func Test_Rot13(t *testing.T) {
lexer := lex.New("rot13.b", conf, strings.NewReader(rot13Prog))
parser := parse.New("rot13.b", conf, lexer)
prog := parser.Parse()
var result string
var tp *tape.Tape
var in *strings.Reader
var out bytes.Buffer
expect := "V'z gur ongzna!"
tp = tape.New()
in = strings.NewReader("I'm the batman!")
for _, i := range prog {
i.Eval(tp, in, &out)
}
result = out.String()
if result != expect {
t.Errorf("normal program: expected %s, got %s", expect, result)
}
// reset
tp = tape.New()
in = strings.NewReader("I'm the batman!")
out.Reset()
prog = program.Optimize(prog)
for _, i := range prog {
i.Eval(tp, in, &out)
}
result = out.String()
if result != expect {
t.Errorf("optimized program: expected %s, got %s", expect, result)
}
}
func Test_HelloWorld(t *testing.T) {
lexer := lex.New("hello_world.b", conf, strings.NewReader(helloWorldProg))
parser := parse.New("hello_world.b", conf, lexer)
prog := parser.Parse()
var result string
var tp *tape.Tape
var in *strings.Reader
var out bytes.Buffer
tp = tape.New()
in = strings.NewReader("")
expect := "Hello World!\n"
for _, i := range prog {
i.Eval(tp, in, &out)
}
result = out.String()
if result != expect {
t.Errorf("normal program: expected %s, got %s", expect, result)
}
// reset
tp = tape.New()
in = strings.NewReader("")
out.Reset()
prog = program.Optimize(prog)
for _, i := range prog {
i.Eval(tp, in, &out)
}
result = out.String()
if result != expect {
t.Errorf("optimized program: expected %s, got %s", expect, result)
}
}