projects / git / blame
| Commit | Line | Data |
|---|---|---|
| 4e768329 JK |
1 | #!/bin/sh |
| 2 | ||
| 3 | test_description=' | |
| 4 | The general idea is that we have a single file whose lines come from | |
| 5 | multiple other files, and those individual files were modified in the same | |
| 6 | commits. That means that we will see the same commit in multiple contexts, | |
| 7 | and each one should be attributed to the correct file. | |
| 8 | ||
| 9 | Note that we need to use "blame -C" to find the commit for all lines. We will | |
| 10 | not bother testing that the non-C case fails to find it. That is how blame | |
| 11 | behaves now, but it is not a property we want to make sure is retained. | |
| 12 | ' | |
| 13 | . ./test-lib.sh | |
| 14 | ||
| 15 | # help avoid typing and reading long strings of similar lines | |
| 16 | # in the tests below | |
| 17 | generate_expect () { | |
| 18 | while read nr data | |
| 19 | do | |
| 20 | i=0 | |
| 21 | while test $i -lt $nr | |
| 22 | do | |
| 23 | echo $data | |
| 24 | i=$((i + 1)) | |
| 25 | done | |
| 26 | done | |
| 27 | } | |
| 28 | ||
| 29 | test_expect_success 'setup split file case' ' | |
| 30 | # use lines long enough to trigger content detection | |
| 31 | test_seq 1000 1010 >one && | |
| 32 | test_seq 2000 2010 >two && | |
| 33 | git add one two && | |
| 34 | test_commit base && | |
| 35 | ||
| 36 | sed "6s/^/modified /" <one >one.tmp && | |
| 37 | mv one.tmp one && | |
| 38 | sed "6s/^/modified /" <two >two.tmp && | |
| 39 | mv two.tmp two && | |
| 40 | git add -u && | |
| 41 | test_commit modified && | |
| 42 | ||
| 43 | cat one two >combined && | |
| 44 | git add combined && | |
| 45 | git rm one two && | |
| 46 | test_commit combined | |
| 47 | ' | |
| 48 | ||
| 49 | test_expect_success 'setup simulated porcelain' ' | |
| 50 | # This just reads porcelain-ish output and tries | |
| 51 | # to output the value of a given field for each line (either by | |
| 52 | # reading the field that accompanies this line, or referencing | |
| 53 | # the information found last time the commit was mentioned). | |
| 54 | cat >read-porcelain.pl <<-\EOF | |
| 55 | my $field = shift; | |
| 56 | while (<>) { | |
| 57 | if (/^[0-9a-f]{40} /) { | |
| 58 | flush(); | |
| 59 | $hash = $&; | |
| 60 | } elsif (/^$field (.*)/) { | |
| 61 | $cache{$hash} = $1; | |
| 62 | } | |
| 63 | } | |
| 64 | flush(); | |
| 65 | ||
| 66 | sub flush { | |
| 67 | return unless defined $hash; | |
| 68 | if (defined $cache{$hash}) { | |
| 69 | print "$cache{$hash}\n"; | |
| 70 | } else { | |
| 71 | print "NONE\n"; | |
| 72 | } | |
| 73 | } | |
| 74 | EOF | |
| 75 | ' | |
| 76 | ||
| 77 | for output in porcelain line-porcelain | |
| 78 | do | |
| 79 | test_expect_success "generate --$output output" ' | |
| 80 | git blame --root -C --$output combined >output | |
| 81 | ' | |
| 82 | ||
| 83 | test_expect_success "$output output finds correct commits" ' | |
| 84 | generate_expect >expect <<-\EOF && | |
| 85 | 5 base | |
| 86 | 1 modified | |
| 87 | 10 base | |
| 88 | 1 modified | |
| 89 | 5 base | |
| 90 | EOF | |
| 91 | perl read-porcelain.pl summary <output >actual && | |
| 92 | test_cmp expect actual | |
| 93 | ' | |
| 94 | ||
| 95 | test_expect_success "$output output shows correct filenames" ' | |
| 96 | generate_expect >expect <<-\EOF && | |
| 97 | 11 one | |
| 98 | 11 two | |
| 99 | EOF | |
| 100 | perl read-porcelain.pl filename <output >actual && | |
| 101 | test_cmp expect actual | |
| 102 | ' | |
| 103 | ||
| 104 | test_expect_success "$output output shows correct previous pointer" ' | |
| 105 | generate_expect >expect <<-EOF && | |
| 106 | 5 NONE | |
| 107 | 1 $(git rev-parse modified^) one | |
| 108 | 10 NONE | |
| 109 | 1 $(git rev-parse modified^) two | |
| 110 | 5 NONE | |
| 111 | EOF | |
| 112 | perl read-porcelain.pl previous <output >actual && | |
| 113 | test_cmp expect actual | |
| 114 | ' | |
| 115 | done | |
| 116 | ||
| 117 | test_done |