tests: Add a comment. No functional change.

2016-01-01 16:35:00 +00:00 · 2016-01-01 16:35:00 +00:00 · 268656d52b
commit 268656d52b
parent 38c3ac8831
1 changed files with 2 additions and 0 deletions
--- a/tests/test-highlighting.zsh
+++ b/tests/test-highlighting.zsh
@ -121,6 +121,8 @@ run_test() {
  typeset -r __tests_tempdir # don't allow tests to override the variable that we will 'rm -rf' later on

  {
+    # Use a subshell to isolate tests from each other.
+    # (So tests can alter global shell state using 'cd', 'hash', etc)
    (run_test_internal "$__tests_tempdir" "$@")
  } always {
    rm -rf -- "$__tests_tempdir"