wasCSharpSQLite – Blame information for rev 4

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1 office 1 # 2002 May 24
2 #
3 # The author disclaims copyright to this source code. In place of
4 # a legal notice, here is a blessing:
5 #
6 # May you do good and not evil.
7 # May you find forgiveness for yourself and forgive others.
8 # May you share freely, never taking more than you give.
9 #
10 #***********************************************************************
11 # This file implements regression tests for SQLite library. The focus of
12 # this file is testing the SQLite routines used for converting between the
13 # various suported unicode encodings (UTF-8, UTF-16, UTF-16le and
14 # UTF-16be).
15 #
16 # $Id: enc.test,v 1.7 2007/05/23 16:23:09 danielk1977 Exp $
17  
18 set testdir [file dirname $argv0]
19 source $testdir/tester.tcl
20  
21 # Skip this test if the build does not support multiple encodings.
22 #
23 ifcapable {!utf16} {
24 finish_test
25 return
26 }
27  
28 proc do_bincmp_test {testname got expect} {
29 binary scan $expect \c* expectvals
30 binary scan $got \c* gotvals
31 do_test $testname [list set dummy $gotvals] $expectvals
32 }
33  
34 # $utf16 is a UTF-16 encoded string. Swap each pair of bytes around
35 # to change the byte-order of the string.
36 proc swap_byte_order {utf16} {
37 binary scan $utf16 \c* ints
38  
39 foreach {a b} $ints {
40 lappend ints2 $b
41 lappend ints2 $a
42 }
43  
44 return [binary format \c* $ints2]
45 }
46  
47 #
48 # Test that the SQLite routines for converting between UTF encodings
49 # produce the same results as their TCL counterparts.
50 #
51 # $testname is the prefix to be used for the test names.
52 # $str is a string to use for testing (encoded in UTF-8, as normal for TCL).
53 #
54 # The test procedure is:
55 # 1. Convert the string from UTF-8 to UTF-16le and check that the TCL and
56 # SQLite routines produce the same results.
57 #
58 # 2. Convert the string from UTF-8 to UTF-16be and check that the TCL and
59 # SQLite routines produce the same results.
60 #
61 # 3. Use the SQLite routines to convert the native machine order UTF-16
62 # representation back to the original UTF-8. Check that the result
63 # matches the original representation.
64 #
65 # 4. Add a byte-order mark to each of the UTF-16 representations and
66 # check that the SQLite routines can convert them back to UTF-8. For
67 # byte-order mark info, refer to section 3.10 of the unicode standard.
68 #
69 # 5. Take the byte-order marked UTF-16 strings from step 4 and ensure
70 # that SQLite can convert them both to native byte order UTF-16
71 # strings, sans BOM.
72 #
73 # Coverage:
74 #
75 # sqlite_utf8to16be (step 2)
76 # sqlite_utf8to16le (step 1)
77 # sqlite_utf16to8 (steps 3, 4)
78 # sqlite_utf16to16le (step 5)
79 # sqlite_utf16to16be (step 5)
80 #
81 proc test_conversion {testname str} {
82  
83 # Step 1.
84 set utf16le_sqlite3 [test_translate $str UTF8 UTF16LE]
85 set utf16le_tcl [encoding convertto unicode $str]
86 append utf16le_tcl "\x00\x00"
87 if { $::tcl_platform(byteOrder)!="littleEndian" } {
88 set utf16le_tcl [swap_byte_order $utf16le_tcl]
89 }
90 do_bincmp_test $testname.1 $utf16le_sqlite3 $utf16le_tcl
91 set utf16le $utf16le_tcl
92  
93 # Step 2.
94 set utf16be_sqlite3 [test_translate $str UTF8 UTF16BE]
95 set utf16be_tcl [encoding convertto unicode $str]
96 append utf16be_tcl "\x00\x00"
97 if { $::tcl_platform(byteOrder)=="littleEndian" } {
98 set utf16be_tcl [swap_byte_order $utf16be_tcl]
99 }
100 do_bincmp_test $testname.2 $utf16be_sqlite3 $utf16be_tcl
101 set utf16be $utf16be_tcl
102  
103 # Step 3.
104 if { $::tcl_platform(byteOrder)=="littleEndian" } {
105 set utf16 $utf16le
106 } else {
107 set utf16 $utf16be
108 }
109 set utf8_sqlite3 [test_translate $utf16 UTF16 UTF8]
110 do_bincmp_test $testname.3 $utf8_sqlite3 [binarize $str]
111  
112 # Step 4 (little endian).
113 append utf16le_bom "\xFF\xFE" $utf16le
114 set utf8_sqlite3 [test_translate $utf16le_bom UTF16 UTF8 1]
115 do_bincmp_test $testname.4.le $utf8_sqlite3 [binarize $str]
116  
117 # Step 4 (big endian).
118 append utf16be_bom "\xFE\xFF" $utf16be
119 set utf8_sqlite3 [test_translate $utf16be_bom UTF16 UTF8]
120 do_bincmp_test $testname.4.be $utf8_sqlite3 [binarize $str]
121  
122 # Step 5 (little endian to little endian).
123 set utf16_sqlite3 [test_translate $utf16le_bom UTF16LE UTF16LE]
124 do_bincmp_test $testname.5.le.le $utf16_sqlite3 $utf16le
125  
126 # Step 5 (big endian to big endian).
127 set utf16_sqlite3 [test_translate $utf16be_bom UTF16 UTF16BE]
128 do_bincmp_test $testname.5.be.be $utf16_sqlite3 $utf16be
129  
130 # Step 5 (big endian to little endian).
131 set utf16_sqlite3 [test_translate $utf16be_bom UTF16 UTF16LE]
132 do_bincmp_test $testname.5.be.le $utf16_sqlite3 $utf16le
133  
134 # Step 5 (little endian to big endian).
135 set utf16_sqlite3 [test_translate $utf16le_bom UTF16 UTF16BE]
136 do_bincmp_test $testname.5.le.be $utf16_sqlite3 $utf16be
137 }
138  
139 translate_selftest
140  
141 test_conversion enc-1 "hello world"
142 test_conversion enc-2 "sqlite"
143 test_conversion enc-3 ""
144 test_conversion enc-X "\u0100"
145 test_conversion enc-4 "\u1234"
146 test_conversion enc-5 "\u4321abc"
147 test_conversion enc-6 "\u4321\u1234"
148 test_conversion enc-7 [string repeat "abcde\u00EF\u00EE\uFFFCabc" 100]
149 test_conversion enc-8 [string repeat "\u007E\u007F\u0080\u0081" 100]
150 test_conversion enc-9 [string repeat "\u07FE\u07FF\u0800\u0801\uFFF0" 100]
151 test_conversion enc-10 [string repeat "\uE000" 100]
152  
153 proc test_collate {enc zLeft zRight} {
154 return [string compare $zLeft $zRight]
155 }
156 add_test_collate $::DB 0 0 1
157 do_test enc-11.1 {
158 execsql {
159 CREATE TABLE ab(a COLLATE test_collate, b);
160 INSERT INTO ab VALUES(CAST (X'C388' AS TEXT), X'888800');
161 INSERT INTO ab VALUES(CAST (X'C0808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808388' AS TEXT), X'888800');
162 CREATE INDEX ab_i ON ab(a, b);
163 }
164 } {}
165 do_test enc-11.2 {
166 set cp200 "\u00C8"
167 execsql {
168 SELECT count(*) FROM ab WHERE a = $::cp200;
169 }
170 } {2}
171  
172 finish_test