# This file contains tests for the package and ::pkg::* commands.
# Note that the tests are limited to Tcl scripts only, there are no shared
# libraries against which to test.
#
# Sourcing this file into Tcl runs the tests and generates output for errors.
# No output means no errors were found.
#
# Copyright © 1995-1996 Sun Microsystems, Inc.
# Copyright © 1998-1999 Scriptics Corporation.
# Copyright © 2011 Donal K. Fellows
#
# See the file "license.terms" for information on usage and redistribution of
# this file, and for a DISCLAIMER OF ALL WARRANTIES.

if {"::tcltest" ni [namespace children]} {
    package require tcltest 2.5
    namespace import -force ::tcltest::*
}

::tcltest::loadTestedCommands
catch [list package require -exact tcl::test [info patchlevel]]

# Do all this in a child interp to avoid garbaging the package list
set i [interp create]
tcltest::loadIntoChildInterpreter $i {*}$argv
catch [list load {} Tcltest $i]
interp eval $i {
namespace import -force ::tcltest::*
#package forget {*}[package names]
set oldPkgUnknown [package unknown]
package unknown {}
set oldPath $auto_path
set auto_path ""

testConstraint testpreferstable [llength [info commands testpreferstable]]

test package-1.1 {pkg::create gives error on insufficient args} -body {
    ::pkg::create
} -returnCodes error -match glob -result {wrong # args: should be "*"}
test package-1.2 {pkg::create gives error on bad args} -body {
    ::pkg::create -foo bar -bar baz -baz boo
} -returnCodes error -match glob -result {unknown option "bar": *}
test package-1.3 {pkg::create gives error on no value given} -body {
    ::pkg::create -name foo -version 1.0 -source test.tcl -load
} -returnCodes error -match glob -result {value for "-load" missing: *}
test package-1.4 {pkg::create gives error on no name given} -body {
    ::pkg::create -version 1.0 -source test.tcl -load foo.so
} -returnCodes error -match glob -result {value for "-name" missing: *}
test package-1.5 {pkg::create gives error on no version given} -body {
    ::pkg::create -name foo -source test.tcl -load foo.so
} -returnCodes error -match glob -result {value for "-version" missing: *}
test package-1.6 {pkg::create gives error on no source or load options} -body {
    ::pkg::create -name foo -version 1.0 -version 2.0
} -returnCodes error -result {at least one of -load and -source must be given}
test package-1.7 {pkg::create gives correct output for 1 direct source} {
    ::pkg::create -name foo -version 1.0 -source test.tcl
} {package ifneeded foo 1.0 [list source [file join $dir test.tcl]]}
test package-1.8 {pkg::create gives correct output for 2 direct sources} {
    ::pkg::create -name foo -version 1.0 -source test.tcl -source test2.tcl
} {package ifneeded foo 1.0 [list source [file join $dir test.tcl]]\n[list source [file join $dir test2.tcl]]}
test package-1.9 {pkg::create gives correct output for 1 direct load} {
    ::pkg::create -name foo -version 1.0 -load test.so
} {package ifneeded foo 1.0 [list load [file join $dir test.so]]}
test package-1.10 {pkg::create gives correct output for 2 direct loads} {
    ::pkg::create -name foo -version 1.0 -load test.so -load test2.so
} {package ifneeded foo 1.0 [list load [file join $dir test.so]]\n[list load [file join $dir test2.so]]}
test package-1.11 {pkg::create gives correct output for 1 lazy source} {
    ::pkg::create -name foo -version 1.0 -source {test.tcl {foo bar}}
} {package ifneeded foo 1.0 [list tclPkgSetup $dir foo 1.0 {{test.tcl source {foo bar}}}]}
test package-1.12 {pkg::create gives correct output for 2 lazy sources} {
    ::pkg::create -name foo -version 1.0 -source {test.tcl {foo bar}} \
	    -source {test2.tcl {baz boo}}
} {package ifneeded foo 1.0 [list tclPkgSetup $dir foo 1.0 {{test.tcl source {foo bar}} {test2.tcl source {baz boo}}}]}
test package-1.13 {pkg::create gives correct output for 1 lazy load} {
    ::pkg::create -name foo -version 1.0 -load {test.so {foo bar}}
} {package ifneeded foo 1.0 [list tclPkgSetup $dir foo 1.0 {{test.so load {foo bar}}}]}
test package-1.14 {pkg::create gives correct output for 2 lazy loads} {
    ::pkg::create -name foo -version 1.0 -load {test.so {foo bar}} \
	    -load {test2.so {baz boo}}
} {package ifneeded foo 1.0 [list tclPkgSetup $dir foo 1.0 {{test.so load {foo bar}} {test2.so load {baz boo}}}]}
test package-1.15 {pkg::create gives correct output for 1 each, direct} {
    ::pkg::create -name foo -version 1.0 -source test.tcl -load test2.so
} {package ifneeded foo 1.0 [list load [file join $dir test2.so]]\n[list source [file join $dir test.tcl]]}
test package-1.16 {pkg::create gives correct output for 1 direct, 1 lazy} {
    ::pkg::create -name foo -version 1.0 -source test.tcl \
	    -source {test2.tcl {foo bar}}
} {package ifneeded foo 1.0 [list source [file join $dir test.tcl]]\n[list tclPkgSetup $dir foo 1.0 {{test2.tcl source {foo bar}}}]}

test package-2.1 {Tcl_PkgProvide procedure} {
    package forget t
    package provide t 2.3
} {}
test package-2.2 {Tcl_PkgProvide procedure} -returnCodes error -setup {
    package forget t
} -body {
    package provide t 2.3
    package provide t 2.2
} -result {conflicting versions provided for package "t": 2.3, then 2.2}
test package-2.3 {Tcl_PkgProvide procedure} -returnCodes error -setup {
    package forget t
} -body {
    package provide t 2.3
    package provide t 2.4
} -result {conflicting versions provided for package "t": 2.3, then 2.4}
test package-2.4 {Tcl_PkgProvide procedure} -returnCodes error -setup {
    package forget t
} -body {
    package provide t 2.3
    package provide t 3.3
} -result {conflicting versions provided for package "t": 2.3, then 3.3}
test package-2.5 {Tcl_PkgProvide procedure} -setup {
    package forget t
} -body {
    package provide t 2.3
    package provide t 2.3
} -result {}
test package-2.6 {Tcl_PkgProvide procedure} {
    package forget t
    package provide t 2.3a1
} {}

set n 0
foreach v {
    2.3k1 2a3a2 2ab3 2.a4 2.b4 2b.4 2a.4 2ba4 2a4b1
    2b4a1 2b3b2
} {
    test package-2.7.$n {Tcl_PkgProvide procedure} -setup {
	package forget t
    } -returnCodes error -body "
	package provide t $v
    " -result "expected version number but got \"$v\""
    incr n
}

test package-3.1 {Tcl_PkgRequire procedure, picking best version} -setup {
    package forget t
    set x xxx
} -body {
    foreach i {1.4 3.4 2.3 2.4 2.2} {
	package ifneeded t $i "set x $i; package provide t $i"
    }
    package require t
    set x
} -result {3.4}
test package-3.2 {Tcl_PkgRequire procedure, picking best version} -setup {
    package forget t
    set x xxx
} -body {
    foreach i {1.4 3.4 2.3 2.4 2.2 3.5 3.2} {
	package ifneeded t $i "set x $i; package provide t $i"
    }
    package require t
    set x
} -result {3.5}
test package-3.3 {Tcl_PkgRequire procedure, picking best version} -setup {
    package forget t
    set x xxx
} -body {
    foreach i {3.5 2.1 2.3} {
	package ifneeded t $i "set x $i; package provide t $i"
    }
    package require t 2.2
    set x
} -result {2.3}
test package-3.4 {Tcl_PkgRequire procedure, picking best version} -setup {
    package forget t
    set x xxx
} -body {
    foreach i {1.4 3.4 2.3 2.4 2.2} {
	package ifneeded t $i "set x $i; package provide t $i"
    }
    package require -exact t 2.3
    set x
} -result {2.3}
test package-3.5 {Tcl_PkgRequire procedure, picking best version} -setup {
    package forget t
    set x xxx
} -body {
    foreach i {1.4 3.4 2.3 2.4 2.2} {
	package ifneeded t $i "set x $i; package provide t $i"
    }
    package require t 2.1
    set x
} -result {2.4}
test package-3.6 {Tcl_PkgRequire procedure, can't find suitable version} -setup {
    package forget t
} -returnCodes error -body {
    package unknown {}
    foreach i {1.4 3.4 2.3 2.4 2.2} {
	package ifneeded t $i "set x $i"
    }
    package require t 2.5
} -result {can't find package t 2.5}
test package-3.7 {Tcl_PkgRequire procedure, can't find suitable version} -setup {
    package forget t
} -returnCodes error -body {
    package unknown {}
    foreach i {1.4 3.4 2.3 2.4 2.2} {
	package ifneeded t $i "set x $i"
    }
    package require t 4.1
} -result {can't find package t 4.1}
test package-3.8 {Tcl_PkgRequire procedure, can't find suitable version} -setup {
    package forget t
} -returnCodes error -body {
    package unknown {}
    foreach i {1.4 3.4 2.3 2.4 2.2} {
	package ifneeded t $i "set x $i"
    }
    package require -exact t 1.3
} -result {can't find package t exactly 1.3}
test package-3.9 {Tcl_PkgRequire procedure, can't find suitable version} -setup {
    package forget t
} -returnCodes error -body {
    package unknown {}
    package require t
} -result {can't find package t}
test package-3.10 {Tcl_PkgRequire procedure, error in ifneeded script} -setup {
    package forget t
} -body {
    package ifneeded t 2.1 {package provide t 2.1; error "ifneeded test"}
    list [catch {package require t 2.1} msg] $msg $::errorInfo
} -match glob -result {1 {ifneeded test} {ifneeded test
    while executing
"error "ifneeded test""
    ("package ifneeded*" script)
    invoked from within
"package require t 2.1"}}
test package-3.11 {Tcl_PkgRequire procedure, ifneeded script doesn't provide package} -setup {
    package forget t
    set x xxx
} -body {
    package ifneeded t 2.1 "set x invoked"
    list [catch {package require t 2.1} msg] $msg $x
} -match glob -result {1 * invoked}
test package-3.12 {Tcl_PkgRequire procedure, self-deleting script} -setup {
    package forget t
    set x xxx
} -body {
    package ifneeded t 1.2 "package forget t; set x 1.2; package provide t 1.2"
    package require t 1.2
    set x
} -result {1.2}
test package-3.13 {Tcl_PkgRequire procedure, "package unknown" support} -setup {
    package forget t
    set x xxx
} -body {
    proc pkgUnknown args {
	# args = name requirement
	# requirement = v-v (for exact version)
	global x
	set x $args
	package provide [lindex $args 0] [lindex [split [lindex $args 1] -] 0]
    }
    foreach i {1.4 3.4 2.3 2.4 2.2} {
	package ifneeded t $i "set x $i"
    }
    package unknown pkgUnknown
    package require -exact t 1.5
    set x
} -cleanup {
    package unknown {}
} -result {t 1.5-1.5}
test package-3.14 {Tcl_PkgRequire procedure, "package unknown" support} -setup {
    package forget t
    set x xxx
} -body {
    proc pkgUnknown args {
	package ifneeded t 1.2 "set x loaded; package provide t 1.2"
    }
    package unknown pkgUnknown
    list [package require t] $x
} -cleanup {
    package unknown {}
} -result {1.2 loaded}
test package-3.15 {Tcl_PkgRequire procedure, "package unknown" support} -setup {
    package forget {a b}
    package unknown pkgUnknown
    set x xxx
} -body {
    proc pkgUnknown args {
	global x
	set x $args
	package provide [lindex $args 0] 2.0
    }
    package require {a b}
    set x
} -cleanup {
    package unknown {}
} -result {{a b} 0-}
test package-3.16 {Tcl_PkgRequire procedure, "package unknown" error} -setup {
    package forget t
} -body {
    proc pkgUnknown args {
	error "testing package unknown"
    }
    package unknown pkgUnknown
    list [catch {package require t} msg] $msg $::errorInfo
} -cleanup {
    package unknown {}
} -result {1 {testing package unknown} {testing package unknown
    while executing
"error "testing package unknown""
    (procedure "pkgUnknown" line 2)
    invoked from within
"pkgUnknown t 0-"
    ("package unknown" script)
    invoked from within
"package require t"}}
test package-3.17 {Tcl_PkgRequire procedure, "package unknown" doesn't load package} -setup {
    package forget t
    set x xxx
} -body {
    proc pkgUnknown args {
	global x
	set x $args
    }
    foreach i {1.4 3.4 2.3 2.4 2.2} {
	package ifneeded t $i "set x $i"
    }
    package unknown pkgUnknown
    list [catch {package require -exact t 1.5} msg] $msg $x
} -cleanup {
    package unknown {}
} -result {1 {can't find package t exactly 1.5} {t 1.5-1.5}}
test package-3.18 {Tcl_PkgRequire procedure, version checks} -setup {
    package forget t
} -body {
    package provide t 2.3
    package require t
} -result {2.3}
test package-3.19 {Tcl_PkgRequire procedure, version checks} -setup {
    package forget t
} -body {
    package provide t 2.3
    package require t 2.1
} -result {2.3}
test package-3.20 {Tcl_PkgRequire procedure, version checks} -setup {
    package forget t
} -body {
    package provide t 2.3
    package require t 2.3
} -result {2.3}
test package-3.21 {Tcl_PkgRequire procedure, version checks} -setup {
    package forget t
} -returnCodes error -body {
    package provide t 2.3
    package require t 2.4
} -result {version conflict for package "t": have 2.3, need 2.4}
test package-3.22 {Tcl_PkgRequire procedure, version checks} -setup {
    package forget t
} -returnCodes error -body {
    package provide t 2.3
    package require t 1.2
} -result {version conflict for package "t": have 2.3, need 1.2}
test package-3.23 {Tcl_PkgRequire procedure, version checks} -setup {
    package forget t
} -body {
    package provide t 2.3
    package require -exact t 2.3
} -result {2.3}
test package-3.24 {Tcl_PkgRequire procedure, version checks} -setup {
    package forget t
} -returnCodes error -body {
    package provide t 2.3
    package require -exact t 2.2
} -result {version conflict for package "t": have 2.3, need exactly 2.2}
test package-3.25 {Tcl_PkgRequire procedure, error in ifneeded script} -setup {
    package forget t
} -body {
    package ifneeded t 2.1 {package provide t 2.1; error "ifneeded test" EI}
    list [catch {package require t 2.1} msg] $msg $::errorInfo
} -match glob -result {1 {ifneeded test} {EI
    ("package ifneeded*" script)
    invoked from within
"package require t 2.1"}}
test package-3.26 {Tcl_PkgRequire procedure, error in ifneeded script} -setup {
    package forget t
} -body {
    package ifneeded t 2.1 {package provide t 2.1; foreach x 1 {error "ifneeded test" EI}}
    list [catch {package require t 2.1} msg] $msg $::errorInfo
} -match glob -result {1 {ifneeded test} {EI
    ("foreach" body line 1)
    invoked from within
"foreach x 1 {error "ifneeded test" EI}"
    ("package ifneeded*" script)
    invoked from within
"package require t 2.1"}}
test package-3.27 {Tcl_PkgRequire: circular dependency} -setup {
    package forget foo
} -body {
    package ifneeded foo 1 {package require foo 1}
    package require foo 1
} -cleanup {
    package forget foo
} -returnCodes error -match glob -result {circular package dependency:*}
test package-3.28 {Tcl_PkgRequire: circular dependency} -setup {
    package forget foo
} -body {
    package ifneeded foo 1 {package require foo 2}
    package require foo 1
} -cleanup {
    package forget foo
} -returnCodes error -match glob -result {circular package dependency:*}
test package-3.29 {Tcl_PkgRequire: circular dependency} -setup {
    package forget foo
    package forget bar
} -body {
    package ifneeded foo 1 {package require bar 1; package provide foo 1}
    package ifneeded bar 1 {package require foo 1; package provide bar 1}
    package require foo 1
} -cleanup {
    package forget foo
    package forget bar
} -returnCodes error -match glob -result {circular package dependency:*}
test package-3.30 {Tcl_PkgRequire: circular dependency} -setup {
    package forget foo
    package forget bar
} -body {
    package ifneeded foo 1 {package require bar 1; package provide foo 1}
    package ifneeded foo 2 {package provide foo 2}
    package ifneeded bar 1 {package require foo 2; package provide bar 1}
    package require foo 1
} -cleanup {
    package forget foo
    package forget bar
} -returnCodes error -match glob -result {circular package dependency:*}
test package-3.31 {Tcl_PkgRequire: consistent return values (1162286)} -setup {
    package forget foo
} -body {
    package ifneeded foo 1 {package provide foo 1; error foo}
    package require foo 1
} -cleanup {
    package forget foo
} -returnCodes error -match glob -result foo
test package-3.32 {Tcl_PkgRequire: consistent return values (1162286)} -setup {
    package forget foo
} -body {
    package ifneeded foo 1 {package provide foo 1; error foo}
    catch {package require foo 1}
    package provide foo
} -cleanup {
    package forget foo
} -result {}
test package-3.33 {Tcl_PkgRequire: consistent return values (1162286)} -setup {
    package forget foo
} -body {
    package ifneeded foo 1 {package provide foo 2}
    package require foo 1
} -cleanup {
    package forget foo
} -returnCodes error -match glob -result {attempt to provide package * failed:*}
test package-3.34 {Tcl_PkgRequire: consistent return values (1162286)} -setup {
    package forget foo
} -body {
    package ifneeded foo 1 {package provide foo 1.1}
    package require foo 1
} -cleanup {
    package forget foo
} -returnCodes error -match glob -result {attempt to provide package * failed:*}
test package-3.34.1 {Tcl_PkgRequire: consistent return values (1162286)} -setup {
    package forget foo
} -body {
    package ifneeded foo 1.1 {package provide foo 1}
    package require foo 1
} -cleanup {
    package forget foo
} -returnCodes error -match glob -result {attempt to provide package * failed:*}
test package-3.34.2 {Tcl_PkgRequire: consistent return values (1162286)} -setup {
    package forget foo
} -body {
    package ifneeded foo 1.1 {package provide foo 1}
    package require foo 1.1
} -cleanup {
    package forget foo
} -returnCodes error -match glob -result {attempt to provide package * failed:*}
test package-3.35 {Tcl_PkgRequire: consistent return values (1162286)} -setup {
    package forget foo
} -body {
    package ifneeded foo 1 {}
    package require foo 1
} -cleanup {
    package forget foo
} -returnCodes error -match glob -result {attempt to provide package * failed:*}
test package-3.35.1 {Tcl_PkgRequire: consistent return values (1162286)} -setup {
    package forget foo
} -body {
    package ifneeded foo 1 {break}
    package require foo 1
} -cleanup {
    package forget foo
} -returnCodes error -match glob \
-result {attempt to provide package * failed: bad return code:*}
test package-3.36 {Tcl_PkgRequire: consistent return values (1162286)} -setup {
    package forget foo
} -body {
    package ifneeded foo 1 {continue}
    package require foo 1
} -cleanup {
    package forget foo
} -returnCodes error -match glob \
-result {attempt to provide package * failed: bad return code:*}
test package-3.37 {Tcl_PkgRequire: consistent return values (1162286)} -setup {
    package forget foo
} -body {
    package ifneeded foo 1 {return}
    package require foo 1
} -cleanup {
    package forget foo
} -returnCodes error -match glob \
-result {attempt to provide package * failed: bad return code:*}
test package-3.38 {Tcl_PkgRequire: consistent return values (1162286)} -setup {
    package forget foo
} -body {
    package ifneeded foo 1 {return -level 0 -code 10}
    package require foo 1
} -cleanup {
    package forget foo
} -returnCodes error -match glob \
-result {attempt to provide package * failed: bad return code:*}
test package-3.39 {Tcl_PkgRequire: consistent return values (1162286)} -setup {
    package forget foo
    set saveUnknown [package unknown]
    package unknown {package provide foo 2 ;#}
} -body {
    package require foo 1
} -cleanup {
    package forget foo
    package unknown $saveUnknown
} -returnCodes error -match glob -result *
test package-3.40 {Tcl_PkgRequire: consistent return values (1162286)} -setup {
    package forget foo
    set saveUnknown [package unknown]
    package unknown {break ;#}
} -body {
    package require foo 1
} -cleanup {
    package forget foo
    package unknown $saveUnknown
} -returnCodes error -match glob -result {bad return code:*}
test package-3.41 {Tcl_PkgRequire: consistent return values (1162286)} -setup {
    package forget foo
    set saveUnknown [package unknown]
    package unknown {continue ;#}
} -body {
    package require foo 1
} -cleanup {
    package forget foo
    package unknown $saveUnknown
} -returnCodes error -match glob -result {bad return code:*}
test package-3.42 {Tcl_PkgRequire: consistent return values (1162286)} -setup {
    package forget foo
    set saveUnknown [package unknown]
    package unknown {return ;#}
} -body {
    package require foo 1
} -cleanup {
    package forget foo
    package unknown $saveUnknown
} -returnCodes error -match glob -result {bad return code:*}
test package-3.43 {Tcl_PkgRequire: consistent return values (1162286)} -setup {
    package forget foo
    set saveUnknown [package unknown]
    package unknown {return -level 0 -code 10 ;#}
} -body {
    package require foo 1
} -cleanup {
    package forget foo
    package unknown $saveUnknown
} -returnCodes error -match glob -result {bad return code:*}
test package-3.44 {Tcl_PkgRequire: exact version matching (1578344)} -setup {
    package provide demo 1.2.3
} -body {
    package require -exact demo 1.2
} -returnCodes error -cleanup {
    package forget demo
} -result {version conflict for package "demo": have 1.2.3, need exactly 1.2}
test package-3.50 {Tcl_PkgRequire procedure, picking best stable version} -constraints testpreferstable -setup {
    interp create child
    load {} Tcltest child
    child eval {
    testpreferstable
    package forget t
    set x xxx
    }
} -body {
    child eval {
    foreach i {1.4 3.4 4.0a1 2.3 2.4 2.2} {
	package ifneeded t $i "set x $i; package provide t $i"
    }
    package require t
    set x
    }
} -cleanup {
    interp delete child
} -result {3.4}
test package-3.51 {Tcl_PkgRequire procedure, picking best stable version} -setup {
    package forget t
    set x xxx
} -body {
    foreach i {1.2b1 1.2 1.3a2 1.3} {
	package ifneeded t $i "set x $i; package provide t $i"
    }
    package require t
    set x
} -result {1.3}
test package-3.52 {Tcl_PkgRequire procedure, picking best stable version} -setup {
    package forget t
    set x xxx
} -body {
    foreach i {1.2b1 1.2 1.3 1.3a2} {
	package ifneeded t $i "set x $i; package provide t $i"
    }
    package require t
    set x
} -result {1.3}
test pkg-3.53 {Tcl_PkgRequire procedure, picking best stable version} -constraints testpreferstable -setup {
    testpreferstable
    package forget t
    set x xxx
} -body {
    foreach i {1.2b1 1.1} {
        package ifneeded t $i "set x $i; package provide t $i"
    }
    package require t
    set x
} -result {1.1}
test package-3.54 {Tcl_PkgRequire procedure, coroutine support} -setup {
    package forget t
} -body {
    coroutine coro1 apply {{} {
	package ifneeded t 2.1 {
	    yield
	    package provide t 2.1
	}
	package require t 2.1
    }}
    list [catch {coro1} msg] $msg
} -match glob -result {0 2.1}


test package-4.1 {Tcl_PackageCmd procedure} -returnCodes error -body {
    package
} -result {wrong # args: should be "package option ?arg ...?"}
test package-4.2 {Tcl_PackageCmd procedure, "forget" option} -setup {
    interp create child
} -body {
    child eval {
    package forget {*}[package names]
    package names
    }
} -cleanup {
    interp delete child
} -result {}
test package-4.3 {Tcl_PackageCmd procedure, "forget" option} -setup {
    interp create child
} -body {
    child eval {
    package forget {*}[package names]
    package forget foo
    }
} -cleanup {
    interp delete child
} -result {}
test package-4.4 {Tcl_PackageCmd procedure, "forget" option} -setup {
    interp create child
    child eval {
    package forget {*}[package names]
    set result {}
    }
} -body {
    child eval {
    package ifneeded t 1.1 {first script}
    package ifneeded t 2.3 {second script}
    package ifneeded x 1.4 {x's script}
    lappend result [lsort [package names]] [package versions t]
    package forget t
    lappend result [lsort [package names]] [package versions t]
    }
} -cleanup {
    interp delete child
} -result {{t x} {1.1 2.3} x {}}
test package-4.5 {Tcl_PackageCmd procedure, "forget" option} -setup {
    interp create child
    child eval {
    package forget {*}[package names]
    }
} -body {
    child eval {
    package ifneeded a 1.1 {first script}
    package ifneeded b 2.3 {second script}
    package ifneeded c 1.4 {third script}
    package forget
    set result [list [lsort [package names]]]
    package forget a c
    lappend result [lsort [package names]]
    }
} -cleanup {
    interp delete child
} -result {{a b c} b}
test package-4.5.1 {Tcl_PackageCmd procedure, "forget" option} -body {
    # Test for Bug 415273
    package ifneeded a 1 "I should have been forgotten"
    package forget no-such-package a
    package ifneeded a 1
} -cleanup {
    package forget a
} -result {}
test package-4.6 {Tcl_PackageCmd procedure, "ifneeded" option} -body {
    package ifneeded a
} -returnCodes error -result {wrong # args: should be "package ifneeded package version ?script?"}
test package-4.7 {Tcl_PackageCmd procedure, "ifneeded" option} -body {
    package ifneeded a b c d
} -returnCodes error -result {wrong # args: should be "package ifneeded package version ?script?"}
test package-4.8 {Tcl_PackageCmd procedure, "ifneeded" option} -body {
    package ifneeded t xyz
} -returnCodes error -result {expected version number but got "xyz"}
test package-4.9 {Tcl_PackageCmd procedure, "ifneeded" option} -setup {
    interp create child
} -body {
    child eval {
    package forget {*}[package names]
    list [package ifneeded foo 1.1] [package names]
    }
} -cleanup {
    interp delete child
} -result {{} {}}
test package-4.10 {Tcl_PackageCmd procedure, "ifneeded" option} -setup {
    interp create child
    child eval {
    package forget {*}[package names]
    }
} -body {
    child eval {
    package ifneeded t 1.4 "script for t 1.4"
    list [package names] [package ifneeded t 1.4] [package versions t]
    }
} -cleanup {
    interp delete child
} -result {t {script for t 1.4} 1.4}
test package-4.11 {Tcl_PackageCmd procedure, "ifneeded" option} -setup {
    interp create child
    child eval {
    package forget {*}[package names]
    }
} -body {
    child eval {
    package ifneeded t 1.4 "script for t 1.4"
    list [package ifneeded t 1.5] [package names] [package versions t]
    }
} -cleanup {
    interp delete child
} -result {{} t 1.4}
test package-4.12 {Tcl_PackageCmd procedure, "ifneeded" option} -setup {
    interp create child
    child eval {
    package forget {*}[package names]
    }
} -body {
    child eval {
    package ifneeded t 1.4 "script for t 1.4"
    package ifneeded t 1.4 "second script for t 1.4"
    list [package ifneeded t 1.4] [package names] [package versions t]
    }
} -cleanup {
    interp delete child
} -result {{second script for t 1.4} t 1.4}
test package-4.13 {Tcl_PackageCmd procedure, "ifneeded" option} -setup {
    package forget t
} -body {
    package ifneeded t 1.4 "script for t 1.4"
    package ifneeded t 1.2 "second script"
    package ifneeded t 3.1 "last script"
    list [package ifneeded t 1.2] [package versions t]
} -result {{second script} {1.4 1.2 3.1}}
test package-4.14 {Tcl_PackageCmd procedure, "names" option} -body {
    package names a
} -returnCodes error -result {wrong # args: should be "package names"}
test package-4.15 {Tcl_PackageCmd procedure, "names" option} -setup {
    interp create child
} -body {
    child eval {
    package forget {*}[package names]
    package names
    }
} -cleanup {
    interp delete child
} -result {}
test package-4.16 {Tcl_PackageCmd procedure, "names" option} -setup {
    interp create child
    child eval {
    package forget {*}[package names]
    }
} -body {
    child eval {
    package ifneeded x 1.2 {dummy}
    package provide x 1.3
    package provide y 2.4
    catch {package require z 47.16}
    lsort [package names]
    }
} -cleanup {
    interp delete child
} -result {x y}
test package-4.17 {Tcl_PackageCmd procedure, "provide" option} -body {
    package provide
} -returnCodes error -result {wrong # args: should be "package provide package ?version?"}
test package-4.18 {Tcl_PackageCmd procedure, "provide" option} -body {
    package provide a b c
} -returnCodes error -result {wrong # args: should be "package provide package ?version?"}
test package-4.19 {Tcl_PackageCmd procedure, "provide" option} -setup {
    package forget t
} -body {
    package provide t
} -result {}
test package-4.20 {Tcl_PackageCmd procedure, "provide" option} -setup {
    package forget t
} -body {
    package provide t 2.3
    package provide t
} -result {2.3}
test package-4.21 {Tcl_PackageCmd procedure, "provide" option} -setup {
    package forget t
} -returnCodes error -body {
    package provide t a.b
} -result {expected version number but got "a.b"}
test package-4.22 {Tcl_PackageCmd procedure, "require" option} -returnCodes error -body {
    package require
} -result {wrong # args: should be "package require ?-exact? package ?requirement ...?"}
test package-4.24 {Tcl_PackageCmd procedure, "require" option} -body {
    package require -exact a b c
    # Exact syntax: -exact name version
    #              name ?requirement ...?
} -returnCodes error -result {wrong # args: should be "package require ?-exact? package ?requirement ...?"}
test package-4.26 {Tcl_PackageCmd procedure, "require" option} -body {
    package require x a.b
} -returnCodes error -result {expected version number but got "a.b"}
test package-4.27 {Tcl_PackageCmd procedure, "require" option} -body {
    package require -exact x a.b
} -returnCodes error -result {expected version number but got "a.b"}
test package-4.28 {Tcl_PackageCmd procedure, "require" option} -body {
    package require -exact x
} -returnCodes error -result {wrong # args: should be "package require ?-exact? package ?requirement ...?"}
test package-4.29 {Tcl_PackageCmd procedure, "require" option} -body {
    package require -exact
} -returnCodes error -result {wrong # args: should be "package require ?-exact? package ?requirement ...?"}
test package-4.30 {Tcl_PackageCmd procedure, "require" option} -setup {
    package forget t
} -body {
    package provide t 2.3
    package require t 2.1
} -result {2.3}
test package-4.31 {Tcl_PackageCmd procedure, "require" option} -setup {
    package forget t
} -body {
    package require t
} -returnCodes error -result {can't find package t}
test package-4.32 {Tcl_PackageCmd procedure, "require" option} -setup {
    package forget t
} -body {
    package ifneeded t 2.3 "error {synthetic error}"
    package require t 2.3
} -returnCodes error -result {synthetic error}
test package-4.33 {Tcl_PackageCmd procedure, "unknown" option} -body {
    package unknown a b
} -returnCodes error -result {wrong # args: should be "package unknown ?command?"}
test package-4.34 {Tcl_PackageCmd procedure, "unknown" option} {
    package unknown "test script"
    package unknown
} {test script}
test package-4.35 {Tcl_PackageCmd procedure, "unknown" option} {
    package unknown "test script"
    package unknown {}
    package unknown
} {}
test package-4.36 {Tcl_PackageCmd procedure, "vcompare" option} -body {
    package vcompare a
} -returnCodes error -result {wrong # args: should be "package vcompare version1 version2"}
test package-4.37 {Tcl_PackageCmd procedure, "vcompare" option} -body {
    package vcompare a b c
} -returnCodes error -result {wrong # args: should be "package vcompare version1 version2"}
test package-4.38 {Tcl_PackageCmd procedure, "vcompare" option} -body {
    package vcompare x.y 3.4
} -returnCodes error -result {expected version number but got "x.y"}
test package-4.39 {Tcl_PackageCmd procedure, "vcompare" option} -body {
    package vcompare 2.1 a.b
} -returnCodes error -result {expected version number but got "a.b"}
test package-4.40 {Tcl_PackageCmd procedure, "vcompare" option} {
    package vc 2.1 2.3
} {-1}
test package-4.41 {Tcl_PackageCmd procedure, "vcompare" option} {
    package vc 2.2.4 2.2.4
} {0}
test package-4.42 {Tcl_PackageCmd procedure, "versions" option} -body {
    package versions
} -returnCodes error -result {wrong # args: should be "package versions package"}
test package-4.43 {Tcl_PackageCmd procedure, "versions" option} -body {
    package versions a b
} -returnCodes error -result {wrong # args: should be "package versions package"}
test package-4.44 {Tcl_PackageCmd procedure, "versions" option} -body {
    package forget t
    package versions t
} -result {}
test package-4.45 {Tcl_PackageCmd procedure, "versions" option} -setup {
    package forget t
} -body {
    package provide t 2.3
    package versions t
} -result {}
test package-4.46 {Tcl_PackageCmd procedure, "versions" option} -setup {
    package forget t
} -body {
    package ifneeded t 2.3 x
    package ifneeded t 2.4 y
    package versions t
} -result {2.3 2.4}
test package-4.47 {Tcl_PackageCmd procedure, "vsatisfies" option} -body {
    package vsatisfies a
} -returnCodes error -result {wrong # args: should be "package vsatisfies version ?requirement ...?"}
test package-4.49 {Tcl_PackageCmd procedure, "vsatisfies" option} -body {
    package vsatisfies x.y 3.4
} -returnCodes error -result {expected version number but got "x.y"}
test package-4.50 {Tcl_PackageCmd procedure, "vsatisfies" option} -body {
    package vcompare 2.1 a.b
} -returnCodes error -result {expected version number but got "a.b"}
test package-4.51 {Tcl_PackageCmd procedure, "vsatisfies" option} {
    package vs 2.3 2.1
} {1}
test package-4.52 {Tcl_PackageCmd procedure, "vsatisfies" option} {
    package vs 2.3 1.2
} {0}
test package-4.53 {Tcl_PackageCmd procedure, "versions" option} -body {
    package foo
} -returnCodes error -result {bad option "foo": must be files, forget, ifneeded, names, prefer, present, provide, require, unknown, vcompare, versions, or vsatisfies}
test package-4.54 {Tcl_PackageCmd procedure, "vsatisfies" option} -body {
    package vsatisfies 2.1 2.1-3.2-4.5
} -returnCodes error -result {expected versionMin-versionMax but got "2.1-3.2-4.5"}
test package-4.55 {Tcl_PackageCmd procedure, "vsatisfies" option} -body {
    package vsatisfies 2.1 3.2-x.y
} -returnCodes error -result {expected version number but got "x.y"}
test package-4.56 {Tcl_PackageCmd procedure, "vsatisfies" option} -body {
    package vsatisfies 2.1 x.y-3.2
} -returnCodes error -result {expected version number but got "x.y"}

# No tests for FindPackage; can't think up anything detectable errors.

test package-5.1 {TclFreePackageInfo procedure} {
    interp create child
    child eval {
	package ifneeded t 2.3 x
	package ifneeded t 2.4 y
	package ifneeded x 3.1 z
	package provide q 4.3
	package unknown "will this get freed?"
    }
    interp delete child
} {}
test package-5.2 {TclFreePackageInfo procedure} -body {
    interp create foo
    foo eval {
	package ifneeded t 2.3 x
	package ifneeded t 2.4 y
	package ifneeded x 3.1 z
	package provide q 4.3
    }
    foo alias z kill
    proc kill {} {
	interp delete foo
    }
    foo eval package require x 3.1
} -returnCodes error -match glob -result *

test package-6.1 {CheckVersion procedure} {
    package vcompare 1 2.1
} -1
test package-6.2 {CheckVersion procedure} -body {
    package vcompare .1 2.1
} -returnCodes error -result {expected version number but got ".1"}
test package-6.3 {CheckVersion procedure} -body {
    package vcompare 111.2a.3 2.1
} -returnCodes error -result {expected version number but got "111.2a.3"}
test package-6.4 {CheckVersion procedure} -body {
    package vcompare 1.2.3. 2.1
} -returnCodes error -result {expected version number but got "1.2.3."}
test package-6.5 {CheckVersion procedure} -body {
    package vcompare 1.2..3 2.1
} -returnCodes error -result {expected version number but got "1.2..3"}

test package-7.1 {ComparePkgVersions procedure} {
    package vcompare 1.23 1.22
} {1}
test package-7.2 {ComparePkgVersions procedure} {
    package vcompare 1.22.1.2.3 1.22.1.2.3
} {0}
test package-7.3 {ComparePkgVersions procedure} {
    package vcompare 1.21 1.22
} {-1}
test package-7.4 {ComparePkgVersions procedure} {
    package vcompare 1.21 1.21.2
} {-1}
test package-7.5 {ComparePkgVersions procedure} {
    package vcompare 1.21.1 1.21
} {1}
test package-7.6 {ComparePkgVersions procedure} {
    package vsatisfies 1.21.1 1.21
} {1}
test package-7.7 {ComparePkgVersions procedure} {
    package vsatisfies 2.22.3 1.21
} {0}
test package-7.8 {ComparePkgVersions procedure} {
    package vsatisfies 1 1
} {1}
test package-7.9 {ComparePkgVersions procedure} {
    package vsatisfies 2 1
} {0}

test package-8.1 {Tcl_PkgPresent procedure, any version} -setup {
    package forget t
} -body {
    package provide t 2.4
    package present t
} -result {2.4}
test package-8.2 {Tcl_PkgPresent procedure, correct version} -setup {
    package forget t
} -body {
    package provide t 2.4
    package present t 2.4
} -result {2.4}
test package-8.3 {Tcl_PkgPresent procedure, satisfying version} -setup {
    package forget t
} -body {
    package provide t 2.4
    package present t 2.0
} -result {2.4}
test package-8.4 {Tcl_PkgPresent procedure, not satisfying version} -setup {
    package forget t
} -returnCodes error -body {
    package provide t 2.4
    package present t 2.6
} -result {version conflict for package "t": have 2.4, need 2.6}
test package-8.5 {Tcl_PkgPresent procedure, not satisfying version} -setup {
    package forget t
} -returnCodes error -body {
    package provide t 2.4
    package present t 1.0
} -result {version conflict for package "t": have 2.4, need 1.0}
test package-8.6 {Tcl_PkgPresent procedure, exact version} -setup {
    package forget t
} -body {
    package provide t 2.4
    package present -exact t 2.4
} -result {2.4}
test package-8.7 {Tcl_PkgPresent procedure, not exact version} -setup {
    package forget t
} -returnCodes error -body {
    package provide t 2.4
    package present -exact t 2.3
} -result {version conflict for package "t": have 2.4, need exactly 2.3}
test package-8.8 {Tcl_PkgPresent procedure, unknown package} -body {
    package forget t
    package present t
} -returnCodes error -result {package t is not present}
test package-8.9 {Tcl_PkgPresent procedure, unknown package} -body {
    package forget t
    package present t 2.4
} -returnCodes error -result {package t 2.4 is not present}
test package-8.10 {Tcl_PkgPresent procedure, unknown package} -body {
    package forget t
    package present -exact t 2.4
} -returnCodes error -result {package t 2.4 is not present}
test package-8.11 {Tcl_PackageCmd procedure, "present" option} -body {
    package present
} -returnCodes error -result {wrong # args: should be "package present ?-exact? package ?requirement ...?"}
test package-8.12 {Tcl_PackageCmd procedure, "present" option} -body {
    package present a b c
} -returnCodes error -result {expected version number but got "b"}
test package-8.13 {Tcl_PackageCmd procedure, "present" option} -body {
    package present -exact a b c
} -returnCodes error -result {wrong # args: should be "package present ?-exact? package ?requirement ...?"}
test package-8.14 {Tcl_PackageCmd procedure, "present" option} -body {
    package present -bs a b
} -returnCodes error -result {expected version number but got "a"}
test package-8.15 {Tcl_PackageCmd procedure, "present" option} -body {
    package present x a.b
} -returnCodes error -result {expected version number but got "a.b"}
test package-8.16 {Tcl_PackageCmd procedure, "present" option} -body {
    package present -exact x a.b
} -returnCodes error -result {expected version number but got "a.b"}
test package-8.17 {Tcl_PackageCmd procedure, "present" option} -body {
    package present -exact x
} -returnCodes error -result {wrong # args: should be "package present ?-exact? package ?requirement ...?"}
test package-8.18 {Tcl_PackageCmd procedure, "present" option} -body {
    package present -exact
} -returnCodes error -result {wrong # args: should be "package present ?-exact? package ?requirement ...?"}

set n 0
foreach {r p vs vc} {
    8.5a0    8.5a5    1          -1
    8.5a0    8.5b1    1          -1
    8.5a0    8.5.1    1          -1
    8.5a0    8.6a0    1          -1
    8.5a0    8.6b0    1          -1
    8.5a0    8.6.0    1          -1
    8.5a6    8.5a5    0          1
    8.5a6    8.5b1    1          -1
    8.5a6    8.5.1    1          -1
    8.5a6    8.6a0    1          -1
    8.5a6    8.6b0    1          -1
    8.5a6    8.6.0    1          -1
    8.5b0    8.5a5    0          1
    8.5b0    8.5b1    1          -1
    8.5b0    8.5.1    1          -1
    8.5b0    8.6a0    1          -1
    8.5b0    8.6b0    1          -1
    8.5b0    8.6.0    1          -1
    8.5b2    8.5a5    0          1
    8.5b2    8.5b1    0          1
    8.5b2    8.5.1    1          -1
    8.5b2    8.6a0    1          -1
    8.5b2    8.6b0    1          -1
    8.5b2    8.6.0    1          -1
    8.5      8.5a5    1          1
    8.5      8.5b1    1          1
    8.5      8.5.1    1          -1
    8.5      8.6a0    1          -1
    8.5      8.6b0    1          -1
    8.5      8.6.0    1          -1
    8.5.0    8.5a5    0          1
    8.5.0    8.5b1    0          1
    8.5.0    8.5.1    1          -1
    8.5.0    8.6a0    1          -1
    8.5.0    8.6b0    1          -1
    8.5.0    8.6.0    1          -1
    10       8        0          1
    8        10       0          -1
    0.0.1.2  0.1.2    1          -1
} {
    test package-9.$n {package vsatisfies} {
	package vsatisfies $p $r
    } $vs
    test package-10.$n {package vcompare} {
	package vcompare $r $p
    } $vc
    incr n
}

test package-11.0.0 {package vcompare at 32bit boundary} {
    package vcompare [expr {1<<31}] [expr {(1<<31)-1}]
} 1

# Note: It is correct that the result of the very first test, i.e. "5.0 5.0a0"
# is 1, i.e. that version 5.0a0 satisfies a 5.0 requirement.

# The requirement "5.0" internally translates first to "5.0-6", and then to
# its final form of "5.0a0-6a0". These translations are explicitly specified
# by the TIP (Search for "padded/extended internally with 'a0'"). This was
# done intentionally for exactly the tested case, that an alpha package can
# satisfy a requirement for the regular package. An example would be a package
# FOO requiring Tcl 8.X for its operation. It can be used with Tcl 8.Xa0.
# Without our translation that would not be possible.

set n 0
foreach {required provided satisfied} {
    5.0 5.0a0 1
    5.0a0 5.0 1

    8.5a0-   8.5a5    1
    8.5a0-   8.5b1    1
    8.5a0-   8.5.1    1
    8.5a0-   8.6a0    1
    8.5a0-   8.6b0    1
    8.5a0-   8.6.0    1
    8.5a6-   8.5a5    0
    8.5a6-   8.5b1    1
    8.5a6-   8.5.1    1
    8.5a6-   8.6a0    1
    8.5a6-   8.6b0    1
    8.5a6-   8.6.0    1
    8.5b0-   8.5a5    0
    8.5b0-   8.5b1    1
    8.5b0-   8.5.1    1
    8.5b0-   8.6a0    1
    8.5b0-   8.6b0    1
    8.5b0-   8.6.0    1
    8.5b2-   8.5a5    0
    8.5b2-   8.5b1    0
    8.5b2-   8.5.1    1
    8.5b2-   8.6a0    1
    8.5b2-   8.6b0    1
    8.5b2-   8.6.0    1
    8.5-     8.5a5    1
    8.5-     8.5b1    1
    8.5-     8.5.1    1
    8.5-     8.6a0    1
    8.5-     8.6b0    1
    8.5-     8.6.0    1
    8.5.0-   8.5a5    0
    8.5.0-   8.5b1    0
    8.5.0-   8.5.1    1
    8.5.0-   8.6a0    1
    8.5.0-   8.6b0    1
    8.5.0-   8.6.0    1
    8.5a0-7  8.5a5    0
    8.5a0-7  8.5b1    0
    8.5a0-7  8.5.1    0
    8.5a0-7  8.6a0    0
    8.5a0-7  8.6b0    0
    8.5a0-7  8.6.0    0
    8.5a6-7  8.5a5    0
    8.5a6-7  8.5b1    0
    8.5a6-7  8.5.1    0
    8.5a6-7  8.6a0    0
    8.5a6-7  8.6b0    0
    8.5a6-7  8.6.0    0
    8.5b0-7  8.5a5    0
    8.5b0-7  8.5b1    0
    8.5b0-7  8.5.1    0
    8.5b0-7  8.6a0    0
    8.5b0-7  8.6b0    0
    8.5b0-7  8.6.0    0
    8.5b2-7  8.5a5    0
    8.5b2-7  8.5b1    0
    8.5b2-7  8.5.1    0
    8.5b2-7  8.6a0    0
    8.5b2-7  8.6b0    0
    8.5b2-7  8.6.0    0
    8.5-7    8.5a5    0
    8.5-7    8.5b1    0
    8.5-7    8.5.1    0
    8.5-7    8.6a0    0
    8.5-7    8.6b0    0
    8.5-7    8.6.0    0
    8.5.0-7  8.5a5    0
    8.5.0-7  8.5b1    0
    8.5.0-7  8.5.1    0
    8.5.0-7  8.6a0    0
    8.5.0-7  8.6b0    0
    8.5.0-7  8.6.0    0
    8.5a0-8.6.1 8.5a5    1
    8.5a0-8.6.1 8.5b1    1
    8.5a0-8.6.1 8.5.1    1
    8.5a0-8.6.1 8.6a0    1
    8.5a0-8.6.1 8.6b0    1
    8.5a0-8.6.1 8.6.0    1
    8.5a6-8.6.1 8.5a5    0
    8.5a6-8.6.1 8.5b1    1
    8.5a6-8.6.1 8.5.1    1
    8.5a6-8.6.1 8.6a0    1
    8.5a6-8.6.1 8.6b0    1
    8.5a6-8.6.1 8.6.0    1
    8.5b0-8.6.1 8.5a5    0
    8.5b0-8.6.1 8.5b1    1
    8.5b0-8.6.1 8.5.1    1
    8.5b0-8.6.1 8.6a0    1
    8.5b0-8.6.1 8.6b0    1
    8.5b0-8.6.1 8.6.0    1
    8.5b2-8.6.1 8.5a5    0
    8.5b2-8.6.1 8.5b1    0
    8.5b2-8.6.1 8.5.1    1
    8.5b2-8.6.1 8.6a0    1
    8.5b2-8.6.1 8.6b0    1
    8.5b2-8.6.1 8.6.0    1
    8.5-8.6.1 8.5a5    1
    8.5-8.6.1 8.5b1    1
    8.5-8.6.1 8.5.1    1
    8.5-8.6.1 8.6a0    1
    8.5-8.6.1 8.6b0    1
    8.5-8.6.1 8.6.0    1
    8.5.0-8.6.1 8.5a5    0
    8.5.0-8.6.1 8.5b1    0
    8.5.0-8.6.1 8.5.1    1
    8.5.0-8.6.1 8.6a0    1
    8.5.0-8.6.1 8.6b0    1
    8.5.0-8.6.1 8.6.0    1
    8.5a0-8.5a0 8.5a0    1
    8.5a0-8.5a0 8.5b1    0
    8.5a0-8.5a0 8.4      0
    8.5b0-8.5b0 8.5a5    0
    8.5b0-8.5b0 8.5b0    1
    8.5b0-8.5b0 8.5.1    0
    8.5-8.5  8.5a5    0
    8.5-8.5  8.5b1    0
    8.5-8.5  8.5      1
    8.5-8.5  8.5.1    0
    8.5.0-8.5.0 8.5a5    0
    8.5.0-8.5.0 8.5b1    0
    8.5.0-8.5.0 8.5.0    1
    8.5.0-8.5.0 8.5.1    0
    8.5.0-8.5.0 8.6a0    0
    8.5.0-8.5.0 8.6b0    0
    8.5.0-8.5.0 8.6.0    0
    8.2      9        0
    8.2-     9        1
    8.2-8.5  9        0
    8.2-9.1  9        1

    8.5-8.5     8.5b1 0
    8.5a0-8.5   8.5b1 0
    8.5a0-8.5.1 8.5b1 1

    8.5-8.5     8.5 1
    8.5.0-8.5.0 8.5 1
    8.5a0-8.5.0 8.5 0
} {
    test package-11.$n "package vsatisfies $provided $required" {
	package vsatisfies $provided $required
    } $satisfied
    incr n
}

test package-12.0 "package vsatisfies multiple" {
    #                      yes no
    package vsatisfies 8.4 8.4 7.3
} 1
test package-12.1 "package vsatisfies multiple" {
    #                      no  yes
    package vsatisfies 8.4 7.3 8.4
} 1
test package-12.2 "package vsatisfies multiple" {
    #                        yes  yes
    package vsatisfies 8.4.2 8.4  8.4.1
} 1
test package-12.3 "package vsatisfies multiple" {
    #                      no  no
    package vsatisfies 8.4 7.3 6.1
} 0

proc prefer {args} {
    set ip [interp create]
    try {
	lappend res [$ip eval {package prefer}]
	foreach mode $args {
	    lappend res [$ip eval [list package prefer $mode]]
	}
	return $res
    } finally {
	interp delete $ip
    }
}

test package-13.0 {package prefer defaults} -body {
    prefer
} -result [expr {[string match {*[ab]*} [package provide tcl]] ? "latest" : "stable"}]
test package-13.1 {package prefer defaults} -body {
    set ::env(TCL_PKG_PREFER_LATEST) stable	;# value not relevant!
    prefer
} -cleanup {
    unset -nocomplain ::env(TCL_PKG_PREFER_LATEST)
} -result latest

test package-14.0 {wrong\#args} -returnCodes error -body {
    package prefer foo bar
} -result {wrong # args: should be "package prefer ?latest|stable?"}
test package-14.1 {bogus argument} -returnCodes error -body {
    package prefer foo
} -result {bad preference "foo": must be latest or stable}

test package-15.0 {set, keep} -constraints testpreferstable -setup {
    testpreferstable
} -body {package prefer} -result stable
test package-15.1 {set stable, keep} -constraints testpreferstable -setup {
    testpreferstable
} -body {package prefer stable} -result stable
test package-15.2 {set latest, change} -constraints testpreferstable -setup {
    testpreferstable
} -body {package prefer latest} -result latest
test package-15.3 {set latest, keep} -constraints testpreferstable -setup {
    testpreferstable
} -body {
    package prefer latest
    package prefer latest
} -result latest
test package-15.4 {set stable, rejected} -constraints testpreferstable -setup {
    testpreferstable
} -body {
    package prefer latest
    package prefer stable
} -result latest

rename prefer {}

set auto_path $oldPath
package unknown $oldPkgUnknown

cleanupTests
}

# cleanup
interp delete $i
::tcltest::cleanupTests
return

# Local Variables:
# mode: tcl
# fill-column: 78
# End: