rework framer tests

internal/framer/separator_test.go

@@ -7,7 +7,7 @@ import (
 	"github.com/jwetzell/showbridge-go/internal/framer"
 )
 
-func TestGoodSeparatorFramer(t *testing.T) {
+func TestGoodSeparatorFramerDecode(t *testing.T) {
 	tests := []struct {
 		name     string
 		framer   framer.Framer
@@ -78,3 +78,53 @@ func TestGoodSeparatorFramer(t *testing.T) {
 		})
 	}
 }
+
+func TestGoodSeparatorFramerEncode(t *testing.T) {
+	tests := []struct {
+		name     string
+		framer   framer.Framer
+		input    []byte
+		expected []byte
+	}{
+		{
+			name:     "new line separator",
+			framer:   framer.GetFramer("LF"),
+			input:    []byte("Hello"),
+			expected: []byte("Hello\n"),
+		},
+		{
+			name:     "CR separator",
+			framer:   framer.GetFramer("CR"),
+			input:    []byte("Hello"),
+			expected: []byte("Hello\r"),
+		},
+		{
+			name:     "CRLF separator",
+			framer:   framer.GetFramer("CRLF"),
+			input:    []byte("Hello"),
+			expected: []byte("Hello\r\n"),
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			frame := test.framer.Encode(test.input)
+			if !slices.Equal(frame, test.expected) {
+				t.Errorf("separator framer got %s, expected %s", frame, test.expected)
+			}
+		})
+	}
+}
+
+func TestSeparatorFrameBuffer(t *testing.T) {
+	framer := framer.GetFramer("LF")
+	framer.Decode([]byte("Hello\nWorld\nThis is a test\nextra"))
+	if !slices.Equal(framer.Buffer(), []byte("extra")) {
+		t.Errorf("separator framer buffer got %s, expected %s", framer.Buffer(), []byte("extra"))
+	}
+
+	framer.Clear()
+	if !slices.Equal(framer.Buffer(), []byte{}) {
+		t.Errorf("separator framer buffer got %s, expected empty slice", framer.Buffer())
+	}
+}