Created
May 4, 2023 03:25
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mocking PersonDB using mock package
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package main | |
import ( | |
"fmt" | |
"testing" | |
"github.com/stretchr/testify/assert" | |
"github.com/stretchr/testify/mock" | |
) | |
type mockTestDB struct { | |
mock.Mock | |
} | |
func (m *mockTestDB) Save(person *Person) error { | |
args := m.Called(person) | |
return args.Error(0) | |
} | |
func TestPersonServiceImpl_CreatePerson_NoError(t *testing.T) { | |
testDb := new(mockTestDB) | |
p := &Person{ | |
ID: 1, | |
Name: "John D", | |
} | |
testDb.On("Save", p).Return(nil) | |
personServiceImpl := new(PersonServiceImpl) | |
personServiceImpl.db = testDb | |
err := personServiceImpl.CreatePerson(p) | |
assert.NoError(t, err) | |
} | |
func TestPersonServiceImpl_CreatePerson_Error(t *testing.T) { | |
testDb := new(mockTestDB) | |
p := &Person{ | |
ID: 1, | |
Name: "John D", | |
} | |
testDb.On("Save", p).Return(fmt.Errorf("save operation failed")) | |
personServiceImpl := new(PersonServiceImpl) | |
personServiceImpl.db = testDb | |
err := personServiceImpl.CreatePerson(p) | |
assert.Error(t, err) | |
} |
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