Fix unit tests to use Int instead of Uint

internal/playlist/item_test.go

@@ -10,12 +10,12 @@ import (
 func TestListItem_Next_Prev(t *testing.T) {
 	var playlist Playlist
 	playlist.Append(&protocol.Song{
-		Start: rand.Uint64(),
-		Stop:  rand.Uint64(),
+		Start: rand.Int63(),
+		Stop:  rand.Int63(),
 	})
 	playlist.Append(&protocol.Song{
-		Start: rand.Uint64(),
-		Stop:  rand.Uint64(),
+		Start: rand.Int63(),
+		Stop:  rand.Int63(),
 	})
 	if playlist.Start().Next() != playlist.End() {
 		t.Fatalf("Start().Next failed")
@@ -29,8 +29,8 @@ func TestListItem_Distance(t *testing.T) {
 	var playlist Playlist
 	count := rand.Intn(10) + 10
 	for I := 0; I < count; I ++ {
-		a, b := rand.Uint64(), rand.Uint64()
-		start, stop := math.MinUint64(a,b), math.MaxUint64(a,b)
+		a, b := rand.Int63(), rand.Int63()
+		start, stop := math.MinInt64(a,b), math.MaxInt64(a,b)
 		playlist.Append(&protocol.Song{Start: start, Stop: stop})
 	}
 	answer, err := playlist.Start().Distance(playlist.End())

internal/playlist/playlist_test.go

@@ -16,8 +16,8 @@ func TestPlaylist_Duration_Empty(t *testing.T) {
 
 func TestPlaylist_Duration_One(t *testing.T) {
 	var playlist Playlist
-	a, b := rand.Uint64(), rand.Uint64()
-	start, stop := math.MinUint64(a,b), math.MaxUint64(a,b)
+	a, b := rand.Int63(), rand.Int63()
+	start, stop := math.MinInt64(a,b), math.MaxInt64(a,b)
 	playlist.Append(&protocol.Song{Start: start, Stop: stop})
 	if answer := playlist.Duration(); answer != stop - start {
 		t.Fatalf("Expected duration %v, got %v", stop-start, answer)
@@ -27,10 +27,10 @@ func TestPlaylist_Duration_One(t *testing.T) {
 func TestPlaylist_Duration_Multiple(t *testing.T) {
 	var playlist Playlist
 	count := rand.Intn(10)+10
-	sum := uint64(0)
+	sum := int64(0)
 	for I := 0; I < count; I ++ {
-		a, b := rand.Uint64(), rand.Uint64()
-		start, stop := math.MinUint64(a,b), math.MaxUint64(a,b)
+		a, b := rand.Int63(), rand.Int63()
+		start, stop := math.MinInt64(a,b), math.MaxInt64(a,b)
 		playlist.Append(&protocol.Song{Start: start, Stop: stop})
 		sum += stop-start
 	}
@@ -49,8 +49,8 @@ func TestPlaylist_Start_Empty(t *testing.T) {
 func TestPlaylist_Append_One(t *testing.T) {
 	var playlist Playlist
 	item := protocol.Song{
-		Start: rand.Uint64(),
-		Stop:  rand.Uint64(),
+		Start: rand.Int63(),
+		Stop:  rand.Int63(),
 	}
 	playlist.Append(&item)
 	if answer := playlist.Start().Song; answer != item {
@@ -64,19 +64,19 @@ func TestPlaylist_Append_One(t *testing.T) {
 func TestPlaylist_Append_Multiple(t *testing.T) {
 	var playlist Playlist
 	start := protocol.Song{
-		Start: rand.Uint64(),
-		Stop:  rand.Uint64(),
+		Start: rand.Int63(),
+		Stop:  rand.Int63(),
 	}
 	playlist.Append(&start)
 	count := rand.Intn(10) + 10;
 	for I := 0; I < count; I ++ {
-		a, b := rand.Uint64(), rand.Uint64()
-		start, stop := math.MinUint64(a,b), math.MaxUint64(a,b)
+		a, b := rand.Int63(), rand.Int63()
+		start, stop := math.MinInt64(a,b), math.MaxInt64(a,b)
 		playlist.Append(&protocol.Song{Start: start, Stop: stop})
 	}
 	end := protocol.Song{
-		Start: rand.Uint64(),
-		Stop:  rand.Uint64(),
+		Start: rand.Int63(),
+		Stop:  rand.Int63(),
 	}
 	playlist.Append(&end)
 	if answer := playlist.Start().Song; answer != start {
@@ -98,12 +98,12 @@ func TestPlaylist_End_Empty(t *testing.T) {
 func TestPlaylist_Erase_Start(t *testing.T) {
 	var playlist Playlist
 	playlist.Append(&protocol.Song{
-		Start: rand.Uint64(),
-		Stop:  rand.Uint64(),
+		Start: rand.Int63(),
+		Stop:  rand.Int63(),
 	})
 	playlist.Append(&protocol.Song{
-		Start: rand.Uint64(),
-		Stop:  rand.Uint64(),
+		Start: rand.Int63(),
+		Stop:  rand.Int63(),
 	})
 	first := playlist.Start()
 	last := playlist.End()
@@ -122,12 +122,12 @@ func TestPlaylist_Erase_Start(t *testing.T) {
 func TestPlaylist_Erase_End(t *testing.T) {
 	var playlist Playlist
 	playlist.Append(&protocol.Song{
-		Start: rand.Uint64(),
-		Stop:  rand.Uint64(),
+		Start: rand.Int63(),
+		Stop:  rand.Int63(),
 	})
 	playlist.Append(&protocol.Song{
-		Start: rand.Uint64(),
-		Stop:  rand.Uint64(),
+		Start: rand.Int63(),
+		Stop:  rand.Int63(),
 	})
 	first := playlist.Start()
 	last := playlist.End()
@@ -146,16 +146,16 @@ func TestPlaylist_Erase_End(t *testing.T) {
 func TestPlaylist_Erase_Middle(t *testing.T) {
 	var playlist Playlist
 	playlist.Append(&protocol.Song{
-		Start: rand.Uint64(),
-		Stop:  rand.Uint64(),
+		Start: rand.Int63(),
+		Stop:  rand.Int63(),
 	})
 	playlist.Append(&protocol.Song{
-		Start: rand.Uint64(),
-		Stop:  rand.Uint64(),
+		Start: rand.Int63(),
+		Stop:  rand.Int63(),
 	})
 	playlist.Append(&protocol.Song{
-		Start: rand.Uint64(),
-		Stop:  rand.Uint64(),
+		Start: rand.Int63(),
+		Stop:  rand.Int63(),
 	})
 	first := playlist.Start()
 	middle := first.Next()