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1 | package Test::Harness; |
2 | |
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3 | BEGIN {require 5.002;} |
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4 | use Exporter; |
5 | use Benchmark; |
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6 | use Config; |
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7 | use FileHandle; |
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8 | use strict; |
9 | |
10 | use vars qw($VERSION $verbose $switches $have_devel_corestack $curtest |
11 | @ISA @EXPORT @EXPORT_OK); |
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12 | $have_devel_corestack = 0; |
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13 | |
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14 | $VERSION = "1.1502"; |
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15 | |
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16 | @ISA=('Exporter'); |
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17 | @EXPORT= qw(&runtests); |
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18 | @EXPORT_OK= qw($verbose $switches); |
19 | |
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20 | format STDOUT_TOP = |
21 | Failed Test Status Wstat Total Fail Failed List of failed |
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22 | ------------------------------------------------------------------------------- |
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23 | . |
24 | |
25 | format STDOUT = |
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26 | @<<<<<<<<<<<<<< @>> @>>>> @>>>> @>>> ^##.##% ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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27 | { $curtest->{name}, |
28 | $curtest->{estat}, |
29 | $curtest->{wstat}, |
30 | $curtest->{max}, |
31 | $curtest->{failed}, |
32 | $curtest->{percent}, |
33 | $curtest->{canon} |
34 | } |
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35 | ~~ ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
36 | $curtest->{canon} |
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37 | . |
38 | |
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39 | |
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40 | $verbose = 0; |
41 | $switches = "-w"; |
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42 | |
43 | sub runtests { |
44 | my(@tests) = @_; |
45 | local($|) = 1; |
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46 | my($test,$te,$ok,$next,$max,$pct,$totok,@failed,%failedtests); |
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47 | my $totmax = 0; |
48 | my $files = 0; |
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49 | my $bad = 0; |
50 | my $good = 0; |
51 | my $total = @tests; |
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52 | |
53 | # pass -I flags to children |
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54 | my $old5lib = $ENV{PERL5LIB}; |
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55 | local($ENV{'PERL5LIB'}) = join($Config{path_sep}, @INC); |
56 | |
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57 | if ($^O eq 'VMS') { $switches =~ s/-(\S*[A-Z]\S*)/"-$1"/g } |
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58 | |
59 | my $t_start = new Benchmark; |
60 | while ($test = shift(@tests)) { |
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61 | $te = $test; |
62 | chop($te); |
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63 | if ($^O eq 'VMS') { $te =~ s/^.*\.t\./[.t./; } |
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64 | print "$te" . '.' x (20 - length($te)); |
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65 | my $fh = new FileHandle; |
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66 | $fh->open($test) or print "can't open $test. $!\n"; |
67 | my $first = <$fh>; |
68 | my $s = $switches; |
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69 | $s .= q[ "-T"] if $first =~ /^#!.*\bperl.*-\w*T/; |
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70 | $fh->close or print "can't close $test. $!\n"; |
71 | my $cmd = "$^X $s $test|"; |
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72 | $cmd = "MCR $cmd" if $^O eq 'VMS'; |
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73 | $fh->open($cmd) or print "can't run $test. $!\n"; |
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74 | $ok = $next = $max = 0; |
75 | @failed = (); |
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76 | my $skipped = 0; |
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77 | while (<$fh>) { |
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78 | if( $verbose ){ |
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79 | print $_; |
80 | } |
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81 | if (/^1\.\.([0-9]+)/) { |
82 | $max = $1; |
83 | $totmax += $max; |
84 | $files++; |
85 | $next = 1; |
86 | } elsif ($max && /^(not\s+)?ok\b/) { |
87 | my $this = $next; |
88 | if (/^not ok\s*(\d*)/){ |
89 | $this = $1 if $1 > 0; |
90 | push @failed, $this; |
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91 | } elsif (/^ok\s*(\d*)(\s*\#\s*[Ss]kip)?/) { |
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92 | $this = $1 if $1 > 0; |
93 | $ok++; |
94 | $totok++; |
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95 | $skipped++ if defined $2; |
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96 | } |
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97 | if ($this > $next) { |
98 | # warn "Test output counter mismatch [test $this]\n"; |
99 | # no need to warn probably |
100 | push @failed, $next..$this-1; |
101 | } elsif ($this < $next) { |
102 | #we have seen more "ok" lines than the number suggests |
103 | warn "Confused test output: test $this answered after test ", $next-1, "\n"; |
104 | $next = $this; |
105 | } |
106 | $next = $this + 1; |
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107 | } |
108 | } |
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109 | $fh->close; # must close to reap child resource values |
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110 | my $wstatus = $?; |
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111 | my $estatus; |
112 | $estatus = ($^O eq 'VMS' |
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113 | ? eval 'use vmsish "status"; $estatus = $?' |
114 | : $wstatus >> 8); |
115 | if ($wstatus) { |
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116 | my ($failed, $canon, $percent) = ('??', '??'); |
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117 | printf "dubious\n\tTest returned status $estatus (wstat %d, 0x%x)\n", |
118 | $wstatus,$wstatus; |
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119 | print "\t\t(VMS status is $estatus)\n" if $^O eq 'VMS'; |
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120 | if (corestatus($wstatus)) { # until we have a wait module |
121 | if ($have_devel_corestack) { |
122 | Devel::CoreStack::stack($^X); |
123 | } else { |
124 | print "\ttest program seems to have generated a core\n"; |
125 | } |
126 | } |
127 | $bad++; |
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128 | if ($max) { |
129 | if ($next == $max + 1 and not @failed) { |
130 | print "\tafter all the subtests completed successfully\n"; |
131 | $percent = 0; |
132 | $failed = 0; # But we do not set $canon! |
133 | } else { |
134 | push @failed, $next..$max; |
135 | $failed = @failed; |
136 | (my $txt, $canon) = canonfailed($max,@failed); |
137 | $percent = 100*(scalar @failed)/$max; |
138 | print "DIED. ",$txt; |
139 | } |
140 | } |
141 | $failedtests{$test} = { canon => $canon, max => $max || '??', |
142 | failed => $failed, |
143 | name => $test, percent => $percent, |
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144 | estat => $estatus, wstat => $wstatus, |
145 | }; |
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146 | } elsif ($ok == $max && $next == $max+1) { |
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147 | if ($max and $skipped) { |
148 | my $ender = 's' x ($skipped > 1); |
149 | print "ok, $skipped subtest$ender skipped on this platform\n"; |
150 | } elsif ($max) { |
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151 | print "ok\n"; |
152 | } else { |
153 | print "skipping test on this platform\n"; |
154 | } |
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155 | $good++; |
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156 | } elsif ($max) { |
157 | if ($next <= $max) { |
158 | push @failed, $next..$max; |
159 | } |
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160 | if (@failed) { |
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161 | my ($txt, $canon) = canonfailed($max,@failed); |
162 | print $txt; |
163 | $failedtests{$test} = { canon => $canon, max => $max, |
164 | failed => scalar @failed, |
165 | name => $test, percent => 100*(scalar @failed)/$max, |
166 | estat => '', wstat => '', |
167 | }; |
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168 | } else { |
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169 | print "Don't know which tests failed: got $ok ok, expected $max\n"; |
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170 | $failedtests{$test} = { canon => '??', max => $max, |
171 | failed => '??', |
172 | name => $test, percent => undef, |
173 | estat => '', wstat => '', |
174 | }; |
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175 | } |
176 | $bad++; |
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177 | } elsif ($next == 0) { |
178 | print "FAILED before any test output arrived\n"; |
179 | $bad++; |
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180 | $failedtests{$test} = { canon => '??', max => '??', |
181 | failed => '??', |
182 | name => $test, percent => undef, |
183 | estat => '', wstat => '', |
184 | }; |
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185 | } |
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186 | } |
187 | my $t_total = timediff(new Benchmark, $t_start); |
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188 | |
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189 | if ($^O eq 'VMS') { |
190 | if (defined $old5lib) { |
191 | $ENV{PERL5LIB} = $old5lib; |
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192 | } else { |
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193 | delete $ENV{PERL5LIB}; |
194 | } |
195 | } |
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196 | if ($bad == 0 && $totmax) { |
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197 | print "All tests successful.\n"; |
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198 | } elsif ($total==0){ |
199 | die "FAILED--no tests were run for some reason.\n"; |
200 | } elsif ($totmax==0) { |
201 | my $blurb = $total==1 ? "script" : "scripts"; |
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202 | die "FAILED--$total test $blurb could be run, alas--no output ever seen\n"; |
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203 | } else { |
204 | $pct = sprintf("%.2f", $good / $total * 100); |
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205 | my $subpct = sprintf " %d/%d subtests failed, %.2f%% okay.", |
206 | $totmax - $totok, $totmax, 100*$totok/$totmax; |
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207 | my $script; |
208 | for $script (sort keys %failedtests) { |
209 | $curtest = $failedtests{$script}; |
210 | write; |
211 | } |
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212 | if ($bad) { |
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213 | die "Failed $bad/$total test scripts, $pct% okay.$subpct\n"; |
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214 | } |
215 | } |
216 | printf("Files=%d, Tests=%d, %s\n", $files, $totmax, timestr($t_total, 'nop')); |
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217 | |
218 | return ($bad == 0 && $totmax) ; |
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219 | } |
220 | |
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221 | my $tried_devel_corestack; |
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222 | sub corestatus { |
223 | my($st) = @_; |
224 | my($ret); |
225 | |
226 | eval {require 'wait.ph'}; |
227 | if ($@) { |
228 | SWITCH: { |
229 | $ret = ($st & 0200); # Tim says, this is for 90% |
230 | } |
231 | } else { |
232 | $ret = WCOREDUMP($st); |
233 | } |
234 | |
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235 | eval { require Devel::CoreStack; $have_devel_corestack++ } |
236 | unless $tried_devel_corestack++; |
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237 | |
238 | $ret; |
239 | } |
240 | |
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241 | sub canonfailed ($@) { |
242 | my($max,@failed) = @_; |
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243 | my %seen; |
244 | @failed = sort {$a <=> $b} grep !$seen{$_}++, @failed; |
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245 | my $failed = @failed; |
246 | my @result = (); |
247 | my @canon = (); |
248 | my $min; |
249 | my $last = $min = shift @failed; |
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250 | my $canon; |
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251 | if (@failed) { |
252 | for (@failed, $failed[-1]) { # don't forget the last one |
253 | if ($_ > $last+1 || $_ == $last) { |
254 | if ($min == $last) { |
255 | push @canon, $last; |
256 | } else { |
257 | push @canon, "$min-$last"; |
258 | } |
259 | $min = $_; |
260 | } |
261 | $last = $_; |
262 | } |
263 | local $" = ", "; |
264 | push @result, "FAILED tests @canon\n"; |
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265 | $canon = "@canon"; |
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266 | } else { |
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267 | push @result, "FAILED test $last\n"; |
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268 | $canon = $last; |
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269 | } |
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270 | |
271 | push @result, "\tFailed $failed/$max tests, "; |
272 | push @result, sprintf("%.2f",100*(1-$failed/$max)), "% okay\n"; |
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273 | my $txt = join "", @result; |
274 | ($txt, $canon); |
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275 | } |
276 | |
277 | 1; |
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278 | __END__ |
279 | |
280 | =head1 NAME |
281 | |
282 | Test::Harness - run perl standard test scripts with statistics |
283 | |
284 | =head1 SYNOPSIS |
285 | |
286 | use Test::Harness; |
287 | |
288 | runtests(@tests); |
289 | |
290 | =head1 DESCRIPTION |
291 | |
292 | Perl test scripts print to standard output C<"ok N"> for each single |
293 | test, where C<N> is an increasing sequence of integers. The first line |
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294 | output by a standard test script is C<"1..M"> with C<M> being the |
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295 | number of tests that should be run within the test |
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296 | script. Test::Harness::runtests(@tests) runs all the testscripts |
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297 | named as arguments and checks standard output for the expected |
298 | C<"ok N"> strings. |
299 | |
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300 | After all tests have been performed, runtests() prints some |
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301 | performance statistics that are computed by the Benchmark module. |
302 | |
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303 | =head2 The test script output |
304 | |
305 | Any output from the testscript to standard error is ignored and |
306 | bypassed, thus will be seen by the user. Lines written to standard |
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307 | output containing C</^(not\s+)?ok\b/> are interpreted as feedback for |
308 | runtests(). All other lines are discarded. |
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309 | |
310 | It is tolerated if the test numbers after C<ok> are omitted. In this |
311 | case Test::Harness maintains temporarily its own counter until the |
312 | script supplies test numbers again. So the following test script |
313 | |
314 | print <<END; |
315 | 1..6 |
316 | not ok |
317 | ok |
318 | not ok |
319 | ok |
320 | ok |
321 | END |
322 | |
323 | will generate |
324 | |
325 | FAILED tests 1, 3, 6 |
326 | Failed 3/6 tests, 50.00% okay |
327 | |
328 | The global variable $Test::Harness::verbose is exportable and can be |
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329 | used to let runtests() display the standard output of the script |
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330 | without altering the behavior otherwise. |
331 | |
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332 | The global variable $Test::Harness::switches is exportable and can be |
333 | used to set perl command line options used for running the test |
334 | script(s). The default value is C<-w>. |
335 | |
fac76ed7 |
336 | If the standard output line contains substring C< # Skip> (with |
337 | variations in spacing and case) after C<ok> or C<ok NUMBER>, it is |
338 | counted as a skipped test. If the whole testscript succeeds, the |
339 | count of skipped tests is included in the generated output. |
340 | |
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341 | =head1 EXPORT |
342 | |
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343 | C<&runtests> is exported by Test::Harness per default. |
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344 | |
345 | =head1 DIAGNOSTICS |
346 | |
347 | =over 4 |
348 | |
349 | =item C<All tests successful.\nFiles=%d, Tests=%d, %s> |
350 | |
351 | If all tests are successful some statistics about the performance are |
352 | printed. |
353 | |
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354 | =item C<FAILED tests %s\n\tFailed %d/%d tests, %.2f%% okay.> |
355 | |
356 | For any single script that has failing subtests statistics like the |
357 | above are printed. |
358 | |
359 | =item C<Test returned status %d (wstat %d)> |
360 | |
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361 | Scripts that return a non-zero exit status, both C<$? E<gt>E<gt> 8> and C<$?> are |
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362 | printed in a message similar to the above. |
363 | |
364 | =item C<Failed 1 test, %.2f%% okay. %s> |
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365 | |
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366 | =item C<Failed %d/%d tests, %.2f%% okay. %s> |
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367 | |
368 | If not all tests were successful, the script dies with one of the |
369 | above messages. |
370 | |
371 | =back |
372 | |
373 | =head1 SEE ALSO |
374 | |
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375 | See L<Benchmark> for the underlying timing routines. |
376 | |
377 | =head1 AUTHORS |
378 | |
379 | Either Tim Bunce or Andreas Koenig, we don't know. What we know for |
380 | sure is, that it was inspired by Larry Wall's TEST script that came |
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381 | with perl distributions for ages. Numerous anonymous contributors |
382 | exist. Current maintainer is Andreas Koenig. |
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383 | |
384 | =head1 BUGS |
385 | |
386 | Test::Harness uses $^X to determine the perl binary to run the tests |
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387 | with. Test scripts running via the shebang (C<#!>) line may not be |
388 | portable because $^X is not consistent for shebang scripts across |
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389 | platforms. This is no problem when Test::Harness is run with an |
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390 | absolute path to the perl binary or when $^X can be found in the path. |
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391 | |
392 | =cut |