AST: из Base скопирован/поправлен генератор функций:

с прямой последовательностью и добавлением шагов в тестовые файлы

internal/formatters/fmt_ast.go

@@ -1,12 +1,15 @@
 package formatters
 
 import (
+	"bytes"
 	"fmt"
 	"io"
 	"os"
 	"sort"
 	"strconv"
 	"strings"
+	"text/template"
+	"unicode"
 	"unicode/utf8"
 
 	messages "github.com/cucumber/messages/go/v21"
@@ -15,6 +18,7 @@ import (
 	"git.golang1.ru/softonik/godog/formatters"
 	"git.golang1.ru/softonik/godog/internal/models"
 	"git.golang1.ru/softonik/godog/internal/utils"
+	"git.golang1.ru/softonik/godog/pkg/formatters/ast"
 )
 
 func ASTRegister() {
@@ -348,6 +352,85 @@ func (f *AST) SummaryBottom() {
 	}
 }
 
+func (f *AST) Snippets() string {
+	undefinedStepResults := f.Storage.MustGetPickleStepResultsByStatus(undefined)
+	if len(undefinedStepResults) == 0 {
+		return ""
+	}
+
+	var index int
+	var snips []undefinedSnippet
+	// build snippets
+	for _, u := range undefinedStepResults {
+		pickleStep := f.Storage.MustGetPickleStep(u.PickleStepID)
+
+		steps := []string{pickleStep.Text}
+		arg := pickleStep.Argument
+		if u.Def != nil {
+			steps = u.Def.Undefined
+			arg = nil
+		}
+		for _, step := range steps {
+			expr := snippetExprCleanup.ReplaceAllString(step, "\\$1")
+			expr = snippetNumbers.ReplaceAllString(expr, "(\\d+)")
+			expr = snippetExprQuoted.ReplaceAllString(expr, "$1\"([^\"]*)\"$2")
+			expr = "^" + strings.TrimSpace(expr) + "$"
+
+			name := snippetNumbers.ReplaceAllString(step, " ")
+			name = snippetExprQuoted.ReplaceAllString(name, " ")
+			name = strings.TrimSpace(snippetMethodName.ReplaceAllString(name, ""))
+			var words []string
+			for i, w := range strings.Split(name, " ") {
+				switch {
+				case i != 0:
+					w = strings.Title(w)
+				case len(w) > 0:
+					r := []rune(w)
+					w = string(unicode.ToLower(r[0])) + string(r[1:])
+				}
+				words = append(words, w)
+			}
+			name = strings.Join(words, "")
+			if len(name) == 0 {
+				index++
+				name = fmt.Sprintf("StepDefinitioninition%d", index)
+			}
+
+			var found bool
+			for _, snip := range snips {
+				if snip.Expr == expr {
+					found = true
+					break
+				}
+			}
+			if !found {
+				s := undefinedSnippet{Method: name, Expr: expr, argument: arg}
+				snips = append(snips, s)
+				ast.ДобавитьШаг("`"+expr+"`", name, s.Args())
+			}
+		}
+	}
+
+	var buf bytes.Buffer
+	if err := AST_undefinedSnippetsTpl.Execute(&buf, snips); err != nil {
+		panic(err)
+	}
+	// there may be trailing spaces
+	return strings.Replace(buf.String(), " \n", "\n", -1)
+}
+
+var AST_undefinedSnippetsTpl = template.Must(template.New("snippets").Funcs(snippetHelperFuncs).Parse(`
+    func InitializeScenario(ctx *godog.ScenarioContext) {}
+    // ---
+
+
+{{ range . }}func {{ .Method }}({{ .Args }}) {
+}
+{{end}}{{ range . }}
+    ctx.Step({{ backticked .Expr }}, {{ .Method }}){{end}}
+
+`))
+
 func (f *AST) printOutlineExample(pickle *messages.Pickle, step *messages.PickleStep, backgroundSteps int) {
 	var errorMsg string
 	var clr = green