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28 
29 #include "cli/cmd_report_html.hpp"
30 
31 #include <algorithm>
32 #include <cerrno>
33 #include <cstdlib>
34 #include <set>
35 #include <stdexcept>
36 
37 #include "cli/common.ipp"
38 #include "drivers/scan_results.hpp"
39 #include "engine/filters.hpp"
40 #include "model/context.hpp"
41 #include "model/metadata.hpp"
42 #include "model/test_case.hpp"
43 #include "model/test_program.hpp"
44 #include "model/test_result.hpp"
45 #include "store/layout.hpp"
46 #include "store/read_transaction.hpp"
47 #include "utils/cmdline/options.hpp"
48 #include "utils/cmdline/parser.ipp"
49 #include "utils/cmdline/ui.hpp"
50 #include "utils/datetime.hpp"
51 #include "utils/env.hpp"
52 #include "utils/format/macros.hpp"
53 #include "utils/fs/exceptions.hpp"
54 #include "utils/fs/operations.hpp"
55 #include "utils/fs/path.hpp"
56 #include "utils/optional.ipp"
57 #include "utils/text/templates.hpp"
58 
59 namespace cmdline = utils::cmdline;
60 namespace config = utils::config;
61 namespace datetime = utils::datetime;
62 namespace fs = utils::fs;
63 namespace layout = store::layout;
64 namespace text = utils::text;
65 
66 using utils::optional;
67 
68 
69 namespace {
70 
71 
72 /// Creates the report's top directory and fails if it exists.
73 ///
74 /// \param directory The directory to create.
75 /// \param force Whether to wipe an existing directory or not.
76 ///
77 /// \throw std::runtime_error If the directory already exists; this is a user
78 ///     error that the user must correct.
79 /// \throw fs::error If the directory creation fails for any other reason.
80 static void
81 create_top_directory(const fs::path& directory, const bool force)
82 {
83     if (force) {
84         if (fs::exists(directory))
85             fs::rm_r(directory);
86     }
87 
88     try {
89         fs::mkdir(directory, 0755);
90     } catch (const fs::system_error& e) {
91         if (e.original_errno() == EEXIST)
92             throw std::runtime_error(F("Output directory '%s' already exists; "
93                                        "maybe use --force?") %
94                                      directory);
95         else
96             throw e;
97     }
98 }
99 
100 
101 /// Generates a flat unique filename for a given test case.
102 ///
103 /// \param test_program The test program for which to genereate the name.
104 /// \param test_case_name The test case name.
105 ///
106 /// \return A filename unique within a directory with a trailing HTML extension.
107 static std::string
108 test_case_filename(const model::test_program& test_program,
109                    const std::string& test_case_name)
110 {
111     static const char* special_characters = "/:";
112 
113     std::string name = cli::format_test_case_id(test_program, test_case_name);
114     std::string::size_type pos = name.find_first_of(special_characters);
115     while (pos != std::string::npos) {
116         name.replace(pos, 1, "_");
117         pos = name.find_first_of(special_characters, pos + 1);
118     }
119     return name + ".html";
120 }
121 
122 
123 /// Adds a string to string map to the templates.
124 ///
125 /// \param [in,out] templates The templates to add the map to.
126 /// \param props The map to add to the templates.
127 /// \param key_vector Name of the template vector that holds the keys.
128 /// \param value_vector Name of the template vector that holds the values.
129 static void
130 add_map(text::templates_def& templates, const config::properties_map& props,
131         const std::string& key_vector, const std::string& value_vector)
132 {
133     templates.add_vector(key_vector);
134     templates.add_vector(value_vector);
135 
136     for (config::properties_map::const_iterator iter = props.begin();
137          iter != props.end(); ++iter) {
138         templates.add_to_vector(key_vector, (*iter).first);
139         templates.add_to_vector(value_vector, (*iter).second);
140     }
141 }
142 
143 
144 /// Generates an HTML report.
145 class html_hooks : public drivers::scan_results::base_hooks {
146     /// User interface object where to report progress.
147     cmdline::ui* _ui;
148 
149     /// The top directory in which to create the HTML files.
150     fs::path _directory;
151 
152     /// Collection of result types to include in the report.
153     const cli::result_types& _results_filters;
154 
155     /// The start time of the first test.
156     optional< utils::datetime::timestamp > _start_time;
157 
158     /// The end time of the last test.
159     optional< utils::datetime::timestamp > _end_time;
160 
161     /// The total run time of the tests.  Note that we cannot subtract _end_time
162     /// from _start_time to compute this due to parallel execution.
163     utils::datetime::delta _runtime;
164 
165     /// Templates accumulator to generate the index.html file.
166     text::templates_def _summary_templates;
167 
168     /// Mapping of result types to the amount of tests with such result.
169     std::map< model::test_result_type, std::size_t > _types_count;
170 
171     /// Generates a common set of templates for all of our files.
172     ///
173     /// \return A new templates object with common parameters.
174     static text::templates_def
175     common_templates(void)
176     {
177         text::templates_def templates;
178         templates.add_variable("css", "report.css");
179         return templates;
180     }
181 
182     /// Adds a test case result to the summary.
183     ///
184     /// \param test_program The test program with the test case to be added.
185     /// \param test_case_name Name of the test case.
186     /// \param result The result of the test case.
187     /// \param has_detail If true, the result of the test case has not been
188     ///     filtered and therefore there exists a separate file for the test
189     ///     with all of its information.
190     void
191     add_to_summary(const model::test_program& test_program,
192                    const std::string& test_case_name,
193                    const model::test_result& result,
194                    const bool has_detail)
195     {
196         ++_types_count[result.type()];
197 
198         if (!has_detail)
199             return;
200 
201         std::string test_cases_vector;
202         std::string test_cases_file_vector;
203         switch (result.type()) {
204         case model::test_result_broken:
205             test_cases_vector = "broken_test_cases";
206             test_cases_file_vector = "broken_test_cases_file";
207             break;
208 
209         case model::test_result_expected_failure:
210             test_cases_vector = "xfail_test_cases";
211             test_cases_file_vector = "xfail_test_cases_file";
212             break;
213 
214         case model::test_result_failed:
215             test_cases_vector = "failed_test_cases";
216             test_cases_file_vector = "failed_test_cases_file";
217             break;
218 
219         case model::test_result_passed:
220             test_cases_vector = "passed_test_cases";
221             test_cases_file_vector = "passed_test_cases_file";
222             break;
223 
224         case model::test_result_skipped:
225             test_cases_vector = "skipped_test_cases";
226             test_cases_file_vector = "skipped_test_cases_file";
227             break;
228         }
229         INV(!test_cases_vector.empty());
230         INV(!test_cases_file_vector.empty());
231 
232         _summary_templates.add_to_vector(
233             test_cases_vector,
234             cli::format_test_case_id(test_program, test_case_name));
235         _summary_templates.add_to_vector(
236             test_cases_file_vector,
237             test_case_filename(test_program, test_case_name));
238     }
239 
240     /// Instantiate a template to generate an HTML file in the output directory.
241     ///
242     /// \param templates The templates to use.
243     /// \param template_name The name of the template.  This is automatically
244     ///     searched for in the installed directory, so do not provide a path.
245     /// \param output_name The name of the output file.  This is a basename to
246     ///     be created within the output directory.
247     ///
248     /// \throw text::error If there is any problem applying the templates.
249     void
250     generate(const text::templates_def& templates,
251              const std::string& template_name,
252              const std::string& output_name) const
253     {
254         const fs::path miscdir(utils::getenv_with_default(
255              "KYUA_MISCDIR", KYUA_MISCDIR));
256         const fs::path template_file = miscdir / template_name;
257         const fs::path output_path(_directory / output_name);
258 
259         _ui->out(F("Generating %s") % output_path);
260         text::instantiate(templates, template_file, output_path);
261     }
262 
263     /// Gets the number of tests with a given result type.
264     ///
265     /// \param type The type to be queried.
266     ///
267     /// \return The number of tests of the given type, or 0 if none have yet
268     /// been registered by add_to_summary().
269     std::size_t
270     get_count(const model::test_result_type type) const
271     {
272         const std::map< model::test_result_type, std::size_t >::const_iterator
273             iter = _types_count.find(type);
274         if (iter == _types_count.end())
275             return 0;
276         else
277             return (*iter).second;
278     }
279 
280 public:
281     /// Constructor for the hooks.
282     ///
283     /// \param ui_ User interface object where to report progress.
284     /// \param directory_ The directory in which to create the HTML files.
285     /// \param results_filters_ The result types to include in the report.
286     ///     Cannot be empty.
287     html_hooks(cmdline::ui* ui_, const fs::path& directory_,
288                const cli::result_types& results_filters_) :
289         _ui(ui_),
290         _directory(directory_),
291         _results_filters(results_filters_),
292         _summary_templates(common_templates())
293     {
294         PRE(!results_filters_.empty());
295 
296         // Keep in sync with add_to_summary().
297         _summary_templates.add_vector("broken_test_cases");
298         _summary_templates.add_vector("broken_test_cases_file");
299         _summary_templates.add_vector("xfail_test_cases");
300         _summary_templates.add_vector("xfail_test_cases_file");
301         _summary_templates.add_vector("failed_test_cases");
302         _summary_templates.add_vector("failed_test_cases_file");
303         _summary_templates.add_vector("passed_test_cases");
304         _summary_templates.add_vector("passed_test_cases_file");
305         _summary_templates.add_vector("skipped_test_cases");
306         _summary_templates.add_vector("skipped_test_cases_file");
307     }
308 
309     /// Callback executed when the context is loaded.
310     ///
311     /// \param context The context loaded from the database.
312     void
313     got_context(const model::context& context)
314     {
315         text::templates_def templates = common_templates();
316         templates.add_variable("cwd", context.cwd().str());
317         add_map(templates, context.env(), "env_var", "env_var_value");
318         generate(templates, "context.html", "context.html");
319     }
320 
321     /// Callback executed when a test results is found.
322     ///
323     /// \param iter Container for the test result's data.
324     void
325     got_result(store::results_iterator& iter)
326     {
327         const model::test_program_ptr test_program = iter.test_program();
328         const std::string& test_case_name = iter.test_case_name();
329         const model::test_result result = iter.result();
330 
331         if (std::find(_results_filters.begin(), _results_filters.end(),
332                       result.type()) == _results_filters.end()) {
333             add_to_summary(*test_program, test_case_name, result, false);
334             return;
335         }
336 
337         add_to_summary(*test_program, test_case_name, result, true);
338 
339         if (!_start_time || _start_time.get() > iter.start_time())
340             _start_time = iter.start_time();
341         if (!_end_time || _end_time.get() < iter.end_time())
342             _end_time = iter.end_time();
343 
344         const datetime::delta duration = iter.end_time() - iter.start_time();
345 
346         _runtime += duration;
347 
348         text::templates_def templates = common_templates();
349         templates.add_variable("test_case",
350                                cli::format_test_case_id(*test_program,
351                                                         test_case_name));
352         templates.add_variable("test_program",
353                                test_program->absolute_path().str());
354         templates.add_variable("result", cli::format_result(result));
355         templates.add_variable("start_time",
356                                iter.start_time().to_iso8601_in_utc());
357         templates.add_variable("end_time",
358                                iter.end_time().to_iso8601_in_utc());
359         templates.add_variable("duration", cli::format_delta(duration));
360 
361         const model::test_case& test_case = test_program->find(test_case_name);
362         add_map(templates, test_case.get_metadata().to_properties(),
363                 "metadata_var", "metadata_value");
364 
365         {
366             const std::string stdout_text = iter.stdout_contents();
367             if (!stdout_text.empty())
368                 templates.add_variable("stdout", stdout_text);
369         }
370         {
371             const std::string stderr_text = iter.stderr_contents();
372             if (!stderr_text.empty())
373                 templates.add_variable("stderr", stderr_text);
374         }
375 
376         generate(templates, "test_result.html",
377                  test_case_filename(*test_program, test_case_name));
378     }
379 
380     /// Writes the index.html file in the output directory.
381     ///
382     /// This should only be called once all the processing has been done;
383     /// i.e. when the scan_results driver returns.
384     void
385     write_summary(void)
386     {
387         const std::size_t n_passed = get_count(model::test_result_passed);
388         const std::size_t n_failed = get_count(model::test_result_failed);
389         const std::size_t n_skipped = get_count(model::test_result_skipped);
390         const std::size_t n_xfail = get_count(
391             model::test_result_expected_failure);
392         const std::size_t n_broken = get_count(model::test_result_broken);
393 
394         const std::size_t n_bad = n_broken + n_failed;
395 
396         if (_start_time) {
397             INV(_end_time);
398             _summary_templates.add_variable(
399                 "start_time", _start_time.get().to_iso8601_in_utc());
400             _summary_templates.add_variable(
401                 "end_time", _end_time.get().to_iso8601_in_utc());
402         } else {
403             _summary_templates.add_variable("start_time", "No tests run");
404             _summary_templates.add_variable("end_time", "No tests run");
405         }
406         _summary_templates.add_variable("duration",
407                                         cli::format_delta(_runtime));
408         _summary_templates.add_variable("passed_tests_count",
409                                         F("%s") % n_passed);
410         _summary_templates.add_variable("failed_tests_count",
411                                         F("%s") % n_failed);
412         _summary_templates.add_variable("skipped_tests_count",
413                                         F("%s") % n_skipped);
414         _summary_templates.add_variable("xfail_tests_count",
415                                         F("%s") % n_xfail);
416         _summary_templates.add_variable("broken_tests_count",
417                                         F("%s") % n_broken);
418         _summary_templates.add_variable("bad_tests_count", F("%s") % n_bad);
419 
420         generate(text::templates_def(), "report.css", "report.css");
421         generate(_summary_templates, "index.html", "index.html");
422     }
423 };
424 
425 
426 }  // anonymous namespace
427 
428 
429 /// Default constructor for cmd_report_html.
430 cli::cmd_report_html::cmd_report_html(void) : cli_command(
431     "report-html", "", 0, 0,
432     "Generates an HTML report with the result of a test suite run")
433 {
434     add_option(results_file_open_option);
435     add_option(cmdline::bool_option(
436         "force", "Wipe the output directory before generating the new report; "
437         "use care"));
438     add_option(cmdline::path_option(
439         "output", "The directory in which to store the HTML files",
440         "path", "html"));
441     add_option(cmdline::list_option(
442         "results-filter", "Comma-separated list of result types to include in "
443         "the report", "types", "skipped,xfail,broken,failed"));
444 }
445 
446 
447 /// Entry point for the "report-html" subcommand.
448 ///
449 /// \param ui Object to interact with the I/O of the program.
450 /// \param cmdline Representation of the command line to the subcommand.
451 ///
452 /// \return 0 if everything is OK, 1 if the statement is invalid or if there is
453 /// any other problem.
454 int
455 cli::cmd_report_html::run(cmdline::ui* ui,
456                           const cmdline::parsed_cmdline& cmdline,
457                           const config::tree& /* user_config */)
458 {
459     const result_types types = get_result_types(cmdline);
460 
461     const fs::path results_file = layout::find_results(
462         results_file_open(cmdline));
463 
464     const fs::path directory =
465         cmdline.get_option< cmdline::path_option >("output");
466     create_top_directory(directory, cmdline.has_option("force"));
467     html_hooks hooks(ui, directory, types);
468     drivers::scan_results::drive(results_file,
469                                  std::set< engine::test_filter >(),
470                                  hooks);
471     hooks.write_summary();
472 
473     return EXIT_SUCCESS;
474 }
475