viewpoint-core 0.4.3

High-level browser automation API for Viewpoint
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444

#![cfg(feature = "integration")]

//! ARIA snapshot ref isolation tests.
//!
//! These tests verify that refs are properly scoped to their context and page.
//! Refs from one context/page cannot be resolved on a different context/page.

use std::sync::Once;

use viewpoint_core::Browser;

static TRACING_INIT: Once = Once::new();

/// Initialize tracing for tests.
fn init_tracing() {
    TRACING_INIT.call_once(|| {
        tracing_subscriber::fmt()
            .with_env_filter(
                tracing_subscriber::EnvFilter::from_default_env()
                    .add_directive(tracing::Level::INFO.into()),
            )
            .with_test_writer()
            .try_init()
            .ok();
    });
}

// =============================================================================
// Context Isolation Tests
// =============================================================================

/// Test that refs captured on one context cannot be resolved on a different context.
///
/// This verifies context isolation - refs are scoped to their originating context.
#[tokio::test]
async fn test_ref_rejected_on_wrong_context() {
    init_tracing();

    let browser = Browser::launch()
        .headless(true)
        .launch()
        .await
        .expect("Failed to launch browser");

    // Create first context and capture a ref
    let context1 = browser
        .new_context()
        .await
        .expect("Failed to create context 1");
    let page1 = context1.new_page().await.expect("Failed to create page 1");

    page1
        .set_content(r#"<html><body><button id="btn1">Button in Context 1</button></body></html>"#)
        .set()
        .await
        .expect("Failed to set content");

    let snapshot1 = page1
        .aria_snapshot()
        .await
        .expect("Failed to get snapshot from context 1");

    // Find button ref from context 1
    fn find_button_ref(snapshot: &viewpoint_core::AriaSnapshot) -> Option<String> {
        if snapshot.role.as_deref() == Some("button") {
            return snapshot.node_ref.clone();
        }
        for child in &snapshot.children {
            if let Some(r) = find_button_ref(child) {
                return Some(r);
            }
        }
        None
    }

    let context1_button_ref =
        find_button_ref(&snapshot1).expect("Should find button ref in context 1");
    println!("Context 1 button ref: {context1_button_ref}");

    // Verify the ref works on context 1's page
    let handle = page1
        .element_from_ref(&context1_button_ref)
        .await
        .expect("Ref should resolve on correct context");
    assert!(
        handle.is_attached().await.unwrap(),
        "Element should be attached"
    );

    // Create second context with a different page
    let context2 = browser
        .new_context()
        .await
        .expect("Failed to create context 2");
    let page2 = context2.new_page().await.expect("Failed to create page 2");

    page2
        .set_content(r#"<html><body><button id="btn2">Button in Context 2</button></body></html>"#)
        .set()
        .await
        .expect("Failed to set content");

    // Try to resolve context 1's ref on context 2's page - should fail
    let result = page2.element_from_ref(&context1_button_ref).await;

    assert!(
        result.is_err(),
        "Ref from context 1 should NOT be resolvable on context 2"
    );

    // Verify the error message mentions context mismatch
    let err_msg = result.unwrap_err().to_string();
    println!("Error message: {err_msg}");
    assert!(
        err_msg.contains("Context index mismatch") || err_msg.contains("context"),
        "Error should mention context mismatch, got: {err_msg}"
    );

    // Clean up
    browser.close().await.expect("Failed to close browser");
}

/// Test that context indices are assigned correctly across multiple contexts.
#[tokio::test]
async fn test_context_indices_assigned_correctly() {
    init_tracing();

    let browser = Browser::launch()
        .headless(true)
        .launch()
        .await
        .expect("Failed to launch browser");

    // Create multiple contexts and verify they get unique indices
    let context1 = browser
        .new_context()
        .await
        .expect("Failed to create context 1");
    let context2 = browser
        .new_context()
        .await
        .expect("Failed to create context 2");
    let context3 = browser
        .new_context()
        .await
        .expect("Failed to create context 3");

    // Indices should be unique (not necessarily sequential due to other tests)
    let idx1 = context1.index();
    let idx2 = context2.index();
    let idx3 = context3.index();

    assert_ne!(idx1, idx2, "Context 1 and 2 should have different indices");
    assert_ne!(idx2, idx3, "Context 2 and 3 should have different indices");
    assert_ne!(idx1, idx3, "Context 1 and 3 should have different indices");

    println!("Context indices: {idx1} {idx2} {idx3}");

    // Clean up
    browser.close().await.expect("Failed to close browser");
}

/// Test that refs from different contexts have different prefixes.
#[tokio::test]
async fn test_refs_from_different_contexts_have_different_prefixes() {
    init_tracing();

    let browser = Browser::launch()
        .headless(true)
        .launch()
        .await
        .expect("Failed to launch browser");

    let context1 = browser
        .new_context()
        .await
        .expect("Failed to create context 1");
    let context2 = browser
        .new_context()
        .await
        .expect("Failed to create context 2");

    let page1 = context1.new_page().await.expect("Failed to create page 1");
    let page2 = context2.new_page().await.expect("Failed to create page 2");

    // Set same content on both pages
    let html = "<html><body><button>Test Button</button></body></html>";
    page1
        .set_content(html)
        .set()
        .await
        .expect("Failed to set content");
    page2
        .set_content(html)
        .set()
        .await
        .expect("Failed to set content");

    // Capture snapshots
    let snapshot1 = page1
        .aria_snapshot()
        .await
        .expect("Failed to get snapshot 1");
    let snapshot2 = page2
        .aria_snapshot()
        .await
        .expect("Failed to get snapshot 2");

    // Find button refs
    fn find_button_ref(snapshot: &viewpoint_core::AriaSnapshot) -> Option<String> {
        if snapshot.role.as_deref() == Some("button") {
            return snapshot.node_ref.clone();
        }
        for child in &snapshot.children {
            if let Some(r) = find_button_ref(child) {
                return Some(r);
            }
        }
        None
    }

    let ref1 = find_button_ref(&snapshot1).expect("Should find button ref in snapshot 1");
    let ref2 = find_button_ref(&snapshot2).expect("Should find button ref in snapshot 2");

    println!("Ref from context 1: {ref1}");
    println!("Ref from context 2: {ref2}");

    // Refs should have different context prefixes
    assert_ne!(
        ref1, ref2,
        "Refs from different contexts should be different"
    );

    // Extract context index from refs (format: c{ctx}p{page}f{frame}e{counter})
    let ctx1_idx: usize = ref1[1..ref1.find('p').unwrap()].parse().unwrap();
    let ctx2_idx: usize = ref2[1..ref2.find('p').unwrap()].parse().unwrap();
    assert_ne!(ctx1_idx, ctx2_idx, "Context indices in refs should differ");

    // Clean up
    browser.close().await.expect("Failed to close browser");
}

// =============================================================================
// Page Isolation Tests
// =============================================================================

/// Test that page indices are assigned correctly within a context.
#[tokio::test]
async fn test_page_indices_assigned_correctly() {
    init_tracing();

    let browser = Browser::launch()
        .headless(true)
        .launch()
        .await
        .expect("Failed to launch browser");

    let context = browser
        .new_context()
        .await
        .expect("Failed to create context");

    // Create multiple pages and verify they get incrementing indices
    let page1 = context.new_page().await.expect("Failed to create page 1");
    let page2 = context.new_page().await.expect("Failed to create page 2");
    let page3 = context.new_page().await.expect("Failed to create page 3");

    // Pages should have sequential indices starting from 0
    assert_eq!(page1.index(), 0, "First page should have index 0");
    assert_eq!(page2.index(), 1, "Second page should have index 1");
    assert_eq!(page3.index(), 2, "Third page should have index 2");

    // Clean up
    browser.close().await.expect("Failed to close browser");
}

/// Test that refs from different pages have different prefixes.
#[tokio::test]
async fn test_refs_from_different_pages_have_different_prefixes() {
    init_tracing();

    let browser = Browser::launch()
        .headless(true)
        .launch()
        .await
        .expect("Failed to launch browser");

    let context = browser
        .new_context()
        .await
        .expect("Failed to create context");

    let page1 = context.new_page().await.expect("Failed to create page 1");
    let page2 = context.new_page().await.expect("Failed to create page 2");

    // Set same content on both pages
    let html = "<html><body><button>Test Button</button></body></html>";
    page1
        .set_content(html)
        .set()
        .await
        .expect("Failed to set content");
    page2
        .set_content(html)
        .set()
        .await
        .expect("Failed to set content");

    // Capture snapshots
    let snapshot1 = page1
        .aria_snapshot()
        .await
        .expect("Failed to get snapshot 1");
    let snapshot2 = page2
        .aria_snapshot()
        .await
        .expect("Failed to get snapshot 2");

    // Find button refs
    fn find_button_ref(snapshot: &viewpoint_core::AriaSnapshot) -> Option<String> {
        if snapshot.role.as_deref() == Some("button") {
            return snapshot.node_ref.clone();
        }
        for child in &snapshot.children {
            if let Some(r) = find_button_ref(child) {
                return Some(r);
            }
        }
        None
    }

    let ref1 = find_button_ref(&snapshot1).expect("Should find button ref in snapshot 1");
    let ref2 = find_button_ref(&snapshot2).expect("Should find button ref in snapshot 2");

    println!("Ref from page 1: {ref1}");
    println!("Ref from page 2: {ref2}");

    // Refs should have different page prefixes
    assert_ne!(ref1, ref2, "Refs from different pages should be different");

    // Extract page index from refs (format: c{ctx}p{page}f{frame}e{counter})
    let p_start1 = ref1.find('p').unwrap() + 1;
    let p_end1 = ref1.find('f').unwrap();
    let page1_idx: usize = ref1[p_start1..p_end1].parse().unwrap();

    let p_start2 = ref2.find('p').unwrap() + 1;
    let p_end2 = ref2.find('f').unwrap();
    let page2_idx: usize = ref2[p_start2..p_end2].parse().unwrap();

    assert_ne!(page1_idx, page2_idx, "Page indices in refs should differ");
    assert_eq!(page1_idx, 0, "First page should have index 0");
    assert_eq!(page2_idx, 1, "Second page should have index 1");

    // Clean up
    browser.close().await.expect("Failed to close browser");
}

/// Test that refs captured on one page cannot be resolved on a different page in the same context.
///
/// This verifies page isolation - refs are scoped to their originating page.
#[tokio::test]
async fn test_ref_rejected_on_wrong_page() {
    init_tracing();

    let browser = Browser::launch()
        .headless(true)
        .launch()
        .await
        .expect("Failed to launch browser");

    // Create a single context with two pages
    let context = browser
        .new_context()
        .await
        .expect("Failed to create context");

    let page1 = context.new_page().await.expect("Failed to create page 1");
    let page2 = context.new_page().await.expect("Failed to create page 2");

    // Set content on page 1
    page1
        .set_content(r#"<html><body><button id="btn1">Button on Page 1</button></body></html>"#)
        .set()
        .await
        .expect("Failed to set content on page 1");

    // Set content on page 2
    page2
        .set_content(r#"<html><body><button id="btn2">Button on Page 2</button></body></html>"#)
        .set()
        .await
        .expect("Failed to set content on page 2");

    // Capture snapshot from page 1
    let snapshot1 = page1
        .aria_snapshot()
        .await
        .expect("Failed to get snapshot from page 1");

    // Find button ref from page 1
    fn find_button_ref(snapshot: &viewpoint_core::AriaSnapshot) -> Option<String> {
        if snapshot.role.as_deref() == Some("button") {
            return snapshot.node_ref.clone();
        }
        for child in &snapshot.children {
            if let Some(r) = find_button_ref(child) {
                return Some(r);
            }
        }
        None
    }

    let page1_button_ref = find_button_ref(&snapshot1).expect("Should find button ref on page 1");
    println!("Page 1 button ref: {page1_button_ref}");

    // Verify the ref works on page 1
    let handle = page1
        .element_from_ref(&page1_button_ref)
        .await
        .expect("Ref should resolve on correct page");
    assert!(
        handle.is_attached().await.unwrap(),
        "Element should be attached"
    );

    // Try to resolve page 1's ref on page 2 - should fail
    let result = page2.element_from_ref(&page1_button_ref).await;

    assert!(
        result.is_err(),
        "Ref from page 1 should NOT be resolvable on page 2"
    );

    // Verify the error message mentions page mismatch
    let err_msg = result.unwrap_err().to_string();
    println!("Error message: {err_msg}");
    assert!(
        err_msg.contains("Page index mismatch") || err_msg.contains("page"),
        "Error should mention page mismatch, got: {err_msg}"
    );

    // Clean up
    browser.close().await.expect("Failed to close browser");
}