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# Commands covered: case
#
# 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 © 1991-1993 The Regents of the University of California.
# Copyright © 1994 Sun Microsystems, Inc.
# Copyright © 1998-1999 Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
if {![llength [info commands case]]} {
# No "case" command? So no need to test
return
}
if {"::tcltest" ni [namespace children]} {
package require tcltest 2.5
namespace import -force ::tcltest::*
}
test case-1.1 {simple pattern} {
case a in a {format 1} b {format 2} c {format 3} default {format 4}
} 1
test case-1.2 {simple pattern} {
case b a {format 1} b {format 2} c {format 3} default {format 4}
} 2
test case-1.3 {simple pattern} {
case x in a {format 1} b {format 2} c {format 3} default {format 4}
} 4
test case-1.4 {simple pattern} {
case x a {format 1} b {format 2} c {format 3}
} {}
test case-1.5 {simple pattern matches many times} {
case b a {format 1} b {format 2} b {format 3} b {format 4}
} 2
test case-1.6 {fancier pattern} {
case cx a {format 1} *c {format 2} *x {format 3} default {format 4}
} 3
test case-1.7 {list of patterns} {
case abc in {a b c} {format 1} {def abc ghi} {format 2}
} 2
test case-2.1 {error in executed command} {
list [catch {case a in a {error "Just a test"} default {format 1}} msg] \
$msg $::errorInfo
} {1 {Just a test} {Just a test
while executing
"error "Just a test""
("a" arm line 1)
invoked from within
"case a in a {error "Just a test"} default {format 1}"}}
test case-2.2 {error: not enough args} {
list [catch {case} msg] $msg
} {1 {wrong # args: should be "case string ?in? ?pattern body ...? ?default body?"}}
test case-2.3 {error: pattern with no body} {
list [catch {case a b} msg] $msg
} {1 {extra case pattern with no body}}
test case-2.4 {error: pattern with no body} {
list [catch {case a in b {format 1} c} msg] $msg
} {1 {extra case pattern with no body}}
test case-2.5 {error in default command} {
list [catch {case foo in a {error case1} default {error case2} \
b {error case 3}} msg] $msg $::errorInfo
} {1 case2 {case2
while executing
"error case2"
("default" arm line 1)
invoked from within
"case foo in a {error case1} default {error case2} b {error case 3}"}}
test case-3.1 {single-argument form for pattern/command pairs} {
case b in {
a {format 1}
b {format 2}
default {format 6}
}
} {2}
test case-3.2 {single-argument form for pattern/command pairs} {
case b {
a {format 1}
b {format 2}
default {format 6}
}
} {2}
test case-3.3 {single-argument form for pattern/command pairs} {
list [catch {case z in {a 2 b}} msg] $msg
} {1 {extra case pattern with no body}}
# cleanup
::tcltest::cleanupTests
return
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