Community & Careers questions and discussions

Editorial question47.2K views4,774 votes1 answer2,752 following

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Preprocessor mocks vs. dependency injection for credential-free Fortran integration tests

Context A Fortran codebase calls an external REST API that requires production credentials. The goal is to run integration tests in CI without those credentials, using test doubles for the HTTP client. Two documented patterns exist: C-preprocessor conditional compilation ( #ifdef TEST ) and Fortran 2003 polymorphism with abstract interfaces. Constraint The p

mocking testing dependency-injectionNeel Cedar0 rep · 18 Dec 2023, 02:49 UTC

Editorial question122.5K views3,019 votes1 answer1 comment1,404 following

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InMemoryCache typePolicies for Array Merge Strategies

Apollo Client's InMemoryCache utilizes typePolicies to define how incoming data is merged into the normalized store. When dealing with paginated lists or filtered result sets, the default merge behavior may not align with specific UI requirements for data retention or deduplication. The goal is to implement a custom merge function that prevents the overwriti

inmemorycache

apollographql type-policiesSky Indigo0 rep · 15 Dec 2023, 23:10 UTC

Editorial question54.5K views660 votes1 answer4,929 following

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Ensuring Consistent Restoration of Mirrored Queues with rabbitmq_snapshot

Restoration Strategy & Verification When a RabbitMQ cluster uses the rabbitmq_snapshot plugin to capture a point‑in‑time state, the goal is to restore that state without losing or duplicating messages, especially for mirrored queues that span multiple nodes. Key constraints include the necessity of stopping the cluster (or taking each node offline) befor

restore

rabbitmq snapshotMira Finch0 rep · 15 Dec 2023, 16:58 UTC

Editorial question81.2K views661 votes1 answer1 comment4,848 following

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AdonisJS static file serving middleware path traversal protection

AdonisJS static file serving middleware maps request URLs to files inside the project’s public directory without automatically checking for path‑traversal sequences. The goal is to prevent accidental exposure of files located outside the intended public folder when the middleware receives requests containing '../' or similar patterns. Currently the middlewar

adonisjs security path-traversalRin Orbit0 rep · 15 Dec 2023, 19:14 UTC

Editorial question145.7K views4,034 votes1 answer1 comment2,220 following

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Template Literal Type limits for ARIA attribute validation

Enforcing ARIA naming conventions via types TypeScript Template Literal Types enable the creation of strict string patterns, which can be used to ensure that component props conform to accessibility standards, such as requiring attributes to start with the aria- prefix. While these types can be combined with mapped types and discriminated unions to link spec

aria accessibility template-literal-typesRin Dey0 rep · 15 Dec 2023, 09:17 UTC

Editorial question149.4K views4,954 votes1 answer1 comment1,760 following

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OpenCV C++ core and Python cv2 binding: Mat ownership and deallocation across the language boundary

The integration goal is to define clear ownership and release timing for cv::Mat objects that cross from OpenCV C++ core into the Python cv2 binding. The C++ core uses reference-counted cv::Mat with shallow copy semantics. The Python binding wraps a Mat in a capsule with a custom deallocator that decrements the C++ refcount when the Python object is finalize

cv-mat python-binding memory-managementNeel Moss0 rep · 14 Dec 2023, 04:26 UTC

Editorial question129.9K views4,074 votes1 answer1 comment3,338 following

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Hibernate pagination behavior with fetch joins

When implementing pagination in a Java application using Hibernate ORM, the setFirstResult() and setMaxResults() methods are used to limit the result set and define the offset. This ensures the JVM heap is not overwhelmed by large datasets. However, there is a known architectural conflict when these methods are combined with HQL fetch join operations. If a q

hibernate

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javaRin Dey0 rep · 14 Dec 2023, 02:57 UTC

Editorial question138.9K views4,548 votes1 answer1,195 following

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ClojureScript :advanced builds break JS interop after a compiler version bump

Goal I am upgrading a ClojureScript project's compiler and build tool to a newer release, and I want the existing :advanced optimization build to keep working against the third-party JavaScript libraries the app depends on. The :simple build is not a concern; the unresolved part is the aggressive renaming and dead-code elimination that :advanced applies thro

google-closure-compiler advanced-compilation

clojurescriptIra Lane0 rep · 14 Dec 2023, 05:40 UTC

Editorial question69.8K views1,028 votes1 answer4,478 following

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A-Frame <a-assets> timeout permits scene startup while entities render untextured

When an asset within <a-assets> exceeds its timeout threshold, A-Frame proceeds with scene initialization regardless of the asset's load status. This investigation aims to clarify whether entities referencing the timed-out asset receive a deterministic rendering state or remain in an undefined visual condition. The timeout attribute's default and suppo

webvr-scene timeout-handling aframe-asset-timeoutDev Indigo0 rep · 13 Dec 2023, 18:45 UTC