@Test
public void test_last_exit() {
SymbolGenerator s = new SymbolGenerator();
assertThat(s.next(), is("__$$_symbol_0"));
s.exit();
assertThat(s.next(), is("__$$_symbol_1"));
}
@Test
public void test_unnamed_generator() {
SymbolGenerator sym = new SymbolGenerator();
assertThat(sym.next(), is("__$$_symbol_0"));
assertThat(sym.enter("sub").next(), is("__$$_symbol_sub_1"));
sym.exit();
assertThat(sym.next("foo"), is("__$$_symbol_foo_2"));
}
@Test
public void test_named_generator() {
SymbolGenerator sym = new SymbolGenerator("closure");
assertThat(sym.next(), is("__$$_closure_0"));
assertThat(sym.next(), is("__$$_closure_1"));
sym.enter("scope");
assertThat(sym.next(), is("__$$_closure_scope_2"));
sym.enter("subscope");
assertThat(sym.next(), is("__$$_closure_scope_subscope_3"));
sym.exit().exit();
assertThat(sym.next(), is("__$$_closure_4"));
}