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

Artifact 62bfaf9267296da1b91e4b1c03e44e7b393f6a94:


# 2010 August 4
#
# 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.
#
#***********************************************************************
#
# The focus of this file is testing the CLI shell tool.
# These tests are specific to the .import command.
#
# $Id: shell5.test,v 1.7 2009/07/17 16:54:48 shaneh Exp $
#

# Test plan:
#
#   shell5-1.*: Basic tests specific to the ".import" command.
#

set CLI "./sqlite3"

proc do_test {name cmd expected} {
  puts -nonewline "$name ..."
  set res [uplevel $cmd]
  if {$res eq $expected} {
    puts Ok
  } else {
    puts Error
    puts "  Got: $res"
    puts "  Expected: $expected"
    exit
  }
}

proc catchcmd {db {cmd ""}} {
  global CLI
  set out [open cmds.txt w]
  puts $out $cmd
  close $out
  set line "exec $CLI $db < cmds.txt"
  set rc [catch { eval $line } msg]
  list $rc $msg
}

file delete -force test.db test.db.journal

#----------------------------------------------------------------------------
# Test cases shell5-1.*: Basic handling of the .import and .separator commands.
#

# .import FILE TABLE     Import data from FILE into TABLE
do_test shell5-1.1.1 {
  catchcmd "test.db" ".import"
} {1 {Error: unknown command or invalid arguments:  "import". Enter ".help" for help}}
do_test shell5-1.1.2 {
  catchcmd "test.db" ".import FOO"
} {1 {Error: unknown command or invalid arguments:  "import". Enter ".help" for help}}
do_test shell5-1.1.2 {
  catchcmd "test.db" ".import FOO BAR"
} {1 {Error: no such table: BAR}}
do_test shell5-1.1.3 {
  # too many arguments
  catchcmd "test.db" ".import FOO BAR BAD"
} {1 {Error: unknown command or invalid arguments:  "import". Enter ".help" for help}}

# .separator STRING      Change separator used by output mode and .import
do_test shell1-1.2.1 {
  catchcmd "test.db" ".separator"
} {1 {Error: unknown command or invalid arguments:  "separator". Enter ".help" for help}}
do_test shell1-1.2.2 {
  catchcmd "test.db" ".separator FOO"
} {0 {}}
do_test shell1-1.2.3 {
  # too many arguments
  catchcmd "test.db" ".separator FOO BAD"
} {1 {Error: unknown command or invalid arguments:  "separator". Enter ".help" for help}}

# separator should default to "|"
do_test shell5-1.3.1 {
  set res [catchcmd "test.db" ".show"]
  list [regexp {separator: \"\|\"} $res]
} {1}

# set separator to different value.
# check that .show reports new value
do_test shell5-1.3.2 {
  set res [catchcmd "test.db" {.separator ,
.show}]
  list [regexp {separator: \",\"} $res]
} {1}

# import file doesn't exist
do_test shell5-1.4.1 {
  file delete -force FOO
  set res [catchcmd "test.db" {CREATE TABLE t1(a, b);
.import FOO t1}]
} {1 {Error: cannot open "FOO"}}

# empty import file
do_test shell5-1.4.2 {
  file delete -force shell5.csv
  set in [open shell5.csv w]
  close $in
  set res [catchcmd "test.db" {.import shell5.csv t1
SELECT COUNT(*) FROM t1;}]
} {0 0}

# import file with 1 row, 1 column (expecting 2 cols)
do_test shell5-1.4.3 {
  set in [open shell5.csv w]
  puts $in "1"
  close $in
  set res [catchcmd "test.db" {.import shell5.csv t1}]
} {1 {Error: shell5.csv line 1: expected 2 columns of data but found 1}}

# import file with 1 row, 3 columns (expecting 2 cols)
do_test shell5-1.4.4 {
  set in [open shell5.csv w]
  puts $in "1|2|3"
  close $in
  set res [catchcmd "test.db" {.import shell5.csv t1}]
} {1 {Error: shell5.csv line 1: expected 2 columns of data but found 3}}

# import file with 1 row, 2 columns
do_test shell5-1.4.5 {
  set in [open shell5.csv w]
  puts $in "1|2"
  close $in
  set res [catchcmd "test.db" {.import shell5.csv t1
SELECT COUNT(*) FROM t1;}]
} {0 1}

# import file with 2 rows, 2 columns
# note we end up with 3 rows because of the 1 row 
# imported above.
do_test shell5-1.4.6 {
  set in [open shell5.csv w]
  puts $in "2|3"
  puts $in "3|4"
  close $in
  set res [catchcmd "test.db" {.import shell5.csv t1
SELECT COUNT(*) FROM t1;}]
} {0 3}

# import file with 1 row, 2 columns, using a comma
do_test shell5-1.4.7 {
  set in [open shell5.csv w]
  puts $in "4,5"
  close $in
  set res [catchcmd "test.db" {.separator ,
.import shell5.csv t1
SELECT COUNT(*) FROM t1;}]
} {0 4}

# import file with 1 row, 2 columns, text data
do_test shell5-1.4.8.1 {
  set in [open shell5.csv w]
  puts $in "5|Now is the time for all good men to come to the aid of their country."
  close $in
  set res [catchcmd "test.db" {.import shell5.csv t1
SELECT COUNT(*) FROM t1;}]
} {0 5}

do_test shell5-1.4.8.2 {
  catchcmd "test.db" {SELECT b FROM t1 WHERE a='5';}
} {0 {Now is the time for all good men to come to the aid of their country.}}

# import file with 1 row, 2 columns, quoted text data
# note that currently sqlite doesn't support quoted fields, and
# imports the entire field, quotes and all.
do_test shell5-1.4.9.1 {
  set in [open shell5.csv w]
  puts $in "6|'Now is the time for all good men to come to the aid of their country.'"
  close $in
  set res [catchcmd "test.db" {.import shell5.csv t1
SELECT COUNT(*) FROM t1;}]
} {0 6}

do_test shell5-1.4.9.2 {
  catchcmd "test.db" {SELECT b FROM t1 WHERE a='6';}
} {0 {'Now is the time for all good men to come to the aid of their country.'}}

# import file with 1 row, 2 columns, quoted text data
do_test shell5-1.4.10.1 {
  set in [open shell5.csv w]
  puts $in "7|\"Now is the time for all good men to come to the aid of their country.\""
  close $in
  set res [catchcmd "test.db" {.import shell5.csv t1
SELECT COUNT(*) FROM t1;}]
} {0 7}

do_test shell5-1.4.10.2 {
  catchcmd "test.db" {SELECT b FROM t1 WHERE a='7';}
} {0 {"Now is the time for all good men to come to the aid of their country."}}

# check importing very long field
do_test shell5-1.5.1 {
  set str [string repeat X 999]
  set in [open shell5.csv w]
  puts $in "8|$str"
  close $in
  set res [catchcmd "test.db" {.import shell5.csv t1
SELECT length(b) FROM t1 WHERE a='8';}]
} {0 999}

# try importing into a table with a large number of columns.
# This is limited by SQLITE_MAX_VARIABLE_NUMBER, which defaults to 999.
set cols 999
do_test shell5-1.6.1 {
  set sql {CREATE TABLE t2(}
  set data {}
  for {set i 1} {$i<$cols} {incr i} {
    append sql "c$i,"
    append data "$i|"
  }
  append sql "c$cols);"
  append data "$cols"
  catchcmd "test.db" $sql
  set in [open shell5.csv w]
  puts $in $data
  close $in
  set res [catchcmd "test.db" {.import shell5.csv t2
SELECT COUNT(*) FROM t2;}]
} {0 1}

# try importing a large number of rows
set rows 999999
do_test shell5-1.7.1 {
  set in [open shell5.csv w]
  for {set i 1} {$i<=$rows} {incr i} {
    puts $in $i
  }
  close $in
  set res [catchcmd "test.db" {CREATE TABLE t3(a);
.import shell5.csv t3
SELECT COUNT(*) FROM t3;}]
} [list 0 $rows]


puts "CLI tests completed successfully"