[sql] Import SQLite 3.17.0.

third_party/sqlite/src/ext/session/sessionG.test

+# 2016 March 30
+#
+# 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 the sessions module.
+# Specifically, it tests that UNIQUE constraints are dealt with correctly.
+#
+
+
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+set testprefix sessionG
+
+
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_test 1.0 {
+  do_common_sql {
+    CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, 'two');
+    INSERT INTO t1 VALUES(3, 'three');
+  }
+  do_then_apply_sql {
+    DELETE FROM t1 WHERE a=1;
+    INSERT INTO t1 VALUES(4, 'one');
+  }
+  compare_db db db2
+} {}
+
+do_test 1.1 {
+  do_then_apply_sql {
+    DELETE FROM t1 WHERE a=4;
+    INSERT INTO t1 VALUES(1, 'one');
+  }
+  compare_db db db2
+} {}
+
+do_test 1.2 {
+  execsql { INSERT INTO t1 VALUES(5, 'five') } db2
+  do_then_apply_sql {
+    INSERT INTO t1 VALUES(11, 'eleven');
+    INSERT INTO t1 VALUES(12, 'five');
+  }
+  execsql { SELECT * FROM t1 } db2
+} {2 two 3 three 1 one 5 five 11 eleven}
+
+do_test 1.3 {
+  execsql { SELECT * FROM t1 }
+} {2 two 3 three 1 one 11 eleven 12 five}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+db2 close
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_test 2.1 {
+  do_common_sql {
+    CREATE TABLE t1(a PRIMARY KEY, b UNIQUE, c UNIQUE);
+    INSERT INTO t1 VALUES(1, 1, 1);
+    INSERT INTO t1 VALUES(2, 2, 2);
+    INSERT INTO t1 VALUES(3, 3, 3);
+  }
+} {}
+
+do_test 2.2.1 {
+  # It is not possible to apply the changeset generated by the following
+  # SQL, as none of the three updated rows may be updated as part of the
+  # first pass.
+  do_then_apply_sql {
+    UPDATE t1 SET b=0 WHERE a=1;
+    UPDATE t1 SET b=1 WHERE a=2;
+    UPDATE t1 SET b=2 WHERE a=3;
+    UPDATE t1 SET b=3 WHERE a=1;
+  }
+  db2 eval { SELECT a, b FROM t1 }
+} {1 1 2 2 3 3}
+do_test 2.2.2 { db eval { SELECT a, b FROM t1 } } {1 3 2 1 3 2}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+db2 close
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_test 3.1 {
+  do_common_sql {
+    CREATE TABLE t1(a PRIMARY KEY, b UNIQUE, c UNIQUE);
+    INSERT INTO t1 VALUES(1, 1, 1);
+    INSERT INTO t1 VALUES(2, 2, 2);
+    INSERT INTO t1 VALUES(3, 3, 3);
+  }
+} {}
+
+do_test 3.3 {
+  do_then_apply_sql {
+    UPDATE t1 SET b=4 WHERE a=3;
+    UPDATE t1 SET b=3 WHERE a=2;
+    UPDATE t1 SET b=2 WHERE a=1;
+  }
+  compare_db db db2
+} {}
+
+do_test 3.4 {
+  do_then_apply_sql {
+    UPDATE t1 SET b=1 WHERE a=1;
+    UPDATE t1 SET b=2 WHERE a=2;
+    UPDATE t1 SET b=3 WHERE a=3;
+  }
+  compare_db db db2
+} {}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+db2 close
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_test 4.1 {
+  do_common_sql {
+    CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+    INSERT INTO t1 VALUES(1, 1);
+    INSERT INTO t1 VALUES(2, 2);
+    INSERT INTO t1 VALUES(3, 3);
+
+    CREATE TABLE t2(a PRIMARY KEY, b UNIQUE);
+    INSERT INTO t2 VALUES(1, 1);
+    INSERT INTO t2 VALUES(2, 2);
+    INSERT INTO t2 VALUES(3, 3);
+  }
+} {}
+
+do_test 4.2 {
+  do_then_apply_sql {
+    UPDATE t1 SET b=4 WHERE a=3;
+    UPDATE t1 SET b=3 WHERE a=2;
+    UPDATE t1 SET b=2 WHERE a=1;
+
+    UPDATE t2 SET b=0 WHERE a=1;
+    UPDATE t2 SET b=1 WHERE a=2;
+    UPDATE t2 SET b=2 WHERE a=3;
+  }
+  compare_db db db2
+} {}
+
+do_test 4.3 {
+  do_then_apply_sql {
+    UPDATE t1 SET b=1 WHERE a=1;
+    UPDATE t1 SET b=2 WHERE a=2;
+    UPDATE t1 SET b=3 WHERE a=3;
+
+    UPDATE t2 SET b=3 WHERE a=3;
+    UPDATE t2 SET b=2 WHERE a=2;
+    UPDATE t2 SET b=1 WHERE a=1;
+  }
+  compare_db db db2
+} {}
+
+finish_test
+