git-commit-vandalism/t/t6016-rev-list-graph-simplify-history.sh
Johannes Schindelin 334afbc76f tests: mark tests relying on the current default for init.defaultBranch
In addition to the manual adjustment to let the `linux-gcc` CI job run
the test suite with `master` and then with `main`, this patch makes sure
that GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME is set in all test scripts
that currently rely on the initial branch name being `master by default.

To determine which test scripts to mark up, the first step was to
force-set the default branch name to `master` in

- all test scripts that contain the keyword `master`,

- t4211, which expects `t/t4211/history.export` with a hard-coded ref to
  initialize the default branch,

- t5560 because it sources `t/t556x_common` which uses `master`,

- t8002 and t8012 because both source `t/annotate-tests.sh` which also
  uses `master`)

This trick was performed by this command:

	$ sed -i '/^ *\. \.\/\(test-lib\|lib-\(bash\|cvs\|git-svn\)\|gitweb-lib\)\.sh$/i\
	GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master\
	export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME\
	' $(git grep -l master t/t[0-9]*.sh) \
	t/t4211*.sh t/t5560*.sh t/t8002*.sh t/t8012*.sh

After that, careful, manual inspection revealed that some of the test
scripts containing the needle `master` do not actually rely on a
specific default branch name: either they mention `master` only in a
comment, or they initialize that branch specificially, or they do not
actually refer to the current default branch. Therefore, the
aforementioned modification was undone in those test scripts thusly:

	$ git checkout HEAD -- \
		t/t0027-auto-crlf.sh t/t0060-path-utils.sh \
		t/t1011-read-tree-sparse-checkout.sh \
		t/t1305-config-include.sh t/t1309-early-config.sh \
		t/t1402-check-ref-format.sh t/t1450-fsck.sh \
		t/t2024-checkout-dwim.sh \
		t/t2106-update-index-assume-unchanged.sh \
		t/t3040-subprojects-basic.sh t/t3301-notes.sh \
		t/t3308-notes-merge.sh t/t3423-rebase-reword.sh \
		t/t3436-rebase-more-options.sh \
		t/t4015-diff-whitespace.sh t/t4257-am-interactive.sh \
		t/t5323-pack-redundant.sh t/t5401-update-hooks.sh \
		t/t5511-refspec.sh t/t5526-fetch-submodules.sh \
		t/t5529-push-errors.sh t/t5530-upload-pack-error.sh \
		t/t5548-push-porcelain.sh \
		t/t5552-skipping-fetch-negotiator.sh \
		t/t5572-pull-submodule.sh t/t5608-clone-2gb.sh \
		t/t5614-clone-submodules-shallow.sh \
		t/t7508-status.sh t/t7606-merge-custom.sh \
		t/t9302-fast-import-unpack-limit.sh

We excluded one set of test scripts in these commands, though: the range
of `git p4` tests. The reason? `git p4` stores the (foreign) remote
branch in the branch called `p4/master`, which is obviously not the
default branch. Manual analysis revealed that only five of these tests
actually require a specific default branch name to pass; They were
modified thusly:

	$ sed -i '/^ *\. \.\/lib-git-p4\.sh$/i\
	GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master\
	export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME\
	' t/t980[0167]*.sh t/t9811*.sh

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-19 15:44:17 -08:00

267 lines
7.5 KiB
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#!/bin/sh
# There's more than one "correct" way to represent the history graphically.
# These tests depend on the current behavior of the graphing code. If the
# graphing code is ever changed to draw the output differently, these tests
# cases will need to be updated to know about the new layout.
test_description='--graph and simplified history'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
. ./test-lib.sh
test_expect_success 'set up rev-list --graph test' '
# 3 commits on branch A
test_commit A1 foo.txt &&
test_commit A2 bar.txt &&
test_commit A3 bar.txt &&
git branch -m master A &&
# 2 commits on branch B, started from A1
git checkout -b B A1 &&
test_commit B1 foo.txt &&
test_commit B2 abc.txt &&
# 2 commits on branch C, started from A2
git checkout -b C A2 &&
test_commit C1 xyz.txt &&
test_commit C2 xyz.txt &&
# Octopus merge B and C into branch A
git checkout A &&
git merge B C &&
git tag A4 &&
test_commit A5 bar.txt &&
# More commits on C, then merge C into A
git checkout C &&
test_commit C3 foo.txt &&
test_commit C4 bar.txt &&
git checkout A &&
git merge -s ours C &&
git tag A6 &&
test_commit A7 bar.txt &&
# Store commit names in variables for later use
A1=$(git rev-parse --verify A1) &&
A2=$(git rev-parse --verify A2) &&
A3=$(git rev-parse --verify A3) &&
A4=$(git rev-parse --verify A4) &&
A5=$(git rev-parse --verify A5) &&
A6=$(git rev-parse --verify A6) &&
A7=$(git rev-parse --verify A7) &&
B1=$(git rev-parse --verify B1) &&
B2=$(git rev-parse --verify B2) &&
C1=$(git rev-parse --verify C1) &&
C2=$(git rev-parse --verify C2) &&
C3=$(git rev-parse --verify C3) &&
C4=$(git rev-parse --verify C4)
'
test_expect_success '--graph --all' '
rm -f expected &&
echo "* $A7" >> expected &&
echo "* $A6" >> expected &&
echo "|\\ " >> expected &&
echo "| * $C4" >> expected &&
echo "| * $C3" >> expected &&
echo "* | $A5" >> expected &&
echo "| | " >> expected &&
echo "| \\ " >> expected &&
echo "*-. | $A4" >> expected &&
echo "|\\ \\| " >> expected &&
echo "| | * $C2" >> expected &&
echo "| | * $C1" >> expected &&
echo "| * | $B2" >> expected &&
echo "| * | $B1" >> expected &&
echo "* | | $A3" >> expected &&
echo "| |/ " >> expected &&
echo "|/| " >> expected &&
echo "* | $A2" >> expected &&
echo "|/ " >> expected &&
echo "* $A1" >> expected &&
git rev-list --graph --all > actual &&
test_cmp expected actual
'
# Make sure the graph_is_interesting() code still realizes
# that undecorated merges are interesting, even with --simplify-by-decoration
test_expect_success '--graph --simplify-by-decoration' '
rm -f expected &&
git tag -d A4 &&
echo "* $A7" >> expected &&
echo "* $A6" >> expected &&
echo "|\\ " >> expected &&
echo "| * $C4" >> expected &&
echo "| * $C3" >> expected &&
echo "* | $A5" >> expected &&
echo "| | " >> expected &&
echo "| \\ " >> expected &&
echo "*-. | $A4" >> expected &&
echo "|\\ \\| " >> expected &&
echo "| | * $C2" >> expected &&
echo "| | * $C1" >> expected &&
echo "| * | $B2" >> expected &&
echo "| * | $B1" >> expected &&
echo "* | | $A3" >> expected &&
echo "| |/ " >> expected &&
echo "|/| " >> expected &&
echo "* | $A2" >> expected &&
echo "|/ " >> expected &&
echo "* $A1" >> expected &&
git rev-list --graph --all --simplify-by-decoration > actual &&
test_cmp expected actual
'
test_expect_success 'setup: get rid of decorations on B' '
git tag -d B2 &&
git tag -d B1 &&
git branch -d B
'
# Graph with branch B simplified away
test_expect_success '--graph --simplify-by-decoration prune branch B' '
rm -f expected &&
echo "* $A7" >> expected &&
echo "* $A6" >> expected &&
echo "|\\ " >> expected &&
echo "| * $C4" >> expected &&
echo "| * $C3" >> expected &&
echo "* | $A5" >> expected &&
echo "* | $A4" >> expected &&
echo "|\\| " >> expected &&
echo "| * $C2" >> expected &&
echo "| * $C1" >> expected &&
echo "* | $A3" >> expected &&
echo "|/ " >> expected &&
echo "* $A2" >> expected &&
echo "* $A1" >> expected &&
git rev-list --graph --simplify-by-decoration --all > actual &&
test_cmp expected actual
'
test_expect_success '--graph --full-history -- bar.txt' '
rm -f expected &&
echo "* $A7" >> expected &&
echo "* $A6" >> expected &&
echo "|\\ " >> expected &&
echo "| * $C4" >> expected &&
echo "* | $A5" >> expected &&
echo "* | $A4" >> expected &&
echo "|\\| " >> expected &&
echo "* | $A3" >> expected &&
echo "|/ " >> expected &&
echo "* $A2" >> expected &&
git rev-list --graph --full-history --all -- bar.txt > actual &&
test_cmp expected actual
'
test_expect_success '--graph --full-history --simplify-merges -- bar.txt' '
rm -f expected &&
echo "* $A7" >> expected &&
echo "* $A6" >> expected &&
echo "|\\ " >> expected &&
echo "| * $C4" >> expected &&
echo "* | $A5" >> expected &&
echo "* | $A3" >> expected &&
echo "|/ " >> expected &&
echo "* $A2" >> expected &&
git rev-list --graph --full-history --simplify-merges --all \
-- bar.txt > actual &&
test_cmp expected actual
'
test_expect_success '--graph -- bar.txt' '
rm -f expected &&
echo "* $A7" >> expected &&
echo "* $A5" >> expected &&
echo "* $A3" >> expected &&
echo "| * $C4" >> expected &&
echo "|/ " >> expected &&
echo "* $A2" >> expected &&
git rev-list --graph --all -- bar.txt > actual &&
test_cmp expected actual
'
test_expect_success '--graph --sparse -- bar.txt' '
rm -f expected &&
echo "* $A7" >> expected &&
echo "* $A6" >> expected &&
echo "* $A5" >> expected &&
echo "* $A4" >> expected &&
echo "* $A3" >> expected &&
echo "| * $C4" >> expected &&
echo "| * $C3" >> expected &&
echo "| * $C2" >> expected &&
echo "| * $C1" >> expected &&
echo "|/ " >> expected &&
echo "* $A2" >> expected &&
echo "* $A1" >> expected &&
git rev-list --graph --sparse --all -- bar.txt > actual &&
test_cmp expected actual
'
test_expect_success '--graph ^C4' '
rm -f expected &&
echo "* $A7" >> expected &&
echo "* $A6" >> expected &&
echo "* $A5" >> expected &&
echo "* $A4" >> expected &&
echo "|\\ " >> expected &&
echo "| * $B2" >> expected &&
echo "| * $B1" >> expected &&
echo "* $A3" >> expected &&
git rev-list --graph --all ^C4 > actual &&
test_cmp expected actual
'
test_expect_success '--graph ^C3' '
rm -f expected &&
echo "* $A7" >> expected &&
echo "* $A6" >> expected &&
echo "|\\ " >> expected &&
echo "| * $C4" >> expected &&
echo "* $A5" >> expected &&
echo "* $A4" >> expected &&
echo "|\\ " >> expected &&
echo "| * $B2" >> expected &&
echo "| * $B1" >> expected &&
echo "* $A3" >> expected &&
git rev-list --graph --all ^C3 > actual &&
test_cmp expected actual
'
# I don't think the ordering of the boundary commits is really
# that important, but this test depends on it. If the ordering ever changes
# in the code, we'll need to update this test.
test_expect_success '--graph --boundary ^C3' '
rm -f expected &&
echo "* $A7" >> expected &&
echo "* $A6" >> expected &&
echo "|\\ " >> expected &&
echo "| * $C4" >> expected &&
echo "* | $A5" >> expected &&
echo "| | " >> expected &&
echo "| \\ " >> expected &&
echo "*-. \\ $A4" >> expected &&
echo "|\\ \\ \\ " >> expected &&
echo "| * | | $B2" >> expected &&
echo "| * | | $B1" >> expected &&
echo "* | | | $A3" >> expected &&
echo "o | | | $A2" >> expected &&
echo "|/ / / " >> expected &&
echo "o / / $A1" >> expected &&
echo " / / " >> expected &&
echo "| o $C3" >> expected &&
echo "|/ " >> expected &&
echo "o $C2" >> expected &&
git rev-list --graph --boundary --all ^C3 > actual &&
test_cmp expected actual
'
test_done