melrōse musical expression player

package op import ( "testing" "github.com/emicklei/melrose/core" ) func TestTransposeMap_S(t *testing.T) { s := core.MustParseSequence("C D E") tr := NewTransposeMap(s, "1:1,3:2") if got, want := tr.S().Storex(), "sequence('D_ G_')"; got != want { t.Errorf("got [%v:%T] want [%v:%T]", got, got, want, want) } } func TestTransposeMap_Notes(t *testing.T) { s := core.MustParseSequence("C D E") tr := NewTransposeMap(s, "1:1,4:2") if got, want := len(tr.Notes()), 1; got != want { t.Errorf("got [%v] want [%v]", got, want) } tr = NewTransposeMap(s, "1:0") if got, want := tr.Notes()[0][0].MIDI(), 60; got != want { t.Errorf("got [%v] want [%v]", got, want) } } func TestTransposeMap_Storex(t *testing.T) { s := core.MustParseSequence("C") tr := NewTransposeMap(s, "1:1") if got, want := tr.Storex(), "transposemap('1:1',sequence('C'))"; got != want { t.Errorf("got [%v:%T] want [%v:%T]", got, got, want, want) } } func TestTransposeMap_Replaced(t *testing.T) { s1 := core.MustParseSequence("C") s2 := core.MustParseSequence("D") tr := NewTransposeMap(s1, "1:1") if core.IsIdenticalTo(tr, s1) { t.Error("should not be identical") } if !core.IsIdenticalTo(tr.Replaced(s1, s2).(TransposeMap).Target, s2) { t.Error("not replaced") } if !core.IsIdenticalTo(tr.Replaced(tr, s2), s2) { t.Error("should be replaced by s2") } tr = NewTransposeMap(tr, "1:1") if !core.IsIdenticalTo(tr.Replaced(tr.Target, s2).(TransposeMap).Target, s2) { t.Error("not replaced") } tr = NewTransposeMap(failingNoteConvertable{}, "1:1") if !core.IsIdenticalTo(tr.Replaced(s1, s2), tr) { t.Error("should be same") } }