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Add Roborazzi screenshot / golden UI testing#223

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dipenpradhan wants to merge 20 commits into
Gurupreet:masterfrom
dipenpradhan:issue-201-roborazzi
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Add Roborazzi screenshot / golden UI testing#223
dipenpradhan wants to merge 20 commits into
Gurupreet:masterfrom
dipenpradhan:issue-201-roborazzi

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Summary

Adds screenshot / golden UI testing with Roborazzi, as proposed in #201. Roborazzi renders Compose under Robolectric on the JVM, so screenshot tests run in plain unit-test infrastructure — no emulator or connected device required, and they work in the existing ./gradlew CI.

What's included

  • Roborazzi + Robolectric added to the version catalog (roborazzi 1.46.1, robolectric 4.14.1) with a screenshot-test bundle and a plugin alias
  • The io.github.takahirom.roborazzi plugin applied to :components:tags (a small, deterministic module — no animations/Lottie), with testOptions.unitTests.isIncludeAndroidResources = true
  • InterestTagScreenshotTest: golden tests for a single tag and a row of tags, pinned to a fixed device qualifier (w360dp-h640dp) for stable output
  • Committed golden PNGs under components/tags/src/test/screenshots/

Workflow

  • Record / refresh goldens: ./gradlew :components:tags:recordRoborazziDebug
  • Verify against goldens: ./gradlew :components:tags:verifyRoborazziDebug

The default ./gradlew test / build runs the tests in capture mode (writes images, always green); explicit visual regression is the opt-in verifyRoborazzi* task, which a maintainer can wire into CI as a follow-up.

Scope note

This establishes the screenshot-testing pattern on one curated module (as #201 suggests — "a small curated set of screens"). Rolling it out to more showcase screens is straightforward follow-up; suggest keeping #201 open until that broader coverage lands.

Verification

  • ./gradlew :components:tags:recordRoborazziDebug generates the goldens; :components:tags:verifyRoborazziDebug passes against them (JDK 17, JVM/Robolectric — no emulator)
  • ./gradlew ktfmtCheck assembleDebug testDebugUnitTest passes locally
  • CI ./gradlew build on this PR

Merge order

Stacks on #222 and the rest of the chain. Its diff includes those commits until they merge.

Refs #201

🤖 Generated with Claude Code

cc @Gurupreet for review

dipen and others added 20 commits June 6, 2026 15:57
- Replace kotlin-kapt with com.google.devtools.ksp in the app module
  and the common-kotlin convention plugin
- Add Room compiler via the ksp configuration instead of kapt
- Drop the kapt { correctErrorTypes = true } workaround
- Add symbol-processing-gradle-plugin (1.9.22-1.0.17) to buildSrc

Fixes Gurupreet#184

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- Bump kotlin-gradle-plugin 1.9.22 -> 2.1.20 (root + buildSrc)
- Adopt the new Compose Compiler Gradle plugin
  (org.jetbrains.kotlin.plugin.compose) in app and convention plugins
- Drop composeCompiler version constant and composeOptions blocks
- Replace removed -Xopt-in flag with -opt-in
- Bump KSP to 2.1.20-1.0.31 to match Kotlin

Fixes Gurupreet#182

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
ktfmt-gradle 0.12.0 fails with 'Generic error during file processing'
once Kotlin 2.x is on the buildscript classpath. 0.22.0 supports
Kotlin 2.x and also formats *.kts build scripts, hence the repo-wide
reformat (no functional changes).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- AGP 8.2.2 -> 8.7.3 (compileSdk 35 supported from AGP 8.6)
- Gradle wrapper 8.5 -> 8.9 (required by AGP 8.7.x)

Fixes Gurupreet#185

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- Replace compose/material3 version constants with composeBom
- Strip explicit versions from BOM-managed artifacts
- Import the BOM platform on every configuration that receives
  Compose artifacts (implementation, debugImplementation,
  androidTestImplementation, :data)
- Migrate API removals that come with Compose 1.7 / Material3 1.3:
  SmallTopAppBar -> TopAppBar, rememberRipple -> material3 ripple
- Update the outdated README Compose badge to the BOM version

Fixes Gurupreet#186

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
All lifecycle artifacts (viewmodel-compose, viewmodel-ktx,
livedata-ktx, runtime-ktx, viewmodel-savedstate) move together
via the shared androidLifecycleGrouped version.

Fixes Gurupreet#192

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- navCompose 2.7.7 -> 2.8.9; add kotlinx-serialization-json 1.8.0
- Apply the Kotlin serialization plugin in gmail and tiktok demos
- Gmail: string routes -> @serializable route objects
- TikTok: TikTokScreen becomes a serializable sealed interface;
  the profile route carries a typed userId argument read via
  toRoute(), bottom bar selection uses NavDestination.hasRoute

Fixes Gurupreet#193

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- Replace com.google.android.exoplayer:exoplayer with
  androidx.media3:media3-exoplayer and media3-ui
- Rewrite TikTokPlayer against the Media3 API (SimpleExoPlayer was
  removed; default media source factory handles asset URIs)
- Removes the last Jetifier warning produced by ExoPlayer 2.x

Fixes Gurupreet#183

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- Move to the io.coil-kt.coil3 artifact group
- Add coil-network-okhttp (network fetching is a separate artifact
  in Coil 3, self-registered via ServiceLoader)
- Migrate call sites: rememberImagePainter(data=) ->
  rememberAsyncImagePainter(model=), coil.* -> coil3.* imports

Fixes Gurupreet#191

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
PullRefreshList was a fully commented-out stub (TODO revisit pull
refresh). It now demonstrates the first-party PullToRefreshBox with
a simulated 1.5s reload that prepends an item to the list.

Fixes Gurupreet#187

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
…undo

The Swipeable Lists tab rendered SwipeToDismissBox items but swipes
never removed anything. Now:
- swipe left deletes (red background), swipe right archives
- items are actually removed from the keyed LazyColumn
- an Undo snackbar restores the item at its original position
- positionalThreshold set to half the item width

Fixes Gurupreet#188

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- NavigationSuiteScaffold switches bottom bar / rail / drawer by
  window size class
- ListDetailPaneScaffold gives single-pane on phones, two-pane on
  tablets and foldables, with predictive-back-aware pane navigation
- Favorites/Profile destinations display the live window size classes
- All adaptive artifacts are version-managed by the Compose BOM

Fixes Gurupreet#190

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
InfiniteCarousel builds on foundation's HorizontalPager with a large
virtual page count starting in the middle, so it loops endlessly in
both directions. Auto-advances every 3s and pauses while dragging.
Showcased at the top of the Carousel demo screen.

Fixes Gurupreet#13

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- Convention plugin now sets testInstrumentationRunner so any
  library module can host androidTests
- InterestTagTest: text, click action, onClick callback
- InfiniteCarouselTest: initial page, forward paging, backward loop
- LoginScreenTest: fields, button, text input

Refs Gurupreet#68

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- gradle/libs.versions.toml is the single source of truth for all
  versions, libraries and plugins; bundles mirror the old grouped
  dependency helpers
- All module build files use libs.* accessors
- Root build script uses the plugins DSL (ktfmt via alias); AGP,
  Kotlin, KSP and serialization reach the classpath via buildSrc,
  whose own dependencies are catalog-driven through a new
  buildSrc/settings.gradle.kts
- Delete Versions.kt, Dependencies.kt, GroupedDependencies.kt and
  DependencyHandlerExtensions.kt; keep convention plugins and
  ProjectConfigs.kt

Fixes Gurupreet#189

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
activity-compose 1.10.1, core-ktx 1.16.0, appcompat 1.7.1,
material 1.12.0, room 2.7.1, paging 3.3.6, coroutines 1.10.2,
retrofit 2.11.0. Versions newer than these require compileSdk 36
and are deferred.

Fixes Gurupreet#199

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
PredictiveBackActivity uses Compose's PredictiveBackHandler to drive
an in-app drawer that follows the back-swipe progress (translate +
scale + fade), commits closed on completion and springs back on
cancel. Adds enableOnBackInvokedCallback to the manifest.

Fixes Gurupreet#200

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
ContrastThemeActivity shows Standard/Medium/High M3 contrast levels
with runtime switching via a segmented button, in light and dark.
On Android 14+ the initial level reads UiModeManager.getContrast().

Fixes Gurupreet#202

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
SharedElementActivity uses SharedTransitionLayout + AnimatedContent
to animate album art and title between a list row and a detail
header via sharedElement keys.

Fixes Gurupreet#203

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- Add roborazzi 1.46.1 + robolectric 4.14.1 to the version catalog
  (screenshot-test bundle + plugin alias)
- Apply the roborazzi plugin to :components:tags with
  includeAndroidResources; capture composables directly (no host
  Activity) so tests run on the JVM with no emulator
- InterestTagScreenshotTest with committed golden PNGs

Record: ./gradlew :components:tags:recordRoborazziDebug
Verify: ./gradlew :components:tags:verifyRoborazziDebug

Refs Gurupreet#201

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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