diff options
| -rw-r--r-- | test/README.md | 3 | ||||
| -rw-r--r-- | test/unit/helpers.lua | 9 |
2 files changed, 11 insertions, 1 deletions
diff --git a/test/README.md b/test/README.md index 01db5960cd..15041b74e8 100644 --- a/test/README.md +++ b/test/README.md @@ -110,3 +110,6 @@ disables tracing (the fastest, but you get no data if tests crash and there was no core dump generated), `1` or empty/undefined leaves only C function cals and returns in the trace (faster then recording everything), `2` records all function calls, returns and lua source lines exuecuted. + +`NVIM_TEST_TRACE_ON_ERROR` (U) (1): makes unit tests yield trace on error in +addition to regular error message. diff --git a/test/unit/helpers.lua b/test/unit/helpers.lua index 4b9f185156..a629fca9a2 100644 --- a/test/unit/helpers.lua +++ b/test/unit/helpers.lua @@ -698,7 +698,14 @@ local function check_child_err(rd) local len_s = sc.read(rd, 5) local len = tonumber(len_s) neq(0, len) - local err = sc.read(rd, len + 1) + local err = '' + if os.getenv('NVIM_TEST_TRACE_ON_ERROR') == '1' and #trace ~= 0 then + err = '\nTest failed, trace:\n' .. tracehelp + for _, traceline in ipairs(trace) do + err = err .. traceline + end + end + err = err .. sc.read(rd, len + 1) assert.just_fail(err) end |