How to use GoModDownload method of performance_test Package

Best Ginkgo code snippet using performance_test.GoModDownload

performance_suite_test.go

Source:performance_suite_test.go

...121	}122	components := append([]string{f.TmpDir, pkg}, target...)123	return filepath.Join(components...)124}125/* GoModDownload runs go mod download for a given package */126func GoModDownload(fixture string) {127	cmd := exec.Command("go", "mod", "download")128	cmd.Dir = pfm.PathTo(fixture)129	sess, err := gexec.Start(cmd, GinkgoWriter, GinkgoWriter)130	Î©(err).ShouldNot(HaveOccurred())131	Eventually(sess).Should(gexec.Exit(0))132}133/* ScenarioSettings configures the test scenario */134type ScenarioSettings struct {135	Fixture         string136	NumSuites       int137	Recurse         bool138	ClearGoModCache bool139	ConcurrentCompilers       int140	ConcurrentRunners         int141	CompileFirstSuiteSerially bool142	GoModDownloadFirst        bool143	UseGoTestDirectly            bool144	ConcurrentGoTests            int145	GoTestCompileThenRunSerially bool146	GoTestRecurse                bool147}148func (s ScenarioSettings) Name() string {149	out := []string{s.Fixture}150	if s.UseGoTestDirectly {151		if s.GoTestCompileThenRunSerially {152			out = append(out, "go test -c; then run (serially)")153		} else if s.GoTestRecurse {154			out = append(out, "go test ./...")155		} else {156			out = append(out, "go test")157			if s.ConcurrentGoTests == 1 {158				out = append(out, "serially")159			} else {160				out = append(out, fmt.Sprintf("run concurrently [%d]", s.ConcurrentGoTests))161			}162		}163	} else {164		if s.ConcurrentCompilers == 1 {165			out = append(out, "compile serially")166		} else {167			out = append(out, fmt.Sprintf("compile concurrently [%d]", s.ConcurrentCompilers))168		}169		if s.ConcurrentRunners == 1 {170			out = append(out, "run serially")171		} else {172			out = append(out, fmt.Sprintf("run concurrently [%d]", s.ConcurrentRunners))173		}174		if s.CompileFirstSuiteSerially {175			out = append(out, "will compile first suite serially")176		}177		if s.GoModDownloadFirst {178			out = append(out, "will go mod download first")179		}180	}181	return strings.Join(out, " - ")182}183func SampleScenarios(cache gmeasure.ExperimentCache, numSamples int, cacheVersion int, runGoModDownload bool, scenarios ...ScenarioSettings) {184	// we randomize the sample set of scenarios to try to avoid any systematic effects that emerge185	// during the run (e.g. change in internet connection speed, change in computer performance)186	experiments := map[string]*gmeasure.Experiment{}187	runs := []ScenarioSettings{}188	for _, scenario := range scenarios {189		name := scenario.Name()190		if experiment := cache.Load(name, cacheVersion); experiment != nil {191			AddReportEntry(name, experiment, Offset(1), ReportEntryVisibilityFailureOrVerbose)192			continue193		}194		experiments[name] = gmeasure.NewExperiment(name)195		AddReportEntry(name, experiments[name], Offset(1), ReportEntryVisibilityFailureOrVerbose)196		for i := 0; i < numSamples; i++ {197			runs = append(runs, scenario)198		}199	}200	rand.New(rand.NewSource(GinkgoRandomSeed())).Shuffle(len(runs), func(i, j int) {201		runs[i], runs[j] = runs[j], runs[i]202	})203	if len(runs) > 0 && runGoModDownload {204		GoModDownload("performance")205	}206	for idx, run := range runs {207		fmt.Printf("%d - %s\n", idx, run.Name())208		RunScenario(experiments[run.Name()].NewStopwatch(), run, gmeasure.Annotation(fmt.Sprintf("%d", idx+1)))209	}210	for name, experiment := range experiments {211		cache.Save(name, cacheVersion, experiment)212	}213}214func AnalyzeCache(cache gmeasure.ExperimentCache) {215	headers, err := cache.List()216	Î©(err).ShouldNot(HaveOccurred())217	experiments := []*gmeasure.Experiment{}218	for _, header := range headers {219		experiments = append(experiments, cache.Load(header.Name, header.Version))220	}221	for _, measurement := range []string{"first-output", "total-runtime"} {222		stats := []gmeasure.Stats{}223		for _, experiment := range experiments {224			stats = append(stats, experiment.GetStats(measurement))225		}226		AddReportEntry(measurement, gmeasure.RankStats(gmeasure.LowerMedianIsBetter, stats...))227	}228}229func RunScenario(stopwatch *gmeasure.Stopwatch, settings ScenarioSettings, annotation gmeasure.Annotation) {230	if settings.ClearGoModCache {231		gmcm.Clear()232	}233	if settings.GoModDownloadFirst {234		GoModDownload(settings.Fixture)235		stopwatch.Record("mod-download", annotation)236	}237	if settings.UseGoTestDirectly {238		RunScenarioWithGoTest(stopwatch, settings, annotation)239	} else {240		RunScenarioWithGinkgoInternals(stopwatch, settings, annotation)241	}242}243/* CompileAndRun uses the Ginkgo CLIs internals to compile and run tests with different possible settings governing concurrency and ordering */244func RunScenarioWithGinkgoInternals(stopwatch *gmeasure.Stopwatch, settings ScenarioSettings, annotation gmeasure.Annotation) {245	cliConfig := types.NewDefaultCLIConfig()246	cliConfig.Recurse = settings.Recurse247	suiteConfig := types.NewDefaultSuiteConfig()248	reporterConfig := types.NewDefaultReporterConfig()...

GoModDownload

Using AI Code Generation

1import (2func main() {3    test := performance.NewPerformanceTest()4    test.GoModDownload()5    fmt.Printf("The output is: %s", test)6}7import (8func main() {9    test := performance.NewPerformanceTest()10    test.GoModDownload()11    fmt.Printf("The output is: %s", test)12}13import (14func main() {15    test := performance.NewPerformanceTest()16    test.GoModDownload()17    fmt.Printf("The output is: %s", test)18}19import (20func main() {21    test := performance.NewPerformanceTest()22    test.GoModDownload()23    fmt.Printf("The output is: %s", test)24}25import (

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