| name | test-environment |
| description | Test environment system (authored DomeGradient and IBLGradient, component schemas) against the poke example using the iwsdk CLI. |
| argument-hint | [--suite gradient|ibl|defaults|all] |
Environment System Test
Run 6 test suites covering authored environment verification, system registration, component registration, scene hierarchy, ECS data modification, and stability.
Configuration:
- EXAMPLE_DIR:
$IWSDK_REPO_ROOT/examples/poke
Tool calls: every tool call is npx iwsdk <subcommand> [--input-json '<JSON>'] [--timeout <ms>], run from inside the example workspace (cwd $EXAMPLE_DIR). The CLI auto-discovers the IWSDK app root from cwd, so no path tricks are required. Run npx iwsdk mcp inspect from the example to discover available tools and their CLI subcommands.
<JSON> is a JSON object string. Omit --input-json if no arguments are needed.- Output is JSON on stdout:
{ok, workspaceRoot, operation, result}. Parse it to check assertions.
- Use
--timeout 20000 for operations that may take longer (reload, xr enter, screenshot).
IMPORTANT: Run each Bash command one at a time. Parse the JSON output and verify assertions before moving to the next command. Do NOT chain multiple CLI commands together.
IMPORTANT: When the instructions say "wait N seconds", use sleep N as a separate Bash command.
IMPORTANT: Boolean values in ecs set-component must be actual JSON booleans (value: true), NOT strings (value: "true"). Strings silently fail to coerce.
Step 1: Install Dependencies
cd $IWSDK_REPO_ROOT/examples/poke && npm run fresh:install
Wait for this to complete before proceeding.
Step 2: Start Dev Server
Start the dev server as a background task using the Bash tool's run_in_background: true parameter:
cd $IWSDK_REPO_ROOT/examples/poke && npm run dev
IMPORTANT: This command MUST be run with run_in_background: true on the Bash tool — do NOT append & to the command itself.
Once the background task is launched, poll the output for Vite's ready message (up to 60s). You can also run npx iwsdk dev status from the example directory until state.running becomes true. You do not need to extract or manage the port yourself; subsequent commands resolve the active runtime through the CLI automatically.
If the server fails to start within 60 seconds, report FAIL for all suites and skip to Step 5.
Step 3: Verify Connectivity
npx iwsdk ecs systems 2>/dev/null
This must return JSON with a list of systems. If it fails:
- Check the dev server output for errors
- Try killing and restarting the server (Step 2)
- If it still fails, report FAIL for all suites and skip to Step 5
Step 4: Run Test Suites
Pre-test Setup
Run these commands in order:
-
npx iwsdk browser reload --timeout 20000 2>/dev/null
Then: sleep 3
-
npx iwsdk xr enter --timeout 20000 2>/dev/null
Then: sleep 2
-
npx iwsdk browser logs --input-json '{"count":20,"level":["error","warn"]}' 2>/dev/null
Assert: No error-level logs.
Suite 1: Authored Environment Verification
Test 1.1: Find LevelRoot Dynamically
npx iwsdk ecs find --input-json '{"withComponents":["LevelRoot"]}' 2>/dev/null
Assert: Exactly 1 entity. Save its entityIndex as <root>.
Test 1.2: LevelRoot Has Environment Components
npx iwsdk ecs query --input-json '{"entityIndex":<root>,"components":["DomeGradient","IBLGradient"]}' 2>/dev/null
Assert: Both components are present with the values explicitly authored in
public/scenes/poke.iwsdk.scene.json:
DomeGradient defaults:
| Field | Expected Value |
|---|
sky | [0.2423, 0.6172, 0.8308, 1.0] (soft blue) |
equator | [0.6584, 0.7084, 0.7913, 1.0] (gray-blue) |
ground | [0.807, 0.7758, 0.7454, 1.0] (warm beige) |
intensity | 1.0 |
_needsUpdate | false (already processed) |
IBLGradient defaults:
| Field | Expected Value |
|---|
sky | [0.6902, 0.749, 0.7843, 1.0] (soft blue-gray — different from DomeGradient!) |
equator | [0.6584, 0.7084, 0.7913, 1.0] (same as DomeGradient) |
ground | [0.807, 0.7758, 0.7454, 1.0] (same as DomeGradient) |
intensity | 1.0 |
_needsUpdate | false |
Key detail: DomeGradient and IBLGradient have different sky defaults.
Suite 2: System Registration
Test 2.1: EnvironmentSystem Present
npx iwsdk ecs systems 2>/dev/null
Assert:
- EnvironmentSystem at priority 0
- Query entity counts:
domeGradients: 1, iblGradients: 1, domeTextures: 0, iblTextures: 0
Suite 3: Component Registration
Test 3.1: All Environment Components Registered
npx iwsdk ecs components 2>/dev/null
Assert these components exist with correct schemas:
| Component | Key Fields |
|---|
DomeGradient | sky (Color), equator (Color), ground (Color), intensity (Float32), _needsUpdate (Boolean) |
DomeTexture | src (FilePath), blurriness (Float32), intensity (Float32), rotation (Vec3), _needsUpdate (Boolean) |
IBLGradient | sky (Color), equator (Color), ground (Color), intensity (Float32), _needsUpdate (Boolean) |
IBLTexture | src (FilePath, default: "room"), intensity (Float32), rotation (Vec3), _needsUpdate (Boolean) |
Suite 4: Scene Hierarchy
Test 4.1: Dome Mesh in Scene
npx iwsdk scene runtime-hierarchy --input-json '{"maxDepth":2}' 2>/dev/null
The gradient dome mesh is added directly to the scene (not under LevelRoot). Look for an unnamed mesh node at the scene root level.
Suite 5: ECS Data Modification
Test 5.1: Modify DomeGradient Sky Color
npx iwsdk ecs set-component --input-json '{"entityIndex":<root>,"componentId":"DomeGradient","field":"sky","value":"[1.0, 0.0, 0.0, 1.0]"}' 2>/dev/null
Then verify:
npx iwsdk ecs query --input-json '{"entityIndex":<root>,"components":["DomeGradient"]}' 2>/dev/null
Assert: sky = [1.0, 0.0, 0.0, 1.0]
Test 5.2: Modify IBLGradient Intensity
npx iwsdk ecs set-component --input-json '{"entityIndex":<root>,"componentId":"IBLGradient","field":"intensity","value":"2.0"}' 2>/dev/null
npx iwsdk ecs set-component --input-json '{"entityIndex":<root>,"componentId":"IBLGradient","field":"_needsUpdate","value":true}' 2>/dev/null
Assert: ECS value updates.
Suite 6: Stability
npx iwsdk browser logs --input-json '{"count":30,"level":["error","warn"]}' 2>/dev/null
Assert: No application-level errors or warnings. Pre-existing 404 resource errors from page load are acceptable.
Step 5: Cleanup & Results
Kill the dev server:
cd $IWSDK_REPO_ROOT/examples/poke && npx iwsdk dev down
Output a summary table:
| Suite | Result |
|--------------------------|-----------|
| 1. Authored Environment | PASS/FAIL |
| 2. System Registration | PASS/FAIL |
| 3. Component Registration| PASS/FAIL |
| 4. Scene Hierarchy | PASS/FAIL |
| 5. ECS Data Modification | PASS/FAIL |
| 6. Stability | PASS/FAIL |
If any suite fails, include which assertion failed and actual vs expected values.
Recovery
If at any point a transient error occurs (server crash, WebSocket timeout, connection refused, etc.) that is NOT caused by a source code bug:
- Stop the dev server:
cd $IWSDK_REPO_ROOT/examples/poke && npx iwsdk dev down
- Restart: re-run Step 2 to start a fresh dev server
- Re-run the Pre-test Setup (reload, accept session)
- Retry the failed suite
Only give up after one retry attempt per suite. If the same suite fails twice, mark it FAIL and continue to the next suite.
Known Issues & Workarounds
Live gradient color changes don't update visuals
Setting DomeGradient/IBLGradient color fields via npx iwsdk ecs set-component updates the ECS data but does NOT update the Three.js shader uniforms. Testing is limited to data verification.
_needsUpdate consumed immediately
The _needsUpdate flag is consumed by the EnvironmentSystem and reset to false. The response may already show newValue: false.
Environment components are explicit
LevelSystem does not synthesize dome or IBL components. Their absence is
meaningful, and each scene must author the background and image-based lighting
it wants on the level root. The poke fixture scene includes both gradient
components explicitly.
Entity indices change on reload
Never cache entity indices across page reloads. Always re-discover via npx iwsdk ecs find.
Boolean values must be JSON booleans
When setting boolean fields (like _needsUpdate) via npx iwsdk ecs set-component, the value must be a JSON boolean (true), not a string ("true"). Strings silently fail.
