validation_test.go RawHistoryFolder

1package html
2
3import (
4	"testing"
5
6	"github.com/bnema/vev-vt/core"
7	"github.com/stretchr/testify/require"
8)
9
10func TestRendererRejectsMalformedOrOverLimitFramesWithoutPendingState(t *testing.T) {
11	renderer, err := New(Options{Limits: Limits{MaxCells: 2}})
12	require.NoError(t, err)
13
14	tooLarge := core.NewFrame(3, 1)
15	_, err = renderer.Prepare(tooLarge, nil, false, Cursor{})
16	require.ErrorIs(t, err, ErrLimitExceeded)
17
18	orphan := core.NewFrame(2, 1)
19	orphan.Set(0, 0, core.Cell{Continuation: true, Style: core.DefaultStyle()})
20	_, err = renderer.Prepare(orphan, nil, false, Cursor{})
21	require.ErrorContains(t, err, "orphan wide continuation")
22
23	combining := core.NewFrame(1, 1)
24	combining.Set(0, 0, core.Cell{Rune: '\u0301', Style: core.DefaultStyle()})
25	_, err = renderer.Prepare(combining, nil, false, Cursor{})
26	require.ErrorContains(t, err, "unsupported zero-width rune")
27
28	wide := core.NewFrame(2, 1)
29	wide.Set(0, 0, core.Cell{Rune: '界', Style: core.DefaultStyle()})
30	wide.Set(1, 0, core.Cell{Rune: 'X', Continuation: true, Style: core.DefaultStyle()})
31	_, err = renderer.Prepare(wide, nil, false, Cursor{})
32	require.ErrorContains(t, err, "wide continuation contains a rune")
33
34	alternate := core.DefaultStyle()
35	alternate.Bold = true
36	wide.Set(1, 0, core.Cell{Continuation: true, Style: alternate})
37	_, err = renderer.Prepare(wide, nil, false, Cursor{})
38	require.ErrorContains(t, err, "style differs from its head")
39
40	valid := core.NewFrame(2, 1)
41	prepared, err := renderer.Prepare(valid, nil, false, Cursor{})
42	require.NoError(t, err)
43	require.NoError(t, prepared.Abort())
44}
45
46func TestNewRejectsNegativeLimits(t *testing.T) {
47	_, err := New(Options{Limits: Limits{MaxCells: -1}})
48	require.ErrorIs(t, err, ErrInvalidLimits)
49	require.ErrorContains(t, err, "must not be negative")
50}
51
52func TestRendererEnforcesEncodedByteAndStyleLimits(t *testing.T) {
53	frame := core.NewFrame(2, 1)
54	alternate := core.DefaultStyle()
55	alternate.Bold = true
56	frame.Set(1, 0, core.Cell{Rune: 'X', Style: alternate})
57
58	styleLimited, err := New(Options{Limits: Limits{MaxStyles: 1}})
59	require.NoError(t, err)
60	_, err = styleLimited.Prepare(frame, nil, false, Cursor{})
61	require.ErrorIs(t, err, ErrLimitExceeded)
62
63	byteLimited, err := New(Options{Limits: Limits{MaxGeneratedBytes: 1}})
64	require.NoError(t, err)
65	_, err = byteLimited.Prepare(core.NewFrame(1, 1), nil, false, Cursor{})
66	require.ErrorIs(t, err, ErrLimitExceeded)
67	require.ErrorContains(t, err, "generated update is")
68	_, err = byteLimited.Prepare(core.NewFrame(1, 1), nil, false, Cursor{})
69	require.ErrorIs(t, err, ErrLimitExceeded)
70}