347 lines
8.8 KiB
Plaintext
347 lines
8.8 KiB
Plaintext
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# 2005 June 25
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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# This file implements regression tests for SQLite library. The
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# focus of this file is testing the CAST operator.
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#
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# $Id: cast.test,v 1.10 2008/11/06 15:33:04 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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# Only run these tests if the build includes the CAST operator
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ifcapable !cast {
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finish_test
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return
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}
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# Tests for the CAST( AS blob), CAST( AS text) and CAST( AS numeric) built-ins
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#
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ifcapable bloblit {
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do_test cast-1.1 {
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execsql {SELECT x'616263'}
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} abc
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do_test cast-1.2 {
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execsql {SELECT typeof(x'616263')}
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} blob
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do_test cast-1.3 {
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execsql {SELECT CAST(x'616263' AS text)}
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} abc
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do_test cast-1.4 {
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execsql {SELECT typeof(CAST(x'616263' AS text))}
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} text
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do_test cast-1.5 {
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execsql {SELECT CAST(x'616263' AS numeric)}
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} 0
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do_test cast-1.6 {
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execsql {SELECT typeof(CAST(x'616263' AS numeric))}
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} integer
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do_test cast-1.7 {
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execsql {SELECT CAST(x'616263' AS blob)}
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} abc
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do_test cast-1.8 {
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execsql {SELECT typeof(CAST(x'616263' AS blob))}
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} blob
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do_test cast-1.9 {
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execsql {SELECT CAST(x'616263' AS integer)}
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} 0
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do_test cast-1.10 {
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execsql {SELECT typeof(CAST(x'616263' AS integer))}
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} integer
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}
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do_test cast-1.11 {
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execsql {SELECT null}
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} {{}}
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do_test cast-1.12 {
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execsql {SELECT typeof(NULL)}
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} null
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do_test cast-1.13 {
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execsql {SELECT CAST(NULL AS text)}
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} {{}}
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do_test cast-1.14 {
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execsql {SELECT typeof(CAST(NULL AS text))}
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} null
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do_test cast-1.15 {
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execsql {SELECT CAST(NULL AS numeric)}
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} {{}}
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do_test cast-1.16 {
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execsql {SELECT typeof(CAST(NULL AS numeric))}
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} null
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do_test cast-1.17 {
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execsql {SELECT CAST(NULL AS blob)}
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} {{}}
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do_test cast-1.18 {
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execsql {SELECT typeof(CAST(NULL AS blob))}
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} null
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do_test cast-1.19 {
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execsql {SELECT CAST(NULL AS integer)}
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} {{}}
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do_test cast-1.20 {
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execsql {SELECT typeof(CAST(NULL AS integer))}
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} null
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do_test cast-1.21 {
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execsql {SELECT 123}
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} {123}
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do_test cast-1.22 {
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execsql {SELECT typeof(123)}
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} integer
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do_test cast-1.23 {
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execsql {SELECT CAST(123 AS text)}
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} {123}
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do_test cast-1.24 {
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execsql {SELECT typeof(CAST(123 AS text))}
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} text
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do_test cast-1.25 {
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execsql {SELECT CAST(123 AS numeric)}
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} 123
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do_test cast-1.26 {
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execsql {SELECT typeof(CAST(123 AS numeric))}
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} integer
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do_test cast-1.27 {
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execsql {SELECT CAST(123 AS blob)}
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} {123}
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do_test cast-1.28 {
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execsql {SELECT typeof(CAST(123 AS blob))}
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} blob
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do_test cast-1.29 {
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execsql {SELECT CAST(123 AS integer)}
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} {123}
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do_test cast-1.30 {
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execsql {SELECT typeof(CAST(123 AS integer))}
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} integer
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do_test cast-1.31 {
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execsql {SELECT 123.456}
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} {123.456}
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do_test cast-1.32 {
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execsql {SELECT typeof(123.456)}
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} real
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do_test cast-1.33 {
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execsql {SELECT CAST(123.456 AS text)}
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} {123.456}
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do_test cast-1.34 {
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execsql {SELECT typeof(CAST(123.456 AS text))}
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} text
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do_test cast-1.35 {
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execsql {SELECT CAST(123.456 AS numeric)}
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} 123.456
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do_test cast-1.36 {
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execsql {SELECT typeof(CAST(123.456 AS numeric))}
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} real
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do_test cast-1.37 {
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execsql {SELECT CAST(123.456 AS blob)}
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} {123.456}
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do_test cast-1.38 {
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execsql {SELECT typeof(CAST(123.456 AS blob))}
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} blob
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do_test cast-1.39 {
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execsql {SELECT CAST(123.456 AS integer)}
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} {123}
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do_test cast-1.38 {
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execsql {SELECT typeof(CAST(123.456 AS integer))}
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} integer
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do_test cast-1.41 {
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execsql {SELECT '123abc'}
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} {123abc}
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do_test cast-1.42 {
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execsql {SELECT typeof('123abc')}
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} text
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do_test cast-1.43 {
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execsql {SELECT CAST('123abc' AS text)}
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} {123abc}
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do_test cast-1.44 {
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execsql {SELECT typeof(CAST('123abc' AS text))}
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} text
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do_test cast-1.45 {
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execsql {SELECT CAST('123abc' AS numeric)}
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} 123
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do_test cast-1.46 {
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execsql {SELECT typeof(CAST('123abc' AS numeric))}
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} integer
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do_test cast-1.47 {
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execsql {SELECT CAST('123abc' AS blob)}
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} {123abc}
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do_test cast-1.48 {
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execsql {SELECT typeof(CAST('123abc' AS blob))}
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} blob
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do_test cast-1.49 {
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execsql {SELECT CAST('123abc' AS integer)}
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} 123
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do_test cast-1.50 {
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execsql {SELECT typeof(CAST('123abc' AS integer))}
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} integer
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do_test cast-1.51 {
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execsql {SELECT CAST('123.5abc' AS numeric)}
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} 123.5
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do_test cast-1.53 {
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execsql {SELECT CAST('123.5abc' AS integer)}
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} 123
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do_test case-1.60 {
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execsql {SELECT CAST(null AS REAL)}
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} {{}}
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do_test case-1.61 {
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execsql {SELECT typeof(CAST(null AS REAL))}
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} {null}
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do_test case-1.62 {
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execsql {SELECT CAST(1 AS REAL)}
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} {1.0}
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do_test case-1.63 {
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execsql {SELECT typeof(CAST(1 AS REAL))}
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} {real}
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do_test case-1.64 {
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execsql {SELECT CAST('1' AS REAL)}
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} {1.0}
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do_test case-1.65 {
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execsql {SELECT typeof(CAST('1' AS REAL))}
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} {real}
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do_test case-1.66 {
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execsql {SELECT CAST('abc' AS REAL)}
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} {0.0}
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do_test case-1.67 {
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execsql {SELECT typeof(CAST('abc' AS REAL))}
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} {real}
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do_test case-1.68 {
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execsql {SELECT CAST(x'31' AS REAL)}
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} {1.0}
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do_test case-1.69 {
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execsql {SELECT typeof(CAST(x'31' AS REAL))}
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} {real}
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# Ticket #1662. Ignore leading spaces in numbers when casting.
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#
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do_test cast-2.1 {
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execsql {SELECT CAST(' 123' AS integer)}
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} 123
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do_test cast-2.2 {
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execsql {SELECT CAST(' -123.456' AS real)}
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} -123.456
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# ticket #2364. Use full percision integers if possible when casting
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# to numeric. Do not fallback to real (and the corresponding 48-bit
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# mantissa) unless absolutely necessary.
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#
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do_test cast-3.1 {
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execsql {SELECT CAST(9223372036854774800 AS integer)}
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} 9223372036854774800
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do_test cast-3.2 {
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execsql {SELECT CAST(9223372036854774800 AS numeric)}
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} 9223372036854774800
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do_realnum_test cast-3.3 {
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execsql {SELECT CAST(9223372036854774800 AS real)}
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} 9.22337203685477e+18
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do_test cast-3.4 {
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execsql {SELECT CAST(CAST(9223372036854774800 AS real) AS integer)}
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} 9223372036854774784
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do_test cast-3.5 {
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execsql {SELECT CAST(-9223372036854774800 AS integer)}
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} -9223372036854774800
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do_test cast-3.6 {
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execsql {SELECT CAST(-9223372036854774800 AS numeric)}
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} -9223372036854774800
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do_realnum_test cast-3.7 {
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execsql {SELECT CAST(-9223372036854774800 AS real)}
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} -9.22337203685477e+18
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do_test cast-3.8 {
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execsql {SELECT CAST(CAST(-9223372036854774800 AS real) AS integer)}
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} -9223372036854774784
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do_test cast-3.11 {
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execsql {SELECT CAST('9223372036854774800' AS integer)}
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} 9223372036854774800
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do_test cast-3.12 {
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execsql {SELECT CAST('9223372036854774800' AS numeric)}
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} 9223372036854774800
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do_realnum_test cast-3.13 {
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execsql {SELECT CAST('9223372036854774800' AS real)}
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} 9.22337203685477e+18
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ifcapable long_double {
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do_test cast-3.14 {
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execsql {SELECT CAST(CAST('9223372036854774800' AS real) AS integer)}
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} 9223372036854774784
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}
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do_test cast-3.15 {
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execsql {SELECT CAST('-9223372036854774800' AS integer)}
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} -9223372036854774800
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do_test cast-3.16 {
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execsql {SELECT CAST('-9223372036854774800' AS numeric)}
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} -9223372036854774800
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do_realnum_test cast-3.17 {
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execsql {SELECT CAST('-9223372036854774800' AS real)}
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} -9.22337203685477e+18
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ifcapable long_double {
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do_test cast-3.18 {
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execsql {SELECT CAST(CAST('-9223372036854774800' AS real) AS integer)}
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} -9223372036854774784
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}
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if {[db eval {PRAGMA encoding}]=="UTF-8"} {
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do_test cast-3.21 {
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execsql {SELECT CAST(x'39323233333732303336383534373734383030' AS integer)}
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} 9223372036854774800
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do_test cast-3.22 {
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execsql {SELECT CAST(x'39323233333732303336383534373734383030' AS numeric)}
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} 9223372036854774800
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do_realnum_test cast-3.23 {
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execsql {SELECT CAST(x'39323233333732303336383534373734383030' AS real)}
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} 9.22337203685477e+18
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ifcapable long_double {
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do_test cast-3.24 {
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execsql {
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SELECT CAST(CAST(x'39323233333732303336383534373734383030' AS real)
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AS integer)
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}
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} 9223372036854774784
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}
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}
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do_test case-3.31 {
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execsql {SELECT CAST(NULL AS numeric)}
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} {{}}
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# Test to see if it is possible to trick SQLite into reading past
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# the end of a blob when converting it to a number.
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do_test cast-3.32.1 {
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set blob "1234567890"
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set DB [sqlite3_connection_pointer db]
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set ::STMT [sqlite3_prepare $DB {SELECT CAST(? AS real)} -1 TAIL]
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sqlite3_bind_blob -static $::STMT 1 $blob 5
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sqlite3_step $::STMT
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} {SQLITE_ROW}
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do_test cast-3.32.2 {
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sqlite3_column_int $::STMT 0
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} {12345}
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do_test cast-3.32.3 {
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sqlite3_finalize $::STMT
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} {SQLITE_OK}
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do_test cast-4.1 {
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db eval {
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CREATE TABLE t1(a);
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INSERT INTO t1 VALUES('abc');
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SELECT a, CAST(a AS integer) FROM t1;
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}
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} {abc 0}
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do_test cast-4.2 {
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db eval {
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SELECT CAST(a AS integer), a FROM t1;
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}
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} {0 abc}
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do_test cast-4.3 {
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db eval {
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SELECT a, CAST(a AS integer), a FROM t1;
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}
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} {abc 0 abc}
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do_test cast-4.4 {
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db eval {
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SELECT CAST(a AS integer), a, CAST(a AS real), a FROM t1;
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}
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} {0 abc 0.0 abc}
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finish_test
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