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129 | .\" ======================================================================== | |
130 | .\" | |
131 | .IX Title "Test::Harness::Straps 3" | |
132 | .TH Test::Harness::Straps 3 "2001-09-21" "perl v5.8.8" "Perl Programmers Reference Guide" | |
133 | .SH "NAME" | |
134 | Test::Harness::Straps \- detailed analysis of test results | |
135 | .SH "SYNOPSIS" | |
136 | .IX Header "SYNOPSIS" | |
137 | .Vb 1 | |
138 | \& use Test::Harness::Straps; | |
139 | .Ve | |
140 | .PP | |
141 | .Vb 1 | |
142 | \& my $strap = Test::Harness::Straps->new; | |
143 | .Ve | |
144 | .PP | |
145 | .Vb 4 | |
146 | \& # Various ways to interpret a test | |
147 | \& my %results = $strap->analyze($name, \e@test_output); | |
148 | \& my %results = $strap->analyze_fh($name, $test_filehandle); | |
149 | \& my %results = $strap->analyze_file($test_file); | |
150 | .Ve | |
151 | .PP | |
152 | .Vb 2 | |
153 | \& # UNIMPLEMENTED | |
154 | \& my %total = $strap->total_results; | |
155 | .Ve | |
156 | .PP | |
157 | .Vb 3 | |
158 | \& # Altering the behavior of the strap UNIMPLEMENTED | |
159 | \& my $verbose_output = $strap->dump_verbose(); | |
160 | \& $strap->dump_verbose_fh($output_filehandle); | |
161 | .Ve | |
162 | .SH "DESCRIPTION" | |
163 | .IX Header "DESCRIPTION" | |
164 | \&\fB\s-1THIS\s0 \s-1IS\s0 \s-1ALPHA\s0 \s-1SOFTWARE\s0\fR in that the interface is subject to change | |
165 | in incompatible ways. It is otherwise stable. | |
166 | .PP | |
167 | Test::Harness is limited to printing out its results. This makes | |
168 | analysis of the test results difficult for anything but a human. To | |
169 | make it easier for programs to work with test results, we provide | |
170 | Test::Harness::Straps. Instead of printing the results, straps | |
171 | provide them as raw data. You can also configure how the tests are to | |
172 | be run. | |
173 | .PP | |
174 | The interface is currently incomplete. \fIPlease\fR contact the author | |
175 | if you'd like a feature added or something change or just have | |
176 | comments. | |
177 | .SH "CONSTRUCTION" | |
178 | .IX Header "CONSTRUCTION" | |
179 | .Sh "\fInew()\fP" | |
180 | .IX Subsection "new()" | |
181 | .Vb 1 | |
182 | \& my $strap = Test::Harness::Straps->new; | |
183 | .Ve | |
184 | .PP | |
185 | Initialize a new strap. | |
186 | .Sh "$strap\->_init" | |
187 | .IX Subsection "$strap->_init" | |
188 | .Vb 1 | |
189 | \& $strap->_init; | |
190 | .Ve | |
191 | .PP | |
192 | Initialize the internal state of a strap to make it ready for parsing. | |
193 | .SH "ANALYSIS" | |
194 | .IX Header "ANALYSIS" | |
195 | .ie n .Sh "$strap\->analyze( $name, \e@output_lines )" | |
196 | .el .Sh "$strap\->analyze( \f(CW$name\fP, \e@output_lines )" | |
197 | .IX Subsection "$strap->analyze( $name, @output_lines )" | |
198 | .Vb 1 | |
199 | \& my %results = $strap->analyze($name, \e@test_output); | |
200 | .Ve | |
201 | .PP | |
202 | Analyzes the output of a single test, assigning it the given \f(CW$name\fR | |
203 | for use in the total report. Returns the \f(CW%results\fR of the test. | |
204 | See Results. | |
205 | .PP | |
206 | \&\f(CW@test_output\fR should be the raw output from the test, including | |
207 | newlines. | |
208 | .ie n .Sh "$strap\->analyze_fh( $name\fP, \f(CW$test_filehandle )" | |
209 | .el .Sh "$strap\->analyze_fh( \f(CW$name\fP, \f(CW$test_filehandle\fP )" | |
210 | .IX Subsection "$strap->analyze_fh( $name, $test_filehandle )" | |
211 | .Vb 1 | |
212 | \& my %results = $strap->analyze_fh($name, $test_filehandle); | |
213 | .Ve | |
214 | .PP | |
215 | Like \f(CW\*(C`analyze\*(C'\fR, but it reads from the given filehandle. | |
216 | .ie n .Sh "$strap\->analyze_file( $test_file )" | |
217 | .el .Sh "$strap\->analyze_file( \f(CW$test_file\fP )" | |
218 | .IX Subsection "$strap->analyze_file( $test_file )" | |
219 | .Vb 1 | |
220 | \& my %results = $strap->analyze_file($test_file); | |
221 | .Ve | |
222 | .PP | |
223 | Like \f(CW\*(C`analyze\*(C'\fR, but it runs the given \f(CW$test_file\fR and parses its | |
224 | results. It will also use that name for the total report. | |
225 | .ie n .Sh "$strap\->_command_line( $file )" | |
226 | .el .Sh "$strap\->_command_line( \f(CW$file\fP )" | |
227 | .IX Subsection "$strap->_command_line( $file )" | |
228 | Returns the full command line that will be run to test \fI$file\fR. | |
229 | .Sh "$strap\->\fI_command()\fP" | |
230 | .IX Subsection "$strap->_command()" | |
231 | Returns the command that runs the test. Combine this with \f(CW\*(C`_switches()\*(C'\fR | |
232 | to build a command line. | |
233 | .PP | |
234 | Typically this is \f(CW$^X\fR, but you can set \f(CW$ENV{HARNESS_PERL}\fR | |
235 | to use a different Perl than what you're running the harness under. | |
236 | This might be to run a threaded Perl, for example. | |
237 | .PP | |
238 | You can also overload this method if you've built your own strap subclass, | |
239 | such as a \s-1PHP\s0 interpreter for a PHP-based strap. | |
240 | .ie n .Sh "$strap\->_switches( $file )" | |
241 | .el .Sh "$strap\->_switches( \f(CW$file\fP )" | |
242 | .IX Subsection "$strap->_switches( $file )" | |
243 | Formats and returns the switches necessary to run the test. | |
244 | .ie n .Sh "$strap\->_cleaned_switches( @switches_from_user )" | |
245 | .el .Sh "$strap\->_cleaned_switches( \f(CW@switches_from_user\fP )" | |
246 | .IX Subsection "$strap->_cleaned_switches( @switches_from_user )" | |
247 | Returns only defined, non\-blank, trimmed switches from the parms passed. | |
248 | .Sh "$strap\->_INC2PERL5LIB" | |
249 | .IX Subsection "$strap->_INC2PERL5LIB" | |
250 | .Vb 1 | |
251 | \& local $ENV{PERL5LIB} = $self->_INC2PERL5LIB; | |
252 | .Ve | |
253 | .PP | |
254 | Takes the current value of \f(CW@INC\fR and turns it into something suitable | |
255 | for putting onto \f(CW\*(C`PERL5LIB\*(C'\fR. | |
256 | .Sh "$strap\->\fI_filtered_INC()\fP" | |
257 | .IX Subsection "$strap->_filtered_INC()" | |
258 | .Vb 1 | |
259 | \& my @filtered_inc = $self->_filtered_INC; | |
260 | .Ve | |
261 | .PP | |
262 | Shortens \f(CW@INC\fR by removing redundant and unnecessary entries. | |
263 | Necessary for OSes with limited command line lengths, like \s-1VMS\s0. | |
264 | .Sh "$strap\->\fI_restore_PERL5LIB()\fP" | |
265 | .IX Subsection "$strap->_restore_PERL5LIB()" | |
266 | .Vb 1 | |
267 | \& $self->_restore_PERL5LIB; | |
268 | .Ve | |
269 | .PP | |
270 | This restores the original value of the \f(CW\*(C`PERL5LIB\*(C'\fR environment variable. | |
271 | Necessary on \s-1VMS\s0, otherwise a no\-op. | |
272 | .SH "Parsing" | |
273 | .IX Header "Parsing" | |
274 | Methods for identifying what sort of line you're looking at. | |
275 | .ie n .Sh """_is_diagnostic""" | |
276 | .el .Sh "\f(CW_is_diagnostic\fP" | |
277 | .IX Subsection "_is_diagnostic" | |
278 | .Vb 1 | |
279 | \& my $is_diagnostic = $strap->_is_diagnostic($line, \e$comment); | |
280 | .Ve | |
281 | .PP | |
282 | Checks if the given line is a comment. If so, it will place it into | |
283 | \&\f(CW$comment\fR (sans #). | |
284 | .ie n .Sh """_is_header""" | |
285 | .el .Sh "\f(CW_is_header\fP" | |
286 | .IX Subsection "_is_header" | |
287 | .Vb 1 | |
288 | \& my $is_header = $strap->_is_header($line); | |
289 | .Ve | |
290 | .PP | |
291 | Checks if the given line is a header (1..M) line. If so, it places how | |
292 | many tests there will be in \f(CW\*(C`$strap\->{max}\*(C'\fR, a list of which tests | |
293 | are todo in \f(CW\*(C`$strap\->{todo}\*(C'\fR and if the whole test was skipped | |
294 | \&\f(CW\*(C`$strap\->{skip_all}\*(C'\fR contains the reason. | |
295 | .ie n .Sh """_is_bail_out""" | |
296 | .el .Sh "\f(CW_is_bail_out\fP" | |
297 | .IX Subsection "_is_bail_out" | |
298 | .Vb 1 | |
299 | \& my $is_bail_out = $strap->_is_bail_out($line, \e$reason); | |
300 | .Ve | |
301 | .PP | |
302 | Checks if the line is a \*(L"Bail out!\*(R". Places the reason for bailing | |
303 | (if any) in \f(CW$reason\fR. | |
304 | .ie n .Sh """_reset_file_state""" | |
305 | .el .Sh "\f(CW_reset_file_state\fP" | |
306 | .IX Subsection "_reset_file_state" | |
307 | .Vb 1 | |
308 | \& $strap->_reset_file_state; | |
309 | .Ve | |
310 | .PP | |
311 | Resets things like \f(CW\*(C`$strap\->{max}\*(C'\fR , \f(CW\*(C`$strap\->{skip_all}\*(C'\fR, | |
312 | etc. so it's ready to parse the next file. | |
313 | .SH "Results" | |
314 | .IX Header "Results" | |
315 | The \f(CW%results\fR returned from \f(CW\*(C`analyze()\*(C'\fR contain the following | |
316 | information: | |
317 | .PP | |
318 | .Vb 2 | |
319 | \& passing true if the whole test is considered a pass | |
320 | \& (or skipped), false if its a failure | |
321 | .Ve | |
322 | .PP | |
323 | .Vb 2 | |
324 | \& exit the exit code of the test run, if from a file | |
325 | \& wait the wait code of the test run, if from a file | |
326 | .Ve | |
327 | .PP | |
328 | .Vb 4 | |
329 | \& max total tests which should have been run | |
330 | \& seen total tests actually seen | |
331 | \& skip_all if the whole test was skipped, this will | |
332 | \& contain the reason. | |
333 | .Ve | |
334 | .PP | |
335 | .Vb 2 | |
336 | \& ok number of tests which passed | |
337 | \& (including todo and skips) | |
338 | .Ve | |
339 | .PP | |
340 | .Vb 3 | |
341 | \& todo number of todo tests seen | |
342 | \& bonus number of todo tests which | |
343 | \& unexpectedly passed | |
344 | .Ve | |
345 | .PP | |
346 | .Vb 1 | |
347 | \& skip number of tests skipped | |
348 | .Ve | |
349 | .PP | |
350 | So a successful test should have max == seen == ok. | |
351 | .PP | |
352 | There is one final item, the details. | |
353 | .PP | |
354 | .Vb 2 | |
355 | \& details an array ref reporting the result of | |
356 | \& each test looks like this: | |
357 | .Ve | |
358 | .PP | |
359 | .Vb 8 | |
360 | \& $results{details}[$test_num - 1] = | |
361 | \& { ok => is the test considered ok? | |
362 | \& actual_ok => did it literally say 'ok'? | |
363 | \& name => name of the test (if any) | |
364 | \& diagnostics => test diagnostics (if any) | |
365 | \& type => 'skip' or 'todo' (if any) | |
366 | \& reason => reason for the above (if any) | |
367 | \& }; | |
368 | .Ve | |
369 | .PP | |
370 | Element 0 of the details is test #1. I tried it with element 1 being | |
371 | #1 and 0 being empty, this is less awkward. | |
372 | .SH "EXAMPLES" | |
373 | .IX Header "EXAMPLES" | |
374 | See \fIexamples/mini_harness.plx\fR for an example of use. | |
375 | .SH "AUTHOR" | |
376 | .IX Header "AUTHOR" | |
377 | Michael G Schwern \f(CW\*(C`<schwern@pobox.com>\*(C'\fR, currently maintained by | |
378 | Andy Lester \f(CW\*(C`<andy@petdance.com>\*(C'\fR. | |
379 | .SH "SEE ALSO" | |
380 | .IX Header "SEE ALSO" | |
381 | Test::Harness |