~/talks

Valera Zakharov

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Bazel on Android: The Good, The Bad and The Uglydroidcon London 20252025-10-30
Slack migrates Android builds to Bazel, builds the full app target and runs 45,000+ unit tests in CI, and measures ~70% faster test result times in CI with a…
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Gamifying Reduction of Technical Debtdroidcon San Francisco 20242024-06-06
A config-driven Code Health Score system quantifies and gamifies technical debt by merging Android lint and Detect SAR outputs, applying weighted checks, and…
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E2E2U: Slack’s journey to developer-driven end-to-end testingdroidcon SF 20192019-11-18
Slack migrates its black‑box Calabash suite to Espresso migration, converting ~100 slow E2E tests down to ~80 stable ones and integrating them as…
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How to Build a Performance Testing Pipeline from Scratchdroidcon San Francisco 20182018-11-19
A production pipeline is built that runs UI scenarios on physical devices (cloud-backed via Firebase Test Lab), records network with OKReplay, collects…
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Mobile performance testing at SlackDevFest Ukraine 20182018-10-12
Built a CI pipeline that validates every code change for performance by running pre-merge Slack alert checks from Jenkins on device farms, using Firebase Test…
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UI testing is so easy - said no developer everdroidcon San Francisco 20172017-11-05
Slack builds a power pack pattern to make Espresso UI tests hermetic and targeted, replacing repetitive Mockito setup and Dagger wiring with pack classes that…
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UI testing is so easy - said no developer everdroidcon San Francisco 20172017-11-05
Slack proves reliable Android UI testing at scale by making tests targeted and hermetic and automating state setup. They run 555 functional UI tests, use…
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