Skip to content

[tests] BitmapContextTest.AdaptiveTest to not crash.#24500

Merged
rolfbjarne merged 2 commits intomainfrom
dev/rolf/tests-split
Jan 14, 2026
Merged

[tests] BitmapContextTest.AdaptiveTest to not crash.#24500
rolfbjarne merged 2 commits intomainfrom
dev/rolf/tests-split

Conversation

@rolfbjarne
Copy link
Member

  1. Split the AdaptiveTest into 4 different tests to make it easier to figure out
    where crashes occur.

  2. Use autorelease pools to have more consistent memory management. This means
    the OnReleaseInfo callbacks will be called during the test, so adjust accordingly.

  3. Create a CGRenderingBufferProvider in OnAllocate callbacks. This seems to be
    what fixes the crash. This also makes it so that the calls to CGBitmapContext.ToImage()
    succeed, so adjust accordingly.

1. Split the AdaptiveTest into 4 different tests to make it easier to figure out
   where crashes occur.

2. Use autorelease pools to have more consistent memory management. This means
   the OnReleaseInfo callbacks will be called during the test, so adjust accordingly.

3. Create a CGRenderingBufferProvider in OnAllocate callbacks. This seems to be
   what fixes the crash. This also makes it so that the calls to CGBitmapContext.ToImage()
   succeed, so adjust accordingly.
Copy link
Contributor

Copilot AI left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pull request overview

This PR fixes crashes in the BitmapContextTest.CreateAdaptive test by splitting it into 4 isolated tests, introducing autorelease pools for deterministic memory management, and properly creating CGRenderingBufferProvider instances in the OnAllocate callbacks.

Changes:

  • Split single CreateAdaptive test into 4 separate tests (CreateAdaptive_1 through CreateAdaptive_4) to isolate test scenarios and make crash locations more identifiable
  • Wrapped test code in NSAutoreleasePool using blocks to ensure consistent memory management and callback invocation timing
  • Modified OnAllocate callbacks to create and return CGRenderingBufferProvider instances instead of returning null, which fixes the crashes and allows ToImage() calls to succeed

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@rolfbjarne rolfbjarne enabled auto-merge (squash) January 13, 2026 14:14
@vs-mobiletools-engineering-service2
Copy link
Collaborator

✅ [CI Build #8c945c2] Build passed (Build packages) ✅

Pipeline on Agent
Hash: 8c945c2fad1c28b29ce37f43efe6cea4499b1e9d [PR build]

@vs-mobiletools-engineering-service2
Copy link
Collaborator

✅ [PR Build #8c945c2] Build passed (Detect API changes) ✅

Pipeline on Agent
Hash: 8c945c2fad1c28b29ce37f43efe6cea4499b1e9d [PR build]

@vs-mobiletools-engineering-service2
Copy link
Collaborator

✅ API diff for current PR / commit

NET (empty diffs)

✅ API diff vs stable

NET (empty diffs)

ℹ️ Generator diff

Generator Diff: vsdrops (html) vsdrops (raw diff) gist (raw diff) - Please review changes)

Pipeline on Agent
Hash: 8c945c2fad1c28b29ce37f43efe6cea4499b1e9d [PR build]

@vs-mobiletools-engineering-service2
Copy link
Collaborator

✅ [CI Build #8c945c2] Build passed (Build macOS tests) ✅

Pipeline on Agent
Hash: 8c945c2fad1c28b29ce37f43efe6cea4499b1e9d [PR build]

@vs-mobiletools-engineering-service2
Copy link
Collaborator

💻 [CI Build #8c945c2] Tests on macOS X64 - Mac Sonoma (14) passed 💻

All tests on macOS X64 - Mac Sonoma (14) passed.

Pipeline on Agent
Hash: 8c945c2fad1c28b29ce37f43efe6cea4499b1e9d [PR build]

@vs-mobiletools-engineering-service2
Copy link
Collaborator

💻 [CI Build #8c945c2] Tests on macOS M1 - Mac Monterey (12) passed 💻

All tests on macOS M1 - Mac Monterey (12) passed.

Pipeline on Agent
Hash: 8c945c2fad1c28b29ce37f43efe6cea4499b1e9d [PR build]

@vs-mobiletools-engineering-service2
Copy link
Collaborator

💻 [CI Build #8c945c2] Tests on macOS M1 - Mac Ventura (13) passed 💻

All tests on macOS M1 - Mac Ventura (13) passed.

Pipeline on Agent
Hash: 8c945c2fad1c28b29ce37f43efe6cea4499b1e9d [PR build]

@vs-mobiletools-engineering-service2
Copy link
Collaborator

💻 [CI Build #8c945c2] Tests on macOS arm64 - Mac Sequoia (15) passed 💻

All tests on macOS arm64 - Mac Sequoia (15) passed.

Pipeline on Agent
Hash: 8c945c2fad1c28b29ce37f43efe6cea4499b1e9d [PR build]

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2
Copy link
Collaborator

💻 [CI Build #8c945c2] Tests on macOS arm64 - Mac Tahoe (26) passed 💻

All tests on macOS arm64 - Mac Tahoe (26) passed.

Pipeline on Agent
Hash: 8c945c2fad1c28b29ce37f43efe6cea4499b1e9d [PR build]

@vs-mobiletools-engineering-service2
Copy link
Collaborator

🚀 [CI Build #8c945c2] Test results 🚀

Test results

✅ All tests passed on VSTS: test results.

🎉 All 119 tests passed 🎉

Tests counts

✅ cecil: All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (iOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (MacCatalyst): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (macOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (Multiple platforms): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (tvOS): All 1 tests passed. Html Report (VSDrops) Download
✅ framework: All 2 tests passed. Html Report (VSDrops) Download
✅ fsharp: All 4 tests passed. Html Report (VSDrops) Download
✅ generator: All 5 tests passed. Html Report (VSDrops) Download
✅ interdependent-binding-projects: All 4 tests passed. [attempt 2] Html Report (VSDrops) Download
✅ introspection: All 4 tests passed. Html Report (VSDrops) Download
✅ linker: All 44 tests passed. Html Report (VSDrops) Download
✅ monotouch (iOS): All 9 tests passed. Html Report (VSDrops) Download
✅ monotouch (MacCatalyst): All 11 tests passed. Html Report (VSDrops) Download
✅ monotouch (macOS): All 9 tests passed. Html Report (VSDrops) Download
✅ monotouch (tvOS): All 11 tests passed. [attempt 2] Html Report (VSDrops) Download
✅ msbuild: All 2 tests passed. Html Report (VSDrops) Download
✅ windows: All 3 tests passed. Html Report (VSDrops) Download
✅ xcframework: All 4 tests passed. Html Report (VSDrops) Download
✅ xtro: All 1 tests passed. Html Report (VSDrops) Download

Pipeline on Agent
Hash: 8c945c2fad1c28b29ce37f43efe6cea4499b1e9d [PR build]

@rolfbjarne rolfbjarne merged commit e691c86 into main Jan 14, 2026
45 checks passed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

4 participants