* doc/FileSystem.3: Implementation of

        * doc/source.n:                                 TIPs 137/151.  Adds
        * doc/tclsh.1:                                  a -encoding option to
        * generic/tcl.decls:                            the [source] command
        * generic/tclCmdMZ.c (Tcl_SourceObjCmd):        and a new C routine,
        * generic/tclIOUtil.c (Tcl_FSEvalFileEx):       Tcl_FSEvalFileEx(),
        * generic/tclMain.c (Tcl_Main):                 that provides C access
        * mac/tclMacResource.c (Tcl_MacSourceObjCmd):   to the same function.
        * tests/cmdMZ.test:                             Also adds command line
        * tests/main.test:      option handling in Tcl_Main() so that tclsh
        * tests/source.test:    and other apps built on Tcl_Main() respect
        a -encoding command line option before a script filename.  Docs and
        tests updated as well.  [Patch 742683]
        This is a ***POTENTIAL INCOMPATIBILITY*** only for those C programs
        that embed Tcl, build on Tcl_Main(), and make use of Tcl_Main's former
        ability to pass a leading "-encoding" option to interactive shell
        operations.

        * generic/tclInt.decls:                         Added internal stub
        * generic/tclMain.c (Tcl*StartupScript*):       table entries for
        two new functions Tcl_SetStartupScript() and Tcl_GetStartupScript()
        that set/get the path and encoding for the startup script to be
        evaluated by either Tcl_Main() or Tk_Main().  Given public names in
        anticipation of their exposure by a followup TIP.

        * generic/tclDecls.h:           make genstubs
        * generic/tclIntDecls.h:
        * generic/tclStubInit.c:

3 files changed, 382 insertions, 117 deletions

diff --git a/tests/cmdMZ.test b/tests/cmdMZ.test
index 4609365..2e2a978 100644
--- a/tests/cmdMZ.test
+++ b/tests/cmdMZ.test
@@ -11,7 +11,7 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 #
-# RCS: @(#) $Id: cmdMZ.test,v 1.17 2003/08/29 17:43:24 dgp Exp $
+# RCS: @(#) $Id: cmdMZ.test,v 1.18 2003/09/05 21:52:12 dgp Exp $
 
 if {[catch {package require tcltest 2.0.2}]} {
     puts stderr "Skipping tests in [info script]. tcltest 2.0.2 required."
@@ -187,6 +187,7 @@ foreach script {
 # The tests for Tcl_ScanObjCmd are in scan.test
 
 # Tcl_SourceObjCmd
+# More tests of Tcl_SourceObjCmd are in source.test
 
 test cmdMZ-3.1 {Tcl_SourceObjCmd: error conditions} {macOnly} {
     list [catch {source} msg] $msg
@@ -194,12 +195,16 @@ test cmdMZ-3.1 {Tcl_SourceObjCmd: error conditions} {macOnly} {
 test cmdMZ-3.2 {Tcl_SourceObjCmd: error conditions} {macOnly} {
     list [catch {source a b} msg] $msg
 } {1 {bad argument: should be "source fileName" or "source -rsrc name ?fileName?" or "source -rsrcid id ?fileName?"}}
-test cmdMZ-3.3 {Tcl_SourceObjCmd: error conditions} {unixOrPc} {
+test cmdMZ-3.3 {Tcl_SourceObjCmd: error conditions} -constraints {
+    unixOrPc
+} -body {
     list [catch {source} msg] $msg
-} {1 {wrong # args: should be "source fileName"}}
-test cmdMZ-3.4 {Tcl_SourceObjCmd: error conditions} {unixOrPc} {
+} -match glob -result {1 {wrong # args: should be "source*fileName"}}
+test cmdMZ-3.4 {Tcl_SourceObjCmd: error conditions} -constraints {
+    unixOrPc
+} -body {
     list [catch {source a b} msg] $msg
-} {1 {wrong # args: should be "source fileName"}}
+} -match glob -result {1 {wrong # args: should be "source*fileName"}}
 test cmdMZ-3.5 {Tcl_SourceObjCmd: error in script} -body {
     set file [makeFile {
 	set x 146
diff --git a/tests/main.test b/tests/main.test
index 6778b88..605bab8 100644
--- a/tests/main.test
+++ b/tests/main.test
@@ -1,6 +1,6 @@
 # This file contains a collection of tests for generic/tclMain.c.
 #
-# RCS: @(#) $Id: main.test,v 1.13 2003/02/16 01:36:32 msofer Exp $
+# RCS: @(#) $Id: main.test,v 1.14 2003/09/05 21:52:12 dgp Exp $
 
 if {[catch {package require tcltest 2.0.2}]} {
     puts stderr "Skipping tests in [info script]. tcltest 2.0.2 required."
@@ -139,6 +139,72 @@ namespace eval ::tcl::test::main {
     } -result [list [list [encoding convertfrom [encoding system] \
 	[encoding convertto [encoding system] \u20ac]]] {} 0]\n
 
+    test Tcl_Main-1.7 {
+	Tcl_Main: startup script - -encoding option
+    } -constraints {
+	stdio
+    } -setup {
+	set script [makeFile {} script]
+	removeFile script
+	set f [open $script w]
+	fconfigure $f -encoding utf-8
+	puts $f {puts [list $argv0 $argv $tcl_interactive]}
+	puts -nonewline $f {puts [string equal \u20ac }
+	puts $f "\u20ac]"
+	close $f
+	catch {set f [open "|[list [interpreter] -encoding utf-8 script]" r]}
+    } -body {
+	read $f
+    } -cleanup {
+	close $f
+	removeFile script
+    } -result [list script {} 0]\n1\n
+
+    test Tcl_Main-1.8 {
+	Tcl_Main: startup script - -encoding option - mismatched encodings
+    } -constraints {
+	stdio
+    } -setup {
+	set script [makeFile {} script]
+	removeFile script
+	set f [open $script w]
+	fconfigure $f -encoding utf-8
+	puts $f {puts [list $argv0 $argv $tcl_interactive]}
+	puts -nonewline $f {puts [string equal \u20ac }
+	puts $f "\u20ac]"
+	close $f
+	catch {set f [open "|[list [interpreter] -encoding ascii script]" r]}
+    } -body {
+	read $f
+    } -cleanup {
+	close $f
+	removeFile script
+    } -result [list script {} 0]\n0\n
+
+    test Tcl_Main-1.9 {
+	Tcl_Main: startup script - -encoding option - no abbrevation
+    } -constraints {
+	stdio
+    } -setup {
+	set script [makeFile {} script]
+	removeFile script
+	set f [open $script w]
+	fconfigure $f -encoding utf-8
+	puts $f {puts [list $argv0 $argv $tcl_interactive]}
+	puts -nonewline $f {puts [string equal \u20ac }
+	puts $f "\u20ac]"
+	close $f
+	catch {set f [open "|[list [interpreter] -enc utf-8 script]" r+]}
+    } -body {
+	type $f {
+	    puts $argv
+	}
+	list [catch {gets $f} line] $line
+    } -cleanup {
+	close $f
+	removeFile script
+    } -result {0 {-enc utf-8 script}}
+
     # Tests Tcl_Main-2.*: application-initialization procedure
 
     test Tcl_Main-2.1 {
diff --git a/tests/source.test b/tests/source.test
index f245d05..413c658 100644
--- a/tests/source.test
+++ b/tests/source.test
@@ -7,187 +7,381 @@
 # Copyright (c) 1991-1993 The Regents of the University of California.
 # Copyright (c) 1994-1996 Sun Microsystems, Inc.
 # Copyright (c) 1998-2000 by Scriptics Corporation.
+# Contributions from Don Porter, NIST, 2003.  (not subject to US copyright)
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 #
-# RCS: @(#) $Id: source.test,v 1.8 2002/07/05 10:38:43 dkf Exp $
+# RCS: @(#) $Id: source.test,v 1.9 2003/09/05 21:52:12 dgp Exp $
 
-if {[lsearch [namespace children] ::tcltest] == -1} {
-    package require tcltest
-    namespace import -force ::tcltest::*
+if {[catch {package require tcltest 2.0.2}]} {
+    puts stderr "Skipping tests in [info script]. tcltest 2.0.2 required."
+    return
 }
 
-set sourcefile [makeFile "" source.file]
-test source-1.1 {source command} {
+namespace eval ::tcl::test::source {
+    namespace import ::tcltest::test
+    namespace import ::tcltest::testConstraint
+    namespace import ::tcltest::cleanupTests
+    namespace import ::tcltest::makeFile
+    namespace import ::tcltest::removeFile
+
+test source-1.1 {source command} -setup {
     set x "old x value"
     set y "old y value"
     set z "old z value"
-    makeFile {
+    set sourcefile [makeFile {
 	set x 22
 	set y 33
 	set z 44
-    } source.file
+    } source.file]
+} -body {
     source $sourcefile
     list $x $y $z
-} {22 33 44}
-test source-1.2 {source command} {
-    makeFile {list result} source.file
+} -cleanup {
+    removeFile source.file
+} -result {22 33 44}
+
+test source-1.2 {source command} -setup {
+    set sourcefile [makeFile {list result} source.file]
+} -body {
     source $sourcefile
-} result
-test source-1.3 {source command} {
-    set y {\ }
+} -cleanup {
+    removeFile source.file
+} -result result
 
+test source-1.3 {source command} -setup {
+    set sourcefile [makeFile {} source.file]
     set fd [open $sourcefile w]
     fconfigure $fd -translation lf
-    puts -nonewline $fd "list a b c "
-    puts $fd [string index $y 0]
+    puts $fd "list a b c \\"
     puts $fd "d e f"
     close $fd
-
+} -body {
     source $sourcefile
-} {a b c d e f}
+} -cleanup {
+    removeFile source.file
+} -result {a b c d e f}
 
-test source-2.3 {source error conditions} {
-    makeFile {
+
+test source-2.3 {source error conditions} -setup {
+    set sourcefile [makeFile {
 	set x 146
 	error "error in sourced file"
 	set y $x
-    } source.file
-    list [catch {source $sourcefile} msg] $msg $errorInfo
-} [list 1 {error in sourced file} "error in sourced file
+    } source.file]
+} -body {
+    list [catch {source $sourcefile} msg] $msg $::errorInfo
+} -cleanup {
+    removeFile source.file
+} -match glob -result [list 1 {error in sourced file} \
+	{error in sourced file
     while executing
-\"error \"error in sourced file\"\"
-    (file \"$sourcefile\" line 3)
+"error "error in sourced file""
+    (file "*source.file" line 3)
     invoked from within
-\"source \$sourcefile\""]
-test source-2.4 {source error conditions} {
-    makeFile {break} source.file
-    catch {source $sourcefile}
-} 3
-test source-2.5 {source error conditions} {
-    makeFile {continue} source.file
-    catch {source $sourcefile}
-} 4
-test source-2.6 {source error conditions} {
-    normalizeMsg [list [catch {source _non_existent_} msg] $msg $errorCode]
-} {1 {couldn't read file "_non_existent_": no such file or directory} {posix enoent {no such file or directory}}}
-
-test source-3.1 {return in middle of source file} {
-    makeFile {
+"source $sourcefile"}]
+
+test source-2.4 {source error conditions} -setup {
+    set sourcefile [makeFile {break} source.file]
+} -body {
+    source $sourcefile
+} -cleanup {
+    removeFile source.file
+} -returnCodes break
+
+test source-2.5 {source error conditions} -setup {
+    set sourcefile [makeFile {continue} source.file]
+} -body {
+    source $sourcefile
+} -cleanup {
+    removeFile source.file
+} -returnCodes continue
+
+test source-2.6 {source error conditions} -setup {
+    set sourcefile [makeFile {} _non_existent_]
+    removeFile _non_existent_
+} -body {
+    list [catch {source $sourcefile} msg] $msg $::errorCode
+} -match glob -result [list 1 \
+	{couldn't read file "*_non_existent_": no such file or directory} \
+	{POSIX ENOENT {no such file or directory}}]
+
+
+test source-3.1 {return in middle of source file} -setup {
+    set sourcefile [makeFile {
 	set x new-x
 	return allDone
 	set y new-y
-    } source.file
+    } source.file]
+} -body {
     set x old-x
     set y old-y
     set z [source $sourcefile]
     list $x $y $z
-} {new-x old-y allDone}
-test source-3.2 {return with special code etc.} {
-    makeFile {
+} -cleanup {
+    removeFile source.file
+} -result {new-x old-y allDone}
+
+test source-3.2 {return with special code etc.} -setup {
+    set sourcefile [makeFile {
 	set x new-x
 	return -code break "Silly result"
 	set y new-y
-    } source.file
-    list [catch {source $sourcefile} msg] $msg
-} {3 {Silly result}}
-test source-3.3 {return with special code etc.} {
-    makeFile {
+    } source.file]
+} -body {
+   source $sourcefile
+} -cleanup {
+    removeFile source.file
+} -returnCodes break -result {Silly result}
+
+test source-3.3 {return with special code etc.} -setup {
+    set sourcefile [makeFile {
 	set x new-x
 	return -code error "Simulated error"
 	set y new-y
-    } source.file
-    list [catch {source $sourcefile} msg] $msg $errorInfo $errorCode
-} {1 {Simulated error} {Simulated error
+    } source.file]
+} -body {
+    list [catch {source $sourcefile} msg] $msg $::errorInfo $::errorCode
+} -cleanup {
+    removeFile source.file
+} -result {1 {Simulated error} {Simulated error
     while executing
 "source $sourcefile"} NONE}
-test source-3.4 {return with special code etc.} {
-    makeFile {
+
+test source-3.4 {return with special code etc.} -setup {
+    set sourcefile [makeFile {
 	set x new-x
 	return -code error -errorinfo "Simulated errorInfo stuff"
 	set y new-y
-    } source.file
-    list [catch {source $sourcefile} msg] $msg $errorInfo $errorCode
-} {1 {} {Simulated errorInfo stuff
+    } source.file]
+} -body {
+    list [catch {source $sourcefile} msg] $msg $::errorInfo $::errorCode
+} -cleanup {
+    removeFile source.file
+} -result {1 {} {Simulated errorInfo stuff
     invoked from within
 "source $sourcefile"} NONE}
-test source-3.5 {return with special code etc.} {
-    makeFile {
+
+test source-3.5 {return with special code etc.} -setup {
+    set sourcefile [makeFile {
 	set x new-x
 	return -code error -errorinfo "Simulated errorInfo stuff" \
 		-errorcode {a b c}
 	set y new-y
-    } source.file
-    list [catch {source $sourcefile} msg] $msg $errorInfo $errorCode
-} {1 {} {Simulated errorInfo stuff
+    } source.file]
+} -body {
+    list [catch {source $sourcefile} msg] $msg $::errorInfo $::errorCode
+} -cleanup {
+    removeFile source.file
+} -result {1 {} {Simulated errorInfo stuff
     invoked from within
 "source $sourcefile"} {a b c}}
 
+
 # Test for the Macintosh specfic features of the source command
-test source-4.1 {source error conditions} {macOnly} {
-    list [catch {source -rsrc _no_exist_} msg] $msg
-} [list 1 "The resource \"_no_exist_\" could not be loaded from application."]
-test source-4.2 {source error conditions} {macOnly} {
-    list [catch {source -rsrcid bad_id} msg] $msg
-} [list 1 "expected integer but got \"bad_id\""]
-test source-4.3 {source error conditions} {macOnly} {
-    list [catch {source -rsrc rsrcName fileName extra} msg] $msg
-} {1 {wrong # args: should be "source fileName" or "source -rsrc name ?fileName?" or "source -rsrcid id ?fileName?"}}
-test source-4.4 {source error conditions} {macOnly} {
-    list [catch {source non_switch rsrcName} msg] $msg
-} {1 {bad argument: should be "source fileName" or "source -rsrc name ?fileName?" or "source -rsrcid id ?fileName?"}}
-test source-4.5 {source error conditions} {macOnly} {
-    list [catch {source -bad_switch argument} msg] $msg
-} {1 {bad argument: should be "source fileName" or "source -rsrc name ?fileName?" or "source -rsrcid id ?fileName?"}}
-test source-5.1 {source resource files} {macOnly} {
-    list [catch {source -rsrc rsrcName bad_file} msg] $msg
-} [list 1 "Error finding the file: \"bad_file\"."]
-test source-5.2 {source resource files} {macOnly} {
-    makeFile {return} source.file
-    list [catch {source -rsrc rsrcName $sourcefile} msg] $msg
-} [list 1 "Error reading the file: \"$sourcefile\"."]
-test source-5.3 {source resource files} {macOnly} {
-    testWriteTextResource -rsrc rsrcName -file rsrc.file {set msg2 ok; return}
-    set result [catch {source -rsrc rsrcName rsrc.file} msg]
+test source-4.1 {source error conditions} -constraints macOnly -body {
+    source -rsrc _no_exist_
+} -result {The resource "_no_exist_" could not be loaded from application.} \
+  -returnCodes error 
+
+test source-4.2 {source error conditions} -constraints macOnly -body {
+    source -rsrcid bad_id
+} -returnCodes error -result {expected integer but got "bad_id"}
+
+test source-4.3 {source error conditions} -constraints macOnly -body {
+    source -rsrc rsrcName fileName extra
+} -returnCodes error -result {wrong # args: should be "source fileName" or "source -rsrc name ?fileName?" or "source -rsrcid id ?fileName?" or "source -encoding name fileName"}
+
+test source-4.4 {source error conditions} -constraints macOnly -body {
+    source non_switch rsrcName
+} -returnCodes error -result {bad argument: should be "source fileName" or "source -rsrc name ?fileName?" or "source -rsrcid id ?fileName?" or "source -encoding name fileName"}
+
+test source-4.5 {source error conditions} -constraints macOnly -body {
+    source -bad_switch argument
+} -returnCodes error -result {bad argument: should be "source fileName" or "source -rsrc name ?fileName?" or "source -rsrcid id ?fileName?" or "source -encoding name fileName"}
+
+ 
+testConstraint testWriteTextResource \
+	[llength [info commands testWriteTextResource]]
+
+test source-5.1 {source resource files} -constraints macOnly -setup {
+    set sourcefile [makeFile {} bad_file]
+    removeFile bad_file
+} -body {
+    source -rsrc rsrcName $sourcefile
+} -returnCodes error -match glob -result {Error finding the file: "*bad_file".}
+
+test source-5.2 {source resource files} -constraints macOnly -setup {
+    set sourcefile [makeFile {return} source.file]
+} -body {
+    source -rsrc rsrcName $sourcefile
+} -cleanup {
+    removeFile source.file
+} -returnCodes error -match glob \
+  -result {Error reading the file: "*source.file".}
+
+test source-5.3 {source resource files} -constraints {
+    macOnly testWriteTextResource
+} -setup {
+    set msg2 unset
+    set rsrcFile [makeFile {} rsrc.file]
     removeFile rsrc.file
+    testWriteTextResource -rsrc rsrcName -file $rsrc.file {set msg2 ok; return}
+} -body {
+    set result [catch {source -rsrc rsrcName rsrc.file} msg]
     list $msg2 $result $msg
-} [list ok 0 {}]
-test source-5.4 {source resource files} {macOnly} {
-    catch {unset msg2}
-    testWriteTextResource -rsrc fileRsrcName -file rsrc.file {set msg2 ok; return}
-    source -rsrc fileRsrcName rsrc.file
-    set result [catch {source -rsrc fileRsrcName} msg]    
+} -cleanup {
     removeFile rsrc.file
+} -result [list ok 0 {}]
+
+test source-5.4 {source resource files} -constraints {
+    macOnly testWriteTextResource
+} -setup {
+    set msg2 unset
+    set rsrsFile [makeFile {} rsrc.file]
+    removeFile rsrc.file
+    testWriteTextResource -rsrc fileRsrcName \
+	    -file $rsrcFile {set msg2 ok; return}
+} -body {
+    source -rsrc fileRsrcName $rsrcFile
+    set result [catch {source -rsrc fileRsrcName} msg]    
     list $msg2 $result $msg
-} [list ok 1 {The resource "fileRsrcName" could not be loaded from application.}]
-test source-5.5 {source resource files} {macOnly} {
-    testWriteTextResource -rsrcid 200 -file rsrc.file {set msg2 hello; set msg3 bye}
-    set result [catch {source -rsrcid 200 rsrc.file} msg]
+} -cleanup {
+    removeFile rsrc.file
+} -result [list ok 1 {The resource "fileRsrcName" could not be loaded from application.}]
+
+test source-5.5 {source resource files} -constraints {
+    macOnly testWriteTextResource
+} -setup {
+    set msg2 unset
+    set rsrcFile [makeFile {} rsrc.file]
     removeFile rsrc.file
+    testWriteTextResource -rsrcid 200 \
+	    -file $rsrcFile {set msg2 hello; set msg3 bye}
+} -body {
+    set result [catch {source -rsrcid 200 $rsrcFile} msg]
     list $msg2 $result $msg
-} [list hello 0 bye]
-test source-5.6 {source resource files} {macOnly} {
-    testWriteTextResource -rsrcid 200 -file rsrc.file {set msg2 hello; error bad; set msg3 bye}
-    set result [catch {source -rsrcid 200 rsrc.file} msg]
+} -cleanup {
+    removeFile rsrc.file
+} -result [list hello 0 bye]
+
+test source-5.6 {source resource files} -constraints {
+    macOnly testWriteTextResource
+} -setup {
+    set msg2 unset
+    set rsrcFile [makeFile {} rsrc.file]
     removeFile rsrc.file
+    testWriteTextResource -rsrcid 200 \
+	    -file $rsrcFile {set msg2 hello; error bad; set msg3 bye}
+} -body {
+    set result [catch {source -rsrcid 200 rsrc.file} msg]
     list $msg2 $result $msg
-} [list hello 1 bad]
+} -cleanup {
+    removeFile rsrc.file
+} -result [list hello 1 bad]
+
 
-test source-6.1 {source is binary ok} {
+test source-6.1 {source is binary ok} -setup {
+    # Note [makeFile] writes in the system encoding.
+    # [source] defaults to reading in the system encoding.
+    set sourcefile [makeFile [list set x "a b\0c"] source.file]
+} -body {
     set x {}
-    makeFile [list set x "a b\0c"] source.file
     source $sourcefile
     string length $x
-} 5
-test source-6.2 {source skips everything after Ctrl-Z: Bug 2040} {
+} -cleanup {
+    removeFile source.file
+} -result 5
+
+test source-6.2 {source skips everything after Ctrl-Z: Bug 2040} -setup {
+    set sourcefile [makeFile "set x ab\32c" source.file]
+} -body {
     set x {}
-    makeFile [list set x "ab\32c"] source.file
     source $sourcefile
     string length $x
-} 2
+} -cleanup {
+    removeFile source.file
+} -result 2
+
+test source-7.1 {source -encoding test} -setup {
+    set sourcefile [makeFile {} source.file]
+    removeFile source.file
+    set f [open $sourcefile w]
+    fconfigure $f -encoding utf-8
+    puts $f "set symbol(square-root) \u221A; set x correct"
+    close $f
+} -body {
+    set x unset
+    source -encoding utf-8 $sourcefile
+    set x
+} -cleanup {
+    removeFile source.file
+} -result correct
+
+test source-7.2 {source -encoding test} -setup {
+    # This tests for bad interactions between [source -encoding]
+    # and use of the Control-Z character (\u001A) as a cross-platform
+    # EOF character by [source].  Here we write out and the [source] a
+    # file that contains the byte \x1A, although not the character \u001A in
+    # the indicated encoding.
+    set sourcefile [makeFile {} source.file]
+    removeFile source.file
+    set f [open $sourcefile w]
+    fconfigure $f -encoding unicode
+    puts $f "set symbol(square-root) \u221A; set x correct"
+    close $f
+} -body {
+    set x unset
+    source -encoding unicode $sourcefile
+    set x
+} -cleanup {
+    removeFile source.file
+} -result correct
 
-# cleanup
-catch {::tcltest::removeFile source.file}
-::tcltest::cleanupTests
+test source-7.3 {source -encoding: syntax} -body {
+    # Have to spell out the -encoding option
+    source -e utf-8 no_file
+} -returnCodes 1 -match glob -result {bad option*}
+
+test source-7.4 {source -encoding: syntax} -setup {
+    set sourcefile [makeFile {} source.file]
+} -body {
+    source -encoding no-such-encoding $sourcefile
+} -cleanup {
+    removeFile source.file
+} -returnCodes 1 -match glob -result {unknown encoding*}
+
+test source-7.5 {source -encoding: correct operation} -setup {
+    set sourcefile [makeFile {} source.file]
+    removeFile source.file
+    set f [open $sourcefile w]
+    fconfigure $f -encoding utf-8
+    puts $f "proc \u20ac {} {return foo}"
+    close $f
+} -body {
+    source -encoding utf-8 $sourcefile
+    \u20ac
+} -cleanup {
+    removeFile source.file
+    rename \u20ac {}
+} -result foo
+
+test source-7.6 {source -encoding: mismatch encoding error} -setup {
+    set sourcefile [makeFile {} source.file]
+    removeFile source.file
+    set f [open $sourcefile w]
+    fconfigure $f -encoding utf-8
+    puts $f "proc \u20ac {} {return foo}"
+    close $f
+} -body {
+    source -encoding ascii $sourcefile
+    \u20ac
+} -cleanup {
+    removeFile source.file
+} -returnCodes error -match glob -result {invalid command name*}
+
+cleanupTests
+}
+namespace delete ::tcl::test::source
 return