@Test
public void testEmptyVectorGraphics2DStartsWithCreateCommand() {
VectorGraphics2D g = new VectorGraphics2D();
Iterable<Command<?>> commands = g.getCommands();
Iterator<Command<?>> commandIterator = commands.iterator();
assertTrue(commandIterator.hasNext());
Command<?> firstCommand = commandIterator.next();
assertTrue(firstCommand instanceof CreateCommand);
assertEquals(g, ((CreateCommand) firstCommand).getValue());
}
@Test
public void testCreateEmitsCreateCommand() {
VectorGraphics2D g = new VectorGraphics2D();
Iterable<Command<?>> gCommands = g.getCommands();
Iterator<Command<?>> gCommandIterator = gCommands.iterator();
CreateCommand gCreateCommand = (CreateCommand) gCommandIterator.next();
VectorGraphics2D g2 = (VectorGraphics2D) g.create();
CreateCommand g2CreateCommand = null;
for (Command<?> g2Command : g2.getCommands()) {
if (g2Command instanceof CreateCommand) {
g2CreateCommand = (CreateCommand) g2Command;
}
}
assertNotEquals(gCreateCommand, g2CreateCommand);
assertEquals(g2, g2CreateCommand.getValue());
}
