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test: start migrating dbauthz tests to mocked db #19257
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| package testutil | ||
|
|
||
| import ( | ||
| "reflect" | ||
| "testing" | ||
|
|
||
| "github.com/brianvoe/gofakeit/v7" | ||
| "github.com/stretchr/testify/require" | ||
| ) | ||
|
|
||
| // Fake will populate any zero fields in the provided struct with fake data. | ||
| // Non-zero fields will remain unchanged. | ||
| // Usage: | ||
| // | ||
| // key := Fake(t, faker, database.APIKey{ | ||
| // TokenName: "keep-my-name", | ||
| // }) | ||
| func Fake[T any](t *testing.T, faker *gofakeit.Faker, seed T) T { | ||
| t.Helper() | ||
|
|
||
| var tmp T | ||
| err := faker.Struct(&tmp) | ||
| require.NoError(t, err, "failed to generate fake data for type %T", tmp) | ||
|
|
||
| mergeZero(&seed, tmp) | ||
| return seed | ||
| } | ||
|
|
||
| // mergeZero merges the fields of src into dst, but only if the field in dst is | ||
| // currently the zero value. | ||
| // Make sure `dst` is a pointer to a struct, otherwise the fields are not assignable. | ||
| func mergeZero(dst any, src any) { | ||
| srcv := reflect.ValueOf(src) | ||
| if srcv.Kind() == reflect.Ptr { | ||
| srcv = srcv.Elem() | ||
| } | ||
| remain := [][2]reflect.Value{ | ||
| {reflect.ValueOf(dst).Elem(), srcv}, | ||
| } | ||
|
|
||
| // Traverse the struct fields and set them only if they are currently zero. | ||
| // This is a breadth-first traversal of the struct fields. Struct definitions | ||
| // Should not be that deep, so we should not hit any stack overflow issues. | ||
| for { | ||
| if len(remain) == 0 { | ||
| return | ||
| } | ||
| dv, sv := remain[0][0], remain[0][1] | ||
| remain = remain[1:] // | ||
| for i := 0; i < dv.NumField(); i++ { | ||
| df := dv.Field(i) | ||
| sf := sv.Field(i) | ||
| if !df.CanSet() { | ||
| continue | ||
| } | ||
| if df.IsZero() { // only write if currently zero | ||
| df.Set(sf) | ||
| continue | ||
| } | ||
|
|
||
| if dv.Field(i).Kind() == reflect.Struct { | ||
| // If the field is a struct, we need to traverse it as well. | ||
| remain = append(remain, [2]reflect.Value{df, sf}) | ||
| } | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| package testutil_test | ||
|
|
||
| import ( | ||
| "testing" | ||
|
|
||
| "github.com/brianvoe/gofakeit/v7" | ||
| "github.com/google/uuid" | ||
| "github.com/stretchr/testify/require" | ||
|
|
||
| "github.com/coder/coder/v2/coderd/database" | ||
| "github.com/coder/coder/v2/testutil" | ||
| ) | ||
|
|
||
| type simpleStruct struct { | ||
| ID uuid.UUID | ||
| Name string | ||
| Description string | ||
| Age int `fake:"{number:18,60}"` | ||
| } | ||
|
|
||
| type nestedStruct struct { | ||
| Person simpleStruct | ||
| Address string | ||
| } | ||
|
|
||
| func TestFake(t *testing.T) { | ||
| t.Parallel() | ||
|
|
||
| t.Run("Simple", func(t *testing.T) { | ||
| t.Parallel() | ||
|
|
||
| faker := gofakeit.New(0) | ||
| person := testutil.Fake(t, faker, simpleStruct{ | ||
| Name: "alice", | ||
| }) | ||
| require.Equal(t, "alice", person.Name) | ||
| require.NotEqual(t, uuid.Nil, person.ID) | ||
| require.NotEmpty(t, person.Description) | ||
| require.Greater(t, person.Age, 17, "Age should be greater than 17") | ||
| require.Less(t, person.Age, 61, "Age should be less than 61") | ||
| }) | ||
|
|
||
| t.Run("Nested", func(t *testing.T) { | ||
| t.Parallel() | ||
|
|
||
| faker := gofakeit.New(0) | ||
| person := testutil.Fake(t, faker, nestedStruct{ | ||
| Person: simpleStruct{ | ||
| Name: "alice", | ||
| }, | ||
| }) | ||
| require.Equal(t, "alice", person.Person.Name) | ||
| require.NotEqual(t, uuid.Nil, person.Person.ID) | ||
| require.NotEmpty(t, person.Person.Description) | ||
| require.Greater(t, person.Person.Age, 17, "Age should be greater than 17") | ||
| require.NotEmpty(t, person.Address) | ||
| }) | ||
|
|
||
| t.Run("DatabaseType", func(t *testing.T) { | ||
| t.Parallel() | ||
|
|
||
| faker := gofakeit.New(0) | ||
| id := uuid.New() | ||
| key := testutil.Fake(t, faker, database.APIKey{ | ||
| UserID: id, | ||
| TokenName: "keep-my-name", | ||
| }) | ||
| require.Equal(t, id, key.UserID) | ||
| require.NotEmpty(t, key.TokenName) | ||
| }) | ||
| } |
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