79 lines
2.4 KiB
Bash
Executable file
79 lines
2.4 KiB
Bash
Executable file
#!/bin/sh
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test_description='test tree diff when trees have duplicate entries'
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. ./test-lib.sh
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# make_tree_entry <mode> <mode> <sha1>
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#
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# We have to rely on perl here because not all printfs understand
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# hex escapes (only octal), and xxd is not portable.
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make_tree_entry () {
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printf '%s %s\0' "$1" "$2" &&
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perl -e 'print chr(hex($_)) for ($ARGV[0] =~ /../g)' "$3"
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}
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# Like git-mktree, but without all of the pesky sanity checking.
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# Arguments come in groups of three, each group specifying a single
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# tree entry (see make_tree_entry above).
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make_tree () {
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while test $# -gt 2; do
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make_tree_entry "$1" "$2" "$3"
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shift; shift; shift
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done |
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git hash-object -w -t tree --stdin
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}
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# this is kind of a convoluted setup, but matches
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# a real-world case. Each tree contains four entries
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# for the given path, one with one sha1, and three with
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# the other. The first tree has them split across
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# two subtrees (which are themselves duplicate entries in
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# the root tree), and the second has them all in a single subtree.
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test_expect_success 'create trees with duplicate entries' '
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blob_one=$(echo one | git hash-object -w --stdin) &&
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blob_two=$(echo two | git hash-object -w --stdin) &&
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inner_one_a=$(make_tree \
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100644 inner $blob_one
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) &&
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inner_one_b=$(make_tree \
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100644 inner $blob_two \
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100644 inner $blob_two \
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100644 inner $blob_two
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) &&
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outer_one=$(make_tree \
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040000 outer $inner_one_a \
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040000 outer $inner_one_b
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) &&
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inner_two=$(make_tree \
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100644 inner $blob_one \
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100644 inner $blob_two \
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100644 inner $blob_two \
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100644 inner $blob_two
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) &&
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outer_two=$(make_tree \
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040000 outer $inner_two
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) &&
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git tag one $outer_one &&
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git tag two $outer_two
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'
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test_expect_success 'diff-tree between trees' '
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{
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printf ":000000 100644 $ZERO_OID $blob_two A\touter/inner\n" &&
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printf ":000000 100644 $ZERO_OID $blob_two A\touter/inner\n" &&
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printf ":000000 100644 $ZERO_OID $blob_two A\touter/inner\n" &&
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printf ":100644 000000 $blob_two $ZERO_OID D\touter/inner\n" &&
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printf ":100644 000000 $blob_two $ZERO_OID D\touter/inner\n" &&
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printf ":100644 000000 $blob_two $ZERO_OID D\touter/inner\n"
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} >expect &&
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git diff-tree -r --no-abbrev one two >actual &&
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test_cmp expect actual
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'
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test_expect_success 'diff-tree with renames' '
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# same expectation as above, since we disable rename detection
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git diff-tree -M -r --no-abbrev one two >actual &&
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test_cmp expect actual
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'
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test_done
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