Add //third_party/sqlite to dirs_to_snapshot, remove net_sql.patch

third_party/sqlite/sqlite-src-3080704/test/exclusive.test

Index: third_party/sqlite/sqlite-src-3080704/test/exclusive.test
diff --git a/third_party/sqlite/sqlite-src-3080704/test/exclusive.test b/third_party/sqlite/sqlite-src-3080704/test/exclusive.test
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index 0000000000000000000000000000000000000000..c000dfefa4d803891d3259f58a7dc9fe2a87e336
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+# 2007 March 24
+#
+# 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 these tests is exclusive access mode (i.e. the thing activated by 
+# "PRAGMA locking_mode = EXCLUSIVE").
+#
+# $Id: exclusive.test,v 1.15 2009/06/26 12:30:40 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {!pager_pragmas} {
+  finish_test
+  return
+}
+
+forcedelete test2.db-journal
+forcedelete test2.db
+forcedelete test3.db-journal
+forcedelete test3.db
+forcedelete test4.db-journal
+forcedelete test4.db
+
+#----------------------------------------------------------------------
+# Test cases exclusive-1.X test the PRAGMA logic.
+#
+do_test exclusive-1.0 {
+  execsql {
+    pragma locking_mode;
+    pragma main.locking_mode;
+    pragma temp.locking_mode;
+  } 
+} [list normal normal exclusive]
+do_test exclusive-1.1 {
+  execsql {
+    pragma locking_mode = exclusive;
+  } 
+} {exclusive}
+do_test exclusive-1.2 {
+  execsql {
+    pragma locking_mode;
+    pragma main.locking_mode;
+    pragma temp.locking_mode;
+  } 
+} [list exclusive exclusive exclusive]
+do_test exclusive-1.3 {
+  execsql {
+    pragma locking_mode = normal;
+  } 
+} {normal}
+do_test exclusive-1.4 {
+  execsql {
+    pragma locking_mode;
+    pragma main.locking_mode;
+    pragma temp.locking_mode;
+  } 
+} [list normal normal exclusive]
+do_test exclusive-1.5 {
+  execsql {
+    pragma locking_mode = invalid;
+  } 
+} {normal}
+do_test exclusive-1.6 {
+  execsql {
+    pragma locking_mode;
+    pragma main.locking_mode;
+    pragma temp.locking_mode;
+  } 
+} [list normal normal exclusive]
+ifcapable attach {
+  do_test exclusive-1.7 {
+    execsql {
+      pragma locking_mode = exclusive;
+      ATTACH 'test2.db' as aux;
+    }
+    execsql {
+      pragma main.locking_mode;
+      pragma aux.locking_mode;
+    }
+  } {exclusive exclusive}
+  do_test exclusive-1.8 {
+    execsql {
+      pragma main.locking_mode = normal;
+    }
+    execsql {
+      pragma main.locking_mode;
+      pragma temp.locking_mode;
+      pragma aux.locking_mode;
+    }
+  } [list normal exclusive exclusive]
+  do_test exclusive-1.9 {
+    execsql {
+      pragma locking_mode;
+    }
+  } {exclusive}
+  do_test exclusive-1.10 {
+    execsql {
+      ATTACH 'test3.db' as aux2;
+    }
+    execsql {
+      pragma main.locking_mode;
+      pragma aux.locking_mode;
+      pragma aux2.locking_mode;
+    }
+  } {normal exclusive exclusive}
+  do_test exclusive-1.11 {
+    execsql {
+      pragma aux.locking_mode = normal;
+    }
+    execsql {
+      pragma main.locking_mode;
+      pragma aux.locking_mode;
+      pragma aux2.locking_mode;
+    }
+  } {normal normal exclusive}
+  do_test exclusive-1.12 {
+    execsql {
+      pragma locking_mode = normal;
+    }
+    execsql {
+      pragma main.locking_mode;
+      pragma temp.locking_mode;
+      pragma aux.locking_mode;
+      pragma aux2.locking_mode;
+    }
+  } [list normal exclusive normal normal]
+  do_test exclusive-1.13 {
+    execsql {
+      ATTACH 'test4.db' as aux3;
+    }
+    execsql {
+      pragma main.locking_mode;
+      pragma temp.locking_mode;
+      pragma aux.locking_mode;
+      pragma aux2.locking_mode;
+      pragma aux3.locking_mode;
+    }
+  } [list normal exclusive normal normal normal]
+  
+  do_test exclusive-1.99 {
+    execsql {
+      DETACH aux;
+      DETACH aux2;
+      DETACH aux3;
+    }
+  } {}
+}
+
+#----------------------------------------------------------------------
+# Test cases exclusive-2.X verify that connections in exclusive 
+# locking_mode do not relinquish locks.
+#
+do_test exclusive-2.0 {
+  execsql {
+    CREATE TABLE abc(a, b, c);
+    INSERT INTO abc VALUES(1, 2, 3);
+    PRAGMA locking_mode = exclusive;
+  }
+} {exclusive}
+do_test exclusive-2.1 {
+  sqlite3 db2 test.db
+  execsql {
+    INSERT INTO abc VALUES(4, 5, 6);
+    SELECT * FROM abc;
+  } db2
+} {1 2 3 4 5 6}
+do_test exclusive-2.2 {
+  # This causes connection 'db' (in exclusive mode) to establish 
+  # a shared-lock on the db. The other connection should now be
+  # locked out as a writer.
+  execsql {
+    SELECT * FROM abc;
+  } db
+} {1 2 3 4 5 6}
+do_test exclusive-2.4 {
+  execsql {
+    SELECT * FROM abc;
+  } db2
+} {1 2 3 4 5 6}
+do_test exclusive-2.5 {
+  catchsql {
+    INSERT INTO abc VALUES(7, 8, 9);
+  } db2
+} {1 {database is locked}}
+sqlite3_soft_heap_limit 0
+do_test exclusive-2.6 {
+  # Because connection 'db' only has a shared-lock, the other connection
+  # will be able to get a RESERVED, but will fail to upgrade to EXCLUSIVE.
+  execsql {
+    BEGIN;
+    INSERT INTO abc VALUES(7, 8, 9);
+  } db2
+  catchsql {
+    COMMIT
+  } db2
+} {1 {database is locked}}
+do_test exclusive-2.7 {
+  catchsql {
+    COMMIT
+  } db2
+} {1 {database is locked}}
+do_test exclusive-2.8 {
+  execsql {
+    ROLLBACK;
+  } db2
+} {}
+sqlite3_soft_heap_limit $cmdlinearg(soft-heap-limit)
+
+do_test exclusive-2.9 {
+  # Write the database to establish the exclusive lock with connection 'db.
+  execsql {
+    INSERT INTO abc VALUES(7, 8, 9);
+  } db
+  catchsql {
+    SELECT * FROM abc;
+  } db2
+} {1 {database is locked}}
+do_test exclusive-2.10 {
+  # Changing the locking-mode does not release any locks.
+  execsql {
+    PRAGMA locking_mode = normal;
+  } db
+  catchsql {
+    SELECT * FROM abc;
+  } db2
+} {1 {database is locked}}
+do_test exclusive-2.11 {
+  # After changing the locking mode, accessing the db releases locks.
+  execsql {
+    SELECT * FROM abc;
+  } db
+  execsql {
+    SELECT * FROM abc;
+  } db2
+} {1 2 3 4 5 6 7 8 9}
+db2 close
+
+#----------------------------------------------------------------------
+# Tests exclusive-3.X - test that a connection in exclusive mode 
+# truncates instead of deletes the journal file when committing 
+# a transaction.
+#
+# These tests are not run on windows because the windows backend
+# opens the journal file for exclusive access, preventing its contents 
+# from being inspected externally.
+#
+if {$tcl_platform(platform) != "windows"} {
+
+  # Return a list of two booleans (either 0 or 1). The first is true
+  # if the named file exists. The second is true only if the file
+  # exists and the first 28 bytes contain at least one non-zero byte.
+  #
+  proc filestate {fname} {
+    set exists 0
+    set content 0
+    if {[file exists $fname]} {
+      set exists 1
+      set hdr [hexio_read $fname 0 28]
+      set content [expr {0==[string match $hdr [string repeat 0 56]]}]
+    }
+    list $exists $content
+  }
+
+  do_test exclusive-3.0 {
+    filestate test.db-journal
+  } {0 0}
+  do_test exclusive-3.1 {
+    execsql {
+      PRAGMA locking_mode = exclusive;
+      BEGIN;
+      DELETE FROM abc;
+    }
+    filestate test.db-journal
+  } {1 1}
+  do_test exclusive-3.2 {
+    execsql {
+      COMMIT;
+    }
+    filestate test.db-journal
+  } {1 0}
+  do_test exclusive-3.3 {
+    execsql {
+      INSERT INTO abc VALUES('A', 'B', 'C');
+      SELECT * FROM abc;
+    }
+  } {A B C}
+  do_test exclusive-3.4 {
+    execsql {
+      BEGIN;
+      UPDATE abc SET a = 1, b = 2, c = 3;
+      ROLLBACK;
+      SELECT * FROM abc;
+    }
+  } {A B C}
+  do_test exclusive-3.5 {
+    filestate test.db-journal
+  } {1 0}
+  do_test exclusive-3.6 {
+    execsql {
+      PRAGMA locking_mode = normal;
+      SELECT * FROM abc;
+    }
+    filestate test.db-journal
+  } {0 0}
+}
+
+#----------------------------------------------------------------------
+# Tests exclusive-4.X - test that rollback works correctly when
+# in exclusive-access mode.
+#
+
+# The following procedure computes a "signature" for table "t3".  If
+# T3 changes in any way, the signature should change.  
+#
+# This is used to test ROLLBACK.  We gather a signature for t3, then
+# make lots of changes to t3, then rollback and take another signature.
+# The two signatures should be the same.
+#
+proc signature {} {
+  return [db eval {SELECT count(*), md5sum(x) FROM t3}]
+}
+
+do_test exclusive-4.0 {
+  execsql { PRAGMA locking_mode = exclusive; }
+  execsql { PRAGMA default_cache_size = 10; }
+  execsql {
+    BEGIN;
+    CREATE TABLE t3(x TEXT);
+    INSERT INTO t3 VALUES(randstr(10,400));
+    INSERT INTO t3 VALUES(randstr(10,400));
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    COMMIT;
+  }
+  execsql {SELECT count(*) FROM t3;}
+} {32}
+
+set ::X [signature]
+do_test exclusive-4.1 {
+  execsql {
+    BEGIN;
+    DELETE FROM t3 WHERE random()%10!=0;
+    INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+    INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+    SELECT count(*) FROM t3;
+    ROLLBACK;
+  }
+  signature
+} $::X
+
+do_test exclusive-4.2 {
+  execsql {
+    BEGIN;
+    DELETE FROM t3 WHERE random()%10!=0;
+    INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+    DELETE FROM t3 WHERE random()%10!=0;
+    INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+    ROLLBACK;
+  }
+  signature
+} $::X
+
+do_test exclusive-4.3 {
+  execsql {
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3 WHERE random()%10==0;
+  }
+} {}
+
+do_test exclusive-4.4 {
+  catch {set ::X [signature]}
+} {0}
+do_test exclusive-4.5 {
+  execsql {
+    PRAGMA locking_mode = NORMAL;
+    DROP TABLE t3;
+    DROP TABLE abc;
+  }
+} {normal}
+
+#----------------------------------------------------------------------
+# Tests exclusive-5.X - test that statement journals are truncated
+# instead of deleted when in exclusive access mode.
+#
+
+# Close and reopen the database so that the temp database is no
+# longer active.
+#
+db close
+sqlite3 db test.db
+
+# if we're using proxy locks, we use 3 filedescriptors for a db
+# that is open but NOT writing changes, normally
+# sqlite uses 1 (proxy locking adds the conch and the local lock)
+set using_proxy 0
+foreach {name value} [array get env SQLITE_FORCE_PROXY_LOCKING] {
+  set using_proxy $value
+}
+set extrafds 0
+if {$using_proxy!=0} {
+  set extrafds 2
+} 
+
+do_test exclusive-5.0 {
+  execsql {
+    CREATE TABLE abc(a UNIQUE, b UNIQUE, c UNIQUE);
+    BEGIN;
+    INSERT INTO abc VALUES(1, 2, 3);
+    INSERT INTO abc SELECT a+1, b+1, c+1 FROM abc;
+  }
+} {}
+do_test exclusive-5.1 {
+  # Three files are open: The db, journal and statement-journal.
+  set sqlite_open_file_count
+  expr $sqlite_open_file_count-$extrafds
+} [expr 3 - ($TEMP_STORE>=2)]
+do_test exclusive-5.2 {
+  execsql {
+    COMMIT;
+  }
+  # One file open: the db.
+  set sqlite_open_file_count
+  expr $sqlite_open_file_count-$extrafds
+} {1}
+do_test exclusive-5.3 {
+  execsql {
+    PRAGMA locking_mode = exclusive;
+    BEGIN;
+    INSERT INTO abc VALUES(5, 6, 7);
+  }
+  # Two files open: the db and journal.
+  set sqlite_open_file_count
+  expr $sqlite_open_file_count-$extrafds
+} {2}
+do_test exclusive-5.4 {
+  execsql {
+    INSERT INTO abc SELECT a+10, b+10, c+10 FROM abc;
+  }
+  # Three files are open: The db, journal and statement-journal.
+  set sqlite_open_file_count
+  expr $sqlite_open_file_count-$extrafds
+} [expr 3 - ($TEMP_STORE>=2)]
+do_test exclusive-5.5 {
+  execsql {
+    COMMIT;
+  }
+  # Three files are still open: The db, journal and statement-journal.
+  set sqlite_open_file_count
+  expr $sqlite_open_file_count-$extrafds
+} [expr 3 - ($TEMP_STORE>=2)]
+do_test exclusive-5.6 {
+  execsql {
+    PRAGMA locking_mode = normal;
+    SELECT * FROM abc;
+  }
+} {normal 1 2 3 2 3 4 5 6 7 11 12 13 12 13 14 15 16 17}
+do_test exclusive-5.7 {
+  # Just the db open.
+  set sqlite_open_file_count
+  expr $sqlite_open_file_count-$extrafds
+} {1}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test exclusive-6.1 {
+  CREATE TABLE t4(a, b);
+  INSERT INTO t4 VALUES('Eden', 1955);
+  BEGIN;
+    INSERT INTO t4 VALUES('Macmillan', 1957);
+    INSERT INTO t4 VALUES('Douglas-Home', 1963);
+    INSERT INTO t4 VALUES('Wilson', 1964);
+}
+do_test exclusive-6.2 {
+  forcedelete test2.db test2.db-journal
+  copy_file test.db test2.db
+  copy_file test.db-journal test2.db-journal
+  sqlite3 db test2.db
+} {}
+
+do_execsql_test exclusive-6.3 {
+  PRAGMA locking_mode = EXCLUSIVE;
+  SELECT * FROM t4;
+} {exclusive Eden 1955}
+
+do_test exclusive-6.4 {
+  db close
+  forcedelete test.db test.db-journal
+  set fd [open test.db-journal w]
+  puts $fd x
+  close $fd
+  sqlite3 db test.db
+} {}
+
+do_execsql_test exclusive-6.5 {
+  PRAGMA locking_mode = EXCLUSIVE;
+  SELECT * FROM sqlite_master;
+} {exclusive}
+
+finish_test