fleet/server/contexts/ctxerr/statistics_test.go
Roberto Dip b2d07e56b5
report error analytics (#6341)
Related to #5898, this reports an anonymized summary of errors stored in Redis into the analytics payload.

For each error stored, this includes:

- A `count` attribute with the number of occurrences of the error
- A `loc` attribute with the 3 topmost lines in the stack trace. Note that stack traces only contain package name + line number (example: github.com/fleetdm/fleet/server.go:12

This also includes a minor refactor around error types.
2022-06-28 16:31:14 -03:00

52 lines
1.5 KiB
Go

package ctxerr
import (
"context"
"encoding/json"
"testing"
"github.com/stretchr/testify/require"
)
func TestAggregate(t *testing.T) {
t.Run("returns an error if can't find a handler in the context", func(t *testing.T) {
_, err := Aggregate(context.Background())
require.Error(t, err)
})
t.Run("returns an error if it can't decode one of the errors stored", func(t *testing.T) {
eh := MockHandler{}
eh.RetrieveImpl = func(flush bool) ([]*StoredError, error) {
return []*StoredError{{Chain: []byte("invalid")}}, nil
}
ctx := NewContext(context.Background(), eh)
_, err := Aggregate(ctx)
require.Error(t, err)
})
t.Run("returns an aggregation of the errors stored", func(t *testing.T) {
eh := MockHandler{}
eh.RetrieveImpl = func(flush bool) ([]*StoredError, error) {
return []*StoredError{
{Count: 10, Chain: []byte(`[{"stack": ["a", "b", "c", "d"]}]`)},
{Count: 20, Chain: []byte(`[{"stack": ["x", "y"]}]`)},
{Count: 30, Chain: []byte(`[{"stack": ["a", "b", "c", "d"]}, {"stack": ["x", "y"]}]`)},
{Count: 40, Chain: []byte(`[{"stack": ["a"]}, {"stack": ["x", "y"]}]`)},
}, nil
}
ctx := NewContext(context.Background(), eh)
rawAgg, err := Aggregate(ctx)
require.NoError(t, err)
var aggs []errorAgg
err = json.Unmarshal(rawAgg, &aggs)
require.NoError(t, err)
require.Equal(t, []errorAgg{
{Count: 10, Loc: []string{"a", "b", "c"}},
{Count: 20, Loc: []string{"x", "y"}},
{Count: 30, Loc: []string{"a", "b", "c"}},
{Count: 40, Loc: []string{"a", "x", "y"}},
}, aggs)
})
}