add support for fork.MonthNum (#117)

Co-authored-by: Geoffrey GREBERT <ggrebert@sii.fr>

README.md

@@ -313,6 +313,8 @@ Quick overview of the path syntax available to extract values form the request:
  - fake.Language
  - fake.Model
  - fake.Month
+ - fake.MonthShort
+ - fake.MonthNum
  - fake.Year
  - fake.Paragraph
  - fake.Paragraphs

pkg/vars/fake/generator.go

@@ -31,6 +31,7 @@ type Generator interface {
 	Month() string
 	Year() string
 	MonthShort() string
+	MonthNum() string
 	Paragraph() string
 	Paragraphs() string
 	ParagraphsN(n int) string

pkg/vars/fake/provider.go

@@ -242,6 +242,11 @@ func (p Provider) MonthShort() string {
 	return fake.MonthShort()
 }
 
+//MonthNum returns a random month (Numeric Version)
+func (p Provider) MonthNum() string {
+	return strconv.Itoa(fake.MonthNum())
+}
+
 //WeekDay returns a random day of week
 func (p Provider) WeekDay() string {
 	return fake.WeekDay()

pkg/vars/fake/provider_test.go

@@ -98,3 +98,20 @@ func TestHex(t *testing.T) {
 		}
 	}
 }
+
+func TestMonthNum(t *testing.T) {
+	faker := Provider{}
+
+	for i := 1; i < 10000; i++ {
+		result := faker.MonthNum()
+		month, err := strconv.ParseInt(result, 10, 64)
+
+		if err != nil {
+			t.Error("The result should be a valid month number", result)
+		}
+
+		if month < 0 || month > 12 {
+			t.Error("The random number should be between 0 and 12", month)
+		}
+	}
+}