Adding tests

- functional tests
- more tests
- tests tests tests

Signed-off-by: teo3300 <matteo.rogora@live.it>

.git_hooks_pre-commit-shadow

@@ -1 +0,0 @@
-.git/hooks/pre-commit

.git_hooks_pre-commit-shadow

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+# Quit when first command fails
+set -e
+
+# format code in a consistent way
+cargo fmt
+
+# yeet on any clippy warning
+cargo clippy -- -Dwarnings
+
+# check test pass
+cargo test

src/core.rs

@@ -50,7 +50,11 @@ pub fn ns_init() -> Env {
         "list?"     => Fun(|a| Ok(Bool(a.iter().all(|el| matches!(el, List(_))))), "Return true if the first argument is a list, false otherwise"),
         "empty?"    => Fun(|a| Ok(Bool(car(a)?.if_list()?.is_empty())), "Return true if the first parameter is an empty list, false otherwise, returns an error if the element is not a list"),
         "count"     => Fun(|a| Ok(Int(car(a)?.if_list()?.len() as isize)), "Return the number of elements in the first argument"),
+        "and"       => Fun(|a| Ok(Bool(a.iter().all(|a| !matches!(a, Nil | Bool(false))))), "Returns false if at least one of the arguments is 'false' or 'nil', true otherwise"),
+        "or"        => Fun(|a| Ok(Bool(a.iter().any(|a| !matches!(a, Nil | Bool(false))))), "Returns false if all the arguments are 'false' or 'nil', true otherwise"),
+        "xor"       => Fun(|a| Ok(Bool(a.iter().filter(|a| !matches!(a, Nil | Bool(false))).count() == 1)), "Returns true if one of the arguments is different from 'nil' or 'false', false otherwise"),
+        "not"       => Fun(|a| Ok(Bool(matches!(car(a)?, Nil | Bool(false)))), "Negate the first argument"),
         "="         => Fun(mal_comp, "Return true if the first two parameters are the same type and content, in case of lists propagate to all elements"),
-        "assert"    => Fun(mal_assert, "Panic if one of the arguments is false")
+        "assert"    => Fun(mal_assert, "Return an error if assertion fails")
     )
 }

src/main.rs

@@ -4,11 +4,11 @@ use std::env::args;
 mod core;
 mod env;
 mod eval;
+mod mal_tests;
 mod parse_tools;
 mod printer;
 mod reader;
 mod step4_if_fn_do;
-mod tests;
 mod types;
 
 use core::ns_init;

src/mal_tests/mod.rs

@@ -16,19 +16,32 @@ mod functional {
         ($file:expr) => {{
             use crate::core::ns_init;
             use crate::load_file;
-            let env = ns_init();
-            load_file!("core.mal", &env);
-            load_file!(format!("tests/{}.mal", $file).as_str(), &env);
+            load_file!(format!("tests/{}.mal", $file).as_str(), &ns_init());
         }};
     }
 
     #[test]
-    fn fibonacci() {
-        test!("fibonacci");
+    fn assert_fail() {
+        use crate::core::ns_init;
+        use crate::load_file;
+        assert!(matches!(
+            load_file("tests/assert_fail.mal", &ns_init()),
+            Err(_)
+        ))
+    }
+
+    #[test]
+    fn builtin_logic() {
+        test!("logic")
     }
 
     #[test]
     fn builtin_equals() {
         test!("equals");
     }
+
+    #[test]
+    fn fibonacci() {
+        test!("fibonacci");
+    }
 }

src/types.rs

@@ -94,11 +94,11 @@ pub fn mal_comp(args: &[MalType]) -> MalRet {
 }
 
 pub fn mal_assert(args: &[MalType]) -> MalRet {
-    args.iter().for_each(|i| match i {
-        M::Nil | M::Bool(false) => panic!(),
-        _ => (),
-    });
-    Ok(M::Nil)
+    if args.iter().any(|i| matches!(i, M::Nil | M::Bool(false))) {
+        Err(MalErr::unrecoverable("Assertion failed"))
+    } else {
+        Ok(M::Nil)
+    }
 }
 
 #[derive(PartialEq, Clone, Copy)]
@@ -184,3 +184,40 @@ pub fn unescape_str(s: &str) -> String {
         .replace("\\n", "\n")
         .replace("\\\"", "\"")
 }
+
+////////////////////////////////////////////////////////////////////////////////
+// Tests                                                                      //
+////////////////////////////////////////////////////////////////////////////////
+
+#[cfg(test)]
+mod tests {
+    use crate::types::mal_assert;
+    use crate::types::MalType as M;
+
+    #[test]
+    fn _mal_assert() {
+        assert!(matches!(mal_assert(&[M::Nil]), Err(_)));
+        assert!(matches!(mal_assert(&[M::Bool(false)]), Err(_)));
+        assert!(matches!(mal_assert(&[M::Bool(true)]), Ok(_)));
+        assert!(matches!(mal_assert(&[M::Int(1)]), Ok(_)));
+    }
+
+    #[test]
+    fn _escape_str() {
+        use crate::types::escape_str;
+        assert_eq!(escape_str(""), "\"\""); // add quotations
+        assert_eq!(escape_str("\\"), "\"\\\\\""); // escape "\"
+        assert_eq!(escape_str("\n"), "\"\\n\""); // escape "\n"
+        assert_eq!(escape_str("\""), "\"\\\"\""); // escape "\""
+    }
+
+    #[test]
+    fn _unescape_str() {
+        use crate::types::unescape_str;
+        assert_eq!(unescape_str("\"\""), ""); // remove quotations
+        assert_eq!(unescape_str("\"a\""), "a"); // remove quotations
+        assert_eq!(unescape_str("\"\\\\\""), "\\"); // unescape "\"
+        assert_eq!(unescape_str("\"\\n\""), "\n"); // unescape "\n"
+        assert_eq!(unescape_str("\"\\\"\""), "\""); // unescape "\""
+    }
+}

tests/assert_fail.mal

@@ -0,0 +1 @@
+(assert nil)

tests/logic.mal

@@ -0,0 +1,31 @@
+; positive assert
+(assert true)
+(assert ())
+(assert 1)
+
+; not
+(assert (not false))
+(assert (not nil))
+(assert (not (not true)))
+
+; or
+(assert (not (or false)))
+(assert (or 1))
+(assert (or 1 nil false))
+(assert (or 1 1 1))
+(assert (or nil 1 false))
+(assert (not (or nil false)))
+(assert (not (or false nil)))
+
+; and
+(assert (and 1))
+(assert (not (and nil)))
+(assert (and 1 1 1))
+(assert (not (and 1 nil false)))
+(assert (not (and nil false)))
+
+; xor
+(assert (not (xor nil false nil)))
+(assert (xor nil 1 nil false nil))
+(assert (not (xor nil 1 false 1)))
+(assert (not (xor 1 nil 1 1)))