Subject: [PATCH v3 5/5] blame: add tests for ignoring revisions

From: Barret Rhoden <[email-masked]>
Date: Tue, 12 Feb 2019 17:27:22 -0500

Signed-off-by: Barret Rhoden <[email-masked]>
---
 t/t8013-blame-ignore-revs.sh | 199 +++++++++++++++++++++++++++++++++++
 1 file changed, 199 insertions(+)
 create mode 100755 t/t8013-blame-ignore-revs.sh

diff --git a/t/t8013-blame-ignore-revs.sh b/t/t8013-blame-ignore-revs.sh
new file mode 100755
index 000000000000..3a4ad7cf937a
--- /dev/null
+++ b/t/t8013-blame-ignore-revs.sh
@@ -0,0 +1,199 @@
+#!/bin/sh
+
+test_description='ignore revisions when blaming'
+. ./test-lib.sh
+
+# Creates:
+# 	A--B--X
+# A added line 1 and B added line 2.  X makes changes to those lines.  Sanity
+# check that X is blamed for both lines.
+test_expect_success setup '
+	test_commit A file line1 &&
+
+	echo line2 >> file &&
+	git add file &&
+	test_tick &&
+	git commit -m B &&
+	git tag B &&
+
+	test_write_lines line-one line-two > file &&
+	git add file &&
+	test_tick &&
+	git commit -m X &&
+	git tag X &&
+
+	git blame --line-porcelain file > blame_raw &&
+
+	grep "^[0-9a-f]\+ 1 1" blame_raw | sed -e "s/ .*//" > actual &&
+	git rev-parse X > expect &&
+	test_cmp expect actual &&
+
+	grep "^[0-9a-f]\+ 2 2" blame_raw | sed -e "s/ .*//" > actual &&
+	git rev-parse X > expect &&
+	test_cmp expect actual
+	'
+
+# Ignore X, make sure A is blamed for line 1 and B for line 2.
+test_expect_success ignore_rev_changing_lines '
+	git blame --line-porcelain --ignore-rev X file > blame_raw &&
+
+	grep "^[0-9a-f]\+ 1 1" blame_raw | sed -e "s/ .*//" > actual &&
+	git rev-parse A > expect &&
+	test_cmp expect actual &&
+
+	grep "^[0-9a-f]\+ 2 2" blame_raw | sed -e "s/ .*//" > actual &&
+	git rev-parse B > expect &&
+	test_cmp expect actual
+	'
+
+# For ignored revs that have added more lines than they removed, the extra lines
+# must be blamed on an all-zeros rev.
+# 	A--B--X--Y
+# Where Y changes lines 1 and 2, and adds lines 3 and 4.
+test_expect_success ignore_rev_adding_lines '
+	test_write_lines line-one-change line-two-changed new_line3 new_line4 > file &&
+	git add file &&
+	test_tick &&
+	git commit -m Y &&
+	git tag Y &&
+
+	git rev-parse Y > expect &&
+	sed -i -e "s/[0-9a-f]/0/g" expect &&
+	git blame --line-porcelain file --ignore-rev Y > blame_raw &&
+
+	grep "^[0-9a-f]\+ 3 3" blame_raw | sed -e "s/ .*//" > actual &&
+	test_cmp expect actual &&
+
+	grep "^[0-9a-f]\+ 4 4" blame_raw | sed -e "s/ .*//" > actual &&
+	test_cmp expect actual
+	'
+
+# Ignore X and Y, both in separate files.  Lines 1 == A, 2 == B.
+test_expect_success ignore_revs_from_files '
+	git rev-parse X > ignore_x &&
+	git rev-parse Y > ignore_y &&
+	git blame --line-porcelain file --ignore-revs-file ignore_x --ignore-revs-file ignore_y > blame_raw &&
+
+	grep "^[0-9a-f]\+ 1 1" blame_raw | sed -e "s/ .*//" > actual &&
+	git rev-parse A > expect &&
+	test_cmp expect actual &&
+
+	grep "^[0-9a-f]\+ 2 2" blame_raw | sed -e "s/ .*//" > actual &&
+	git rev-parse B > expect &&
+	test_cmp expect actual
+	'
+
+# Ignore X from the config option, Y from a file.
+test_expect_success ignore_revs_from_configs_and_files '
+	git config --add blame.ignoreRevsFile ignore_x &&
+	git blame --line-porcelain file --ignore-revs-file ignore_y > blame_raw &&
+
+	grep "^[0-9a-f]\+ 1 1" blame_raw | sed -e "s/ .*//" > actual &&
+	git rev-parse A > expect &&
+	test_cmp expect actual &&
+
+	grep "^[0-9a-f]\+ 2 2" blame_raw | sed -e "s/ .*//" > actual &&
+	git rev-parse B > expect &&
+	test_cmp expect actual
+	'
+
+# Override blame.ignoreRevsFile (ignore_x) with an empty string.  X should be
+# blamed now for lines 1 and 2, since we are no longer ignoring X.
+test_expect_success override_ignore_revs_file '
+	git blame --line-porcelain file --ignore-revs-file "" --ignore-revs-file ignore_y > blame_raw &&
+	git rev-parse X > expect &&
+
+	grep "^[0-9a-f]\+ 1 1" blame_raw | sed -e "s/ .*//" > actual &&
+	test_cmp expect actual &&
+
+	grep "^[0-9a-f]\+ 2 2" blame_raw | sed -e "s/ .*//" > actual &&
+	test_cmp expect actual
+	'
+test_expect_success bad_files_and_revs '
+	test_must_fail git blame file --ignore-rev NOREV 2> err &&
+	test_i18ngrep "Cannot find revision NOREV to ignore" err &&
+
+	test_must_fail git blame file --ignore-revs-file NOFILE 2> err &&
+	test_i18ngrep "Could not open object name list: NOFILE" err &&
+
+	echo NOREV > ignore_norev &&
+	test_must_fail git blame file --ignore-revs-file ignore_norev 2> err &&
+	test_i18ngrep "Invalid object name: NOREV" err
+	'
+
+# Commit Z will touch the first two lines.  Y touched all four.
+# 	A--B--X--Y--Z
+# The blame output when ignoring Z should be:
+# ^Y ... 1)
+# ^Y ... 2)
+# Y  ... 3)
+# Y  ... 4)
+# We're checking only the first character
+test_expect_success mark_ignored_lines '
+	git config --add blame.markIgnoredLines true &&
+
+	test_write_lines line-one-Z line-two-Z new_line3 new_line4 > file &&
+	git add file &&
+	test_tick &&
+	git commit -m Z &&
+	git tag Z &&
+
+	git blame --ignore-rev Z file > blame_raw &&
+	echo "*" > expect &&
+
+	sed -n "1p" blame_raw | cut -c1 > actual &&
+	test_cmp expect actual &&
+
+	sed -n "2p" blame_raw | cut -c1 > actual &&
+	test_cmp expect actual &&
+
+	sed -n "3p" blame_raw | cut -c1 > actual &&
+	! test_cmp expect actual &&
+
+	sed -n "4p" blame_raw | cut -c1 > actual &&
+	! test_cmp expect actual
+	'
+
+# Resetting the repo and creating:
+#
+# A--B--M
+#  \   /
+#   C-+
+#
+# 'A' creates a file.  B changes line 1, and C changes line 9.  M merges.
+test_expect_success ignore_merge '
+	rm -rf .git/ &&
+	git init &&
+
+	test_write_lines L1 L2 L3 L4 L5 L6 L7 L8 L9 > file &&
+	git add file &&
+	test_tick &&
+	git commit -m A &&
+	git tag A &&
+
+	test_write_lines BB L2 L3 L4 L5 L6 L7 L8 L9 > file &&
+	git add file &&
+	test_tick &&
+	git commit -m B &&
+	git tag B &&
+
+	git reset --hard A &&
+	test_write_lines L1 L2 L3 L4 L5 L6 L7 L8 CC > file &&
+	git add file &&
+	test_tick &&
+	git commit -m C &&
+	git tag C &&
+
+	test_merge M B &&
+	git blame --line-porcelain file --ignore-rev M > blame_raw &&
+
+	grep "^[0-9a-f]\+ 1 1" blame_raw | sed -e "s/ .*//" > actual &&
+	git rev-parse B > expect &&
+	test_cmp expect actual &&
+
+	grep "^[0-9a-f]\+ 9 9" blame_raw | sed -e "s/ .*//" > actual &&
+	git rev-parse C > expect &&
+	test_cmp expect actual
+	'
+
+test_done
-- 
2.21.0.rc0.258.g878e2cd30e-goog