// Test comparing SeriesIDs for equality.
func Test_SeriesIDs_Equals(t *testing.T) {
ids1 := tsdb.SeriesIDs{1, 2, 3}
ids2 := tsdb.SeriesIDs{1, 2, 3}
ids3 := tsdb.SeriesIDs{4, 5, 6}
if !ids1.Equals(ids2) {
t.Fatal("expected ids1 == ids2")
} else if ids1.Equals(ids3) {
t.Fatal("expected ids1 != ids3")
}
}
// Test removing one set of SeriesIDs from another.
func Test_SeriesIDs_Reject(t *testing.T) {
// Test all branches of if-else, exit loop because of 'j < len(r)', and append remainder from left.
ids1 := tsdb.SeriesIDs{1, 2, 3, 7}
ids2 := tsdb.SeriesIDs{1, 3, 4, 5, 6}
exp := tsdb.SeriesIDs{2, 7}
got := ids1.Reject(ids2)
if !exp.Equals(got) {
t.Fatalf("exp=%v, got=%v", exp, got)
}
// Test exit because of 'i < len(l)'.
ids1 = tsdb.SeriesIDs{1}
ids2 = tsdb.SeriesIDs{1, 2}
exp = tsdb.SeriesIDs{}
got = ids1.Reject(ids2)
if !exp.Equals(got) {
t.Fatalf("exp=%v, got=%v", exp, got)
}
}
// Test intersecting sets of SeriesIDs.
func Test_SeriesIDs_Intersect(t *testing.T) {
// Test swaping l & r, all branches of if-else, and exit loop when 'j < len(r)'
ids1 := tsdb.SeriesIDs{1, 3, 4, 5, 6}
ids2 := tsdb.SeriesIDs{1, 2, 3, 7}
exp := tsdb.SeriesIDs{1, 3}
got := ids1.Intersect(ids2)
if !exp.Equals(got) {
t.Fatalf("exp=%v, got=%v", exp, got)
}
// Test exit for loop when 'i < len(l)'
ids1 = tsdb.SeriesIDs{1}
ids2 = tsdb.SeriesIDs{1, 2}
exp = tsdb.SeriesIDs{1}
got = ids1.Intersect(ids2)
if !exp.Equals(got) {
t.Fatalf("exp=%v, got=%v", exp, got)
}
}