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ef2ac77e9f
Buffer the instruction section upon encountering it for later interpretation. An alternative design would involve parsing the instructions at this point and buffering them in some processed form. Using the unprocessed form is simpler. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Ramkumar Ramachandra <artagnon@gmail.com>
142 lines
4.6 KiB
Bash
Executable File
142 lines
4.6 KiB
Bash
Executable File
#!/bin/sh
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test_description='test parsing of svndiff0 files
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Using the "test-svn-fe -d" helper, check that svn-fe correctly
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interprets deltas using various facilities (some from the spec,
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some only learned from practice).
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'
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. ./test-lib.sh
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>empty
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printf foo >preimage
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test_expect_success 'reject empty delta' '
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test_must_fail test-svn-fe -d preimage empty 0
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'
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test_expect_success 'delta can empty file' '
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printf "SVNQ" | q_to_nul >clear.delta &&
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test-svn-fe -d preimage clear.delta 4 >actual &&
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test_cmp empty actual
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'
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test_expect_success 'reject svndiff2' '
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printf "SVN\002" >bad.filetype &&
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test_must_fail test-svn-fe -d preimage bad.filetype 4
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'
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test_expect_success 'one-window empty delta' '
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printf "SVNQ%s" "QQQQQ" | q_to_nul >clear.onewindow &&
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test-svn-fe -d preimage clear.onewindow 9 >actual &&
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test_cmp empty actual
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'
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test_expect_success 'reject incomplete window header' '
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printf "SVNQ%s" "QQQQQ" | q_to_nul >clear.onewindow &&
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printf "SVNQ%s" "QQ" | q_to_nul >clear.partialwindow &&
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test_must_fail test-svn-fe -d preimage clear.onewindow 6 &&
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test_must_fail test-svn-fe -d preimage clear.partialwindow 6
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'
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test_expect_success 'reject declared delta longer than actual delta' '
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printf "SVNQ%s" "QQQQQ" | q_to_nul >clear.onewindow &&
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printf "SVNQ%s" "QQ" | q_to_nul >clear.partialwindow &&
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test_must_fail test-svn-fe -d preimage clear.onewindow 14 &&
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test_must_fail test-svn-fe -d preimage clear.partialwindow 9
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'
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test_expect_success 'two-window empty delta' '
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printf "SVNQ%s%s" "QQQQQ" "QQQQQ" | q_to_nul >clear.twowindow &&
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test-svn-fe -d preimage clear.twowindow 14 >actual &&
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test_must_fail test-svn-fe -d preimage clear.twowindow 13 &&
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test_cmp empty actual
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'
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test_expect_success 'noisy zeroes' '
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printf "SVNQ%s" \
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"RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRQQQQQ" |
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tr R "\200" |
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q_to_nul >clear.noisy &&
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len=$(wc -c <clear.noisy) &&
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test-svn-fe -d preimage clear.noisy $len &&
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test_cmp empty actual
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'
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test_expect_success 'reject variable-length int in magic' '
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printf "SVNRQ" | tr R "\200" | q_to_nul >clear.badmagic &&
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test_must_fail test-svn-fe -d preimage clear.badmagic 5
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'
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test_expect_success 'reject truncated integer' '
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printf "SVNQ%s%s" "QQQQQ" "QQQQRRQ" |
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tr R "\200" |
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q_to_nul >clear.fullint &&
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printf "SVNQ%s%s" "QQQQQ" "QQQQRR" |
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tr RT "\201" |
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q_to_nul >clear.partialint &&
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test_must_fail test-svn-fe -d preimage clear.fullint 15 &&
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test-svn-fe -d preimage clear.fullint 16 &&
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test_must_fail test-svn-fe -d preimage clear.partialint 15
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'
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test_expect_success 'nonempty (but unused) preimage view' '
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printf "SVNQ%b" "Q\003QQQ" | q_to_nul >clear.readpreimage &&
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test-svn-fe -d preimage clear.readpreimage 9 >actual &&
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test_cmp empty actual
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'
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test_expect_success 'preimage view: right endpoint cannot backtrack' '
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printf "SVNQ%b%b" "Q\003QQQ" "Q\002QQQ" |
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q_to_nul >clear.backtrack &&
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test_must_fail test-svn-fe -d preimage clear.backtrack 14
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'
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test_expect_success 'preimage view: left endpoint can advance' '
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printf "SVNQ%b%b" "Q\003QQQ" "\001\002QQQ" |
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q_to_nul >clear.preshrink &&
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printf "SVNQ%b%b" "Q\003QQQ" "\001\001QQQ" |
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q_to_nul >clear.shrinkbacktrack &&
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test-svn-fe -d preimage clear.preshrink 14 >actual &&
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test_must_fail test-svn-fe -d preimage clear.shrinkbacktrack 14 &&
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test_cmp empty actual
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'
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test_expect_success 'preimage view: offsets compared by value' '
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printf "SVNQ%b%b" "\001\001QQQ" "\0200Q\003QQQ" |
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q_to_nul >clear.noisybacktrack &&
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printf "SVNQ%b%b" "\001\001QQQ" "\0200\001\002QQQ" |
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q_to_nul >clear.noisyadvance &&
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test_must_fail test-svn-fe -d preimage clear.noisybacktrack 15 &&
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test-svn-fe -d preimage clear.noisyadvance 15 &&
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test_cmp empty actual
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'
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test_expect_success 'preimage view: reject truncated preimage' '
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printf "SVNQ%b" "\010QQQQ" | q_to_nul >clear.lateemptyread &&
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printf "SVNQ%b" "\010\001QQQ" | q_to_nul >clear.latenonemptyread &&
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printf "SVNQ%b" "\001\010QQQ" | q_to_nul >clear.longread &&
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test_must_fail test-svn-fe -d preimage clear.lateemptyread 9 &&
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test_must_fail test-svn-fe -d preimage clear.latenonemptyread 9 &&
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test_must_fail test-svn-fe -d preimage clear.longread 9
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'
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test_expect_success 'inline data' '
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printf "SVNQ%b%s%b%s" "QQQQ\003" "bar" "QQQQ\001" "x" |
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q_to_nul >inline.clear &&
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test-svn-fe -d preimage inline.clear 18 >actual &&
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test_cmp empty actual
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'
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test_expect_success 'reject truncated inline data' '
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printf "SVNQ%b%s" "QQQQ\003" "b" | q_to_nul >inline.trunc &&
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test_must_fail test-svn-fe -d preimage inline.trunc 10
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'
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test_expect_success 'reject truncated inline data (after instruction section)' '
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printf "SVNQ%b%b%s" "QQ\001\001\003" "\0201" "b" | q_to_nul >insn.trunc &&
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test_must_fail test-svn-fe -d preimage insn.trunc 11
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'
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test_done
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