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+# 2001 September 15
+#
+# 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 page cache subsystem.
+#
+# $Id: collate3.test,v 1.11 2005/09/08 01:58:43 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+#
+# Tests are organised as follows:
+#
+# collate3.1.* - Errors related to unknown collation sequences.
+# collate3.2.* - Errors related to undefined collation sequences.
+# collate3.3.* - Writing to a table that has an index with an undefined c.s.
+# collate3.4.* - Misc errors.
+# collate3.5.* - Collation factory.
+#
+
+#
+# These tests ensure that when a user executes a statement with an 
+# unknown collation sequence an error is returned.
+#
+do_test collate3-1.0 {
+  execsql {
+    CREATE TABLE collate3t1(c1);
+  }
+} {}
+do_test collate3-1.1 {
+  catchsql {
+    SELECT * FROM collate3t1 ORDER BY 1 collate garbage;
+  }
+} {1 {no such collation sequence: garbage}}
+do_test collate3-1.2 {
+  catchsql {
+    CREATE TABLE collate3t2(c1 collate garbage);
+  }
+} {1 {no such collation sequence: garbage}}
+do_test collate3-1.3 {
+  catchsql {
+    CREATE INDEX collate3i1 ON collate3t1(c1 COLLATE garbage);
+  }
+} {1 {no such collation sequence: garbage}}
+
+execsql {
+  DROP TABLE collate3t1;
+}
+
+#
+# Create a table with a default collation sequence, then close
+# and re-open the database without re-registering the collation
+# sequence. Then make sure the library stops us from using
+# the collation sequence in:
+# * an explicitly collated ORDER BY
+# * an ORDER BY that uses the default collation sequence
+# * an expression (=)
+# * a CREATE TABLE statement
+# * a CREATE INDEX statement that uses a default collation sequence
+# * a GROUP BY that uses the default collation sequence
+# * a SELECT DISTINCT that uses the default collation sequence
+# * Compound SELECTs that uses the default collation sequence
+# * An ORDER BY on a compound SELECT with an explicit ORDER BY.
+#
+do_test collate3-2.0 {
+  db collate string_compare {string compare}
+  execsql {
+    CREATE TABLE collate3t1(c1 COLLATE string_compare, c2);
+  }
+  db close
+  sqlite3 db test.db
+  expr 0
+} 0
+do_test collate3-2.1 {
+  catchsql {
+    SELECT * FROM collate3t1 ORDER BY 1 COLLATE string_compare;
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-2.2 {
+  catchsql {
+    SELECT * FROM collate3t1 ORDER BY c1;
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-2.3 {
+  catchsql {
+    SELECT * FROM collate3t1 WHERE c1 = 'xxx';
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-2.4 {
+  catchsql {
+    CREATE TABLE collate3t2(c1 COLLATE string_compare);
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-2.5 {
+  catchsql {
+    CREATE INDEX collate3t1_i1 ON collate3t1(c1);
+  }
+} {1 {no such collation sequence: string_compare}}
+do_test collate3-2.6 {
+  catchsql {
+    SELECT * FROM collate3t1;
+  }
+} {0 {}}
+do_test collate3-2.7.1 {
+  catchsql {
+    SELECT count(*) FROM collate3t1 GROUP BY c1;
+  }
+} {1 {no such collation sequence: string_compare}} 
+# do_test collate3-2.7.2 {
+#   catchsql {
+#     SELECT * FROM collate3t1 GROUP BY c1;
+#   }
+# } {1 {GROUP BY may only be used on aggregate queries}}
+do_test collate3-2.7.2 {
+  catchsql {
+    SELECT * FROM collate3t1 GROUP BY c1;
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-2.8 {
+  catchsql {
+    SELECT DISTINCT c1 FROM collate3t1;
+  }
+} {1 {no such collation sequence: string_compare}} 
+
+ifcapable compound {
+  do_test collate3-2.9 {
+    catchsql {
+      SELECT c1 FROM collate3t1 UNION SELECT c1 FROM collate3t1;
+    }
+  } {1 {no such collation sequence: string_compare}} 
+  do_test collate3-2.10 {
+    catchsql {
+      SELECT c1 FROM collate3t1 EXCEPT SELECT c1 FROM collate3t1;
+    }
+  } {1 {no such collation sequence: string_compare}} 
+  do_test collate3-2.11 {
+    catchsql {
+      SELECT c1 FROM collate3t1 INTERSECT SELECT c1 FROM collate3t1;
+    }
+  } {1 {no such collation sequence: string_compare}} 
+  do_test collate3-2.12 {
+    catchsql {
+      SELECT c1 FROM collate3t1 UNION ALL SELECT c1 FROM collate3t1;
+    }
+  } {0 {}}
+  do_test collate3-2.13 {
+btree_breakpoint
+    catchsql {
+      SELECT 10 UNION ALL SELECT 20 ORDER BY 1 COLLATE string_compare;
+    }
+  } {1 {no such collation sequence: string_compare}} 
+  do_test collate3-2.14 {
+    catchsql {
+      SELECT 10 INTERSECT SELECT 20 ORDER BY 1 COLLATE string_compare;
+    }
+  } {1 {no such collation sequence: string_compare}} 
+  do_test collate3-2.15 {
+    catchsql {
+      SELECT 10 EXCEPT SELECT 20 ORDER BY 1 COLLATE string_compare;
+    }
+  } {1 {no such collation sequence: string_compare}} 
+  do_test collate3-2.16 {
+    catchsql {
+      SELECT 10 UNION SELECT 20 ORDER BY 1 COLLATE string_compare;
+    }
+  } {1 {no such collation sequence: string_compare}} 
+  do_test collate3-2.17 {
+    catchsql {
+      SELECT c1 FROM collate3t1 UNION ALL SELECT c1 FROM collate3t1 ORDER BY 1;
+    }
+  } {1 {no such collation sequence: string_compare}} 
+} ;# ifcapable compound
+
+#
+# Create an index that uses a collation sequence then close and
+# re-open the database without re-registering the collation
+# sequence. Then check that for the table with the index 
+# * An INSERT fails,
+# * An UPDATE on the column with the index fails,
+# * An UPDATE on a different column succeeds.
+# * A DELETE with a WHERE clause fails
+# * A DELETE without a WHERE clause succeeds
+#
+# Also, ensure that the restrictions tested by collate3-2.* still
+# apply after the index has been created.
+#
+do_test collate3-3.0 {
+  db collate string_compare {string compare}
+  execsql {
+    CREATE INDEX collate3t1_i1 ON collate3t1(c1);
+    INSERT INTO collate3t1 VALUES('xxx', 'yyy');
+  }
+  db close
+  sqlite3 db test.db
+  expr 0
+} 0
+db eval {select * from collate3t1}
+do_test collate3-3.1 {
+  catchsql {
+    INSERT INTO collate3t1 VALUES('xxx', 0);
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-3.2 {
+  catchsql {
+    UPDATE collate3t1 SET c1 = 'xxx';
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-3.3 {
+  catchsql {
+    UPDATE collate3t1 SET c2 = 'xxx';
+  }
+} {0 {}}
+do_test collate3-3.4 {
+  catchsql {
+    DELETE FROM collate3t1 WHERE 1;
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-3.5 {
+  catchsql {
+    SELECT * FROM collate3t1;
+  }
+} {0 {xxx xxx}}
+do_test collate3-3.6 {
+  catchsql {
+    DELETE FROM collate3t1;
+  }
+} {0 {}}
+ifcapable {integrityck} {
+  do_test collate3-3.8 {
+    catchsql {
+      PRAGMA integrity_check
+    }
+  } {1 {no such collation sequence: string_compare}}
+}
+do_test collate3-3.9 {
+  catchsql {
+    SELECT * FROM collate3t1;
+  }
+} {0 {}}
+do_test collate3-3.10 {
+  catchsql {
+    SELECT * FROM collate3t1 ORDER BY 1 COLLATE string_compare;
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-3.11 {
+  catchsql {
+    SELECT * FROM collate3t1 ORDER BY c1;
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-3.12 {
+  catchsql {
+    SELECT * FROM collate3t1 WHERE c1 = 'xxx';
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-3.13 {
+  catchsql {
+    CREATE TABLE collate3t2(c1 COLLATE string_compare);
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-3.14 {
+  catchsql {
+    CREATE INDEX collate3t1_i2 ON collate3t1(c1);
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-3.15 {
+  execsql {
+    DROP TABLE collate3t1;
+  }
+} {}
+
+# Check we can create an index that uses an explicit collation 
+# sequence and then close and re-open the database.
+do_test collate3-4.6 {
+  db collate user_defined "string compare"
+  execsql {
+    CREATE TABLE collate3t1(a, b);
+    INSERT INTO collate3t1 VALUES('hello', NULL);
+    CREATE INDEX collate3i1 ON collate3t1(a COLLATE user_defined);
+  }
+} {}
+do_test collate3-4.7 {
+  db close
+  sqlite3 db test.db
+  catchsql {
+    SELECT * FROM collate3t1 ORDER BY a COLLATE user_defined;
+  }
+} {1 {no such collation sequence: user_defined}}
+do_test collate3-4.8 {
+  db collate user_defined "string compare"
+  catchsql {
+    SELECT * FROM collate3t1 ORDER BY a COLLATE user_defined;
+  }
+} {0 {hello {}}}
+do_test collate3-4.8 {
+  db close
+  lindex [catch {
+    sqlite3 db test.db
+  }] 0
+} {0}
+do_test collate3-4.8 {
+  execsql {
+    DROP TABLE collate3t1;
+  }
+} {}
+
+# Compare strings as numbers.
+proc numeric_compare {lhs rhs} {
+  if {$rhs > $lhs} {
+    set res -1
+  } else {
+    set res [expr ($lhs > $rhs)?1:0]
+  }
+  return $res
+}
+
+# Check we can create a view that uses an explicit collation 
+# sequence and then close and re-open the database.
+ifcapable view {
+do_test collate3-4.9 {
+  db collate user_defined numeric_compare
+  execsql {
+    CREATE TABLE collate3t1(a, b);
+    INSERT INTO collate3t1 VALUES('2', NULL);
+    INSERT INTO collate3t1 VALUES('101', NULL);
+    INSERT INTO collate3t1 VALUES('12', NULL);
+    CREATE VIEW collate3v1 AS SELECT * FROM collate3t1 
+        ORDER BY 1 COLLATE user_defined;
+    SELECT * FROM collate3v1;
+  }
+} {2 {} 12 {} 101 {}}
+do_test collate3-4.10 {
+  db close
+  sqlite3 db test.db
+  catchsql {
+    SELECT * FROM collate3v1;
+  }
+} {1 {no such collation sequence: user_defined}}
+do_test collate3-4.11 {
+  db collate user_defined numeric_compare
+  catchsql {
+    SELECT * FROM collate3v1;
+  }
+} {0 {2 {} 12 {} 101 {}}}
+do_test collate3-4.12 {
+  execsql {
+    DROP TABLE collate3t1;
+  }
+} {}
+} ;# ifcapable view
+
+#
+# Test the collation factory. In the code, the "no such collation sequence"
+# message is only generated in two places. So these tests just test that
+# the collation factory can be called once from each of those points.
+#
+do_test collate3-5.0 {
+  catchsql {
+    CREATE TABLE collate3t1(a);
+    INSERT INTO collate3t1 VALUES(10);
+    SELECT a FROM collate3t1 ORDER BY 1 COLLATE unk;
+  }
+} {1 {no such collation sequence: unk}}
+do_test collate3-5.1 {
+  set ::cfact_cnt 0
+  proc cfact {nm} {
+    db collate $nm {string compare}
+    incr ::cfact_cnt
+  }
+  db collation_needed cfact
+} {}
+do_test collate3-5.2 {
+  catchsql {
+    SELECT a FROM collate3t1 ORDER BY 1 COLLATE unk;
+  }
+} {0 10}
+do_test collate3-5.3 {
+  set ::cfact_cnt
+} {1}
+do_test collate3-5.4 {
+  catchsql {
+    SELECT a FROM collate3t1 ORDER BY 1 COLLATE unk;
+  }
+} {0 10}
+do_test collate3-5.5 {
+  set ::cfact_cnt
+} {1}
+do_test collate3-5.6 {
+  catchsql {
+    SELECT a FROM collate3t1 ORDER BY 1 COLLATE unk;
+  }
+} {0 10}
+do_test collate3-5.7 {
+  execsql {
+    DROP TABLE collate3t1;
+    CREATE TABLE collate3t1(a COLLATE unk);
+  }
+  db close
+  sqlite3 db test.db
+  catchsql {
+    SELECT a FROM collate3t1 ORDER BY 1;
+  }
+} {1 {no such collation sequence: unk}}
+do_test collate3-5.8 {
+  set ::cfact_cnt 0
+  proc cfact {nm} {
+    db collate $nm {string compare}
+    incr ::cfact_cnt
+  }
+  db collation_needed cfact
+  catchsql {
+    SELECT a FROM collate3t1 ORDER BY 1;
+  }
+} {0 {}}
+
+do_test collate3-5.9 {
+  execsql {
+    DROP TABLE collate3t1;
+  }
+} {}
+
+finish_test