Add a lot of primitive types

3 files changed, 13 insertions, 11 deletions

diff --git a/tests/booleans_expected.txt b/tests/booleans_expected.txt
index f47d32f..43f67e5 100644
--- a/tests/booleans_expected.txt
+++ b/tests/booleans_expected.txt
@@ -33,11 +33,11 @@
 (if (or false false) (+ 1 2 3) (+ 7 8 9)) -> 24
 (if (or (+ 1 2 3) false) (+ 1 2 3) (+ 7 8 9)) -> 6
 (if true 7) -> 7
-(if false 7) -> ()
+(if false 7) -> 
 (cond ((and true true true) 1) ((or true true false) 2) (else 3)) -> 1
 (cond ((and true true false) 1) ((or true true false) 2) (else 3)) -> 2
 (cond ((and true true false) 1) ((or false false false) 2) (else 3)) -> 3
-(cond ((and true true true) 1) ((or true true false) 2)) -> ()
+(cond ((and true true true) 1) ((or true true false) 2)) -> 
 (cond ((and true true true) (+ 1 2 3)) ((or true true false) 2) (else 3)) -> 6
 (< 1 2 3) -> true
 (< 3 2 1) -> false
diff --git a/tests/lists_expected.txt b/tests/lists_expected.txt
index 9030886..6ddb71b 100644
--- a/tests/lists_expected.txt
+++ b/tests/lists_expected.txt
@@ -1,4 +1,4 @@
-(list) -> ()
+(list) -> 
 (list 1) -> (1)
 (list 1 2) -> (1 2)
 (list 1 2 3) -> (1 2 3)
diff --git a/tests/types_expected.txt b/tests/types_expected.txt
index 3a5a2de..58eaa7f 100644
--- a/tests/types_expected.txt
+++ b/tests/types_expected.txt
@@ -5,14 +5,14 @@
 (boolean? "string") -> false
 (boolean? (+ 1 2 3)) -> false
 (boolean? (not 1)) -> true
-(null? true) -> false
-(null? false) -> false
-(null? 1) -> false
-(null? 5) -> false
-(null? "string") -> false
-(null? (+ 1 2 3)) -> false
-(null? (not 1)) -> false
-(null? ()) -> true
+(nil? true) -> false
+(nil? false) -> false
+(nil? 1) -> false
+(nil? 5) -> false
+(nil? "string") -> false
+(nil? (+ 1 2 3)) -> false
+(nil? (not 1)) -> false
+(nil? ()) -> true
 (string? true) -> false
 (string? false) -> false
 (string? 1) -> false
@@ -34,6 +34,8 @@
 (symbol? "string") -> false
 (symbol? (+ 1 2 3)) -> false
 (symbol? (not 1)) -> false
+(symbol? 'a) -> true
+(symbol? 'c) -> true
 (pair? false) -> false
 (pair? 1) -> false
 (pair? 5) -> false