[sql] Import reference version of SQLite 3.17..

third_party/sqlite/sqlite-src-3170000/test/collate8.test

+#
+# 2007 June 20
+#
+# 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 making sure collations pass through the
+# unary + operator.
+#
+# 2015-02-09:  Added tests to make sure COLLATE passes through function
+# calls.  Ticket [ca0d20b6cdddec5e81b8d66f89c46a5583b5f6f6].
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test collate8-1.1 {
+  execsql {
+    CREATE TABLE t1(a TEXT COLLATE nocase);
+    INSERT INTO t1 VALUES('aaa');
+    INSERT INTO t1 VALUES('BBB');
+    INSERT INTO t1 VALUES('ccc');
+    INSERT INTO t1 VALUES('DDD');
+    SELECT a FROM t1 ORDER BY a;
+  }
+} {aaa BBB ccc DDD}
+do_test collate8-1.2 {
+  execsql {
+    SELECT rowid FROM t1 WHERE a<'ccc' ORDER BY 1
+  }
+} {1 2}
+do_test collate8-1.3 {
+  execsql {
+    SELECT rowid FROM t1 WHERE a<'ccc' COLLATE binary ORDER BY 1
+  }
+} {1 2 4}
+do_test collate8-1.4 {
+  execsql {
+    SELECT rowid FROM t1 WHERE +a<'ccc' ORDER BY 1
+  }
+} {1 2}
+do_test collate8-1.5 {
+  execsql {
+    SELECT a FROM t1 ORDER BY +a
+  }
+} {aaa BBB ccc DDD}
+do_test collate8-1.11 {
+  execsql {
+    SELECT a AS x FROM t1 ORDER BY "x";
+  }
+} {aaa BBB ccc DDD}
+do_test collate8-1.12 {
+  execsql {
+    SELECT a AS x FROM t1 WHERE x<'ccc' ORDER BY 1
+  }
+} {aaa BBB}
+do_test collate8-1.13 {
+  execsql {
+    SELECT a AS x FROM t1 WHERE x<'ccc' COLLATE binary ORDER BY [x]
+  }
+} {aaa BBB DDD}
+do_test collate8-1.14 {
+  execsql {
+    SELECT a AS x FROM t1 WHERE +x<'ccc' ORDER BY 1
+  }
+} {aaa BBB}
+do_test collate8-1.15 {
+  execsql {
+    SELECT a AS x FROM t1 ORDER BY +x
+  }
+} {aaa BBB ccc DDD}
+
+
+# When a result-set column is aliased into a WHERE clause, make sure the
+# collating sequence logic works correctly.
+#
+do_test collate8-2.1 {
+  execsql {
+    CREATE TABLE t2(a);
+    INSERT INTO t2 VALUES('abc');
+    INSERT INTO t2 VALUES('ABC');
+    SELECT a AS x FROM t2 WHERE x='abc';
+  }
+} {abc}
+do_test collate8-2.2 {
+  execsql {
+    SELECT a AS x FROM t2 WHERE x='abc' COLLATE nocase;
+  }
+} {abc ABC}
+do_test collate8-2.3 {
+  execsql {
+    SELECT a AS x FROM t2 WHERE (x COLLATE nocase)='abc';
+  }
+} {abc ABC}
+do_test collate8-2.4 {
+  execsql {
+    SELECT a COLLATE nocase AS x FROM t2 WHERE x='abc';
+  }
+} {abc ABC}
+do_test collate8-2.5 {
+  execsql {
+    SELECT a COLLATE nocase AS x FROM t2 WHERE (x COLLATE binary)='abc';
+  }
+} {abc}
+do_test collate8-2.6 {
+  execsql {
+    SELECT a COLLATE nocase AS x FROM t2 WHERE x='abc' COLLATE binary;
+  }
+} {abc ABC}
+do_test collate8-2.7 {
+  execsql {
+    SELECT * FROM t2 WHERE (a COLLATE nocase)='abc' COLLATE binary;
+  }
+} {abc ABC}
+do_test collate8-2.8 {
+  execsql {
+    SELECT a COLLATE nocase AS x FROM t2 WHERE 'abc'=x COLLATE binary;
+  }
+} {abc}
+
+# Make sure the COLLATE operator perculates up through function calls
+# and other Expr structures that use the Expr.x.pList field.
+#
+do_execsql_test collate8-3.1 {
+  SELECT 'abc'==('ABC'||'') COLLATE nocase;
+  SELECT 'abc'==('ABC'||'' COLLATE nocase);
+  SELECT 'abc'==('ABC'||('' COLLATE nocase));
+  SELECT 'abc'==('ABC'||upper('' COLLATE nocase));
+} {1 1 1 1}
+do_execsql_test collate8-3.2 {
+  SELECT 'abc'==('ABC'||max('' COLLATE nocase,'' COLLATE binary));
+} {1}
+
+# The COLLATE binary is on the left and so takes precedence
+do_execsql_test collate8-3.3 {
+  SELECT 'abc'==('ABC'||max('' COLLATE binary,'' COLLATE nocase));
+} {0}
+
+do_execsql_test collate8-3.4 {
+  SELECT 'abc'==('ABC'||CASE WHEN 1-1=2 THEN '' COLLATE nocase
+                                        ELSE '' COLLATE binary END);
+  SELECT 'abc'==('ABC'||CASE WHEN 1+1=2 THEN '' COLLATE nocase
+                                        ELSE '' COLLATE binary END);
+} {1 1}
+do_execsql_test collate8-3.5 {
+  SELECT 'abc'==('ABC'||CASE WHEN 1=2 THEN '' COLLATE binary
+                                      ELSE '' COLLATE nocase END);
+} {0}
+
+
+finish_test