archie/tcl7.6/tests/switch.test

# Commands covered:  switch
#
# 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) 1993 The Regents of the University of California.
# Copyright (c) 1994 Sun Microsystems, Inc.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# SCCS: @(#) switch.test 1.5 96/02/16 08:56:31

if {[string compare test [info procs test]] == 1} then {source defs}

test switch-1.1 {simple patterns} {
    switch a a {format 1} b {format 2} c {format 3} default {format 4}
} 1
test switch-1.2 {simple patterns} {
    switch b a {format 1} b {format 2} c {format 3} default {format 4}
} 2
test switch-1.3 {simple patterns} {
    switch x a {format 1} b {format 2} c {format 3} default {format 4}
} 4
test switch-1.4 {simple patterns} {
    switch x a {format 1} b {format 2} c {format 3}
} {}
test switch-1.5 {simple pattern matches many times} {
    switch b a {format 1} b {format 2} b {format 3} b {format 4}
} 2
test switch-1.6 {simple patterns} {
    switch default a {format 1} default {format 2} c {format 3} default {format 4}
} 2
test switch-1.7 {simple patterns} {
    switch x a {format 1} default {format 2} c {format 3} default {format 4}
} 4

test switch-2.1 {single-argument form for pattern/command pairs} {
    switch b {
	a {format 1}
	b {format 2}
	default {format 6}
    }
} {2}
test switch-2.2 {single-argument form for pattern/command pairs} {
    list [catch {switch z {a 2 b}} msg] $msg
} {1 {extra switch pattern with no body}}

test switch-3.1 {-exact vs. -glob vs. -regexp} {
    switch -exact aaaab {
	^a*b$	{concat regexp}
	*b	{concat glob}
	aaaab	{concat exact}
	default	{concat none}
    }
} exact
test switch-3.2 {-exact vs. -glob vs. -regexp} {
    switch -exact -regexp aaaab {
	^a*b$	{concat regexp}
	*b	{concat glob}
	aaaab	{concat exact}
	default	{concat none}
    }
} regexp
test switch-3.3 {-exact vs. -glob vs. -regexp} {
    switch -glob aaaab {
	^a*b$	{concat regexp}
	*b	{concat glob}
	aaaab	{concat exact}
	default	{concat none}
    }
} glob
test switch-3.4 {-exact vs. -glob vs. -regexp} {
    switch aaaab {^a*b$} {concat regexp} *b {concat glob} \
	    aaaab {concat exact} default {concat none}
} exact
test switch-3.5 {-exact vs. -glob vs. -regexp} {
    switch -- -glob {
	^g.*b$	{concat regexp}
	-*	{concat glob}
	-glob	{concat exact}
	default {concat none}
    }
} exact
test switch-3.6 {-exact vs. -glob vs. -regexp} {
    list [catch {switch -foo a b c} msg] $msg
} {1 {bad option "-foo": should be -exact, -glob, -regexp, or --}}

test switch-4.1 {error in executed command} {
    list [catch {switch a 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
"switch a a {error "Just a test"} default {format 1}"}}
test switch-4.2 {error: not enough args} {
    list [catch {switch} msg] $msg
} {1 {wrong # args: should be "switch ?switches? string pattern body ... ?default body?"}}
test switch-4.3 {error: pattern with no body} {
    list [catch {switch a b} msg] $msg
} {1 {extra switch pattern with no body}}
test switch-4.4 {error: pattern with no body} {
    list [catch {switch a b {format 1} c} msg] $msg
} {1 {extra switch pattern with no body}}
test switch-4.5 {error in default command} {
    list [catch {switch foo a {error switch1} b {error switch 3} \
	    default {error switch2}} msg] $msg $errorInfo
} {1 switch2 {switch2
    while executing
"error switch2"
    ("default" arm line 1)
    invoked from within
"switch foo a {error switch1} b {error switch 3}  default {error switch2}"}}

test switch-5.1 {errors in -regexp matching} {
    list [catch {switch -regexp aaaab {
	*b	{concat glob}
	aaaab	{concat exact}
	default	{concat none}
    }} msg] $msg
} {1 {couldn't compile regular expression pattern: ?+* follows nothing}}

test switch-6.1 {backslashes in patterns} {
    switch -exact {\a\$\.\[} {
	\a\$\.\[	{concat first}
	\a\\$\.\\[	{concat second}
	\\a\\$\\.\\[	{concat third}
	{\a\\$\.\\[}	{concat fourth}
	{\\a\\$\\.\\[}	{concat fifth}
	default		{concat none}
    }
} third
test switch-6.2 {backslashes in patterns} {
    switch -exact {\a\$\.\[} {
	\a\$\.\[	{concat first}
	{\a\$\.\[}	{concat second}
	{{\a\$\.\[}}	{concat third}
	default		{concat none}
    }
} second

test switch-7.1 {"-" bodies} {
    switch a {
	a -
	b -
	c {concat 1}
	default {concat 2}
    }
} 1
test switch-7.2 {"-" bodies} {
    list [catch {
	switch a {
	    a -
	    b -
	    c -
	}
    } msg] $msg
} {1 {no body specified for pattern "a"}}
test switch-7.3 {"-" bodies} {
    list [catch {
	switch a {
	    a -
	    b -foo
	    c -
	}
    } msg] $msg
} {1 {invalid command name "-foo"}}