feat(blood): Added faker for blood types

blood.go

@@ -0,0 +1,54 @@
+package faker
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/go-faker/faker/v4/pkg/options"
+)
+
+var bloodTypes = []string{"O", "A", "B", "AB"}
+var bloodRhFactors = []string{"+", "-"}
+
+func GetBlood(opts ...options.OptionFunc) Blooder {
+	opt := options.BuildOptions(opts)
+	db := &Blood{
+		fakerOption: *opt,
+	}
+	return db
+}
+
+type Blooder interface {
+	BloodType(v reflect.Value) (interface{}, error)
+	BloodRHFactor(v reflect.Value) (interface{}, error)
+	BloodGroup(v reflect.Value) (interface{}, error)
+}
+
+// Internet struct
+type Blood struct {
+	fakerOption options.Options
+}
+
+func (b Blood) bloodType() string {
+	return randomElementFromSliceString(bloodTypes)
+}
+
+func (b Blood) BloodType(v reflect.Value) (interface{}, error) {
+	return b.bloodType(), nil
+}
+
+func (b Blood) bloodRhFactor() string {
+	return randomElementFromSliceString(bloodRhFactors)
+}
+
+func (b Blood) BloodRHFactor(v reflect.Value) (interface{}, error) {
+	return b.bloodRhFactor(), nil
+}
+
+func (b Blood) bloodGroup() string {
+	return fmt.Sprintf("%s%s", b.bloodType(), b.bloodRhFactor())
+}
+
+func (b Blood) BloodGroup(v reflect.Value) (interface{}, error) {
+	return b.bloodGroup(), nil
+}

blood_test.go

@@ -0,0 +1,41 @@
+package faker
+
+import (
+	"reflect"
+	"strings"
+	"testing"
+
+	"github.com/go-faker/faker/v4/pkg/slice"
+)
+
+func TestBloodType(t *testing.T) {
+	bloodType, err := GetBlood().BloodType(reflect.Value{})
+	if err != nil {
+		t.Error("Expected  not error, got err", err)
+	}
+	if !slice.Contains(bloodTypes, bloodType.(string)) {
+		t.Error("Expected value from variable bloodType in function BloodType")
+	}
+}
+
+func TestBloodRhFactor(t *testing.T) {
+	bloodRhFactor, err := GetBlood().BloodRHFactor(reflect.Value{})
+	if err != nil {
+		t.Error("Expected  not error, got err", err)
+	}
+	if !slice.Contains(bloodRhFactors, bloodRhFactor.(string)) {
+		t.Error("Expected value from variable bloodRhFactor in function BloodType")
+	}
+}
+
+func TestBloodGroup(t *testing.T) {
+	bloodTypes = []string{"O"}
+	bloodRhFactors = []string{"+"}
+	bloodGroup, err := GetBlood().BloodGroup(reflect.Value{})
+	if err != nil {
+		t.Error("Expected  not error, got err", err)
+	}
+	if !strings.Contains(bloodGroup.(string), "O+") {
+		t.Error("Expected get url")
+	}
+}