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79eab65f94
* Add DeleteCollection methods to modes 1 and 4 * Add DeleteCollection implementations for modes 2 and 3
83 lines
2.8 KiB
Go
83 lines
2.8 KiB
Go
package rest
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import (
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"context"
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"testing"
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"github.com/zeebo/assert"
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"k8s.io/apimachinery/pkg/api/meta"
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metainternalversion "k8s.io/apimachinery/pkg/apis/meta/internalversion"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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)
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func TestMode2(t *testing.T) {
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var ls = (LegacyStorage)(nil)
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var s = (Storage)(nil)
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lsSpy := NewLegacyStorageSpyClient(ls)
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sSpy := NewStorageSpyClient(s)
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dw := NewDualWriterMode2(lsSpy, sSpy)
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// Create: it should use the Legacy Create implementation
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_, err := dw.Create(context.Background(), &dummyObject{}, func(context.Context, runtime.Object) error { return nil }, &metav1.CreateOptions{})
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assert.NoError(t, err)
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assert.Equal(t, 1, lsSpy.Counts("LegacyStorage.Create"))
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assert.Equal(t, 1, sSpy.Counts("Storage.Create"))
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// Get: it should read from Storage with LegacyStorage as a fallback
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// #TODO: Currently only testing the happy path. Refactor testing to more easily test other cases.
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_, err = dw.Get(context.Background(), kind, &metav1.GetOptions{})
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assert.NoError(t, err)
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assert.Equal(t, 0, lsSpy.Counts("LegacyStorage.Get"))
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assert.Equal(t, 1, sSpy.Counts("Storage.Get"))
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// List: it should use call both Legacy and Storage List methods
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l, err := dw.List(context.Background(), &metainternalversion.ListOptions{})
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assert.NoError(t, err)
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assert.Equal(t, 1, lsSpy.Counts("LegacyStorage.List"))
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assert.Equal(t, 1, sSpy.Counts("Storage.List"))
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resList, err := meta.ExtractList(l)
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assert.NoError(t, err)
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expectedItems := map[string]string{
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// Item 1: Storage should override Legacy
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"Item 1": "Storage field 1",
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// Item 2 shouldn't be included because it's not in Storage
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// Item 3 should because it's in Legacy
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"Item 3": "Legacy field 3",
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}
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assert.Equal(t, len(expectedItems), len(resList))
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for _, obj := range resList {
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v, ok := obj.(*dummyObject)
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assert.True(t, ok)
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accessor, err := meta.Accessor(v)
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assert.NoError(t, err)
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k, ok := expectedItems[accessor.GetName()]
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assert.True(t, ok)
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assert.Equal(t, k, v.Foo)
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}
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// Delete: it should use call both Legacy and Storage Delete methods
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var deleteValidation = func(ctx context.Context, obj runtime.Object) error { return nil }
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_, _, err = dw.Delete(context.Background(), kind, deleteValidation, &metav1.DeleteOptions{})
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assert.NoError(t, err)
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assert.Equal(t, 1, lsSpy.Counts("LegacyStorage.Delete"))
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assert.Equal(t, 1, sSpy.Counts("Storage.Delete"))
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// DeleteCollection: it should delete from both LegacyStorage and Storage
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_, err = dw.DeleteCollection(
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context.Background(),
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func(context.Context, runtime.Object) error { return nil },
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&metav1.DeleteOptions{},
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&metainternalversion.ListOptions{},
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)
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assert.NoError(t, err)
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assert.Equal(t, 1, lsSpy.Counts("LegacyStorage.DeleteCollection"))
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assert.Equal(t, 1, sSpy.Counts("Storage.DeleteCollection"))
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}
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