3 # The author disclaims copyright to this source code. In place of
4 # a legal notice, here is a blessing:
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.
10 #***********************************************************************
13 set testdir [file dirname $argv0]
14 source $testdir/tester.tcl
15 set testprefix e_blobwrite
22 #--------------------------------------------------------------------------
23 # EVIDENCE-OF: R-62898-22698 This function is used to write data into an
24 # open BLOB handle from a caller-supplied buffer. N bytes of data are
25 # copied from the buffer Z into the open BLOB, starting at offset
28 set dots [string repeat . 40]
30 CREATE TABLE t1(a INTEGER PRIMARY KEY, t TEXT);
31 INSERT INTO t1 VALUES(-1, $dots);
32 INSERT INTO t1 VALUES(-2, $dots);
33 INSERT INTO t1 VALUES(-3, $dots);
34 INSERT INTO t1 VALUES(-4, $dots);
35 INSERT INTO t1 VALUES(-5, $dots);
36 INSERT INTO t1 VALUES(-6, $dots);
39 proc blob_write_test {tn id iOffset blob nData final} {
40 sqlite3_blob_open db main t1 t $id 1 B
42 # EVIDENCE-OF: R-45864-01884 On success, sqlite3_blob_write() returns
43 # SQLITE_OK. Otherwise, an error code or an extended error code is
46 # This block tests the SQLITE_OK case in the requirement above (the
47 # Tcl sqlite3_blob_write() wrapper uses an empty string in place of
48 # "SQLITE_OK"). The error cases are tested by the "blob_write_error_test"
51 set res [sqlite3_blob_write $B $iOffset $blob $nData]
52 uplevel [list do_test $tn.1 [list set {} $res] {}]
55 uplevel [list do_execsql_test $tn.3 "SELECT t FROM t1 WHERE a=$id" $final]
58 set blob "0123456789012345678901234567890123456789"
59 blob_write_test 1.1 -1 0 $blob 10 { 0123456789.............................. }
60 blob_write_test 1.2 -2 8 $blob 10 { ........0123456789...................... }
61 blob_write_test 1.3 -3 8 $blob 1 { ........0............................... }
62 blob_write_test 1.4 -4 18 $blob 22 { ..................0123456789012345678901 }
63 blob_write_test 1.5 -5 18 $blob 0 { ........................................ }
64 blob_write_test 1.6 -6 0 $blob 40 { 0123456789012345678901234567890123456789 }
67 proc blob_write_error_test {tn B iOffset blob nData errcode errmsg} {
69 # In cases where the underlying sqlite3_blob_write() function returns
70 # SQLITE_OK, the Tcl wrapper returns an empty string. If the underlying
71 # function returns an error, the Tcl wrapper throws an exception with
72 # the error code as the Tcl exception message.
74 if {$errcode=="SQLITE_OK"} {
82 set cmd [list sqlite3_blob_write $B $iOffset $blob $nData]
83 uplevel [list do_test $tn.1 [subst -nocommands {
84 list [catch {$cmd} msg] [set msg]
85 }] [list $isError $ret]]
87 # EVIDENCE-OF: R-34782-18311 Unless SQLITE_MISUSE is returned, this
88 # function sets the database connection error code and message
89 # accessible via sqlite3_errcode() and sqlite3_errmsg() and related
92 if {$errcode == "SQLITE_MISUSE"} { error "test proc misuse!" }
93 uplevel [list do_test $tn.2 [list sqlite3_errcode db] $errcode]
94 uplevel [list do_test $tn.3 [list sqlite3_errmsg db] $errmsg]
98 CREATE TABLE t2(a TEXT, b INTEGER PRIMARY KEY);
99 INSERT INTO t2 VALUES($dots, 43);
100 INSERT INTO t2 VALUES($dots, 44);
101 INSERT INTO t2 VALUES($dots, 45);
104 # EVIDENCE-OF: R-63341-57517 If the BLOB handle passed as the first
105 # argument was not opened for writing (the flags parameter to
106 # sqlite3_blob_open() was zero), this function returns SQLITE_READONLY.
108 sqlite3_blob_open db main t2 a 43 0 B
109 blob_write_error_test 2.1 $B 0 $blob 10 \
110 SQLITE_READONLY {attempt to write a readonly database}
111 sqlite3_blob_close $B
113 # EVIDENCE-OF: R-29804-27366 If offset iOffset is less than N bytes from
114 # the end of the BLOB, SQLITE_ERROR is returned and no data is written.
116 sqlite3_blob_open db main t2 a 44 3 B
117 blob_write_error_test 2.2.1 $B 31 $blob 10 \
118 SQLITE_ERROR {SQL logic error}
120 # Make a successful write to the blob handle. This shows that the
121 # sqlite3_errcode() and sqlite3_errmsg() values are set even if the
122 # blob_write() call succeeds (see requirement in the [blob_write_error_test]
124 blob_write_error_test 2.2.1 $B 30 $blob 10 SQLITE_OK {not an error}
126 # EVIDENCE-OF: R-58570-38916 If N or iOffset are less than zero
127 # SQLITE_ERROR is returned and no data is written.
129 blob_write_error_test 2.2.2 $B 31 $blob -1 \
130 SQLITE_ERROR {SQL logic error}
131 blob_write_error_test 2.2.3 $B 20 $blob 10 SQLITE_OK {not an error}
132 blob_write_error_test 2.2.4 $B -1 $blob 10 \
133 SQLITE_ERROR {SQL logic error}
134 sqlite3_blob_close $B
136 # EVIDENCE-OF: R-20958-54138 An attempt to write to an expired BLOB
137 # handle fails with an error code of SQLITE_ABORT.
140 sqlite3_blob_open db main t2 a 43 0 B
141 execsql { DELETE FROM t2 WHERE b=43 }
143 blob_write_error_test 2.3.1 $B 5 $blob 5 \
144 SQLITE_ABORT {query aborted}
146 execsql { SELECT 1, 2, 3 }
149 blob_write_error_test 2.3.3 $B 5 $blob 5 \
150 SQLITE_ABORT {query aborted}
151 sqlite3_blob_close $B
153 # EVIDENCE-OF: R-08382-59936 Writes to the BLOB that occurred before the
154 # BLOB handle expired are not rolled back by the expiration of the
155 # handle, though of course those changes might have been overwritten by
156 # the statement that expired the BLOB handle or by other independent
159 # 3.1.*: not rolled back,
160 # 3.2.*: overwritten.
162 do_execsql_test 3.0 {
163 CREATE TABLE t3(i INTEGER PRIMARY KEY, j TEXT, k TEXT);
164 INSERT INTO t3 VALUES(1, $dots, $dots);
165 INSERT INTO t3 VALUES(2, $dots, $dots);
166 SELECT * FROM t3 WHERE i=1;
169 ........................................
170 ........................................
172 sqlite3_blob_open db main t3 j 1 1 B
173 blob_write_error_test 3.1.1 $B 5 $blob 10 SQLITE_OK {not an error}
174 do_execsql_test 3.1.2 {
175 UPDATE t3 SET k = 'xyz' WHERE i=1;
176 SELECT * FROM t3 WHERE i=1;
178 1 .....0123456789......................... xyz
180 blob_write_error_test 3.1.3 $B 15 $blob 10 \
181 SQLITE_ABORT {query aborted}
182 sqlite3_blob_close $B
183 do_execsql_test 3.1.4 {
184 SELECT * FROM t3 WHERE i=1;
186 1 .....0123456789......................... xyz
189 sqlite3_blob_open db main t3 j 2 1 B
190 blob_write_error_test 3.2.1 $B 5 $blob 10 SQLITE_OK {not an error}
191 do_execsql_test 3.2.2 {
192 UPDATE t3 SET j = 'xyz' WHERE i=2;
193 SELECT * FROM t3 WHERE i=2;
195 2 xyz ........................................
197 blob_write_error_test 3.2.3 $B 15 $blob 10 \
198 SQLITE_ABORT {query aborted}
199 sqlite3_blob_close $B
200 do_execsql_test 3.2.4 {
201 SELECT * FROM t3 WHERE i=2;
203 2 xyz ........................................