runs tests with randomized scenario order, adds verbose mode

.travis.yml

@@ -3,7 +3,7 @@ go:
   - 1.5
   - 1.6
   - 1.7
-  - tip
+  - 1.8
 
 go_import_path: github.com/DATA-DOG/godog
 

Makefile

@@ -1,4 +1,4 @@
-.PHONY: test gherkin bump
+.PHONY: test gherkin bump cover
 
 VERS := $(shell grep 'const Version' -m 1 godog.go | awk -F\" '{print $$2}')
 
@@ -25,3 +25,8 @@ bump:
 	@sed -i.bak 's/$(VERS)/$(VERSION)/g' godog.go
 	@sed -i.bak 's/$(VERS)/$(VERSION)/g' examples/api/version.feature
 	@find . -name '*.bak' | xargs rm
+
+cover:
+	go test -race -coverprofile=coverage.txt
+	go tool cover -html=coverage.txt
+	rm coverage.txt

flags.go

@@ -35,7 +35,7 @@ var descRandomOption = "Randomly shuffle the scenario execution order.\n" +
 
 // FlagSet allows to manage flags by external suite runner
 func FlagSet(opt *Options) *flag.FlagSet {
-	descFormatOption := "How to format tests output. Available formats:\n"
+	descFormatOption := "How to format tests output. Built-in formats:\n"
 	// @TODO: sort by name
 	for name, desc := range AvailableFormatters() {
 		descFormatOption += s(4) + "- " + colors.Yellow(name) + ": " + desc + "\n"

suite_test.go

@@ -11,17 +11,29 @@ import (
 	"strconv"
 	"strings"
 	"testing"
+	"time"
 
 	"github.com/DATA-DOG/godog/gherkin"
 )
 
 func TestMain(m *testing.M) {
-	status := RunWithOptions("godogs", func(s *Suite) {
+	format := "progress" // non verbose mode
+	concurrency := 4
+
+	for _, arg := range os.Args[1:] {
+		if arg == "-test.v=true" { // go test transforms -v option - verbose mode
+			format = "pretty"
+			concurrency = 1
+			break
+		}
+	}
+	status := RunWithOptions("godog", func(s *Suite) {
 		SuiteContext(s)
 	}, Options{
-		Format:      "progress",
+		Format:      format, // pretty format for verbose mode, otherwise - progress
 		Paths:       []string{"features"},
-		Concurrency: 4,
+		Concurrency: concurrency,           // concurrency for verbose mode is 1
+		Randomize:   time.Now().UnixNano(), // randomize scenario execution order
 	})
 
 	if st := m.Run(); st > status {