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Michael Herstine authored
* lisp/emacs-lisp/ert.el (ert-batch-print-length) (ert-batch-print-level,.ert-batch-backtrace-line-length) (ert-batch-test, ert-run-tests-interactively): Added the three variables, bound them to these settings when formatting batch test results including backtraces. Removed the optional parameters output-buffer & message-fn from ert-run-tests-interactively. * test/lisp/emacs-lisp/ert-tests.el (ert-test-run-tests-interactively, ert-test-run-tests-batch): use cl-letf to capture output, new tests resp. * test/lisp/ert-x-tests.el (ert-test-run-tests-interactively-2): Changed to use cl-letf to capture output instead of using message-fn. * lisp/emacs-lisp/backtrace.el (backtrace--line-length-or-nil) (backtrace--print-func-and-args): Fixed a bug when setting backtrace-line-length to nil by adding a new function to check for that case & having backtrace--print-func-and-args use it. * doc/misc/ert.texi: document the new variables & their usage (bug#51037).
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