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Text File | 1997-08-15 | 13.7 KB | 448 lines | [TEXT/ALFA] |
- # This file contains support code for the Tcl test suite. It is
- # normally sourced by the individual files in the test suite before
- # they run their tests. This improved approach to testing was designed
- # and initially implemented by Mary Ann May-Pumphrey of Sun Microsystems.
- #
- # Copyright (c) 1990-1994 The Regents of the University of California.
- # Copyright (c) 1994-1996 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: @(#) defs 1.60 97/08/13 18:10:19
-
- if ![info exists VERBOSE] {
- set VERBOSE 0
- }
- if ![info exists TESTS] {
- set TESTS {}
- }
-
- # If tests are being run as root, issue a warning message and set a
- # variable to prevent some tests from running at all.
-
- set user {}
- if {$tcl_platform(platform) == "unix"} {
- catch {set user [exec whoami]}
- if {$user == ""} {
- catch {regexp {^[^(]*\(([^)]*)\)} [exec id] dummy user}
- }
- if {$user == ""} {set user root}
- if {$user == "root"} {
- puts stdout "Warning: you're executing as root. I'll have to"
- puts stdout "skip some of the tests, since they'll fail as root."
- set testConfig(root) 1
- }
- }
-
- # Some of the tests don't work on some system configurations due to
- # differences in word length, file system configuration, etc. In order
- # to prevent false alarms, these tests are generally only run in the
- # master development directory for Tcl. The presence of a file
- # "doAllTests" in this directory is used to indicate that the non-portable
- # tests should be run.
-
- # If there is no "memory" command (because memory debugging isn't
- # enabled), generate a dummy command that does nothing.
-
- if {[info commands memory] == ""} {
- proc memory args {}
- }
-
- # Check configuration information that will determine which tests
- # to run. To do this, create an array testConfig. Each element
- # has a 0 or 1 value, and the following elements are defined:
- # unixOnly - 1 means this is a UNIX platform, so it's OK
- # to run tests that only work under UNIX.
- # macOnly - 1 means this is a Mac platform, so it's OK
- # to run tests that only work on Macs.
- # pcOnly - 1 means this is a PC platform, so it's OK to
- # run tests that only work on PCs.
- # unixOrPc - 1 means this is a UNIX or PC platform.
- # macOrPc - 1 means this is a Mac or PC platform.
- # macOrUnix - 1 means this is a Mac or UNIX platform.
- # nonPortable - 1 means this the tests are being running in
- # the master Tcl/Tk development environment;
- # Some tests are inherently non-portable because
- # they depend on things like word length, file system
- # configuration, window manager, etc. These tests
- # are only run in the main Tcl development directory
- # where the configuration is well known. The presence
- # of the file "doAllTests" in this directory indicates
- # that it is safe to run non-portable tests.
- # knownBug - The test is known to fail and the bug is not yet
- # fixed. The test will be run only if the file
- # "doBuggyTests" exists (intended for Tcl dev. group
- # internal use only).
- # tempNotPc - The inverse of pcOnly. This flag is used to
- # temporarily disable a test.
- # tempNotMac - The inverse of macOnly. This flag is used to
- # temporarily disable a test.
- # nonBlockFiles - 1 means this platform supports setting files into
- # nonblocking mode.
- # asyncPipeClose- 1 means this platform supports async flush and
- # async close on a pipe.
- # unixExecs - 1 means this machine has commands such as 'cat',
- # 'echo' etc available.
- # notIfCompiled - 1 means this that it is safe to run tests that
- # might fail if the bytecode compiler is used. This
- # element is set 1 if the file "doAllTests" exists in
- # this directory. Normally, this element is 0 so that
- # tests that fail with the bytecode compiler are
- # skipped. As of 11/2/96 these are the history tests
- # since they depend on accurate source location
- # information.
-
- catch {unset testConfig}
- if {$tcl_platform(platform) == "unix"} {
- set testConfig(unixOnly) 1
- set testConfig(tempNotPc) 1
- set testConfig(tempNotMac) 1
- } else {
- set testConfig(unixOnly) 0
- }
- if {$tcl_platform(platform) == "macintosh"} {
- set testConfig(tempNotPc) 1
- set testConfig(macOnly) 1
- } else {
- set testConfig(macOnly) 0
- }
- if {$tcl_platform(platform) == "windows"} {
- set testConfig(tempNotMac) 1
- set testConfig(pcOnly) 1
- } else {
- set testConfig(pcOnly) 0
- }
- set testConfig(unixOrPc) [expr $testConfig(unixOnly) || $testConfig(pcOnly)]
- set testConfig(macOrPc) [expr $testConfig(macOnly) || $testConfig(pcOnly)]
- set testConfig(macOrUnix) [expr $testConfig(macOnly) || $testConfig(unixOnly)]
- set testConfig(nonPortable) [expr [file exists doAllTests] || [file exists doAllTe]]
- set testConfig(knownBug) [expr [file exists doBuggyTests] || [file exists doBuggyT]]
- set testConfig(notIfCompiled) [file exists doAllCompilerTests]
-
- set testConfig(unix) $testConfig(unixOnly)
- set testConfig(mac) $testConfig(macOnly)
- set testConfig(pc) $testConfig(pcOnly)
-
- set testConfig(nt) [expr {$tcl_platform(os) == "Windows NT"}]
- set testConfig(95) [expr {$tcl_platform(os) == "Windows 95"}]
- set testConfig(win32s) [expr {$tcl_platform(os) == "Win32s"}]
-
- # The following config switches are used to mark tests that crash on
- # certain platforms, so that they can be reactivated again when the
- # underlying problem is fixed.
-
- set testConfig(pcCrash) $testConfig(macOrUnix)
- set testConfig(macCrash) $testConfig(unixOrPc)
- set testConfig(unixCrash) $testConfig(macOrPc)
-
- if {[catch {set f [open defs r]}]} {
- set testConfig(nonBlockFiles) 1
- } else {
- if {[expr [catch {fconfigure $f -blocking off}]] == 0} {
- set testConfig(nonBlockFiles) 1
- } else {
- set testConfig(nonBlockFiles) 0
- }
- close $f
- }
-
- trace variable testConfig r safeFetch
-
- proc safeFetch {n1 n2 op} {
- global testConfig
-
- if {($n2 != {}) && ([info exists testConfig($n2)] == 0)} {
- set testConfig($n2) 0
- }
- }
-
- # Test for SCO Unix - cannot run async flushing tests because a potential
- # problem with select is apparently interfering. (Mark Diekhans).
-
- if {$tcl_platform(platform) == "unix"} {
- if {[catch {exec uname -X | fgrep {Release = 3.2v}}] == 0} {
- set testConfig(asyncPipeClose) 0
- } else {
- set testConfig(asyncPipeClose) 1
- }
- } else {
- set testConfig(asyncPipeClose) 1
- }
-
- # Test to see if execed commands such as cat, echo, rm and so forth are
- # present on this machine.
-
- set testConfig(unixExecs) 1
- if {$tcl_platform(platform) == "macintosh"} {
- set testConfig(unixExecs) 0
- }
- if {($testConfig(unixExecs) == 1) && ($tcl_platform(platform) == "windows")} {
- if {[catch {exec cat defs}] == 1} {
- set testConfig(unixExecs) 0
- }
- if {($testConfig(unixExecs) == 1) && ([catch {exec echo hello}] == 1)} {
- set testConfig(unixExecs) 0
- }
- if {($testConfig(unixExecs) == 1) && \
- ([catch {exec sh -c echo hello}] == 1)} {
- set testConfig(unixExecs) 0
- }
- if {($testConfig(unixExecs) == 1) && ([catch {exec wc defs}] == 1)} {
- set testConfig(unixExecs) 0
- }
- if {$testConfig(unixExecs) == 1} {
- exec echo hello > removeMe
- if {[catch {exec rm removeMe}] == 1} {
- set testConfig(unixExecs) 0
- }
- }
- if {($testConfig(unixExecs) == 1) && ([catch {exec sleep 1}] == 1)} {
- set testConfig(unixExecs) 0
- }
- if {($testConfig(unixExecs) == 1) && \
- ([catch {exec fgrep unixExecs defs}] == 1)} {
- set testConfig(unixExecs) 0
- }
- if {($testConfig(unixExecs) == 1) && ([catch {exec ps}] == 1)} {
- set testConfig(unixExecs) 0
- }
- if {($testConfig(unixExecs) == 1) && \
- ([catch {exec echo abc > removeMe}] == 0) && \
- ([catch {exec chmod 644 removeMe}] == 1) && \
- ([catch {exec rm removeMe}] == 0)} {
- set testConfig(unixExecs) 0
- } else {
- catch {exec rm -f removeMe}
- }
- if {($testConfig(unixExecs) == 1) && \
- ([catch {exec mkdir removeMe}] == 1)} {
- set testConfig(unixExecs) 0
- } else {
- catch {exec rm -r removeMe}
- }
- if {$testConfig(unixExecs) == 0} {
- puts stdout "Warning: Unix-style executables are not available, so"
- puts stdout "some tests will be skipped."
- }
- }
-
- proc print_verbose {name description constraints script code answer} {
- puts stdout "\n"
- if {[string length $constraints]} {
- puts stdout "==== $name $description\t--- ($constraints) ---"
- } else {
- puts stdout "==== $name $description"
- }
- puts stdout "==== Contents of test case:"
- puts stdout "$script"
- if {$code != 0} {
- if {$code == 1} {
- puts stdout "==== Test generated error:"
- puts stdout $answer
- } elseif {$code == 2} {
- puts stdout "==== Test generated return exception; result was:"
- puts stdout $answer
- } elseif {$code == 3} {
- puts stdout "==== Test generated break exception"
- } elseif {$code == 4} {
- puts stdout "==== Test generated continue exception"
- } else {
- puts stdout "==== Test generated exception $code; message was:"
- puts stdout $answer
- }
- } else {
- puts stdout "==== Result was:"
- puts stdout "$answer"
- }
- }
-
- # test --
- # This procedure runs a test and prints an error message if the
- # test fails. If VERBOSE has been set, it also prints a message
- # even if the test succeeds. The test will be skipped if it
- # doesn't match the TESTS variable, or if one of the elements
- # of "constraints" turns out not to be true.
- #
- # Arguments:
- # name - Name of test, in the form foo-1.2.
- # description - Short textual description of the test, to
- # help humans understand what it does.
- # constraints - A list of one or more keywords, each of
- # which must be the name of an element in
- # the array "testConfig". If any of these
- # elements is zero, the test is skipped.
- # This argument may be omitted.
- # script - Script to run to carry out the test. It must
- # return a result that can be checked for
- # correctness.
- # answer - Expected result from script.
-
- proc test {name description script answer args} {
- global VERBOSE TESTS testConfig
- if {[string compare $TESTS ""] != 0} then {
- set ok 0
- foreach test $TESTS {
- if [string match $test $name] then {
- set ok 1
- break
- }
- }
- if !$ok then return
- }
- set i [llength $args]
- if {$i == 0} {
- set constraints {}
- } elseif {$i == 1} {
- # "constraints" argument exists; shuffle arguments down, then
- # make sure that the constraints are satisfied.
-
- set constraints $script
- set script $answer
- set answer [lindex $args 0]
- set doTest 0
- if {[string match {*[$\[]*} $constraints] != 0} {
- # full expression, e.g. {$foo > [info tclversion]}
-
- catch {set doTest [uplevel #0 expr [list $constraints]]} msg
- } elseif {[regexp {[^.a-zA-Z0-9 ]+} $constraints] != 0} {
- # something like {a || b} should be turned into
- # $testConfig(a) || $testConfig(b).
-
- regsub -all {[.a-zA-Z0-9]+} $constraints {$testConfig(&)} c
- catch {set doTest [eval expr $c]}
- } else {
- # just simple constraints such as {unixOnly fonts}.
-
- set doTest 1
- foreach constraint $constraints {
- if {![info exists testConfig($constraint)]
- || !$testConfig($constraint)} {
- set doTest 0
- break
- }
- }
- }
- if {$doTest == 0} {
- if $VERBOSE then {
- puts stdout "++++ $name SKIPPED: $constraints"
- }
- return
- }
- } else {
- error "wrong # args: must be \"test name description ?constraints? script answer\""
- }
- memory tag $name
- set code [catch {uplevel $script} result]
- if {$code != 0} {
- print_verbose $name $description $constraints $script \
- $code $result
- } elseif {[string compare $result $answer] == 0} then {
- if $VERBOSE then {
- if {$VERBOSE > 0} {
- print_verbose $name $description $constraints $script \
- $code $result
- }
- if {$VERBOSE != -2} {
- puts stdout "++++ $name PASSED"
- }
- }
- } else {
- print_verbose $name $description $constraints $script \
- $code $result
- puts stdout "---- Result should have been:"
- puts stdout "$answer"
- puts stdout "---- $name FAILED"
- }
- }
-
- proc dotests {file args} {
- global TESTS
- set savedTests $TESTS
- set TESTS $args
- source $file
- set TESTS $savedTests
- }
-
- proc normalizeMsg {msg} {
- regsub "\n$" [string tolower $msg] "" msg
- regsub -all "\n\n" $msg "\n" msg
- regsub -all "\n\}" $msg "\}" msg
- return $msg
- }
-
- proc makeFile {contents name} {
- set fd [open $name w]
- fconfigure $fd -translation lf
- if {[string index $contents [expr [string length $contents] - 1]] == "\n"} {
- puts -nonewline $fd $contents
- } else {
- puts $fd $contents
- }
- close $fd
- }
-
- proc removeFile {name} {
- file delete $name
- }
-
- proc makeDirectory {name} {
- file mkdir $name
- }
-
- proc removeDirectory {name} {
- file delete -force $name
- }
-
- proc viewFile {name} {
- global tcl_platform testConfig
- if {($tcl_platform(platform) == "macintosh") || \
- ($testConfig(unixExecs) == 0)} {
- set f [open $name]
- set data [read -nonewline $f]
- close $f
- return $data
- } else {
- exec cat $name
- }
- }
-
- # Locate tcltest executable
-
- set tcltest [info nameofexecutable]
-
- if {$tcltest == "{}"} {
- set tcltest {}
- puts "Unable to find tcltest executable, multiple process tests will fail."
- }
-
- if {$tcl_platform(os) != "Win32s"} {
- # Don't even try running another copy of tcltest under win32s, or you
- # get an error dialog about multiple instances.
-
- catch {
- file delete -force tmp
- set f [open tmp w]
- puts $f {
- exit
- }
- close $f
- set f [open "|[list $tcltest tmp]" r]
- close $f
- set testConfig(stdio) 1
- }
- }
-
- if {($tcl_platform(platform) == "windows") && ($testConfig(stdio) == 0)} {
- puts "(will skip tests that redirect stdio of exec'd 32-bit applications)"
- }
-
- catch {socket} msg
- set testConfig(socket) [expr {$msg != "sockets are not available on this system"}]
-
- if {$testConfig(socket) == 0} {
- puts "(will skip tests that use sockets)"
- }
-
-
-