func TestProcessAggregateDerivative_SingleRow(t *testing.T) {
results := tsdb.ProcessAggregateDerivative([][]interface{}{
[]interface{}{time.Unix(0, 0), 1.0},
}, false, 24*time.Hour)
if !reflect.DeepEqual(results, [][]interface{}{
[]interface{}{time.Unix(0, 0), 0.0},
}) {
t.Fatalf("unexpected results: %s", spew.Sdump(results))
}
}
func TestProcessAggregateDerivative_Negative_NonNegative(t *testing.T) {
results := tsdb.ProcessAggregateDerivative([][]interface{}{
[]interface{}{time.Unix(0, 0), 1.0},
[]interface{}{time.Unix(0, 0).Add(24 * time.Hour), 2.0},
[]interface{}{time.Unix(0, 0).Add(48 * time.Hour), 0.0},
[]interface{}{time.Unix(0, 0).Add(72 * time.Hour), 4.0},
}, true, 24*time.Hour)
if !reflect.DeepEqual(results, [][]interface{}{
[]interface{}{time.Unix(0, 0).Add(24 * time.Hour), 1.0},
[]interface{}{time.Unix(0, 0).Add(72 * time.Hour), 4.0},
}) {
t.Fatalf("unexpected results: %s", spew.Sdump(results))
}
}
func TestProcessAggregateDerivative_String(t *testing.T) {
results := tsdb.ProcessAggregateDerivative([][]interface{}{
[]interface{}{time.Unix(0, 0), "1.0"},
[]interface{}{time.Unix(0, 0).Add(24 * time.Hour), "2.0"},
[]interface{}{time.Unix(0, 0).Add(48 * time.Hour), "3.0"},
[]interface{}{time.Unix(0, 0).Add(72 * time.Hour), "4.0"},
}, false, 24*time.Hour)
if !reflect.DeepEqual(results, [][]interface{}{
[]interface{}{time.Unix(0, 0).Add(24 * time.Hour), nil},
[]interface{}{time.Unix(0, 0).Add(48 * time.Hour), nil},
[]interface{}{time.Unix(0, 0).Add(72 * time.Hour), nil},
}) {
t.Fatalf("unexpected results: %s", spew.Sdump(results))
}
}
// TestProccessAggregateDerivative tests the RawQueryDerivativeProcessor transformation function on the engine.
// The is called for a query with a GROUP BY.
func TestProcessAggregateDerivative(t *testing.T) {
tests := []struct {
name string
fn string
interval time.Duration
in [][]interface{}
exp [][]interface{}
}{
{
name: "empty input",
fn: "derivative",
interval: 24 * time.Hour,
in: [][]interface{}{},
exp: [][]interface{}{},
},
{
name: "single row returns 0.0",
fn: "derivative",
interval: 24 * time.Hour,
in: [][]interface{}{
[]interface{}{
time.Unix(0, 0), 1.0,
},
},
exp: [][]interface{}{
[]interface{}{
time.Unix(0, 0), 0.0,
},
},
},
{
name: "basic derivative",
fn: "derivative",
interval: 24 * time.Hour,
in: [][]interface{}{
[]interface{}{
time.Unix(0, 0), 1.0,
},
[]interface{}{
time.Unix(0, 0).Add(24 * time.Hour), 3.0,
},
[]interface{}{
time.Unix(0, 0).Add(48 * time.Hour), 5.0,
},
[]interface{}{
time.Unix(0, 0).Add(72 * time.Hour), 9.0,
},
},
exp: [][]interface{}{
[]interface{}{
time.Unix(0, 0).Add(24 * time.Hour), 2.0,
},
[]interface{}{
time.Unix(0, 0).Add(48 * time.Hour), 2.0,
},
[]interface{}{
time.Unix(0, 0).Add(72 * time.Hour), 4.0,
},
},
},
{
name: "12h interval",
fn: "derivative",
interval: 12 * time.Hour,
in: [][]interface{}{
[]interface{}{
time.Unix(0, 0), 1.0,
},
[]interface{}{
time.Unix(0, 0).Add(24 * time.Hour), 2.0,
},
[]interface{}{
time.Unix(0, 0).Add(48 * time.Hour), 3.0,
},
[]interface{}{
time.Unix(0, 0).Add(72 * time.Hour), 4.0,
},
},
exp: [][]interface{}{
[]interface{}{
time.Unix(0, 0).Add(24 * time.Hour), 0.5,
},
[]interface{}{
time.Unix(0, 0).Add(48 * time.Hour), 0.5,
},
[]interface{}{
time.Unix(0, 0).Add(72 * time.Hour), 0.5,
},
},
},
{
name: "negative derivatives",
fn: "derivative",
interval: 24 * time.Hour,
in: [][]interface{}{
[]interface{}{
time.Unix(0, 0), 1.0,
},
[]interface{}{
time.Unix(0, 0).Add(24 * time.Hour), 2.0,
},
[]interface{}{
time.Unix(0, 0).Add(48 * time.Hour), 0.0,
},
[]interface{}{
time.Unix(0, 0).Add(72 * time.Hour), 4.0,
},
},
exp: [][]interface{}{
[]interface{}{
time.Unix(0, 0).Add(24 * time.Hour), 1.0,
},
[]interface{}{
time.Unix(0, 0).Add(48 * time.Hour), -2.0,
},
[]interface{}{
time.Unix(0, 0).Add(72 * time.Hour), 4.0,
},
},
},
{
name: "negative derivatives",
fn: "non_negative_derivative",
interval: 24 * time.Hour,
in: [][]interface{}{
[]interface{}{
time.Unix(0, 0), 1.0,
},
[]interface{}{
time.Unix(0, 0).Add(24 * time.Hour), 2.0,
},
// Show resultes in negative derivative
[]interface{}{
time.Unix(0, 0).Add(48 * time.Hour), 0.0,
},
[]interface{}{
time.Unix(0, 0).Add(72 * time.Hour), 4.0,
},
},
exp: [][]interface{}{
[]interface{}{
time.Unix(0, 0).Add(24 * time.Hour), 1.0,
},
[]interface{}{
time.Unix(0, 0).Add(72 * time.Hour), 4.0,
},
},
},
{
name: "integer derivatives",
fn: "derivative",
interval: 24 * time.Hour,
in: [][]interface{}{
[]interface{}{
time.Unix(0, 0), 1.0,
},
[]interface{}{
time.Unix(0, 0).Add(24 * time.Hour), int64(3),
},
[]interface{}{
time.Unix(0, 0).Add(48 * time.Hour), int64(5),
},
[]interface{}{
time.Unix(0, 0).Add(72 * time.Hour), int64(9),
},
},
exp: [][]interface{}{
[]interface{}{
time.Unix(0, 0).Add(24 * time.Hour), 2.0,
},
[]interface{}{
time.Unix(0, 0).Add(48 * time.Hour), 2.0,
},
[]interface{}{
time.Unix(0, 0).Add(72 * time.Hour), 4.0,
},
},
},
{
name: "string derivatives",
fn: "derivative",
interval: 24 * time.Hour,
in: [][]interface{}{
[]interface{}{
time.Unix(0, 0), "1.0",
},
[]interface{}{
time.Unix(0, 0).Add(24 * time.Hour), "2.0",
},
[]interface{}{
time.Unix(0, 0).Add(48 * time.Hour), "3.0",
},
[]interface{}{
time.Unix(0, 0).Add(72 * time.Hour), "4.0",
},
},
exp: [][]interface{}{
[]interface{}{
time.Unix(0, 0), 0.0,
},
},
},
}
for _, test := range tests {
got := tsdb.ProcessAggregateDerivative(test.in, test.fn == "non_negative_derivative", test.interval)
if len(got) != len(test.exp) {
t.Fatalf("ProcessAggregateDerivative(%s) - %s\nlen mismatch: got %d, exp %d", test.fn, test.name, len(got), len(test.exp))
}
for i := 0; i < len(test.exp); i++ {
if test.exp[i][0] != got[i][0] || test.exp[i][1] != got[i][1] {
t.Fatalf("ProcessAggregateDerivative - %s results mismatch:\ngot %v\nexp %v", test.name, got, test.exp)
}
}
}
}
func TestProcessAggregateDerivative_Empty(t *testing.T) {
results := tsdb.ProcessAggregateDerivative([][]interface{}{}, false, 24*time.Hour)
if !reflect.DeepEqual(results, [][]interface{}{}) {
t.Fatalf("unexpected results: %s", spew.Sdump(results))
}
}