Playlist-level retry configuration

cmd/mxl-player/config_test.go

@@ -1,6 +1,11 @@
 package main
 
-import "testing"
+import (
+	"testing"
+	"time"
+
+	"mxl-player/internal/playback"
+)
 
 func TestAppArgsPlaybackConfig(t *testing.T) {
 	tests := []struct {
@@ -139,3 +144,42 @@ func TestAppArgsPlaybackConfig(t *testing.T) {
 		})
 	}
 }
+
+func TestResolveRetryPolicy(t *testing.T) {
+	cli := playback.RetryPolicy{
+		MaxAttempts: 0, InitialDelay: time.Second, MaxDelay: 5 * time.Second,
+	}
+	fileRetry := playback.RetryPolicy{
+		MaxAttempts: 4, InitialDelay: 250 * time.Millisecond, MaxDelay: 2 * time.Second,
+	}
+
+	tests := []struct {
+		name              string
+		playlist          playback.Playlist
+		cliMaxAttemptsSet bool
+		want              playback.RetryPolicy
+	}{
+		{name: "no playlist retry uses CLI", want: cli},
+		{
+			name:     "playlist retry is used by default",
+			playlist: playback.Playlist{Retry: &fileRetry},
+			want:     fileRetry,
+		},
+		{
+			name:              "explicit CLI infinite overrides playlist attempts",
+			playlist:          playback.Playlist{Retry: &fileRetry},
+			cliMaxAttemptsSet: true,
+			want: playback.RetryPolicy{
+				MaxAttempts: 0, InitialDelay: fileRetry.InitialDelay, MaxDelay: fileRetry.MaxDelay,
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			if got := resolveRetryPolicy(cli, test.cliMaxAttemptsSet, test.playlist); got != test.want {
+				t.Fatalf("resolveRetryPolicy() = %#v, want %#v", got, test.want)
+			}
+		})
+	}
+}