Index: third_party/sqlite/sqlite-src-3080704/test/descidx3.test |
diff --git a/third_party/sqlite/sqlite-src-3080704/test/descidx3.test b/third_party/sqlite/sqlite-src-3080704/test/descidx3.test |
new file mode 100644 |
index 0000000000000000000000000000000000000000..c375acc705fbffe8161cd21a9a7c1cf5e2968238 |
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+++ b/third_party/sqlite/sqlite-src-3080704/test/descidx3.test |
@@ -0,0 +1,154 @@ |
+# 2006 January 02 |
+# |
+# The author disclaims copyright to this source code. In place of |
+# a legal notice, here is a blessing: |
+# |
+# May you do good and not evil. |
+# May you find forgiveness for yourself and forgive others. |
+# May you share freely, never taking more than you give. |
+# |
+#************************************************************************* |
+# This file implements regression tests for SQLite library. The |
+# focus of this script is descending indices. |
+# |
+# $Id: descidx3.test,v 1.6 2008/03/19 00:21:31 drh Exp $ |
+# |
+ |
+set testdir [file dirname $argv0] |
+source $testdir/tester.tcl |
+ |
+# Do not use a codec for tests in this file, as the database file is |
+# manipulated directly using tcl scripts (using the [hexio_write] command). |
+# |
+do_not_use_codec |
+ |
+ifcapable !bloblit { |
+ finish_test |
+ return |
+} |
+db eval {PRAGMA legacy_file_format=OFF} |
+ |
+# This procedure sets the value of the file-format in file 'test.db' |
+# to $newval. Also, the schema cookie is incremented. |
+# |
+proc set_file_format {newval} { |
+ hexio_write test.db 44 [hexio_render_int32 $newval] |
+ set schemacookie [hexio_get_int [hexio_read test.db 40 4]] |
+ incr schemacookie |
+ hexio_write test.db 40 [hexio_render_int32 $schemacookie] |
+ return {} |
+} |
+ |
+# This procedure returns the value of the file-format in file 'test.db'. |
+# |
+proc get_file_format {{fname test.db}} { |
+ return [hexio_get_int [hexio_read $fname 44 4]] |
+} |
+ |
+# Verify that the file format starts as 4. |
+# |
+do_test descidx3-1.1 { |
+ execsql { |
+ CREATE TABLE t1(i INTEGER PRIMARY KEY,a,b,c,d); |
+ CREATE INDEX t1i1 ON t1(a DESC, b ASC, c DESC); |
+ CREATE INDEX t1i2 ON t1(b DESC, c ASC, d DESC); |
+ } |
+ get_file_format |
+} {4} |
+ |
+# Put some information in the table and verify that the descending |
+# index actually works. |
+# |
+do_test descidx3-2.1 { |
+ execsql { |
+ INSERT INTO t1 VALUES(1, NULL, NULL, NULL, NULL); |
+ INSERT INTO t1 VALUES(2, 2, 2, 2, 2); |
+ INSERT INTO t1 VALUES(3, 3, 3, 3, 3); |
+ INSERT INTO t1 VALUES(4, 2.5, 2.5, 2.5, 2.5); |
+ INSERT INTO t1 VALUES(5, -5, -5, -5, -5); |
+ INSERT INTO t1 VALUES(6, 'six', 'six', 'six', 'six'); |
+ INSERT INTO t1 VALUES(7, x'77', x'77', x'77', x'77'); |
+ INSERT INTO t1 VALUES(8, 'eight', 'eight', 'eight', 'eight'); |
+ INSERT INTO t1 VALUES(9, x'7979', x'7979', x'7979', x'7979'); |
+ SELECT count(*) FROM t1; |
+ } |
+} 9 |
+do_test descidx3-2.2 { |
+ execsql { |
+ SELECT i FROM t1 ORDER BY a; |
+ } |
+} {1 5 2 4 3 8 6 7 9} |
+do_test descidx3-2.3 { |
+ execsql { |
+ SELECT i FROM t1 ORDER BY a DESC; |
+ } |
+} {9 7 6 8 3 4 2 5 1} |
+ |
+# The "natural" order for the index is decreasing |
+do_test descidx3-2.4 { |
+ execsql { |
+ SELECT i FROM t1 WHERE a<=x'7979'; |
+ } |
+} {9 7 6 8 3 4 2 5} |
+do_test descidx3-2.5 { |
+ execsql { |
+ SELECT i FROM t1 WHERE a>-99; |
+ } |
+} {9 7 6 8 3 4 2 5} |
+ |
+# Even when all values of t1.a are the same, sorting by A returns |
+# the rows in reverse order because this the natural order of the |
+# index. |
+# |
+do_test descidx3-3.1 { |
+ execsql { |
+ UPDATE t1 SET a=1; |
+ SELECT i FROM t1 ORDER BY a; |
+ } |
+} {9 7 6 8 3 4 2 5 1} |
+do_test descidx3-3.2 { |
+ execsql { |
+ SELECT i FROM t1 WHERE a=1 AND b>0 AND b<'zzz' |
+ } |
+} {2 4 3 8 6} |
+do_test descidx3-3.3 { |
+ execsql { |
+ SELECT i FROM t1 WHERE b>0 AND b<'zzz' |
+ } |
+} {6 8 3 4 2} |
+do_test descidx3-3.4 { |
+ execsql { |
+ SELECT i FROM t1 WHERE a=1 AND b>-9999 AND b<x'ffffffff' |
+ } |
+} {5 2 4 3 8 6 7 9} |
+do_test descidx3-3.5 { |
+ execsql { |
+ SELECT i FROM t1 WHERE b>-9999 AND b<x'ffffffff' |
+ } |
+} {9 7 6 8 3 4 2 5} |
+ |
+ifcapable subquery { |
+ # If the subquery capability is not compiled in to the binary, then |
+ # the IN(...) operator is not available. Hence these tests cannot be |
+ # run. |
+ do_test descidx3-4.1 { |
+ lsort [execsql { |
+ UPDATE t1 SET a=2 WHERE i<6; |
+ SELECT i FROM t1 WHERE a IN (1,2) AND b>0 AND b<'zzz'; |
+ }] |
+ } {2 3 4 6 8} |
+ do_test descidx3-4.2 { |
+ execsql { |
+ UPDATE t1 SET a=1; |
+ SELECT i FROM t1 WHERE a IN (1,2) AND b>0 AND b<'zzz'; |
+ } |
+ } {2 4 3 8 6} |
+ do_test descidx3-4.3 { |
+ execsql { |
+ UPDATE t1 SET b=2; |
+ SELECT i FROM t1 WHERE a IN (1,2) AND b>0 AND b<'zzz'; |
+ } |
+ } {9 7 6 8 3 4 2 5 1} |
+} |
+ |
+finish_test |