feat: Support generating service_account records

Add support for generating ServiceAccount type identity records.

identity.go

@@ -165,3 +165,24 @@ func NewUserIdentity(identityTemplate Identity, userTemplate User) (*identity.XR
 
 	return id, nil
 }
+
+// NewServiceAccountIdentity will build and return a fully populated
+// ServiceAccount identity record, using any values that are present in
+// identityTemplate and serviceAccountTemplate.
+func NewServiceAccountIdentity(identityTemplate Identity, serviceAccountTemplate ServiceAccount) (*identity.XRHID, error) {
+	id, err := NewIdentity(identityTemplate)
+	if err != nil {
+		return nil, err
+	}
+
+	serviceAccount, err := NewServiceAccount(serviceAccountTemplate)
+	if err != nil {
+		return nil, err
+	}
+
+	id.Identity.ServiceAccount = *serviceAccount
+
+	id.Identity.Type = "ServiceAccount"
+
+	return id, nil
+}

service_account.go

@@ -0,0 +1,33 @@
+package xrhidgen
+
+import (
+	"github.com/pioz/faker"
+	"github.com/redhatinsights/platform-go-middlewares/v2/identity"
+)
+
+// ServiceAccount holds values to be used as input when generating a service
+// account identity record.
+type ServiceAccount struct {
+	ClientID *string
+	Username *string
+}
+
+// NewServiceAccount will build and return a fully populated ServiceAccount data
+// structure, using any values that are present in template.
+func NewServiceAccount(template ServiceAccount) (*identity.ServiceAccount, error) {
+	var id identity.ServiceAccount
+
+	if template.ClientID != nil {
+		id.ClientId = *template.ClientID
+	} else {
+		id.ClientId = faker.String()
+	}
+
+	if template.Username != nil {
+		id.Username = *template.Username
+	} else {
+		id.Username = faker.Username()
+	}
+
+	return &id, nil
+}

service_account_test.go

@@ -0,0 +1,76 @@
+package xrhidgen
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp/cmpopts"
+	"github.com/pioz/faker"
+	"github.com/redhatinsights/platform-go-middlewares/v2/identity"
+	"go.openly.dev/pointy"
+)
+
+func TestNewServiceAccount(t *testing.T) {
+	type Tests struct {
+		description string
+		seed        int64
+		input       ServiceAccount
+		want        *identity.ServiceAccount
+		wantError   error
+	}
+	tests := []Tests{
+		{
+			description: "empty template",
+			seed:        100,
+			input:       ServiceAccount{},
+			want: &identity.ServiceAccount{
+				ClientId: "gimwu7Re",
+				Username: "boltrope",
+			},
+		},
+		{
+			description: "partial template",
+			seed:        100,
+			input: ServiceAccount{
+				ClientID: pointy.String("12345"),
+			},
+			want: &identity.ServiceAccount{
+				ClientId: "12345",
+				Username: "ammon",
+			},
+		},
+		{
+			description: "full template",
+			seed:        100,
+			input: ServiceAccount{
+				ClientID: pointy.String("12345"),
+				Username: pointy.String("jsmith"),
+			},
+			want: &identity.ServiceAccount{
+				ClientId: "12345",
+				Username: "jsmith",
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.description, func(t *testing.T) {
+			faker.SetSeed(test.seed)
+
+			got, err := NewServiceAccount(test.input)
+
+			if test.wantError != nil {
+				if !cmp.Equal(err, test.wantError, cmpopts.EquateErrors()) {
+					t.Errorf("%#v != %#v", err, test.wantError)
+				}
+			} else {
+				if err != nil {
+					t.Fatal(err)
+				}
+				if !cmp.Equal(got, test.want) {
+					t.Errorf("%v", cmp.Diff(got, test.want))
+				}
+			}
+		})
+	}
+}