printf.test

sqlite-3.4.1,嵌入式数据库.是一个功能强大的开源数据库,给学习和研发以及小型公司的发展带来了全所未有的好处.

# 2001 September 15
#
# 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 file is testing the sqlite_*_printf() interface.
#
# $Id: printf.test,v 1.24 2007/05/10 17:23:12 drh Exp $

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

set n 1
foreach v {1 2 5 10 99 100 1000000 999999999 0 -1 -2 -5 -10 -99 -100 -9999999} {
  set v32 [expr {$v&0xffffffff}]
  do_test printf-1.$n.1 [subst {
    sqlite3_mprintf_int {Three integers: %d %x %o} $v $v $v
  }] [format {Three integers: %d %x %o} $v $v32 $v32]
  do_test printf-1.$n.2 [subst {
    sqlite3_mprintf_int {Three integers: (%6d) (%6x) (%6o)} $v $v $v
  }] [format {Three integers: (%6d) (%6x) (%6o)} $v $v32 $v32]
  do_test printf-1.$n.3 [subst {
    sqlite3_mprintf_int {Three integers: (%-6d) (%-6x) (%-6o)} $v $v $v
  }] [format {Three integers: (%-6d) (%-6x) (%-6o)} $v $v32 $v32]
  do_test printf-1.$n.4 [subst {
    sqlite3_mprintf_int {Three integers: (%+6d) (%+6x) (%+6o)} $v $v $v
  }] [format {Three integers: (%+6d) (%+6x) (%+6o)} $v $v32 $v32]
  do_test printf-1.$n.5 [subst {
    sqlite3_mprintf_int {Three integers: (%06d) (%06x) (%06o)} $v $v $v
  }] [format {Three integers: (%06d) (%06x) (%06o)} $v $v32 $v32]
  do_test printf-1.$n.6 [subst {
    sqlite3_mprintf_int {Three integers: (% 6d) (% 6x) (% 6o)} $v $v $v
  }] [format {Three integers: (% 6d) (% 6x) (% 6o)} $v $v32 $v32]
  do_test printf-1.$n.7 [subst {
    sqlite3_mprintf_int {Three integers: (%#6d) (%#6x) (%#6o)} $v $v $v
  }] [format {Three integers: (%#6d) (%#6x) (%#6o)} $v $v32 $v32]
  incr n
}


if {$::tcl_platform(platform)!="windows"} {

set m 1
foreach {a b} {1 1 5 5 10 10 10 5} {
  set n 1
  foreach x {0.001 1.0e-20 1.0 0.0 100.0 9.99999 -0.00543 -1.0 -99.99999} {
    do_test printf-2.$m.$n.1 [subst {
      sqlite3_mprintf_double {A double: %*.*f} $a $b $x
    }] [format {A double: %*.*f} $a $b $x]
    do_test printf-2.$m.$n.2 [subst {
      sqlite3_mprintf_double {A double: %*.*e} $a $b $x
    }] [format {A double: %*.*e} $a $b $x]
    do_test printf-2.$m.$n.3 [subst {
      sqlite3_mprintf_double {A double: %*.*g} $a $b $x
    }] [format {A double: %*.*g} $a $b $x]
    do_test printf-2.$m.$n.4 [subst {
      sqlite3_mprintf_double {A double: %d %d %g} $a $b $x
    }] [format {A double: %d %d %g} $a $b $x]
    do_test printf-2.$m.$n.5 [subst {
      sqlite3_mprintf_double {A double: %d %d %#g} $a $b $x
    }] [format {A double: %d %d %#g} $a $b $x]
    do_test printf-2.$m.$n.6 [subst {
      sqlite3_mprintf_double {A double: %d %d %010g} $a $b $x
    }] [format {A double: %d %d %010g} $a $b $x]
    incr n
  }
  incr m
}

}  ;# endif not windows

do_test printf-3.1 {
  sqlite3_mprintf_str {A String: (%*.*s)} 10 10 {This is the string}
} [format {A String: (%*.*s)} 10 10 {This is the string}]
do_test printf-3.2 {
  sqlite3_mprintf_str {A String: (%*.*s)} 10 5 {This is the string}
} [format {A String: (%*.*s)} 10 5 {This is the string}]
do_test printf-3.3 {
  sqlite3_mprintf_str {A String: (%*.*s)} -10 5 {This is the string}
} [format {A String: (%*.*s)} -10 5 {This is the string}]
do_test printf-3.4 {
  sqlite3_mprintf_str {%d %d A String: (%s)} 1 2 {This is the string}
} [format {%d %d A String: (%s)} 1 2 {This is the string}]
do_test printf-3.5 {
  sqlite3_mprintf_str {%d %d A String: (%30s)} 1 2 {This is the string}
} [format {%d %d A String: (%30s)} 1 2 {This is the string}]
do_test printf-3.6 {
  sqlite3_mprintf_str {%d %d A String: (%-30s)} 1 2 {This is the string}
} [format {%d %d A String: (%-30s)} 1 2 {This is the string}]
do_test snprintf-3.11 {
  sqlite3_snprintf_str 2 {x%d %d %s} 10 10 {This is the string}
} {x}
do_test snprintf-3.12 {
  sqlite3_snprintf_str 3 {x%d %d %s} 10 10 {This is the string}
} {x1}
do_test snprintf-3.13 {
  sqlite3_snprintf_str 4 {x%d %d %s} 10 10 {This is the string}
} {x10}
do_test snprintf-3.14 {
  sqlite3_snprintf_str 5 {x%d %d %s} 10 10 {This is the string}
} {x10 }
do_test snprintf-3.15 {
  sqlite3_snprintf_str 6 {x%d %d %s} 10 10 {This is the string}
} {x10 1}
do_test snprintf-3.16 {
  sqlite3_snprintf_str 7 {x%d %d %s} 10 10 {This is the string}
} {x10 10}
do_test snprintf-3.17 {
  sqlite3_snprintf_str 8 {x%d %d %s} 10 10 {This is the string}
} {x10 10 }
do_test snprintf-3.18 {
  sqlite3_snprintf_str 9 {x%d %d %s} 10 10 {This is the string}
} {x10 10 T}
do_test snprintf-3.19 {
  sqlite3_snprintf_str 100 {x%d %d %s} 10 10 {This is the string}
} {x10 10 This is the string}

do_test printf-4.1 {
  sqlite3_mprintf_str {%d %d A quoted string: '%q'} 1 2 {Hi Y'all}
} {1 2 A quoted string: 'Hi Y''all'}
do_test printf-4.2 {
  sqlite3_mprintf_str {%d %d A NULL pointer in %%q: '%q'} 1 2
} {1 2 A NULL pointer in %q: '(NULL)'}
do_test printf-4.3 {
  sqlite3_mprintf_str {%d %d A quoted string: %Q} 1 2 {Hi Y'all}
} {1 2 A quoted string: 'Hi Y''all'}
do_test printf-4.4 {
  sqlite3_mprintf_str {%d %d A NULL pointer in %%Q: %Q} 1 2
} {1 2 A NULL pointer in %Q: NULL}

do_test printf-5.1 {
  set x [sqlite3_mprintf_str {%d %d %100000s} 0 0 {Hello}]
  string length $x
} {344}
do_test printf-5.2 {
  sqlite3_mprintf_str {%d %d (%-10.10s) %} -9 -10 {HelloHelloHello}
} {-9 -10 (HelloHello) %}

do_test printf-6.1 {
  sqlite3_mprintf_z_test , one two three four five six
} {,one,two,three,four,five,six}


do_test printf-7.1 {
  sqlite3_mprintf_scaled {A double: %g} 1.0e307 1.0
} {A double: 1e+307}
do_test printf-7.2 {
  sqlite3_mprintf_scaled {A double: %g} 1.0e307 10.0
} {A double: 1e+308}
do_test printf-7.3 {
  sqlite3_mprintf_scaled {A double: %g} 1.0e307 100.0
} {A double: Inf}
do_test printf-7.4 {
  sqlite3_mprintf_scaled {A double: %g} -1.0e307 100.0
} {A double: -Inf}
do_test printf-7.5 {
  sqlite3_mprintf_scaled {A double: %+g} 1.0e307 100.0
} {A double: +Inf}

do_test printf-8.1 {
  sqlite3_mprintf_int {%u %u %u} 0x7fffffff 0x80000000 0xffffffff
} {2147483647 2147483648 4294967295}
do_test printf-8.2 {
  sqlite3_mprintf_int {%lu %lu %lu} 0x7fffffff 0x80000000 0xffffffff
} {2147483647 2147483648 4294967295}
do_test printf-8.3 {
  sqlite3_mprintf_int64 {%llu %llu %llu} 2147483647 2147483648 4294967296
} {2147483647 2147483648 4294967296}
do_test printf-8.4 {
  sqlite3_mprintf_int64 {%lld %lld %lld} 2147483647 2147483648 4294967296
} {2147483647 2147483648 4294967296}
do_test printf-8.5 {
  sqlite3_mprintf_int64 {%llx %llx %llx} 2147483647 2147483648 4294967296
} {7fffffff 80000000 100000000}
do_test printf-8.6 {
  sqlite3_mprintf_int64 {%llx %llo %lld} -1 -1 -1
} {ffffffffffffffff 1777777777777777777777 -1}

do_test printf-9.1 {
  sqlite3_mprintf_int {%*.*c} 4 4 65
} {AAAA}
do_test printf-9.2 {
  sqlite3_mprintf_int {%*.*c} -4 1 66
} {B   }
do_test printf-9.3 {
  sqlite3_mprintf_int {%*.*c} 4 1 67
} {   C}
do_test printf-9.4 {
  sqlite3_mprintf_int {%d %d %c} 4 1 67
} {4 1 C}
set ten {          }
set fifty $ten$ten$ten$ten$ten
do_test printf-9.5 {
  sqlite3_mprintf_int {%d %*c} 1 -201 67
} "1 C$fifty$fifty$fifty$fifty"
do_test printf-9.6 {
  sqlite3_mprintf_int {hi%12345.12346yhello} 0 0 0
} {hi}

# Ticket #812
#
do_test printf-10.1 {
  sqlite3_mprintf_stronly %s {}
} {}

# Ticket #831
#
do_test printf-10.2 {
  sqlite3_mprintf_stronly %q {}
} {}

# Ticket #1340:  Test for loss of precision on large positive exponents
#
do_test printf-10.3 {
  sqlite3_mprintf_double {%d %d %f} 1 1 1e300
} {1 1 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.000000}

# The non-standard '!' flag on a 'g' conversion forces a decimal point
# and at least one digit on either side of the decimal point.
#
do_test printf-11.1 {
  sqlite3_mprintf_double {%d %d %!g} 1 1 1
} {1 1 1.0}
do_test printf-11.2 {
  sqlite3_mprintf_double {%d %d %!g} 1 1 123
} {1 1 123.0}
do_test printf-11.3 {
  sqlite3_mprintf_double {%d %d %!g} 1 1 12.3
} {1 1 12.3}
do_test printf-11.4 {
  sqlite3_mprintf_double {%d %d %!g} 1 1 0.123
} {1 1 0.123}
do_test printf-11.5 {
  sqlite3_mprintf_double {%d %d %!.15g} 1 1 1
} {1 1 1.0}
do_test printf-11.6 {
  sqlite3_mprintf_double {%d %d %!.15g} 1 1 1e10
} {1 1 10000000000.0}
do_test printf-11.7 {
  sqlite3_mprintf_double {%d %d %!.15g} 1 1 1e300
} {1 1 1.0e+300}

# Additional tests for coverage
#
do_test printf-12.1 {
  sqlite3_mprintf_double {%d %d %.2000g} 1 1 1.0
} {1 1 1}

# Floating point boundary cases
#
do_test printf-13.1 {
  sqlite3_mprintf_hexdouble %.20f 4024000000000000
} {10.00000000000000000000}
do_test printf-13.2 {
  sqlite3_mprintf_hexdouble %.20f 4197d78400000000
} {100000000.00000000000000000000}
do_test printf-13.3 {
  sqlite3_mprintf_hexdouble %.20f 4693b8b5b5056e17
} {100000000000000000000000000000000.00000000000000000000}
do_test printf-13.4 {
  sqlite3_mprintf_hexdouble %.20f 7ff0000000000000
} {Inf}
do_test printf-13.5 {
  sqlite3_mprintf_hexdouble %.20f fff0000000000000
} {-Inf}
do_test printf-13.6 {
  sqlite3_mprintf_hexdouble %.20f fff8000000000000
} {NaN}

do_test printf-14.1 {
  sqlite3_mprintf_str {abc-%y-123} 0 0 {not used}
} {abc-}
do_test printf-14.2 {
  sqlite3_mprintf_n_test {xyzzy}
} 5
do_test printf-14.3 {
  sqlite3_mprintf_str {abc-%T-123} 0 0 {not used}
} {abc-}

do_test printf-15.1 {
  sqlite3_snprintf_int 5 {12345} 0
} {1234}
do_test printf-15.2 {
  sqlite3_snprintf_int 5 {} 0
} {}
do_test printf-15.3 {
  sqlite3_snprintf_int 0 {} 0
} {abcdefghijklmnopqrstuvwxyz}

finish_test