feat: add resource backend unit test (#1521)

* add resource unit test

* add more resource unit test

* change variable name

* add more test cases

* delete unnecessary line

* eslint

* add more asset

test/store/resource_test.go

+package teststore
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"github.com/usememos/memos/api"
+)
+
+func TestResourceStore(t *testing.T) {
+	ctx := context.Background()
+	store := NewTestingStore(ctx, t)
+	_, err := store.CreateResource(ctx, &api.ResourceCreate{
+		CreatorID:    101,
+		Filename:     "test.epub",
+		Blob:         []byte("test"),
+		InternalPath: "",
+		ExternalLink: "",
+		Type:         "application/epub+zip",
+		Size:         637607,
+		PublicID:     "a02748e2-9b56-46b2-8b1f-72d686d52f77",
+	})
+	require.NoError(t, err)
+
+	correctFilename := "test.epub"
+	incorrectFilename := "test.png"
+	res, err := store.FindResource(ctx, &api.ResourceFind{
+		Filename: &correctFilename,
+	})
+	require.NoError(t, err)
+	require.Equal(t, correctFilename, res.Filename)
+	require.Equal(t, 1, res.ID)
+	_, err = store.FindResource(ctx, &api.ResourceFind{
+		Filename: &incorrectFilename,
+	})
+	require.Error(t, err)
+
+	correctCreatorID := 101
+	incorrectCreatorID := 102
+	_, err = store.FindResource(ctx, &api.ResourceFind{
+		CreatorID: &correctCreatorID,
+	})
+	require.NoError(t, err)
+	_, err = store.FindResource(ctx, &api.ResourceFind{
+		CreatorID: &incorrectCreatorID,
+	})
+	require.Error(t, err)
+
+	err = store.DeleteResource(ctx, &api.ResourceDelete{
+		ID: 1,
+	})
+	require.NoError(t, err)
+	err = store.DeleteResource(ctx, &api.ResourceDelete{
+		ID: 2,
+	})
+	require.Error(t, err)
+}