Test temp file used with an editor has the expected suffix.

  $ hg init

Create an editor that writes its arguments to stdout and set it to $HGEDITOR.

  $ cat > editor.sh << EOF

  > echo "\$@"

  > exit 1

  > EOF

  $ hg add editor.sh

  $ export HGEDITOR

Verify that the path for a commit editor has the expected suffix.

  $ hg commit

  *.commit.hg.txt (glob)

  [255]

Verify that the path for a histedit editor has the expected suffix.

  $ cat >> $HGRCPATH <<EOF

  > [extensions]

  > rebase=

  > histedit=

  > EOF

  $ hg commit --message 'At least one commit for histedit.'

  $ hg histedit

  *.histedit.hg.txt (glob)

  [255]

Verify that when performing an action that has the side-effect of creating an

editor for a diff, the file ends in .diff.

  $ echo 1 > one

  $ echo 2 > two

  $ hg add

  adding one

  adding two

  $ hg commit --interactive --config ui.interactive=true --config ui.interface=text << EOF

  > y

  > e

  > q

  > EOF

  diff --git a/one b/one

  new file mode 100644

  examine changes to 'one'? [Ynesfdaq?] y

  @@ -0,0 +1,1 @@

  +1

  record change 1/2 to 'one'? [Ynesfdaq?] e

  *.diff (glob)

  editor exited with exit code 1

  record change 1/2 to 'one'? [Ynesfdaq?] q

  abort: user quit

  [255]