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SQLite training in Houston TX on 2019-11-05 (details)
Part of the 2019 Tcl Conference

Artifact 75ffc1b992c780d054748a656e3e7fd674f18567:


# 2004 Jun 29
#
# 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 implements tests for the "sqlite3_trace()" API.
#
# $Id: trace.test,v 1.6 2006/01/03 00:33:50 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

ifcapable !trace {
  finish_test
  return
}

set ::stmtlist {}
do_test trace-1.1 {
  set rc [catch {db trace 1 2 3} msg]
  lappend rc $msg
} {1 {wrong # args: should be "db trace ?CALLBACK?"}}
proc trace_proc cmd {
  lappend ::stmtlist [string trim $cmd]
}
do_test trace-1.2 {
  db trace trace_proc
  db trace
} {trace_proc}
do_test trace-1.3 {
  execsql {
    CREATE TABLE t1(a,b);
    INSERT INTO t1 VALUES(1,2);
    SELECT * FROM t1;
  }
} {1 2}
do_test trace-1.4 {
  set ::stmtlist
} {{CREATE TABLE t1(a,b);} {INSERT INTO t1 VALUES(1,2);} {SELECT * FROM t1;}}
do_test trace-1.5 {
  db trace {}
  db trace
} {}

# If we prepare a statement and execute it multiple times, the trace
# happens on each execution.
#
db close
sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
do_test trace-2.1 {
  set STMT [sqlite3_prepare $DB {INSERT INTO t1 VALUES(2,3)} -1 TAIL]
  db trace trace_proc
  proc trace_proc sql {
    global TRACE_OUT
    set TRACE_OUT $sql
  }
  set TRACE_OUT {}
  sqlite3_step $STMT
  set TRACE_OUT
} {INSERT INTO t1 VALUES(2,3)}
do_test trace-2.2 {
  set TRACE_OUT {}
  sqlite3_reset $STMT
  set TRACE_OUT 
} {}
do_test trace-2.3 {
  sqlite3_step $STMT
  set TRACE_OUT
} {INSERT INTO t1 VALUES(2,3)}
do_test trace-2.4 {
  execsql {SELECT * FROM t1}
} {1 2 2 3 2 3}
do_test trace-2.5 {
  set TRACE_OUT
} {SELECT * FROM t1}
catch {sqlite3_finalize $STMT}

# Similar tests, but this time for profiling.
# 
do_test trace-3.1 {
  set rc [catch {db profile 1 2 3} msg]
  lappend rc $msg
} {1 {wrong # args: should be "db profile ?CALLBACK?"}}
set ::stmtlist {}
proc profile_proc {cmd tm} {
  lappend ::stmtlist [string trim $cmd]
}
do_test trace-3.2 {
  db trace {}
  db profile profile_proc
  db profile
} {profile_proc}
do_test trace-3.3 {
  execsql {
    CREATE TABLE t2(a,b);
    INSERT INTO t2 VALUES(1,2);
    SELECT * FROM t2;
  }
} {1 2}
do_test trace-3.4 {
  set ::stmtlist
} {{CREATE TABLE t2(a,b);} {INSERT INTO t2 VALUES(1,2);} {SELECT * FROM t2;}}
do_test trace-3.5 {
  db profile {}
  db profile
} {}

# If we prepare a statement and execute it multiple times, the profile
# happens on each execution.
#
db close
sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
do_test trace-4.1 {
  set STMT [sqlite3_prepare $DB {INSERT INTO t2 VALUES(2,3)} -1 TAIL]
  db trace trace_proc
  proc profile_proc {sql tm} {
    global TRACE_OUT
    set TRACE_OUT $sql
  }
  set TRACE_OUT {}
  sqlite3_step $STMT
  set TRACE_OUT
} {INSERT INTO t2 VALUES(2,3)}
do_test trace-4.2 {
  set TRACE_OUT {}
  sqlite3_reset $STMT
  set TRACE_OUT 
} {}
do_test trace-4.3 {
  sqlite3_step $STMT
  set TRACE_OUT
} {INSERT INTO t2 VALUES(2,3)}
do_test trace-4.4 {
  execsql {SELECT * FROM t1}
} {1 2 2 3 2 3}
do_test trace-4.5 {
  set TRACE_OUT
} {SELECT * FROM t1}
catch {sqlite3_finalize $STMT}

finish_test