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git/t/t4127-apply-same-fn.sh
Junio C Hamano 4f4b18497a Merge branch 'es/test-chain-lint'
Broken &&-chains in the test scripts have been corrected.

* es/test-chain-lint:
  t6000-t9999: detect and signal failure within loop
  t5000-t5999: detect and signal failure within loop
  t4000-t4999: detect and signal failure within loop
  t0000-t3999: detect and signal failure within loop
  tests: simplify by dropping unnecessary `for` loops
  tests: apply modern idiom for exiting loop upon failure
  tests: apply modern idiom for signaling test failure
  tests: fix broken &&-chains in `{...}` groups
  tests: fix broken &&-chains in `$(...)` command substitutions
  tests: fix broken &&-chains in compound statements
  tests: use test_write_lines() to generate line-oriented output
  tests: simplify construction of large blocks of text
  t9107: use shell parameter expansion to avoid breaking &&-chain
  t6300: make `%(raw:size) --shell` test more robust
  t5516: drop unnecessary subshell and command invocation
  t4202: clarify intent by creating expected content less cleverly
  t1020: avoid aborting entire test script when one test fails
  t1010: fix unnoticed failure on Windows
  t/lib-pager: use sane_unset() to avoid breaking &&-chain
2022-01-03 16:24:15 -08:00

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#!/bin/sh
test_description='apply same filename'
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
modify () {
sed -e "$1" < "$2" > "$2".x &&
mv "$2".x "$2"
}
test_expect_success setup '
test_write_lines a b c d e f g h i j k l m >same_fn &&
cp same_fn other_fn &&
git add same_fn other_fn &&
git commit -m initial
'
test_expect_success 'apply same filename with independent changes' '
modify "s/^d/z/" same_fn &&
git diff > patch0 &&
git add same_fn &&
modify "s/^i/y/" same_fn &&
git diff >> patch0 &&
cp same_fn same_fn2 &&
git reset --hard &&
git apply patch0 &&
test_cmp same_fn same_fn2
'
test_expect_success 'apply same filename with overlapping changes' '
git reset --hard &&
# Store same_fn so that we can check apply -R in next test
cp same_fn same_fn1 &&
modify "s/^d/z/" same_fn &&
git diff > patch0 &&
git add same_fn &&
modify "s/^e/y/" same_fn &&
git diff >> patch0 &&
cp same_fn same_fn2 &&
git reset --hard &&
git apply patch0 &&
test_cmp same_fn same_fn2
'
test_expect_success 'apply same filename with overlapping changes, in reverse' '
git apply -R patch0 &&
test_cmp same_fn same_fn1
'
test_expect_success 'apply same new filename after rename' '
git reset --hard &&
git mv same_fn new_fn &&
modify "s/^d/z/" new_fn &&
git add new_fn &&
git diff -M --cached > patch1 &&
modify "s/^e/y/" new_fn &&
git diff >> patch1 &&
cp new_fn new_fn2 &&
git reset --hard &&
git apply --index patch1 &&
test_cmp new_fn new_fn2
'
test_expect_success 'apply same old filename after rename -- should fail.' '
git reset --hard &&
git mv same_fn new_fn &&
modify "s/^d/z/" new_fn &&
git add new_fn &&
git diff -M --cached > patch1 &&
git mv new_fn same_fn &&
modify "s/^e/y/" same_fn &&
git diff >> patch1 &&
git reset --hard &&
test_must_fail git apply patch1
'
test_expect_success 'apply A->B (rename), C->A (rename), A->A -- should pass.' '
git reset --hard &&
git mv same_fn new_fn &&
modify "s/^d/z/" new_fn &&
git add new_fn &&
git diff -M --cached > patch1 &&
git commit -m "a rename" &&
git mv other_fn same_fn &&
modify "s/^e/y/" same_fn &&
git add same_fn &&
git diff -M --cached >> patch1 &&
modify "s/^g/x/" same_fn &&
git diff >> patch1 &&
git reset --hard HEAD^ &&
git apply patch1
'
test_done