path: root/tcl8.6/pkgs/itcl4.1.2/tests/body.test

#
# Tests for "body" and "configbody" commands
# ----------------------------------------------------------------------
#   AUTHOR:  Michael J. McLennan
#            Bell Labs Innovations for Lucent Technologies
#            mmclennan@lucent.com
#            http://www.tcltk.com/itcl
# ----------------------------------------------------------------------
#            Copyright (c) 1993-1998  Lucent Technologies, Inc.
# ======================================================================
# See the file "license.terms" for information on usage and
# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.

package require tcltest 2.1
namespace import ::tcltest::test
::tcltest::loadTestedCommands
package require itcl

# ----------------------------------------------------------------------
#  Test "body" command
# ----------------------------------------------------------------------
test body-1.1 {define a class with missing bodies and arg lists} {
    itcl::class test_body {
        constructor {args} {}
        destructor {}

        method any
        method zero {}
        method one {x}
        method two {x y}
        method defvals {x {y 0} {z 1}}
        method varargs {x args}

        method override {mesg} {
            return "override: $mesg"
        }
    }
} ""

test body-1.2 {cannot use methods without a body} {
    test_body #auto
    list [catch "test_body0 any" msg] $msg
} {1 {member function "::test_body::any" is not defined and cannot be autoloaded}}

test body-1.3 {check syntax of "body" command} {
    list [catch "itcl::body test_body::any" msg] $msg
} {1 {wrong # args: should be "itcl::body class::func arglist body"}}

test body-1.4 {make sure members are found correctly} {
    list [catch "itcl::body test_body::xyzzyxyzzyxyzzy {} {}" msg] $msg
} {1 {function "xyzzyxyzzyxyzzy" is not defined in class "::test_body"}}

test body-1.5a {members without an argument list can have any args} {
    itcl::body test_body::any {} {return "any"}
    list [catch "test_body0 any" msg] $msg
} {0 any}

test body-1.5b {members without an argument list can have any args} {
    itcl::body test_body::any {x} {return "any: $x"}
    list [catch "test_body0 any 1" msg] $msg
} {0 {any: 1}}

test body-1.5c {members without an argument list can have any args} {
    itcl::body test_body::any {x {y 2}} {return "any: $x $y"}
    list [catch "test_body0 any 1" msg] $msg
} {0 {any: 1 2}}

test body-1.6a {an empty argument list must stay empty} {
    list [catch {itcl::body test_body::zero {x y} {return "zero: $x $y"}} msg] $msg
} {1 {argument list changed for function "::test_body::zero": should be ""}}

test body-1.6b {an empty argument list must stay empty} {
    list [catch {itcl::body test_body::zero {} {return "zero"}} msg] $msg
} {0 {}}

test body-1.7a {preserve argument list:  fixed arguments} {
    list [catch {itcl::body test_body::one {x y} {return "one: $x $y"}} msg] $msg
} {1 {argument list changed for function "::test_body::one": should be "x"}}

test body-1.7b {preserve argument list:  fixed arguments} {
    list [catch {itcl::body test_body::one {a} {return "one: $a"}} msg] $msg
} {0 {}}

test body-1.7c {preserve argument list:  fixed arguments} {
    list [catch "test_body0 one 1.0" msg] $msg
} {0 {one: 1.0}}

test body-1.8a {preserve argument list:  fixed arguments} {
    list [catch {itcl::body test_body::two {x} {return "two: $x"}} msg] $msg
} {1 {argument list changed for function "::test_body::two": should be "x y"}}

test body-1.8b {preserve argument list:  fixed arguments} {
    list [catch {itcl::body test_body::two {a b} {return "two: $a $b"}} msg] $msg
} {0 {}}

test body-1.8c {preserve argument list:  fixed arguments} {
    list [catch "test_body0 two 2.0 3.0" msg] $msg
} {0 {two: 2.0 3.0}}

test body-1.9a {preserve argument list:  default arguments} {
    list [catch {itcl::body test_body::defvals {x} {}} msg] $msg
} {1 {argument list changed for function "::test_body::defvals": should be "x {y 0} {z 1}"}}

test body-1.9b {preserve argument list:  default arguments} {
    list [catch {itcl::body test_body::defvals {a {b 0} {c 2}} {}} msg] $msg
} {1 {argument list changed for function "::test_body::defvals": should be "x {y 0} {z 1}"}}

test body-1.9c {preserve argument list:  default arguments} {
    list [catch {itcl::body test_body::defvals {a {b 0} {c 1}} {}} msg] $msg
} {0 {}}

test body-1.10a {preserve argument list:  variable arguments} {
    list [catch {itcl::body test_body::varargs {} {}} msg] $msg
} {1 {argument list changed for function "::test_body::varargs": should be "x args"}}

test body-1.10b {preserve argument list:  variable arguments} {
    list [catch {itcl::body test_body::varargs {a} {}} msg] $msg
} {0 {}}

test body-1.10c {preserve argument list:  variable arguments} {
    list [catch {itcl::body test_body::varargs {a b c} {}} msg] $msg
} {0 {}}

test body-1.11 {redefined body really does change} {
    list [test_body0 override "test #1"] \
         [itcl::body test_body::override {text} {return "new: $text"}] \
         [test_body0 override "test #2"]
} {{override: test #1} {} {new: test #2}}


# ----------------------------------------------------------------------
#  Test "body" command with inheritance
# ----------------------------------------------------------------------
test body-2.1 {inherit from a class with missing bodies} {
    itcl::class test_ibody {
        inherit test_body
        method zero {}
    }
    test_ibody #auto
} {test_ibody0}

test body-2.2 {redefine a method in a derived class} {
    itcl::body test_ibody::zero {} {return "ibody zero"}
    list [test_ibody0 info function zero] \
         [test_ibody0 info function test_body::zero]
} {{public method ::test_ibody::zero {} {return "ibody zero"}} {public method ::test_body::zero {} {return "zero"}}}

test body-2.3 {try to redefine a method that was not declared} {
    list [catch {itcl::body test_ibody::one {x} {return "new"}} msg] $msg
} {1 {function "one" is not defined in class "::test_ibody"}}

::itcl::delete class test_body

# ----------------------------------------------------------------------
#  Test "configbody" command
# ----------------------------------------------------------------------
test body-3.1 {define a class with public variables} {
    itcl::class test_cbody {
        private variable priv
        protected variable prot

        public variable option {} {
            lappend messages "option: $option"
        }
        public variable nocode {}
        public common messages
    }
} ""

test body-3.2 {check syntax of "configbody" command} {
    list [catch "itcl::configbody test_cbody::option" msg] $msg
} {1 {wrong # args: should be "itcl::configbody class::option body"}}

test body-3.3 {make sure that members are found correctly} {
    list [catch "itcl::configbody test_cbody::xyzzy {}" msg] $msg
} {1 {option "xyzzy" is not defined in class "::test_cbody"}}

test body-3.4 {private variables have no config code} {
    list [catch "itcl::configbody test_cbody::priv {bogus}" msg] $msg
} {1 {option "::test_cbody::priv" is not a public configuration option}}

test body-3.5 {protected variables have no config code} {
    list [catch "itcl::configbody test_cbody::prot {bogus}" msg] $msg
} {1 {option "::test_cbody::prot" is not a public configuration option}}

test body-3.6 {can use public variables without a body} {
    test_cbody #auto
    list [catch "test_cbody0 configure -nocode 1" msg] $msg
} {0 {}}

test body-3.7 {redefined body really does change} {
    list [test_cbody0 configure -option "hello"] \
         [itcl::configbody test_cbody::option {lappend messages "new: $option"}] \
         [test_cbody0 configure -option "goodbye"] \
         [set test_cbody::messages] \
} {{} {} {} {{option: hello} {new: goodbye}}}

# ----------------------------------------------------------------------
#  Test "configbody" command with inheritance
# ----------------------------------------------------------------------
test body-4.1 {inherit from a class with missing config bodies} {
    itcl::class test_icbody {
        inherit test_cbody
        public variable option "icbody"
    }
    test_icbody #auto
} {test_icbody0}

test body-4.2 {redefine a body in a derived class} {
    itcl::configbody test_icbody::option {lappend messages "test_icbody: $option"}
    list [test_icbody0 info variable option] \
         [test_icbody0 info variable test_cbody::option]
} {{public variable ::test_icbody::option icbody {lappend messages "test_icbody: $option"} icbody} {public variable ::test_cbody::option {} {lappend messages "new: $option"} {}}}

test body-4.3 {try to redefine a body for a variable that was not declared} {
    list [catch {itcl::configbody test_icbody::nocode {return "new"}} msg] $msg
} {1 {option "nocode" is not defined in class "::test_icbody"}}

test body-5.1 {redefine constructors} -setup {
    unset -nocomplain answer
    itcl::class B {constructor {} {lappend ::answer B}}
    itcl::class D {inherit B; constructor {} {lappend ::answer A}}
} -body {
    D d1
    itcl::body D::constructor {} {lappend ::answer D}
    D d2
    set ::answer
} -cleanup {
    itcl::delete class B 
    unset -nocomplain answer
} -result {B A B D}

test body-6.1 {redefine class proc body} -setup {
    unset -nocomplain ::answer
    itcl::class C {
	proc cheshire {} {
	    lappend ::answer x
	    itcl::body ::C::cheshire {} {}
	}
	constructor {args} {cheshire}
    }
} -body {
    itcl::delete object [C #auto]
    itcl::delete object [C #auto]
    itcl::delete object [C #auto]
    set ::answer
} -cleanup {
    itcl::delete class C
    unset -nocomplain ::answer
} -result x

# ----------------------------------------------------------------------
#  Clean up
# ----------------------------------------------------------------------

itcl::delete class test_cbody

::tcltest::cleanupTests
return