prometheus-paperless-exporter/storagepath_test.go

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package main
import (
"context"
"errors"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/google/go-cmp/cmp/cmpopts"
"github.com/hansmi/paperhooks/pkg/client"
"github.com/hansmi/prometheus-paperless-exporter/internal/testutil"
)
type fakeStoragePathClient struct {
items []client.StoragePath
err error
}
func (c *fakeStoragePathClient) ListAllStoragePaths(ctx context.Context, opts *client.ListStoragePathsOptions, handler func(context.Context, client.StoragePath) error) error {
for _, i := range c.items {
if err := handler(ctx, i); err != nil {
return err
}
}
return c.err
}
func TestStoragePath(t *testing.T) {
errTest := errors.New("test error")
for _, tc := range []struct {
name string
cl fakeStoragePathClient
wantErr error
}{
{
name: "empty",
},
{
name: "listing fails",
cl: fakeStoragePathClient{
err: errTest,
},
wantErr: errTest,
},
{
name: "storagePaths",
cl: fakeStoragePathClient{
items: []client.StoragePath{
{ID: 70},
{ID: 20667},
{ID: 12805},
},
},
},
} {
t.Run(tc.name, func(t *testing.T) {
c := newStoragePathCollector(&tc.cl)
err := c.collect(context.Background(), testutil.DiscardMetrics(t))
if diff := cmp.Diff(tc.wantErr, err, cmpopts.EquateErrors()); diff != "" {
t.Errorf("Error diff (-want +got):\n%s", diff)
}
})
}
}
func TestStoragePathCollect(t *testing.T) {
cl := fakeStoragePathClient{}
c := newMultiCollector(newStoragePathCollector(&cl))
testutil.CollectAndCompare(t, c, ``)
cl.items = append(cl.items, []client.StoragePath{
{ID: 23547, Name: "personal", Slug: "personal"},
{ID: 704, Name: "work", DocumentCount: 13},
}...)
testutil.CollectAndCompare(t, c, `
# HELP paperless_storage_path_document_count Number of documents associated with a storage path.
# TYPE paperless_storage_path_document_count gauge
paperless_storage_path_document_count{id="23547"} 0
paperless_storage_path_document_count{id="704"} 13
# HELP paperless_storage_path_info Static information about a storage path.
# TYPE paperless_storage_path_info gauge
paperless_storage_path_info{id="23547",name="personal",slug="personal"} 1
paperless_storage_path_info{id="704",name="work",slug=""} 1
`)
}