On Wed, Apr 23, 2014 at 10:38:07AM -0700, Junio C Hamano wrote:
> "Michael S. Tsirkin" <m...@redhat.com> writes:
> 
> > The test is very basic and can be extended.
> > Couldn't find a good existing place to put it,
> > so created a new file.
> >
> > Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
> > ---
> >  t/t4056-diff-order.sh | 63 
> > +++++++++++++++++++++++++++++++++++++++++++++++++++
> >  1 file changed, 63 insertions(+)
> >  create mode 100755 t/t4056-diff-order.sh
> >
> > diff --git a/t/t4056-diff-order.sh b/t/t4056-diff-order.sh
> > new file mode 100755
> > index 0000000..a247b7a
> > --- /dev/null
> > +++ b/t/t4056-diff-order.sh
> > @@ -0,0 +1,63 @@
> > +#!/bin/sh
> > +
> > +test_description='diff orderfile'
> > +
> > +. ./test-lib.sh
> > +
> > +test_expect_success 'setup' '
> > +        as="a a a a a a a a" && # eight a
> > +        test_write_lines $as >foo &&
> > +        test_write_lines $as >bar &&
> > +   git add foo bar &&
> > +   git commit -a -m initial &&
> > +        test_write_lines $as b >foo &&
> > +        test_write_lines $as b >bar &&
> 
> These lines are curiously jaggy; are you indenting with spaces?
> Please don't.
> 
> My running "git am -s3c" may auto-fix these indentation issues, so
> please wait before seeing what may be pushed out on 'pu'.  It may
> turn out that there is no other need for rerolling this patch in the
> series.
> 
> Thanks.

Not normally - but this did creep in here, somehow :(

> > +   git commit -a -m first &&
> > +   test_write_lines bar foo >bar-then-foo &&
> > +   test_write_lines foo bar >foo-then-bar &&
> > +   git diff -Ofoo-then-bar HEAD~1..HEAD >diff-foo-then-bar &&
> > +   git diff -Obar-then-foo HEAD~1..HEAD >diff-bar-then-foo
> > +'
> > +
> > +test_diff_well_formed () {
> > +   grep ^+b "$1" >added
> > +   grep ^-b "$1" >removed
> > +   grep ^+++ "$1" >oldfiles
> > +   grep ^--- "$1" >newfiles
> > +   test_line_count = 2 added &&
> > +   test_line_count = 0 removed &&
> > +   test_line_count = 2 oldfiles &&
> > +   test_line_count = 2 newfiles
> > +}
> > +
> > +test_expect_success 'diff output with -O is well-formed' '
> > +   test_diff_well_formed diff-foo-then-bar &&
> > +   test_diff_well_formed diff-bar-then-foo
> > +'
> > +
> > +test_expect_success 'flag -O affects diff output' '
> > +   ! test_cmp diff-foo-then-bar diff-bar-then-foo
> > +'
> > +
> > +test_expect_success 'orderfile is same as -O' '
> > +   test_config diff.orderfile foo-then-bar &&
> > +   git diff HEAD~1..HEAD >diff-foo-then-bar-config &&
> > +   test_config diff.orderfile bar-then-foo &&
> > +   git diff HEAD~1..HEAD >diff-bar-then-foo-config &&
> > +   test_cmp diff-foo-then-bar diff-foo-then-bar-config &&
> > +   test_cmp diff-bar-then-foo diff-bar-then-foo-config
> > +'
> > +
> > +test_expect_success '-O overrides orderfile' '
> > +   test_config diff.orderfile foo-then-bar &&
> > +   git diff -Obar-then-foo HEAD~1..HEAD >diff-bar-then-foo-flag &&
> > +   test_cmp diff-bar-then-foo diff-bar-then-foo-flag
> > +'
> > +
> > +test_expect_success '/dev/null is same as no orderfile' '
> > +   git diff -O/dev/null HEAD~1..HEAD>diff-null-orderfile &&
> > +   git diff HEAD~1..HEAD >diff-default &&
> > +   test_cmp diff-null-orderfile diff-default
> > +'
> > +
> > +test_done
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