diff --git a/Makefile b/Makefile
index df563b77..3a9a2855 100644
--- a/Makefile
+++ b/Makefile
@@ -200,6 +200,9 @@ test-build:
 test-ffi: chibi-scheme$(EXE)
 	$(CHIBI) tests/ffi/ffi-tests.scm
 
+test-snow: chibi-scheme$(EXE)
+	$(CHIBI) tests/snow/snow-tests.scm
+
 test-numbers: chibi-scheme$(EXE)
 	$(CHIBI) -xchibi tests/numeric-tests.scm
 
diff --git a/tests/snow/repo0/edouard/lucas.sld b/tests/snow/repo0/edouard/lucas.sld
new file mode 100644
index 00000000..425f6920
--- /dev/null
+++ b/tests/snow/repo0/edouard/lucas.sld
@@ -0,0 +1,8 @@
+(define-library (edouard lucas)
+  (export lucas)
+  (import (scheme base))
+  (begin
+    (define (lucas n)
+      (if (< n 2)
+          (if (= n 1) 1 2)
+          (+ (lucas (- n 1)) (lucas (- n 2)))))))
diff --git a/tests/snow/repo1/leonardo/fibonacci-test.scm b/tests/snow/repo1/leonardo/fibonacci-test.scm
new file mode 100644
index 00000000..31537274
--- /dev/null
+++ b/tests/snow/repo1/leonardo/fibonacci-test.scm
@@ -0,0 +1,14 @@
+(import (scheme base) (chibi test) (leonardo fibonacci))
+
+(test-begin "fibonacci")
+
+(test 1 (fib 0))
+(test 1 (fib 1))
+(test 2 (fib 2))
+(test 3 (fib 3))
+(test 5 (fib 4))
+(test 8 (fib 5))
+(test 13 (fib 6))
+
+(test-end)
+(test-exit)
diff --git a/tests/snow/repo1/leonardo/fibonacci.scm b/tests/snow/repo1/leonardo/fibonacci.scm
new file mode 100644
index 00000000..271de0e6
--- /dev/null
+++ b/tests/snow/repo1/leonardo/fibonacci.scm
@@ -0,0 +1,4 @@
+(define (fib n)
+  (if (< n 2)
+      1
+      (+ (fib (- n 1)) (fib (- n 2)))))
diff --git a/tests/snow/repo1/leonardo/fibonacci.sld b/tests/snow/repo1/leonardo/fibonacci.sld
new file mode 100644
index 00000000..d15fc117
--- /dev/null
+++ b/tests/snow/repo1/leonardo/fibonacci.sld
@@ -0,0 +1,4 @@
+(define-library (leonardo fibonacci)
+  (export fib)
+  (import (scheme base))
+  (include "fibonacci.scm"))
diff --git a/tests/snow/repo2/leonardo/fibonacci-test.scm b/tests/snow/repo2/leonardo/fibonacci-test.scm
new file mode 100644
index 00000000..31537274
--- /dev/null
+++ b/tests/snow/repo2/leonardo/fibonacci-test.scm
@@ -0,0 +1,14 @@
+(import (scheme base) (chibi test) (leonardo fibonacci))
+
+(test-begin "fibonacci")
+
+(test 1 (fib 0))
+(test 1 (fib 1))
+(test 2 (fib 2))
+(test 3 (fib 3))
+(test 5 (fib 4))
+(test 8 (fib 5))
+(test 13 (fib 6))
+
+(test-end)
+(test-exit)
diff --git a/tests/snow/repo2/leonardo/fibonacci.scm b/tests/snow/repo2/leonardo/fibonacci.scm
new file mode 100644
index 00000000..912fb8b9
--- /dev/null
+++ b/tests/snow/repo2/leonardo/fibonacci.scm
@@ -0,0 +1,5 @@
+(define (fib n)
+  (let lp ((n n) (a 1) (b 1))
+    (if (< n 2)
+        a
+        (lp (- n 1) (+ a b) a))))
diff --git a/tests/snow/repo2/leonardo/fibonacci.sld b/tests/snow/repo2/leonardo/fibonacci.sld
new file mode 100644
index 00000000..d15fc117
--- /dev/null
+++ b/tests/snow/repo2/leonardo/fibonacci.sld
@@ -0,0 +1,4 @@
+(define-library (leonardo fibonacci)
+  (export fib)
+  (import (scheme base))
+  (include "fibonacci.scm"))
diff --git a/tests/snow/repo3/pingala/binomial-impl.scm b/tests/snow/repo3/pingala/binomial-impl.scm
new file mode 100644
index 00000000..cbb37a56
--- /dev/null
+++ b/tests/snow/repo3/pingala/binomial-impl.scm
@@ -0,0 +1,4 @@
+(define (binomial n k)
+  (/ (factorial n)
+     (* (factorial k)
+        (factorial (- n k)))))
diff --git a/tests/snow/repo3/pingala/binomial-test.scm b/tests/snow/repo3/pingala/binomial-test.scm
new file mode 100644
index 00000000..95bfdcd1
--- /dev/null
+++ b/tests/snow/repo3/pingala/binomial-test.scm
@@ -0,0 +1,10 @@
+(import (scheme base) (pingala binomial) (pingala test-map))
+
+(test-map (1 4 6 4 1)
+          (lambda (k) (binomial 4 k))
+          (0 1 2 3 4))
+(test-map (1 5 10 10 5 1)
+          (lambda (k) (binomial 5 k))
+          (0 1 2 3 4 5))
+
+(test-exit)
diff --git a/tests/snow/repo3/pingala/binomial.scm b/tests/snow/repo3/pingala/binomial.scm
new file mode 100644
index 00000000..54b7f3f7
--- /dev/null
+++ b/tests/snow/repo3/pingala/binomial.scm
@@ -0,0 +1,4 @@
+(define-library (pingala binomial)
+  (export binomial)
+  (import (scheme base) (pingala factorial))
+  (include "binomial-impl.scm"))
diff --git a/tests/snow/repo3/pingala/factorial.scm b/tests/snow/repo3/pingala/factorial.scm
new file mode 100644
index 00000000..8d61fd68
--- /dev/null
+++ b/tests/snow/repo3/pingala/factorial.scm
@@ -0,0 +1,7 @@
+(define-library (pingala factorial)
+  (export factorial)
+  (import (scheme base))
+  (begin
+    (define (factorial n)
+      (let lp ((n n) (res 1))
+        (if (<= n 1) res (lp (- n 1) (* res n)))))))
diff --git a/tests/snow/repo3/pingala/test-map.scm b/tests/snow/repo3/pingala/test-map.scm
new file mode 100644
index 00000000..e45c21b8
--- /dev/null
+++ b/tests/snow/repo3/pingala/test-map.scm
@@ -0,0 +1,18 @@
+(define-library (pingala test-map)
+  (export test-map test-exit)
+  (import (scheme base) (scheme process-context))
+  (begin
+    (define failed? #f)
+    (define (test-exit) (exit (if failed? 1 0)))
+    (define-syntax test-map
+      (syntax-rules ()
+        ((test-map expected proc values)
+         (let ((res (map proc 'values)))
+           (cond
+            ((not (equal? res 'expected))
+             (set! failed? #t)
+             (display "FAIL: expected ")
+             (write 'expected)
+             (display " but got ")
+             (write res)
+             (newline)))))))))
diff --git a/tests/snow/snow-tests.scm b/tests/snow/snow-tests.scm
new file mode 100644
index 00000000..5e03a952
--- /dev/null
+++ b/tests/snow/snow-tests.scm
@@ -0,0 +1,136 @@
+(import (scheme base) (scheme write) (scheme process-context) (srfi 1)
+        (chibi ast) (chibi filesystem) (chibi match) (chibi pathname)
+        (chibi process) (chibi string) (chibi test))
+
+(test-begin "snow")
+
+;; setup a temp root to install packages
+(define install-prefix "tests/snow/tmp-root")
+(define install-libdir (make-path install-prefix "/share/snow/chibi"))
+(if (file-exists? install-prefix)
+    (delete-file-hierarchy install-prefix))
+(create-directory install-prefix)
+
+;; ignore any personal config settings
+(setenv "SNOW_CHIBI_CONFIG" "no-such-file")
+
+;; run snow-chibi command as a separate process with test defaults
+(define chibi-path "./chibi-scheme")
+(define (snow-command . args)
+  `(,chibi-path "tools/snow-chibi"
+                --always-no
+                --implementations "chibi"
+                --chibi-path ,(string-append chibi-path " -A " install-libdir)
+                --install-prefix ,install-prefix
+                --local-user-repository "tests/snow/repo-cache"
+                ,@args))
+
+(define-syntax snow
+  (syntax-rules ()
+    ((snow args ...)
+     (match (process->output+error+status (apply snow-command `(args ...)))
+       ((output error (? zero?))
+        ;;(display output)
+        ;;(display error)
+        )
+       ((output error status)
+        (display "Snow failed:\n")
+        (display output)
+        (display error)
+        (newline))
+       (other
+        (display "Snow error:\n")
+        (display other)
+        (newline))))))
+
+(define-syntax snow->string
+  (syntax-rules ()
+    ((snow->string args ...)
+     (process->string (apply snow-command `(args ...))))))
+
+(define-syntax snow->sexp
+  (syntax-rules ()
+    ((snow->sexp args ...)
+     (process->sexp (apply snow-command `(--sexp args ...))))))
+
+(define (snow-status)
+  (snow->sexp status))
+
+(define (installed-status status lib-name . o)
+  (let* ((impl (if (pair? o) (car o) 'chibi))
+         (impl-status (assq impl status)))
+    (and impl-status
+         (assoc lib-name (cdr impl-status)))))
+
+(define (installed-version status lib-name . o)
+  (cond ((apply installed-status status lib-name o) => cadr)
+        (else #f)))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; basics
+
+;; package
+(snow package --output-dir tests/snow --authors "Édouard Lucas"
+      --description "Lucas recurrence relation"
+      tests/snow/repo0/edouard/lucas.sld)
+(test-assert (file-exists? "tests/snow/edouard-lucas.tgz"))
+
+;; install
+(snow install tests/snow/edouard-lucas.tgz)
+(define lucas-sld-path
+  (make-path install-libdir "edouard/lucas.sld"))
+(test-assert (file-exists? lucas-sld-path))
+(delete-file "tests/snow/edouard-lucas.tgz")
+
+;; status
+(test-assert (installed-status (snow-status) '(edouard lucas)))
+
+;; remove
+(snow remove edouard.lucas)
+(test-not (file-exists? lucas-sld-path))
+(test-not (installed-version (snow-status) '(edouard lucas)))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; install/upgrade via local repos
+
+(define repo1 '(--repository-uri tests/snow/repo1/repo.scm))
+(snow package --output-dir tests/snow/repo1/
+      --version 1.0 --authors "Leonardo Fibonacci"
+      --description "Fibonacci recurrence relation"
+      tests/snow/repo1/leonardo/fibonacci.sld)
+(snow index ,(cadr repo1) tests/snow/repo1/leonardo-fibonacci-1.0.tgz)
+(snow ,@repo1 update)
+(snow ,@repo1 install --show-tests leonardo.fibonacci)
+(test "1.0" (installed-version (snow-status) '(leonardo fibonacci)))
+
+(define repo2 '(--repository-uri tests/snow/repo2/repo.scm))
+(snow package --output-dir tests/snow/repo2/
+      --version 1.1 --authors "Leonardo Fibonacci"
+      --description "Fibonacci recurrence relation"
+      tests/snow/repo2/leonardo/fibonacci.sld)
+(snow index ,(cadr repo2))
+(snow ,@repo2 update)
+(snow ,@repo2 upgrade leonardo.fibonacci)
+(test "1.1" (installed-version (snow-status) '(leonardo fibonacci)))
+
+(define repo3 '(--repository-uri tests/snow/repo3/repo.scm))
+(snow package --output-dir tests/snow/repo3/
+      --version 1.0 --authors "Pingala"
+      --description "Factorial"
+      tests/snow/repo3/pingala/factorial.scm)
+(snow package --output-dir tests/snow/repo3/
+      --version 1.0 --authors "Pingala"
+      --description "Binomial Coefficients"
+      tests/snow/repo3/pingala/binomial.scm)
+(snow package --output-dir tests/snow/repo3/
+      --version 1.0 --authors "Pingala"
+      --description "Pingala's test framework"
+      tests/snow/repo3/pingala/test-map.scm)
+(snow index ,(cadr repo3))
+(snow ,@repo3 update)
+(snow ,@repo3 install pingala.binomial)
+(let ((status (snow-status)))
+  (test-assert (installed-version status '(pingala binomial)))
+  (test-assert (installed-version status '(pingala factorial))))
+
+(test-end)