git/t/t4026-color.sh
Jeff King ff40d185d2 parse_color: recognize "no$foo" to clear the $foo attribute
You can turn on ANSI text attributes like "reverse" by
putting "reverse" in your color spec. However, you cannot
ask to turn reverse off.

For common cases, this does not matter. You would turn on
"reverse" at the start of a colored section, and then clear
all attributes with a "reset". However, you may wish to turn
on some attributes, then selectively disable others. For
example:

  git log --format="%C(bold ul yellow)%h%C(noul) %s"

underlines just the hash, but without the need to re-specify
the rest of the attributes. This can also help third-party
programs, like contrib/diff-highlight, that want to turn
some attribute on/off without disrupting existing coloring.

Note that some attribute specifications are probably
nonsensical (e.g., "bold nobold"). We do not bother to flag
such constructs, and instead let the terminal sort it out.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-11-20 12:42:55 -08:00

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#!/bin/sh
#
# Copyright (c) 2008 Timo Hirvonen
#
test_description='Test diff/status color escape codes'
. ./test-lib.sh
color()
{
actual=$(git config --get-color no.such.slot "$1") &&
test "$actual" = "$2"
}
invalid_color()
{
test_must_fail git config --get-color no.such.slot "$1"
}
test_expect_success 'reset' '
color "reset" "[m"
'
test_expect_success 'attribute before color name' '
color "bold red" "[1;31m"
'
test_expect_success 'color name before attribute' '
color "red bold" "[1;31m"
'
test_expect_success 'attr fg bg' '
color "ul blue red" "[4;34;41m"
'
test_expect_success 'fg attr bg' '
color "blue ul red" "[4;34;41m"
'
test_expect_success 'fg bg attr' '
color "blue red ul" "[4;34;41m"
'
test_expect_success 'fg bg attr...' '
color "blue bold dim ul blink reverse" "[1;2;4;5;7;34m"
'
# note that nobold and nodim are the same code (22)
test_expect_success 'attr negation' '
color "nobold nodim noul noblink noreverse" "[22;24;25;27m"
'
test_expect_success 'long color specification' '
color "254 255 bold dim ul blink reverse" "[1;2;4;5;7;38;5;254;48;5;255m"
'
test_expect_success 'absurdly long color specification' '
color \
"#ffffff #ffffff bold nobold dim nodim ul noul blink noblink reverse noreverse" \
"[1;2;4;5;7;22;24;25;27;38;2;255;255;255;48;2;255;255;255m"
'
test_expect_success '256 colors' '
color "254 bold 255" "[1;38;5;254;48;5;255m"
'
test_expect_success '24-bit colors' '
color "#ff00ff black" "[38;2;255;0;255;40m"
'
test_expect_success '"normal" yields no color at all"' '
color "normal black" "[40m"
'
test_expect_success '-1 is a synonym for "normal"' '
color "-1 black" "[40m"
'
test_expect_success 'color too small' '
invalid_color "-2"
'
test_expect_success 'color too big' '
invalid_color "256"
'
test_expect_success 'extra character after color number' '
invalid_color "3X"
'
test_expect_success 'extra character after color name' '
invalid_color "redX"
'
test_expect_success 'extra character after attribute' '
invalid_color "dimX"
'
test_expect_success 'unknown color slots are ignored (diff)' '
git config color.diff.nosuchslotwilleverbedefined white &&
git diff --color
'
test_expect_success 'unknown color slots are ignored (branch)' '
git config color.branch.nosuchslotwilleverbedefined white &&
git branch -a
'
test_expect_success 'unknown color slots are ignored (status)' '
git config color.status.nosuchslotwilleverbedefined white || exit
git status
case $? in 0|1) : ok ;; *) false ;; esac
'
test_done