tvl-depot/third_party/git/t/t4054-diff-bogus-tree.sh
Vincent Ambo f4609b896f merge(3p/git): Merge git subtree at v2.29.2
This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because
there is some breakage in the git build related to the netrc
credentials helper which someone has taken care of in nixpkgs.

The stable channel is not used for anything other than git, so this
should be fine.

Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb
2020-11-21 19:45:56 +01:00

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#!/bin/sh
test_description='test diff with a bogus tree containing the null sha1'
. ./test-lib.sh
test_expect_success 'create bogus tree' '
name=$(echo $ZERO_OID | sed -e "s/00/Q/g") &&
bogus_tree=$(
printf "100644 fooQ$name" |
q_to_nul |
git hash-object -w --stdin -t tree
)
'
test_expect_success 'create tree with matching file' '
echo bar >foo &&
git add foo &&
good_tree=$(git write-tree) &&
blob=$(git rev-parse :foo)
'
test_expect_success 'raw diff shows null sha1 (addition)' '
echo ":000000 100644 $ZERO_OID $ZERO_OID A foo" >expect &&
git diff-tree $EMPTY_TREE $bogus_tree >actual &&
test_cmp expect actual
'
test_expect_success 'raw diff shows null sha1 (removal)' '
echo ":100644 000000 $ZERO_OID $ZERO_OID D foo" >expect &&
git diff-tree $bogus_tree $EMPTY_TREE >actual &&
test_cmp expect actual
'
test_expect_success 'raw diff shows null sha1 (modification)' '
echo ":100644 100644 $blob $ZERO_OID M foo" >expect &&
git diff-tree $good_tree $bogus_tree >actual &&
test_cmp expect actual
'
test_expect_success 'raw diff shows null sha1 (other direction)' '
echo ":100644 100644 $ZERO_OID $blob M foo" >expect &&
git diff-tree $bogus_tree $good_tree >actual &&
test_cmp expect actual
'
test_expect_success 'raw diff shows null sha1 (reverse)' '
echo ":100644 100644 $ZERO_OID $blob M foo" >expect &&
git diff-tree -R $good_tree $bogus_tree >actual &&
test_cmp expect actual
'
test_expect_success 'raw diff shows null sha1 (index)' '
echo ":100644 100644 $ZERO_OID $blob M foo" >expect &&
git diff-index $bogus_tree >actual &&
test_cmp expect actual
'
test_expect_success 'patch fails due to bogus sha1 (addition)' '
test_must_fail git diff-tree -p $EMPTY_TREE $bogus_tree
'
test_expect_success 'patch fails due to bogus sha1 (removal)' '
test_must_fail git diff-tree -p $bogus_tree $EMPTY_TREE
'
test_expect_success 'patch fails due to bogus sha1 (modification)' '
test_must_fail git diff-tree -p $good_tree $bogus_tree
'
test_expect_success 'patch fails due to bogus sha1 (other direction)' '
test_must_fail git diff-tree -p $bogus_tree $good_tree
'
test_expect_success 'patch fails due to bogus sha1 (reverse)' '
test_must_fail git diff-tree -R -p $good_tree $bogus_tree
'
test_expect_success 'patch fails due to bogus sha1 (index)' '
test_must_fail git diff-index -p $bogus_tree
'
test_done