Quoth Mark Walters on Apr 24 at  3:38 pm:
> 
> On Mon, 21 Apr 2014, Austin Clements <amdragon at MIT.EDU> wrote:
> > The test of viewing 8bit messages is known-broken.  The rest pass, but
> > for very fragile reasons.  The next several commits will fix the
> > known-broken test and make our charset handling robust.
> 
> Hi 
> 
> On one of my systems one of these (non-broken) tests fails. I am not
> sure whether I messed up my emacs/environment when doing stuff remotely
> recently so it could just be my system
> 
> 
> > ---
> >  test/T455-emacs-charsets.sh | 141 
> > ++++++++++++++++++++++++++++++++++++++++++++
> >  test/test-lib.el            |   4 +-
> >  2 files changed, 144 insertions(+), 1 deletion(-)
> >  create mode 100755 test/T455-emacs-charsets.sh
> >
> > diff --git a/test/T455-emacs-charsets.sh b/test/T455-emacs-charsets.sh
> > new file mode 100755
> > index 0000000..a42a1d2
> > --- /dev/null
> > +++ b/test/T455-emacs-charsets.sh
> > @@ -0,0 +1,141 @@
> > +#!/usr/bin/env bash
> > +
> > +test_description="emacs notmuch-show charset handling"
> > +. ./test-lib.sh
> > +
> > +
> > +UTF8_YEN=$'\xef\xbf\xa5'
> > +BIG5_YEN=$'\xa2\x44'
> > +
> > +# Add four messages with unusual encoding requirements:
> > +#
> > +# 1) text/plain in quoted-printable big5
> > +generate_message \
> > +    [id]=test-plain at example.com \
> > +    '[content-type]="text/plain; charset=big5"' \
> > +    '[content-transfer-encoding]=quoted-printable' \
> > +    '[body]="Yen: =A2=44"'
> > +
> > +# 2) text/plain in 8bit big5
> > +generate_message \
> > +    [id]=test-plain-8bit at example.com \
> > +    '[content-type]="text/plain; charset=big5"' \
> > +    '[content-transfer-encoding]=8bit' \
> > +    '[body]="Yen: '$BIG5_YEN'"'
> > +
> > +# 3) text/html in quoted-printable big5
> > +generate_message \
> > +    [id]=test-html at example.com \
> > +    '[content-type]="text/html; charset=big5"' \
> > +    '[content-transfer-encoding]=quoted-printable' \
> > +    '[body]="<html><body>Yen: =A2=44</body></html>"'
> > +
> > +# 4) application/octet-stream in quoted-printable of big5 text
> > +generate_message \
> > +    [id]=test-binary at example.com \
> > +    '[content-type]="application/octet-stream"' \
> > +    '[content-transfer-encoding]=quoted-printable' \
> > +    '[body]="Yen: =A2=44"'
> > +
> > +notmuch new > /dev/null
> > +
> > +# Test rendering
> > +
> > +test_begin_subtest "Text parts are decoded when rendering"
> > +test_emacs '(notmuch-show "id:test-plain at example.com")
> > +       (test-visible-output "OUTPUT.raw")'
> > +awk 'show {print} /^$/ {show=1}' < OUTPUT.raw > OUTPUT
> > +cat <<EOF >EXPECTED
> > +Yen: $UTF8_YEN
> > +EOF
> > +test_expect_equal_file OUTPUT EXPECTED
> > +
> > +test_begin_subtest "8bit text parts are decoded when rendering"
> > +test_emacs '(notmuch-show "id:test-plain-8bit at example.com")
> > +       (test-visible-output "OUTPUT.raw")'
> > +awk 'show {print} /^$/ {show=1}' < OUTPUT.raw > OUTPUT
> > +cat <<EOF >EXPECTED
> > +Yen: $UTF8_YEN
> > +EOF
> > +test_expect_equal_file OUTPUT EXPECTED
> > +
> > +test_begin_subtest "HTML parts are decoded when rendering"
> > +test_emacs '(notmuch-show "id:test-html at example.com")
> > +       (test-visible-output "OUTPUT.raw")'
> > +awk 'show {print} /^$/ {show=1}' < OUTPUT.raw > OUTPUT
> > +cat <<EOF >EXPECTED
> > +[ text/html ]
> > +Yen: $UTF8_YEN
> > +EOF
> > +test_expect_equal_file OUTPUT EXPECTED
> 
> It's this test: I get an extra newline after the UFT8_YEN. 
> 
> This is with emacs 23.4.1 on a Debian wheezy(ish) system.
> 
> But as said it could be my fault: I think some odd things happened when
> I tried to install emacs 24 and 23 simultaneously to help testing
> things.

I can reproduce this.  Tests that involve HTML rendering are always
finicky like this since there are so many different HTML renderers.
Maybe I could normalize the spacing?  sed '/^$/d;s/  */ /g' or so?

> Best wishes
> 
> Mark
> 
> 
> > +
> > +# Test saving
> > +
> > +test_begin_subtest "Text parts are not decoded when saving"
> > +rm -f part
> > +test_emacs '(notmuch-show "id:test-plain at example.com")
> > +       (search-forward "Yen")
> > +       (let ((standard-input "\"part\""))
> > +          (notmuch-show-save-part))'
> > +cat <<EOF >EXPECTED
> > +Yen: $BIG5_YEN
> > +EOF
> > +test_expect_equal_file part EXPECTED
> > +
> > +test_begin_subtest "8bit text parts are not decoded when saving"
> > +rm -f part
> > +test_emacs '(notmuch-show "id:test-plain-8bit at example.com")
> > +       (search-forward "Yen")
> > +       (let ((standard-input "\"part\""))
> > +          (notmuch-show-save-part))'
> > +cat <<EOF >EXPECTED
> > +Yen: $BIG5_YEN
> > +EOF
> > +test_expect_equal_file part EXPECTED
> > +
> > +test_begin_subtest "HTML parts are not decoded when saving"
> > +rm -f part
> > +test_emacs '(notmuch-show "id:test-html at example.com")
> > +       (search-forward "Yen")
> > +       (let ((standard-input "\"part\""))
> > +          (notmuch-show-save-part))'
> > +cat <<EOF >EXPECTED
> > +<html><body>Yen: $BIG5_YEN</body></html>
> > +EOF
> > +test_expect_equal_file part EXPECTED
> > +
> > +test_begin_subtest "Binary parts are not decoded when saving"
> > +rm -f part
> > +test_emacs '(notmuch-show "id:test-binary at example.com")
> > +       (search-forward "application/")
> > +       (let ((standard-input "\"part\""))
> > +          (notmuch-show-save-part))'
> > +cat <<EOF >EXPECTED
> > +Yen: $BIG5_YEN
> > +EOF
> > +test_expect_equal_file part EXPECTED
> > +
> > +# Test message viewing
> > +
> > +test_begin_subtest "Text message are not decoded when viewing"
> > +test_emacs '(notmuch-show "id:test-plain at example.com")
> > +       (notmuch-show-view-raw-message)
> > +       (test-visible-output "OUTPUT.raw")'
> > +awk 'show {print} /^$/ {show=1}' < OUTPUT.raw > OUTPUT
> > +cat <<EOF >EXPECTED
> > +Yen: =A2=44
> > +EOF
> > +test_expect_equal_file OUTPUT EXPECTED
> > +
> > +test_begin_subtest "8bit text message are not decoded when viewing"
> > +test_subtest_known_broken
> > +test_emacs '(notmuch-show "id:test-plain-8bit at example.com")
> > +       (notmuch-show-view-raw-message)
> > +       (test-visible-output "OUTPUT.raw")'
> > +awk 'show {print} /^$/ {show=1}' < OUTPUT.raw > OUTPUT
> > +cat <<EOF >EXPECTED
> > +Yen: $BIG5_YEN
> > +EOF
> > +test_expect_equal_file OUTPUT EXPECTED
> > +
> > +test_done
> > diff --git a/test/test-lib.el b/test/test-lib.el
> > index 437f83f..dd3446e 100644
> > --- a/test/test-lib.el
> > +++ b/test/test-lib.el
> > @@ -57,7 +57,9 @@ (defun test-output (&optional filename)
> >  (defun test-visible-output (&optional filename)
> >    "Save visible text in current buffer to file FILENAME.  Default
> >  FILENAME is OUTPUT."
> > -  (let ((text (visible-buffer-string)))
> > +  (let ((text (visible-buffer-string))
> > +   ;; Tests expect output in UTF-8 encoding
> > +   (coding-system-for-write 'utf-8))
> >      (with-temp-file (or filename "OUTPUT") (insert text))))
> >  
> >  (defun visible-buffer-string ()

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