diff --git a/.gitignore b/.gitignore
index ef2d36a..e64586e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,6 @@
 /target
-*.scm~
\ No newline at end of file
+
+# dr racket
+*.scm~
+*.scm#*
+.#*.scm
\ No newline at end of file
diff --git a/src/snapshots/handball__tests__run-pass@fib.scm.snap b/src/snapshots/handball__tests__run-pass@fib.scm.snap
new file mode 100644
index 0000000..67d67d6
--- /dev/null
+++ b/src/snapshots/handball__tests__run-pass@fib.scm.snap
@@ -0,0 +1,40 @@
+---
+source: src/tests.rs
+assertion_line: 45
+expression: run-pass fib.scm
+
+---
+10.0
+89.0
+
+9.0
+55.0
+
+8.0
+34.0
+
+7.0
+21.0
+
+6.0
+13.0
+
+5.0
+8.0
+
+4.0
+5.0
+
+3.0
+3.0
+
+2.0
+2.0
+
+1.0
+1.0
+
+0.0
+1.0
+
+
diff --git a/src/snapshots/handball__tests__run-pass@multi.scm.snap b/src/snapshots/handball__tests__run-pass@multi.scm.snap
new file mode 100644
index 0000000..a2907e7
--- /dev/null
+++ b/src/snapshots/handball__tests__run-pass@multi.scm.snap
@@ -0,0 +1,7 @@
+---
+source: src/tests.rs
+assertion_line: 45
+expression: run-pass multi.scm
+
+---
+3.0
diff --git a/src/snapshots/handball__tests__run-pass@nested-defs.scm.snap b/src/snapshots/handball__tests__run-pass@nested-defs.scm.snap
new file mode 100644
index 0000000..a7ce42a
--- /dev/null
+++ b/src/snapshots/handball__tests__run-pass@nested-defs.scm.snap
@@ -0,0 +1,7 @@
+---
+source: src/tests.rs
+assertion_line: 41
+expression: run-pass nested-defs.scm
+
+---
+1.4142156862745097
diff --git a/src/snapshots/handball__tests__run-pass@sqrt.scm.snap b/src/snapshots/handball__tests__run-pass@sqrt.scm.snap
new file mode 100644
index 0000000..4e0e122
--- /dev/null
+++ b/src/snapshots/handball__tests__run-pass@sqrt.scm.snap
@@ -0,0 +1,7 @@
+---
+source: src/tests.rs
+assertion_line: 41
+expression: run-pass sqrt.scm
+
+---
+1.4142156862745097
diff --git a/src/test/run-pass/fib.scm b/src/test/run-pass/fib.scm
new file mode 100644
index 0000000..92cbcab
--- /dev/null
+++ b/src/test/run-pass/fib.scm
@@ -0,0 +1,21 @@
+#lang scheme
+
+(define (displayln x) (display x) (newline))
+
+(define (my-or a b) (if a #t b)) ; Test was written before we had `or`
+
+
+(define (fib-base? n) (my-or (= n 1) (= n 0)))
+
+(define (fib n)
+  (if (fib-base? n) 1
+      (+ (fib (- n 1)) (fib (- n 2)))))
+      
+
+(define (pfib n) (displayln n) (displayln (fib n)) (newline))
+
+(define (pfibs n)
+  (if (= n (- 1)) 0 ; Hack
+      ((lambda () (pfib n) (pfibs (- n 1)))))) ; Hack
+
+(pfibs 10)
\ No newline at end of file
diff --git a/src/test/run-pass/multi.scm b/src/test/run-pass/multi.scm
new file mode 100644
index 0000000..6df5bff
--- /dev/null
+++ b/src/test/run-pass/multi.scm
@@ -0,0 +1,5 @@
+#lang scheme
+
+(define (multi) 1 2 3)
+
+(display (multi))
\ No newline at end of file
diff --git a/src/test/run-pass/nested-defs.scm b/src/test/run-pass/nested-defs.scm
new file mode 100644
index 0000000..6d4265a
--- /dev/null
+++ b/src/test/run-pass/nested-defs.scm
@@ -0,0 +1,20 @@
+#lang scheme
+
+; We dont have closures at the time of writing, but each func gets its own env
+; http://sarabander.github.io/sicp/html/1_002e1.xhtml#g_t1_002e1_002e7
+
+(define (sqrt x)
+  (define (sqrt-iter guess x)
+    (define (good-enough? guess x)
+      (define (square x) (* x x))
+      (< (abs (- (square guess) x)) 0.001))
+    (define (improve guess x)
+      (define (average x y) 
+        (/ (+ x y) 2))
+      (average guess (/ x guess)))
+    (if (good-enough? guess x)
+        guess
+        (sqrt-iter (improve guess x) x)))
+  (sqrt-iter 1.0 x))
+
+(display (sqrt 2))
\ No newline at end of file
diff --git a/src/test/run-pass/sqrt.scm b/src/test/run-pass/sqrt.scm
new file mode 100644
index 0000000..051ac15
--- /dev/null
+++ b/src/test/run-pass/sqrt.scm
@@ -0,0 +1,25 @@
+#lang scheme
+
+; We dont have closures at the time of writing, but each func gets its own env
+; http://sarabander.github.io/sicp/html/1_002e1.xhtml#g_t1_002e1_002e7
+
+(define (sqrt-iter guess x)
+  (if (good-enough? guess x)
+      guess
+      (sqrt-iter (improve guess x) x)))
+
+(define (improve guess x)
+  (average guess (/ x guess)))
+
+(define (average x y) 
+  (/ (+ x y) 2))
+
+(define (square x) (* x x))
+
+(define (good-enough? guess x)
+  (< (abs (- (square guess) x)) 0.001))
+
+(define (sqrt x)
+  (sqrt-iter 1.0 x))
+
+(display (sqrt 2))
\ No newline at end of file
diff --git a/src/tests.rs b/src/tests.rs
index f261f4c..7aecb78 100644
--- a/src/tests.rs
+++ b/src/tests.rs
@@ -33,10 +33,6 @@ fn run_pass() {
             .assert()
             .success();
 
-        dbg!(&p, p.components().collect::<Vec<_>>());
-
-        dbg!(&p, manifest_dir);
-
         let p = p.strip_prefix(manifest_dir).unwrap();
         let p = p.strip_prefix("src/test/run-pass").unwrap();
         let p = p.to_str().unwrap();