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Add more tests 😆

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Anas Elgarhy 2022-10-12 18:53:53 +02:00
parent fa39f358ce
commit da1f1ea567
1 changed files with 65 additions and 2 deletions
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67
src/repl.rs
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@ -61,13 +61,13 @@ impl Repl {
self.loop_body.push_str(&user_input[index..]);
self.loop_depth = 1;
user_input = user_input[..index].to_string();
},
}
Some(_) => {
self.loop_body.push_str(&user_input);
user_input.matches('[').for_each(|_| self.loop_depth += 1);
user_input.matches(']').for_each(|_| self.loop_depth -= 1);
return;
},
}
_ => {
if user_input.contains(']') {
if self.loop_depth == 0 {
@ -360,4 +360,67 @@ mod tests {
repl.process(line);
}
}
#[test]
fn print_my_first_name_in_one_command() {
let interpreter = Interpreter::new(
10,
vec![],
);
let mut repl = Repl::new(interpreter);
let code = "++++++++[>++++[>++<-]>>>>>>++[<<<->>>-]<<<<<<<-]>>+.<<++++[>+++
[>+++<-]>++<<-]>>+.<<+++[>+++[>-<-]>-<<-]>>-.<<++++++[>>+++<<-]>>.".to_string();
repl.process(code);
}
#[test]
fn print_hello_world() {
let interpreter = Interpreter::new(
10,
vec![],
);
let mut repl = Repl::new(interpreter);
let _ = "[ This program prints \"Hello World!\" and a newline to the screen, its
length is 106 active command characters. [It is not the shortest.]
]
++++++++ Set Cell #0 to 8
[
>++++ Add 4 to Cell #1; this will always set Cell #1 to 4
[ as the cell will be cleared by the loop
>++ Add 2 to Cell #2
>+++ Add 3 to Cell #3
>+++ Add 3 to Cell #4
>+ Add 1 to Cell #5
<<<<- Decrement the loop counter in Cell #1
] Loop until Cell #1 is zero; number of iterations is 4
>+ Add 1 to Cell #2
>+ Add 1 to Cell #3
>- Subtract 1 from Cell #4
>>+ Add 1 to Cell #6
[<] Move back to the first zero cell you find; this will
be Cell #1 which was cleared by the previous loop
<- Decrement the loop Counter in Cell #0
] Loop until Cell #0 is zero; number of iterations is 8
The result of this is:
Cell no : 0 1 2 3 4 5 6
Contents: 0 0 72 104 88 32 8
Pointer : ^
>>. Cell #2 has value 72 which is 'H'
>---. Subtract 3 from Cell #3 to get 101 which is 'e'
+++++++..+++. Likewise for 'llo' from Cell #3
>>. Cell #5 is 32 for the space
<-. Subtract 1 from Cell #4 for 87 to give a 'W'
<. Cell #3 was set to 'o' from the end of 'Hello'
+++.------.--------. Cell #3 for 'rl' and 'd'
>>+. Add 1 to Cell #5 gives us an exclamation point
>++. And finally a newline from Cell #6
".to_string().split("\n").for_each(|s| repl.process(s.to_string()));
}
}