// Ensure a cursor iterator does not go past the end time.
func TestFloatCursorIterator_EndTime(t *testing.T) {
cur := NewCursor([]CursorItem{
{Key: 0, Value: float64(100)},
{Key: 3, Value: float64(200)},
{Key: 4, Value: float64(300)},
}, true)
itr := tsdb.NewFloatCursorIterator("x", nil, cur, influxql.IteratorOptions{
Expr: &influxql.VarRef{Val: "value"},
Ascending: true,
EndTime: 3,
})
defer itr.Close()
// Verify that only two points are emitted.
if p := itr.Next(); p == nil || p.Time != 0 {
t.Fatalf("unexpected point(0): %s", spew.Sdump(p))
}
if p := itr.Next(); p == nil || p.Time != 3 {
t.Fatalf("unexpected point(1): %s", spew.Sdump(p))
}
if p := itr.Next(); p != nil {
t.Fatalf("expected eof, got: %s", spew.Sdump(p))
}
}
// Ensure a cursor with a single ref value can be converted into an iterator.
func TestFloatCursorIterator_SingleValue(t *testing.T) {
cur := NewCursor([]CursorItem{
{Key: 0, Value: float64(100)},
{Key: 3, Value: float64(200)},
}, true)
opt := influxql.IteratorOptions{
Expr: &influxql.VarRef{Val: "value"},
Ascending: true,
StartTime: influxql.MinTime,
EndTime: influxql.MaxTime,
}
itr := tsdb.NewFloatCursorIterator("series0", map[string]string{"host": "serverA"}, cur, opt)
defer itr.Close()
if p := itr.Next(); !deep.Equal(p, &influxql.FloatPoint{
Name: "series0",
Time: 0,
Value: float64(100),
}) {
t.Fatalf("unexpected point(0): %s", spew.Sdump(p))
}
if p := itr.Next(); !deep.Equal(p, &influxql.FloatPoint{
Name: "series0",
Time: 3,
Value: float64(200),
}) {
t.Fatalf("unexpected point(1): %s", spew.Sdump(p))
}
if p := itr.Next(); p != nil {
t.Fatalf("expected eof, got: %s", spew.Sdump(p))
}
}
// Ensure a cursor with multiple values can be converted into an iterator.
func TestFloatCursorIterator_Aux_MultipleValues(t *testing.T) {
cur := NewCursor([]CursorItem{
{Key: 0, Value: map[string]interface{}{"val1": float64(100), "val2": "foo"}},
{Key: 3, Value: map[string]interface{}{"val1": float64(200), "val2": "bar"}},
}, true)
opt := influxql.IteratorOptions{
Aux: []string{"val1", "val2"},
Ascending: true,
StartTime: influxql.MinTime,
EndTime: influxql.MaxTime,
}
itr := tsdb.NewFloatCursorIterator("series0", map[string]string{"host": "serverA"}, cur, opt)
defer itr.Close()
if p := itr.Next(); !deep.Equal(p, &influxql.FloatPoint{
Name: "series0",
Time: 0,
Value: math.NaN(),
Aux: []interface{}{float64(100), "foo"},
}) {
t.Fatalf("unexpected point(0): %s", spew.Sdump(p))
}
if p := itr.Next(); !deep.Equal(p, &influxql.FloatPoint{
Name: "series0",
Time: 3,
Value: math.NaN(),
Aux: []interface{}{float64(200), "bar"},
}) {
t.Fatalf("unexpected point(1): %s", spew.Sdump(p))
}
if p := itr.Next(); p != nil {
t.Fatalf("expected eof, got: %s", spew.Sdump(p))
}
}