forked from fgrosse/goldi
/
type_registry_test.go
148 lines (123 loc) · 4.3 KB
/
type_registry_test.go
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package goldi_test
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"fmt"
"github.com/fgrosse/goldi"
)
var _ = Describe("TypeRegistry", func() {
var (
registry goldi.TypeRegistry
resolver *goldi.ParameterResolver
)
BeforeEach(func() {
registry = goldi.NewTypeRegistry()
container := goldi.NewContainer(registry, map[string]interface{}{})
resolver = goldi.NewParameterResolver(container)
})
Describe("RegisterType", func() {
Context("with factory function type", func() {
It("should store the type", func() {
typeID := "test_type"
factory := &MockTypeFactory{}
registry.RegisterType(typeID, factory.NewMockType)
factoryWrapper, typeIsRegistered := registry[typeID]
Expect(typeIsRegistered).To(BeTrue())
Expect(factoryWrapper).NotTo(BeNil())
factoryWrapper.Generate(resolver)
Expect(factory.HasBeenUsed).To(BeTrue())
})
It("should pass parameters to the new type", func() {
typeID := "test_type"
registry.RegisterType(typeID, NewMockTypeWithArgs, "foo", true)
Expect(registry).To(HaveKey(typeID))
result, err := registry["test_type"].Generate(resolver)
Expect(err).NotTo(HaveOccurred())
Expect(result.(*MockType).StringParameter).To(Equal("foo"))
Expect(result.(*MockType).BoolParameter).To(Equal(true))
})
})
Context("with struct type", func() {
It("should store the type", func() {
typeID := "test_type"
foo := Foo{}
registry.RegisterType(typeID, foo)
fooType, typeIsRegistered := registry[typeID]
Expect(typeIsRegistered).To(BeTrue())
Expect(fooType).NotTo(BeNil())
newFoo, err := fooType.Generate(resolver)
Expect(err).NotTo(HaveOccurred())
Expect(newFoo).To(BeAssignableToTypeOf(&foo))
})
It("should pass parameters to the new type", func() {
typeID := "test_type"
registry.RegisterType(typeID, Baz{}, "param1", "param2")
Expect(registry).To(HaveKey(typeID))
result, err := registry["test_type"].Generate(resolver)
Expect(err).NotTo(HaveOccurred())
newBaz := result.(*Baz)
Expect(newBaz.Parameter1).To(Equal("param1"))
Expect(newBaz.Parameter2).To(Equal("param2"))
})
})
Context("with pointer to struct type", func() {
It("should store the type", func() {
typeID := "test_type"
foo := &Foo{}
registry.RegisterType(typeID, foo)
fooType, typeIsRegistered := registry[typeID]
Expect(typeIsRegistered).To(BeTrue())
Expect(fooType).NotTo(BeNil())
newFoo, err := fooType.Generate(resolver)
Expect(err).NotTo(HaveOccurred())
Expect(newFoo).To(BeAssignableToTypeOf(foo))
})
It("should pass parameters to the new type", func() {
typeID := "test_type"
registry.RegisterType(typeID, &Baz{}, "param1", "param2")
Expect(registry).To(HaveKey(typeID))
result, err := registry["test_type"].Generate(resolver)
Expect(err).NotTo(HaveOccurred())
newBaz := result.(*Baz)
Expect(newBaz.Parameter1).To(Equal("param1"))
Expect(newBaz.Parameter2).To(Equal("param2"))
})
})
Context("with invalid factory type", func() {
It("should panic", func() {
Expect(func() { registry.RegisterType("invalid_type", 42) }).To(Panic())
})
})
})
Describe("InjectInstance", func() {
It("should store the type instance", func() {
typeID := "test_type"
fooInstance := NewFoo()
registry.InjectInstance(typeID, fooInstance)
factory, typeIsRegistered := registry[typeID]
Expect(typeIsRegistered).To(BeTrue())
Expect(factory).NotTo(BeNil())
generateResult, err := factory.Generate(resolver)
Expect(err).NotTo(HaveOccurred())
Expect(generateResult == fooInstance).To(BeTrue(),
fmt.Sprintf("generateResult (%p) should point to the same instance as fooInstance (%p)", generateResult, fooInstance),
)
})
})
Describe("RegisterAll", func() {
It("should register all factories", func() {
registry.RegisterAll(map[string]goldi.TypeFactory{
"test_type_1": goldi.NewType(NewFoo),
"test_type_2": goldi.NewType(NewBar),
"test_type_3": goldi.NewStructType(MockType{}),
})
var typeIsRegistered bool
_, typeIsRegistered = registry["test_type_1"]
Expect(typeIsRegistered).To(BeTrue())
_, typeIsRegistered = registry["test_type_2"]
Expect(typeIsRegistered).To(BeTrue())
_, typeIsRegistered = registry["test_type_3"]
Expect(typeIsRegistered).To(BeTrue())
})
})
})