Complete the creational functions for spec builder

pkg/service/spec.go

@@ -13,6 +13,9 @@ type Spec struct {
 
 type SpecBuilder interface {
 	WithScope(scope string) SpecBuilder
+	WithImageData(img []byte) SpecBuilder
+	WithParams(params map[string]string) SpecBuilder
+	WithFormats(formats []string) SpecBuilder
 	Build() Spec
 }
 
@@ -28,9 +31,27 @@ func (sb *specBuilder) WithScope(scope string) SpecBuilder {
 	return sb
 }
 
+func (sb *specBuilder) WithImageData(img []byte) SpecBuilder {
+	sb.imageData = img
+	return sb
+}
+
+func (sb *specBuilder) WithParams(params map[string]string) SpecBuilder {
+	sb.params = params
+	return sb
+}
+
+func (sb *specBuilder) WithFormats(formats []string) SpecBuilder {
+	sb.formats = formats
+	return sb
+}
+
 func (sb *specBuilder) Build() Spec {
 	return Spec{
-		Scope: sb.scope,
+		Scope:     sb.scope,
+		ImageData: sb.imageData,
+		Params:    sb.params,
+		Formats:   sb.formats,
 	}
 }
 

pkg/service/spec_test.go

@@ -8,6 +8,20 @@ import (
 
 func TestSpecBuilder_Build(t *testing.T) {
 	scope := "scope"
-	spec := NewSpecBuilder().WithScope(scope).Build()
+	img := []byte("imageData")
+	params := make(map[string]string)
+	params["foo"] = "bar"
+	formats := []string{"image/webp", "image/apng"}
+
+	spec := NewSpecBuilder().
+		WithScope(scope).
+		WithImageData(img).
+		WithParams(params).
+		WithFormats(formats).
+		Build()
+
 	assert.Equal(t, spec.Scope, scope)
+	assert.Equal(t, spec.ImageData, img)
+	assert.Equal(t, spec.Params, params)
+	assert.Equal(t, spec.Formats, formats)
 }