Index: third_party/sqlite/sqlite-src-3080704/test/eval.test |
diff --git a/third_party/sqlite/sqlite-src-3080704/test/eval.test b/third_party/sqlite/sqlite-src-3080704/test/eval.test |
new file mode 100644 |
index 0000000000000000000000000000000000000000..360d158f3c8a4b0bdbea627967d22a76b8c4b0fc |
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+# 2008 July 11 |
+# |
+# 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. |
+# |
+# This file experiments with recursion using the "test_eval()" SQL function |
+# in order to make sure that SQLite is reentrant. |
+# |
+# $Id: eval.test,v 1.2 2008/10/13 10:37:50 danielk1977 Exp $ |
+ |
+set testdir [file dirname $argv0] |
+source $testdir/tester.tcl |
+ |
+# Create a table to work with. |
+# |
+do_test eval-1.1 { |
+ execsql { |
+ CREATE TABLE t1(x INTEGER PRIMARY KEY); |
+ INSERT INTO t1 VALUES(1); |
+ INSERT INTO t1 VALUES(2); |
+ INSERT INTO t1 SELECT x+2 FROM t1; |
+ INSERT INTO t1 SELECT x+4 FROM t1; |
+ INSERT INTO t1 SELECT x+8 FROM t1; |
+ INSERT INTO t1 SELECT x+16 FROM t1; |
+ INSERT INTO t1 SELECT x+32 FROM t1; |
+ INSERT INTO t1 SELECT x+64 FROM t1; |
+ INSERT INTO t1 SELECT x+128 FROM t1; |
+ INSERT INTO t1 SELECT x+256 FROM t1; |
+ SELECT count(*), max(x) FROM t1; |
+ } |
+} {512 512} |
+do_test eval-1.2 { |
+ execsql { |
+ SELECT x, test_eval('SELECT max(x) FROM t1 WHERE x<' || x) FROM t1 LIMIT 5 |
+ } |
+} {1 {} 2 1 3 2 4 3 5 4} |
+ |
+# Delete a row out from under a read cursor in the middle of |
+# collecting the arguments for a single row in a result set. |
+# Verify that subsequent rows come out as NULL. |
+# |
+do_test eval-2.1 { |
+ execsql { |
+ CREATE TABLE t2(x,y); |
+ INSERT INTO t2 SELECT x, x+1 FROM t1 WHERE x<5; |
+ SELECT x, test_eval('DELETE FROM t2 WHERE x='||x), y FROM t2; |
+ } |
+} {1 {} {} 2 {} {} 3 {} {} 4 {} {}} |
+do_test eval-2.2 { |
+ execsql { |
+ SELECT * FROM t2 |
+ } |
+} {} |
+do_test eval-2.3 { |
+ execsql { |
+ INSERT INTO t2 SELECT x, x+1 FROM t1 WHERE x<5; |
+ SELECT x, test_eval('DELETE FROM t2 WHERE x='||x), y FROM t2 |
+ ORDER BY rowid DESC; |
+ } |
+} {4 {} {} 3 {} {} 2 {} {} 1 {} {}} |
+do_test eval-2.4 { |
+ execsql { |
+ SELECT * FROM t2 |
+ } |
+} {} |
+ |
+# Modify a row while it is being read. |
+# |
+do_test eval-3.1 { |
+ execsql { |
+ INSERT INTO t2 SELECT x, x+1 FROM t1 WHERE x<5; |
+ SELECT x, test_eval('UPDATE t2 SET y=y+100 WHERE x='||x), y FROM t2; |
+ } |
+} {1 {} 102 2 {} 103 3 {} 104 4 {} 105} |
+ |
+do_test eval-4.1 { |
+ execsql { SELECT test_eval('SELECT "abcdefghij"') } |
+} {abcdefghij} |
+ |
+finish_test |