1# Commands covered:  case
2#
3# This file contains a collection of tests for one or more of the Tcl
4# built-in commands.  Sourcing this file into Tcl runs the tests and
5# generates output for errors.  No output means no errors were found.
6#
7# Copyright © 1991-1993 The Regents of the University of California.
8# Copyright © 1994 Sun Microsystems, Inc.
9# Copyright © 1998-1999 Scriptics Corporation.
10#
11# See the file "license.terms" for information on usage and redistribution
12# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
13
14if {![llength [info commands case]]} {
15    # No "case" command? So no need to test
16    return
17}
18
19if {"::tcltest" ni [namespace children]} {
20    package require tcltest 2.5
21    namespace import -force ::tcltest::*
22}
23
24test case-1.1 {simple pattern} {
25    case a in a {format 1} b {format 2} c {format 3} default {format 4}
26} 1
27test case-1.2 {simple pattern} {
28    case b a {format 1} b {format 2} c {format 3} default {format 4}
29} 2
30test case-1.3 {simple pattern} {
31    case x in a {format 1} b {format 2} c {format 3} default {format 4}
32} 4
33test case-1.4 {simple pattern} {
34    case x a {format 1} b {format 2} c {format 3}
35} {}
36test case-1.5 {simple pattern matches many times} {
37    case b a {format 1} b {format 2} b {format 3} b {format 4}
38} 2
39test case-1.6 {fancier pattern} {
40    case cx a {format 1} *c {format 2} *x {format 3} default {format 4}
41} 3
42test case-1.7 {list of patterns} {
43    case abc in {a b c} {format 1} {def abc ghi} {format 2}
44} 2
45
46test case-2.1 {error in executed command} {
47    list [catch {case a in a {error "Just a test"} default {format 1}} msg] \
48	    $msg $::errorInfo
49} {1 {Just a test} {Just a test
50    while executing
51"error "Just a test""
52    ("a" arm line 1)
53    invoked from within
54"case a in a {error "Just a test"} default {format 1}"}}
55test case-2.2 {error: not enough args} {
56    list [catch {case} msg] $msg
57} {1 {wrong # args: should be "case string ?in? ?pattern body ...? ?default body?"}}
58test case-2.3 {error: pattern with no body} {
59    list [catch {case a b} msg] $msg
60} {1 {extra case pattern with no body}}
61test case-2.4 {error: pattern with no body} {
62    list [catch {case a in b {format 1} c} msg] $msg
63} {1 {extra case pattern with no body}}
64test case-2.5 {error in default command} {
65    list [catch {case foo in a {error case1} default {error case2} \
66	    b {error case 3}} msg] $msg $::errorInfo
67} {1 case2 {case2
68    while executing
69"error case2"
70    ("default" arm line 1)
71    invoked from within
72"case foo in a {error case1} default {error case2}  b {error case 3}"}}
73
74test case-3.1 {single-argument form for pattern/command pairs} {
75    case b in {
76	a {format 1}
77	b {format 2}
78	default {format 6}
79    }
80} {2}
81test case-3.2 {single-argument form for pattern/command pairs} {
82    case b {
83	a {format 1}
84	b {format 2}
85	default {format 6}
86    }
87} {2}
88test case-3.3 {single-argument form for pattern/command pairs} {
89    list [catch {case z in {a 2 b}} msg] $msg
90} {1 {extra case pattern with no body}}
91
92# cleanup
93::tcltest::cleanupTests
94return
95