1 files changed, 17 insertions, 0 deletions
diff --git a/test/helpers.lua b/test/helpers.lua
index 91ceed4df1..e0645d083f 100644
--- a/test/helpers.lua
+++ b/test/helpers.lua
@@ -16,6 +16,19 @@ end
 local function ok(res)
   return assert.is_true(res)
 end
+local function matches(pat, actual)
+  if nil ~= string.match(actual, pat) then
+    return true
+  end
+  error(string.format('Pattern does not match.\nPattern:\n%s\nActual:\n%s', pat, actual))
+end
+-- Expect an error matching pattern `pat`.
+local function expect_err(pat, ...)
+  local fn = select(1, ...)
+  local fn_args = {...}
+  table.remove(fn_args, 1)
+  assert.error_matches(function() return fn(unpack(fn_args)) end, pat)
+end
 
 -- initial_path:  directory to recurse into
 -- re:            include pattern (string)
@@ -469,6 +482,8 @@ format_luav = function(v, indent, opts)
     end
   elseif type(v) == 'nil' then
     ret = 'nil'
+  elseif type(v) == 'boolean' then
+    ret = (v and 'true' or 'false')
   else
     print(type(v))
     -- Not implemented yet
@@ -561,6 +576,7 @@ return {
   deepcopy = deepcopy,
   dictdiff = dictdiff,
   eq = eq,
+  expect_err = expect_err,
   filter = filter,
   fixtbl = fixtbl,
   fixtbl_rec = fixtbl_rec,
@@ -570,6 +586,7 @@ return {
   hasenv = hasenv,
   intchar2lua = intchar2lua,
   map = map,
+  matches = matches,
   mergedicts_copy = mergedicts_copy,
   neq = neq,
   ok = ok,