scrollback_test.go RawHistoryFolder

1package daemon
2
3import (
4	"testing"
5
6	"github.com/bnema/vev/internal/domain"
7)
8
9func TestNewTabInitializesScrollback(t *testing.T) {
10	tests := []struct {
11		name    string
12		write   []byte
13		wantLen int
14		wantRow string
15	}{
16		{
17			name:    "primary evictions enter screen owned history",
18			write:   []byte("AAAA\r\nBBBB\r\nCCCC\r\n"),
19			wantLen: 1,
20			wantRow: "AAAA",
21		},
22		{
23			name:    "alternate screen evictions do not enter pane history",
24			write:   []byte("AAAA\r\nBBBB\r\nCCCC\r\n\x1b[?1049h1111\r\n2222\r\n3333\r\n4444\x1b[?1049l"),
25			wantLen: 1,
26			wantRow: "AAAA",
27		},
28	}
29
30	for _, tt := range tests {
31		t.Run(tt.name, func(t *testing.T) {
32			win := newTab(nil, domain.Size{Cols: 4, Rows: 3})
33			if win.focusedPane().history == nil {
34				t.Fatal("scrollback is nil")
35			}
36			if win.focusedPane().history != win.focusedPane().screen.History() {
37				t.Fatal("pane history is not owned by its screen")
38			}
39			if win.focusedPane().history.Cap() != defaultScrollbackRows {
40				t.Fatalf("scrollback cap = %d, want %d", win.focusedPane().history.Cap(), defaultScrollbackRows)
41			}
42
43			win.focusedPane().screen.Write(tt.write)
44
45			if got := win.focusedPane().history.Len(); got != tt.wantLen {
46				t.Fatalf("scrollback len = %d, want %d", got, tt.wantLen)
47			}
48			row := win.focusedPane().history.View().Row(0)
49			runes := make([]rune, len(row))
50			for i, c := range row {
51				runes[i] = c.Rune
52			}
53			if got := string(runes); got != tt.wantRow {
54				t.Fatalf("scrollback row = %q, want %q", got, tt.wantRow)
55			}
56		})
57	}
58}