centralized ensure dir

diff.ce

@@ -8,6 +8,7 @@ var shop = use('internal/shop')
 var pkg = use('package')
 var fd = use('fd')
 var time = use('time')
+var testlib = use('internal/testlib')
 
 var _args = args == null ? [] : args
 
@@ -27,10 +28,7 @@ if (length(_args) > 0) {
   target_test = _args[0]
 }
 
-function is_valid_package(dir) {
-  var _dir = dir == null ? '.' : dir
-  return fd.is_file(_dir + '/cell.toml')
-}
+var is_valid_package = testlib.is_valid_package
 
 if (!is_valid_package('.')) {
   log.console('No cell.toml found in current directory')
@@ -63,47 +61,8 @@ function collect_tests(specific_test) {
   return test_files
 }
 
-// Deep comparison of two values
-function values_equal(a, b) {
-  var i = 0
-  var ka = null
-  var kb = null
-  if (a == b) return true
-  if (is_null(a) && is_null(b)) return true
-  if (is_null(a) || is_null(b)) return false
-  if (is_array(a) && is_array(b)) {
-    if (length(a) != length(b)) return false
-    i = 0
-    while (i < length(a)) {
-      if (!values_equal(a[i], b[i])) return false
-      i = i + 1
-    }
-    return true
-  }
-  if (is_object(a) && is_object(b)) {
-    ka = array(a)
-    kb = array(b)
-    if (length(ka) != length(kb)) return false
-    i = 0
-    while (i < length(ka)) {
-      if (!values_equal(a[ka[i]], b[ka[i]])) return false
-      i = i + 1
-    }
-    return true
-  }
-  return false
-}
-
-function describe(val) {
-  if (is_null(val)) return "null"
-  if (is_text(val)) return `"${val}"`
-  if (is_number(val)) return text(val)
-  if (is_logical(val)) return text(val)
-  if (is_function(val)) return "<function>"
-  if (is_array(val)) return `[array length=${text(length(val))}]`
-  if (is_object(val)) return `{record keys=${text(length(array(val)))}}`
-  return "<unknown>"
-}
+var values_equal = testlib.values_equal
+var describe = testlib.describe
 
 // Run a single test file through both paths
 function diff_test_file(file_path) {