26a4a3694a8f322e579d7a3678d13e61b077e317
1#!/bin/sh
2
3test_description='test parsing of svndiff0 files
4
5Using the "test-svn-fe -d" helper, check that svn-fe correctly
6interprets deltas using various facilities (some from the spec,
7some only learned from practice).
8'
9. ./test-lib.sh
10
11>empty
12printf foo >preimage
13
14test_expect_success 'reject empty delta' '
15 test_must_fail test-svn-fe -d preimage empty 0
16'
17
18test_expect_success 'delta can empty file' '
19 printf "SVNQ" | q_to_nul >clear.delta &&
20 test-svn-fe -d preimage clear.delta 4 >actual &&
21 test_cmp empty actual
22'
23
24test_expect_success 'reject svndiff2' '
25 printf "SVN\002" >bad.filetype &&
26 test_must_fail test-svn-fe -d preimage bad.filetype 4
27'
28
29test_expect_success 'one-window empty delta' '
30 printf "SVNQ%s" "QQQQQ" | q_to_nul >clear.onewindow &&
31 test-svn-fe -d preimage clear.onewindow 9 >actual &&
32 test_cmp empty actual
33'
34
35test_expect_success 'reject incomplete window header' '
36 printf "SVNQ%s" "QQQQQ" | q_to_nul >clear.onewindow &&
37 printf "SVNQ%s" "QQ" | q_to_nul >clear.partialwindow &&
38 test_must_fail test-svn-fe -d preimage clear.onewindow 6 &&
39 test_must_fail test-svn-fe -d preimage clear.partialwindow 6
40'
41
42test_expect_success 'reject declared delta longer than actual delta' '
43 printf "SVNQ%s" "QQQQQ" | q_to_nul >clear.onewindow &&
44 printf "SVNQ%s" "QQ" | q_to_nul >clear.partialwindow &&
45 test_must_fail test-svn-fe -d preimage clear.onewindow 14 &&
46 test_must_fail test-svn-fe -d preimage clear.partialwindow 9
47'
48
49test_expect_success 'two-window empty delta' '
50 printf "SVNQ%s%s" "QQQQQ" "QQQQQ" | q_to_nul >clear.twowindow &&
51 test-svn-fe -d preimage clear.twowindow 14 >actual &&
52 test_must_fail test-svn-fe -d preimage clear.twowindow 13 &&
53 test_cmp empty actual
54'
55
56test_expect_success 'noisy zeroes' '
57 printf "SVNQ%s" \
58 "RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRQQQQQ" |
59 tr R "\200" |
60 q_to_nul >clear.noisy &&
61 len=$(wc -c <clear.noisy) &&
62 test-svn-fe -d preimage clear.noisy $len &&
63 test_cmp empty actual
64'
65
66test_expect_success 'reject variable-length int in magic' '
67 printf "SVNRQ" | tr R "\200" | q_to_nul >clear.badmagic &&
68 test_must_fail test-svn-fe -d preimage clear.badmagic 5
69'
70
71test_expect_success 'reject truncated integer' '
72 printf "SVNQ%s%s" "QQQQQ" "QQQQRRQ" |
73 tr R "\200" |
74 q_to_nul >clear.fullint &&
75 printf "SVNQ%s%s" "QQQQQ" "QQQQRR" |
76 tr RT "\201" |
77 q_to_nul >clear.partialint &&
78 test_must_fail test-svn-fe -d preimage clear.fullint 15 &&
79 test-svn-fe -d preimage clear.fullint 16 &&
80 test_must_fail test-svn-fe -d preimage clear.partialint 15
81'
82
83test_expect_success 'nonempty (but unused) preimage view' '
84 printf "SVNQ%b" "Q\003QQQ" | q_to_nul >clear.readpreimage &&
85 test-svn-fe -d preimage clear.readpreimage 9 >actual &&
86 test_cmp empty actual
87'
88
89test_expect_success 'preimage view: right endpoint cannot backtrack' '
90 printf "SVNQ%b%b" "Q\003QQQ" "Q\002QQQ" |
91 q_to_nul >clear.backtrack &&
92 test_must_fail test-svn-fe -d preimage clear.backtrack 14
93'
94
95test_expect_success 'preimage view: left endpoint can advance' '
96 printf "SVNQ%b%b" "Q\003QQQ" "\001\002QQQ" |
97 q_to_nul >clear.preshrink &&
98 printf "SVNQ%b%b" "Q\003QQQ" "\001\001QQQ" |
99 q_to_nul >clear.shrinkbacktrack &&
100 test-svn-fe -d preimage clear.preshrink 14 >actual &&
101 test_must_fail test-svn-fe -d preimage clear.shrinkbacktrack 14 &&
102 test_cmp empty actual
103'
104
105test_expect_success 'preimage view: offsets compared by value' '
106 printf "SVNQ%b%b" "\001\001QQQ" "\0200Q\003QQQ" |
107 q_to_nul >clear.noisybacktrack &&
108 printf "SVNQ%b%b" "\001\001QQQ" "\0200\001\002QQQ" |
109 q_to_nul >clear.noisyadvance &&
110 test_must_fail test-svn-fe -d preimage clear.noisybacktrack 15 &&
111 test-svn-fe -d preimage clear.noisyadvance 15 &&
112 test_cmp empty actual
113'
114
115test_expect_success 'preimage view: reject truncated preimage' '
116 printf "SVNQ%b" "\010QQQQ" | q_to_nul >clear.lateemptyread &&
117 printf "SVNQ%b" "\010\001QQQ" | q_to_nul >clear.latenonemptyread &&
118 printf "SVNQ%b" "\001\010QQQ" | q_to_nul >clear.longread &&
119 test_must_fail test-svn-fe -d preimage clear.lateemptyread 9 &&
120 test_must_fail test-svn-fe -d preimage clear.latenonemptyread 9 &&
121 test_must_fail test-svn-fe -d preimage clear.longread 9
122'
123
124test_expect_success 'inline data' '
125 printf "SVNQ%b%s%b%s" "QQQQ\003" "bar" "QQQQ\001" "x" |
126 q_to_nul >inline.clear &&
127 test-svn-fe -d preimage inline.clear 18 >actual &&
128 test_cmp empty actual
129'
130
131test_expect_success 'reject truncated inline data' '
132 printf "SVNQ%b%s" "QQQQ\003" "b" | q_to_nul >inline.trunc &&
133 test_must_fail test-svn-fe -d preimage inline.trunc 10
134'
135
136test_done