST, history.getUrl(3));
assertEquals(firstUrlWithHash, history.getUrl(4));
assertEquals(
URL_THIRD, window.getEnclosedPage().getWebResponse().getRequestSettings().getUrl());
assertNull(history.getUrl(5));
history.forward();
assertEquals(5, history.getLength());
assertEquals(3, history.getIndex());
assertNull(history.getUrl(-1));
assertEquals(URL_FIRST, history.getUrl(0));
assertEquals(URL_SECOND, history.getUrl(1));
assertEquals(URL_THIRD, history.getUrl(2));
assertEquals(URL_FIRST, history.getUrl(3));
assertEquals(firstUrlWithHash, history.getUrl(4));
assertEquals(
URL_FIRST, window.getEnclosedPage().getWebResponse().getRequestSettings().getUrl());
assertNull(history.getUrl(5));
}
