@Test
public void testMailRollsOff() {
MailMessage firstMessage = new MailMessageImpl();
firstMessage.appendBody("First Post!");
mailStore.addMessage(firstMessage);
assertEquals("First Post!", mailStore.getMessage(0).getBody());
for (int i = 0; i < 100; i++) {
addAMessage();
}
assertEquals(100, mailStore.getEmailCount());
assertEquals("", mailStore.getMessage(0).getBody());
}
@Test
public void testGettingMailFromEmptyMailStoreThrowsIndexOutOfBounds() {
try {
mailStore.getMessage(0);
fail("Should have raised exception.");
} catch (IndexOutOfBoundsException ignored) {
}
}
@Test
public void testGettingMail0FromMailStoreWithAnItemWorks() {
addAMessage();
assertNotNull(mailStore.getMessage(0));
}
@Test
public void testAddOneMessageLeavesOneMailInMailMessagesArray() {
addAMessage();
assertEquals(1, mailStore.getMessages().length);
}
@Test
public void testNewMailStoreHasEmptyMailList() {
assertEquals(0, mailStore.getMessages().length);
}
private void addAMessage() {
MailMessage message = new MailMessageImpl();
mailStore.addMessage(message);
}
@Test
public void testAddOneMessageLeavesOneMail() {
addAMessage();
assertEquals(1, mailStore.getEmailCount());
}
@Test
public void testNewMailStoreHasNoMail() {
assertEquals(0, mailStore.getEmailCount());
}