git/t/t4214-log-graph-octopus.sh
Noam Postavsky 04005834ed log: fix coloring of certain octopus merge shapes
For octopus merges where the first parent edge immediately merges into
the next column to the left, the number of columns should be one less
than the usual case.

First parent to the left case:

| *-.
| |\ \
|/ / /

The usual case:

| *-.
| |\ \
| | | *

Also refactor the code to iterate over columns rather than dashes,
building from an initial patch suggested by Jeff King.

Signed-off-by: Noam Postavsky <npostavs@users.sourceforge.net>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-12 12:22:48 +09:00

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#!/bin/sh
test_description='git log --graph of skewed left octopus merge.'
. ./test-lib.sh
test_expect_success 'set up merge history' '
cat >expect.uncolored <<-\EOF &&
* left
| *---. octopus-merge
| |\ \ \
|/ / / /
| | | * 4
| | * | 3
| | |/
| * | 2
| |/
* | 1
|/
* initial
EOF
cat >expect.colors <<-\EOF &&
* left
<RED>|<RESET> *<BLUE>-<RESET><BLUE>-<RESET><MAGENTA>-<RESET><MAGENTA>.<RESET> octopus-merge
<RED>|<RESET> <RED>|<RESET><YELLOW>\<RESET> <BLUE>\<RESET> <MAGENTA>\<RESET>
<RED>|<RESET><RED>/<RESET> <YELLOW>/<RESET> <BLUE>/<RESET> <MAGENTA>/<RESET>
<RED>|<RESET> <YELLOW>|<RESET> <BLUE>|<RESET> * 4
<RED>|<RESET> <YELLOW>|<RESET> * <MAGENTA>|<RESET> 3
<RED>|<RESET> <YELLOW>|<RESET> <MAGENTA>|<RESET><MAGENTA>/<RESET>
<RED>|<RESET> * <MAGENTA>|<RESET> 2
<RED>|<RESET> <MAGENTA>|<RESET><MAGENTA>/<RESET>
* <MAGENTA>|<RESET> 1
<MAGENTA>|<RESET><MAGENTA>/<RESET>
* initial
EOF
test_commit initial &&
for i in 1 2 3 4 ; do
git checkout master -b $i || return $?
# Make tag name different from branch name, to avoid
# ambiguity error when calling checkout.
test_commit $i $i $i tag$i || return $?
done &&
git checkout 1 -b merge &&
test_tick &&
git merge -m octopus-merge 1 2 3 4 &&
git checkout 1 -b L &&
test_commit left
'
test_expect_success 'log --graph with tricky octopus merge with colors' '
test_config log.graphColors red,green,yellow,blue,magenta,cyan &&
git log --color=always --graph --date-order --pretty=tformat:%s --all >actual.colors.raw &&
test_decode_color <actual.colors.raw | sed "s/ *\$//" >actual.colors &&
test_cmp expect.colors actual.colors
'
test_expect_success 'log --graph with tricky octopus merge, no color' '
git log --color=never --graph --date-order --pretty=tformat:%s --all >actual.raw &&
sed "s/ *\$//" actual.raw >actual &&
test_cmp expect.uncolored actual
'
# Repeat the previous two tests with "normal" octopus merge (i.e.,
# without the first parent skewing to the "left" branch column).
test_expect_success 'log --graph with normal octopus merge, no color' '
cat >expect.uncolored <<-\EOF &&
*---. octopus-merge
|\ \ \
| | | * 4
| | * | 3
| | |/
| * | 2
| |/
* | 1
|/
* initial
EOF
git log --color=never --graph --date-order --pretty=tformat:%s merge >actual.raw &&
sed "s/ *\$//" actual.raw >actual &&
test_cmp expect.uncolored actual
'
test_expect_success 'log --graph with normal octopus merge with colors' '
cat >expect.colors <<-\EOF &&
*<YELLOW>-<RESET><YELLOW>-<RESET><BLUE>-<RESET><BLUE>.<RESET> octopus-merge
<RED>|<RESET><GREEN>\<RESET> <YELLOW>\<RESET> <BLUE>\<RESET>
<RED>|<RESET> <GREEN>|<RESET> <YELLOW>|<RESET> * 4
<RED>|<RESET> <GREEN>|<RESET> * <BLUE>|<RESET> 3
<RED>|<RESET> <GREEN>|<RESET> <BLUE>|<RESET><BLUE>/<RESET>
<RED>|<RESET> * <BLUE>|<RESET> 2
<RED>|<RESET> <BLUE>|<RESET><BLUE>/<RESET>
* <BLUE>|<RESET> 1
<BLUE>|<RESET><BLUE>/<RESET>
* initial
EOF
test_config log.graphColors red,green,yellow,blue,magenta,cyan &&
git log --color=always --graph --date-order --pretty=tformat:%s merge >actual.colors.raw &&
test_decode_color <actual.colors.raw | sed "s/ *\$//" >actual.colors &&
test_cmp expect.colors actual.colors
'
test_done