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[/] [or1k/] [tags/] [start/] [insight/] [tcl/] [tests/] [if.test] - Rev 578
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# Commands covered: if
#
# This file contains a collection of tests for one or more of the Tcl
# built-in commands. Sourcing this file into Tcl runs the tests and
# generates output for errors. No output means no errors were found.
#
# Copyright (c) 1996 Sun Microsystems, Inc.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# RCS: @(#) $Id: if.test,v 1.1.1.1 2002-01-16 10:25:36 markom Exp $
if {[string compare test [info procs test]] == 1} then {source defs}
# Basic "if" operation.
catch {unset a}
test if-1.1 {TclCompileIfCmd: missing if/elseif test} {
list [catch {if} msg] $msg
} {1 {wrong # args: no expression after "if" argument}}
test if-1.2 {TclCompileIfCmd: error in if/elseif test} {
list [catch {if {[error "error in condition"]} foo} msg] $msg
} {1 {error in condition}}
test if-1.3 {TclCompileIfCmd: error in if/elseif test} {
list [catch {if {1+}} msg] $msg $errorInfo
} {1 {syntax error in expression "1+"} {syntax error in expression "1+"
("if" test expression)
while compiling
"if {1+}"}}
test if-1.4 {TclCompileIfCmd: if/elseif test in braces} {
set a {}
if {1<2} {set a 1}
set a
} {1}
test if-1.5 {TclCompileIfCmd: if/elseif test not in braces} {
set a {}
if 1<2 {set a 1}
set a
} {1}
test if-1.6 {TclCompileIfCmd: multiline test expr} {
set a {}
if {($tcl_platform(platform) != "foobar1") && \
($tcl_platform(platform) != "foobar2")} {set a 3} else {set a 4}
set a
} 3
test if-1.7 {TclCompileIfCmd: "then" after if/elseif test} {
set a {}
if 4>3 then {set a 1}
set a
} {1}
test if-1.8 {TclCompileIfCmd: keyword other than "then" after if/elseif test} {
set a {}
catch {if 1<2 therefore {set a 1}} msg
set msg
} {invalid command name "therefore"}
test if-1.9 {TclCompileIfCmd: missing "then" body} {
set a {}
catch {if 1<2 then} msg
set msg
} {wrong # args: no script following "then" argument}
test if-1.10 {TclCompileIfCmd: error in "then" body} {
set a {}
list [catch {if {$a!="xxx"} then {set}} msg] $msg $errorInfo
} {1 {wrong # args: should be "set varName ?newValue?"} {wrong # args: should be "set varName ?newValue?"
while compiling
"set"
("if" then script line 1)
while compiling
"if {$a!="xxx"} then {set}"}}
test if-1.11 {TclCompileIfCmd: error in "then" body} {
list [catch {if 2 then {[error "error in then clause"]}} msg] $msg
} {1 {error in then clause}}
test if-1.12 {TclCompileIfCmd: "then" body in quotes} {
set a {}
if 27>17 "append a x"
set a
} {x}
test if-1.13 {TclCompileIfCmd: computed "then" body} {
catch {unset x1}
catch {unset x2}
set a {}
set x1 {append a x1}
set x2 {; append a x2}
set a {}
if 1 $x1$x2
set a
} {x1x2}
test if-1.14 {TclCompileIfCmd: taking proper branch} {
set a {}
if 1<2 {set a 1}
set a
} 1
test if-1.15 {TclCompileIfCmd: taking proper branch} {
set a {}
if 1>2 {set a 1}
set a
} {}
test if-1.16 {TclCompileIfCmd: test jumpFalse instruction replacement after long "then" body} {
catch {unset i}
set a {}
if 1<2 {
set a 1
while {$a != "xxx"} {
break;
while {$i >= 0} {
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
set i [expr $i-1]
}
}
set a 2
while {$a != "xxx"} {
break;
while {$i >= 0} {
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
set i [expr $i-1]
}
}
set a 3
}
set a
} 3
test if-1.17 {TclCompileIfCmd: if/elseif test in quotes} {
set a {}
list [catch {if {"0 < 3"} {set a 1}} msg] $msg
} {1 {expected boolean value but got "0 < 3"}}
test if-2.1 {TclCompileIfCmd: "elseif" after if/elseif test} {
set a {}
if 3>4 {set a 1} elseif 1 {set a 2}
set a
} {2}
# Since "else" is optional, the "elwood" below is treated as a command.
# But then there shouldn't be any additional argument words for the "if".
test if-2.2 {TclCompileIfCmd: keyword other than "elseif"} {
set a {}
catch {if 1<2 {set a 1} elwood {set a 2}} msg
set msg
} {wrong # args: extra words after "else" clause in "if" command}
test if-2.3 {TclCompileIfCmd: missing expression after "elseif"} {
set a {}
catch {if 1<2 {set a 1} elseif} msg
set msg
} {wrong # args: no expression after "elseif" argument}
test if-2.4 {TclCompileIfCmd: error in expression after "elseif"} {
set a {}
list [catch {if 3>4 {set a 1} elseif {1>}} msg] $msg $errorInfo
} {1 {syntax error in expression "1>"} {syntax error in expression "1>"
("if" test expression)
while compiling
"if 3>4 {set a 1} elseif {1>}"}}
test if-2.5 {TclCompileIfCmd: test jumpFalse instruction replacement after long "elseif" body} {
catch {unset i}
set a {}
if 1>2 {
set a 1
while {$a != "xxx"} {
break;
while {$i >= 0} {
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
set i [expr $i-1]
}
}
set a 2
while {$a != "xxx"} {
break;
while {$i >= 0} {
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
set i [expr $i-1]
}
}
set a 3
} elseif 1<2 then { #; this if arm should be taken
set a 4
while {$a != "xxx"} {
break;
while {$i >= 0} {
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
set i [expr $i-1]
}
}
set a 5
while {$a != "xxx"} {
break;
while {$i >= 0} {
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
set i [expr $i-1]
}
}
set a 6
}
set a
} 6
test if-3.1 {TclCompileIfCmd: "else" clause} {
set a {}
if 3>4 {set a 1} elseif {$a == "foo"} {set a 2} else {set a 3}
set a
} 3
# Since "else" is optional, the "elsex" below is treated as a command.
# But then there shouldn't be any additional argument words for the "if".
test if-3.2 {TclCompileIfCmd: keyword other than "else"} {
set a {}
catch {if 1<2 then {set a 1} elsex {set a 2}} msg
set msg
} {wrong # args: extra words after "else" clause in "if" command}
test if-3.3 {TclCompileIfCmd: missing body after "else"} {
set a {}
catch {if 2<1 {set a 1} else} msg
set msg
} {wrong # args: no script following "else" argument}
test if-3.4 {TclCompileIfCmd: error compiling body after "else"} {
set a {}
catch {if 2<1 {set a 1} else {set}} msg
set errorInfo
} {wrong # args: should be "set varName ?newValue?"
while compiling
"set"
("if" else script line 1)
while compiling
"if 2<1 {set a 1} else {set}"}
test if-3.5 {TclCompileIfCmd: extra arguments after "else" argument} {
set a {}
catch {if 2<1 {set a 1} else {set a 2} or something} msg
set msg
} {wrong # args: extra words after "else" clause in "if" command}
# The following test also checks whether contained loops and other
# commands are properly relocated because a short jump must be replaced
# by a "long distance" one.
test if-3.6 {TclCompileIfCmd: test jumpFalse instruction replacement after long "else" clause} {
catch {unset i}
set a {}
if 1>2 {
set a 1
while {$a != "xxx"} {
break;
while {$i >= 0} {
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
set i [expr $i-1]
}
}
set a 2
while {$a != "xxx"} {
break;
while {$i >= 0} {
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
set i [expr $i-1]
}
}
set a 3
} elseif 1==2 then { #; this if arm should be taken
set a 4
while {$a != "xxx"} {
break;
while {$i >= 0} {
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
set i [expr $i-1]
}
}
set a 5
while {$a != "xxx"} {
break;
while {$i >= 0} {
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
set i [expr $i-1]
}
}
set a 6
} else {
set a 7
while {$a != "xxx"} {
break;
while {$i >= 0} {
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
set i [expr $i-1]
}
}
set a 8
while {$a != "xxx"} {
break;
while {$i >= 0} {
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
if {[string compare $a "bar"] < 0} {
set i $i
set i [lindex $s $i]
}
set i [expr $i-1]
}
}
set a 9
}
set a
} 9
test if-4.1 {TclCompileIfCmd: "if" command result} {
set a {}
set a [if 3<4 {set i 27}]
set a
} 27
test if-4.2 {TclCompileIfCmd: "if" command result} {
set a {}
set a [if 3>4 {set i 27}]
set a
} {}
test if-4.3 {TclCompileIfCmd: "if" command result} {
set a {}
set a [if 0 {set i 1} elseif 1 {set i 2}]
set a
} 2
test if-4.4 {TclCompileIfCmd: "if" command result} {
set a {}
set a [if 0 {set i 1} elseif 0 {set i 2} elseif 2>5 {set i 3} else {set i 4}]
set a
} 4
test if-4.5 {TclCompileIfCmd: return value} {
if 0 then {set a 22; concat abc} elseif 1 {concat def} {concat ghi}
} def
# Check "if" and computed command names.
test if-5.1 {if and computed command names} {
set i 0
set z if
$z 1 {
set i 1
}
set i
} 1
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