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Add test for Index postings querying

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This commit is contained in:
Fabian Reinartz 2017-03-09 09:39:30 +01:00
parent d3edfb5540
commit 5876a3303c
1 changed files with 45 additions and 0 deletions
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45
index_test.go
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@ -62,6 +62,51 @@ func TestIndexRW_Create_Open(t *testing.T) {
require.Error(t, err) require.Error(t, err)
} }
func TestIndexRW_Postings(t *testing.T) {
dir, err := ioutil.TempDir("", "test_index_postings")
require.NoError(t, err)
defer os.RemoveAll(dir)
iw, err := newIndexWriter(dir)
require.NoError(t, err, "create index writer")
series := []labels.Labels{
labels.FromStrings("a", "1", "b", "1"),
labels.FromStrings("a", "1", "b", "2"),
labels.FromStrings("a", "1", "b", "3"),
labels.FromStrings("a", "1", "b", "4"),
}
// Postings lists are only written if a series with the respective
// reference was added before.
require.NoError(t, iw.AddSeries(1, series[0]))
require.NoError(t, iw.AddSeries(3, series[2]))
require.NoError(t, iw.AddSeries(2, series[1]))
require.NoError(t, iw.AddSeries(4, series[3]))
err = iw.WritePostings("a", "1", newListPostings([]uint32{1, 2, 3, 4}))
require.NoError(t, err)
require.NoError(t, iw.Close())
ir, err := newIndexReader(dir)
require.NoError(t, err, "open index reader")
p, err := ir.Postings("a", "1")
require.NoError(t, err)
for i := 0; p.Next(); i++ {
l, c, err := ir.Series(p.At())
require.NoError(t, err)
require.Equal(t, 0, len(c))
require.Equal(t, l, series[i])
}
require.NoError(t, p.Err())
require.NoError(t, ir.Close())
}
// func TestPersistence_index_e2e(t *testing.T) { // func TestPersistence_index_e2e(t *testing.T) {
// dir, err := ioutil.TempDir("", "test_persistence_e2e") // dir, err := ioutil.TempDir("", "test_persistence_e2e")
// require.NoError(t, err) // require.NoError(t, err)