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test/LSP: dump logs on error

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This will help debug CI flakey failures.

TODO: helpers.assert_log()  -- Explicitly check contents of the logfile.
This commit is contained in:
Justin M. Keyes
2020-02-08 18:08:02 -08:00
parent 1eb0f5371a
commit 4cf48dc329
2 changed files with 54 additions and 39 deletions
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14
test/helpers.lua
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@@ -58,6 +58,14 @@ local check_logs_useless_lines = {
function module.eq(expected, actual, context)
return assert.are.same(expected, actual, context)
end
-- Like eq(), but includes tail of `logfile` in failure message.
function module.eq_dumplog(logfile, expected, actual, context)
local status, rv = pcall(module.eq, expected, actual, context)
if not status then
local logtail = module.read_nvim_log(logfile)
error(string.format('%s\n%s', rv, logtail))
end
end
function module.neq(expected, actual, context)
return assert.are_not.same(expected, actual, context)
end
@@ -737,10 +745,10 @@ function module.isCI(name)
end
-- Gets the contents of $NVIM_LOG_FILE for printing to the build log.
-- Gets the contents of `logfile` for printing to the build log.
-- Also moves the file to "${NVIM_LOG_FILE}.displayed" on CI environments.
function module.read_nvim_log()
local logfile = os.getenv('NVIM_LOG_FILE') or '.nvimlog'
function module.read_nvim_log(logfile)
logfile = logfile or os.getenv('NVIM_LOG_FILE') or '.nvimlog'
local is_ci = module.isCI()
local keep = is_ci and 999 or 10
local lines = module.read_file_list(logfile, -keep) or {}