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test: add E2E tests for stdio detection across all task count and cache combinations
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‎crates/vite_task_bin/tests/e2e_snapshots/fixtures/stdio-detection/package.json‎

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{
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"name": "stdio-detection-test",
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"private": true
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}

‎crates/vite_task_bin/tests/e2e_snapshots/fixtures/stdio-detection/packages/other/package.json‎

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{
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"name": "other",
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"scripts": {
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"check-tty": "check-tty",
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"check-tty-cached": "check-tty"
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}
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}

‎crates/vite_task_bin/tests/e2e_snapshots/fixtures/stdio-detection/pnpm-workspace.yaml‎

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packages:
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- packages/*

‎crates/vite_task_bin/tests/e2e_snapshots/fixtures/stdio-detection/snapshots.toml‎

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# Tests stdio mode detection across all combinations of task count and cache state.
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#
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# `check-tty` prints whether each stdio stream is a TTY. In the PTY test
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# environment, inherited stdio shows as "tty"; piped/null shows as "not-tty".
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#
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# Only one combination produces inherited (TTY) stdio: a single task with
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# caching disabled. All other combinations use piped stdio — either because
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# multiple tasks require labeled output, or because caching needs to capture
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# or replay output.
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# ─── Single task ─────────────────────────────────────────────────
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[[e2e]]
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name = "single task, cache disabled"
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# Expect: all stdio inherited from terminal (tty)
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steps = [
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"vp run check-tty",
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]
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[[e2e]]
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name = "single task, cache miss"
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# Expect: stdio piped for cache capture (not-tty)
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steps = [
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"vp run check-tty-cached",
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]
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[[e2e]]
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name = "single task, cache hit"
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# Expect: first run is a miss (not-tty), second run replays cached output
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steps = [
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"vp run check-tty-cached",
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"vp run check-tty-cached",
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]
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# ─── Multiple tasks (-r) ────────────────────────────────────────
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[[e2e]]
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name = "multiple tasks, cache disabled"
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# Expect: stdio piped for labeled output (not-tty)
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steps = [
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"vp run -r check-tty",
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]
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[[e2e]]
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name = "multiple tasks, cache miss"
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# Expect: stdio piped (not-tty)
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steps = [
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"vp run -r check-tty-cached",
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]
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[[e2e]]
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name = "multiple tasks, cache hit"
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# Expect: first run is a miss (not-tty), second run replays cached output
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steps = [
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"vp run -r check-tty-cached",
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"vp run -r check-tty-cached",
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]

‎crates/vite_task_bin/tests/e2e_snapshots/fixtures/stdio-detection/snapshots/multiple tasks, cache disabled.snap‎

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---
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source: crates/vite_task_bin/tests/e2e_snapshots/main.rs
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expression: e2e_outputs
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---
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> vp run -r check-tty
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~/packages/other$ check-tty
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stdin:not-tty
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stdout:not-tty
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stderr:not-tty
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$ check-tty ⊘ cache disabled: no cache config
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stdin:not-tty
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stdout:not-tty
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stderr:not-tty
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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Vite+ Task Runner • Execution Summary
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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Statistics: 2 tasks • 0 cache hits • 1 cache misses • 1 cache disabled
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Performance: 0% cache hit rate
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Task Details:
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────────────────────────────────────────────────
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[1] other#check-tty: ~/packages/other$ check-tty ✓
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→ Cache miss: no previous cache entry found
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·······················································
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[2] stdio-detection-test#check-tty: $ check-tty ✓
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→ Cache disabled in task configuration
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

‎crates/vite_task_bin/tests/e2e_snapshots/fixtures/stdio-detection/snapshots/multiple tasks, cache hit.snap‎

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---
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source: crates/vite_task_bin/tests/e2e_snapshots/main.rs
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expression: e2e_outputs
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---
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> vp run -r check-tty-cached
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~/packages/other$ check-tty
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stdin:not-tty
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stdout:not-tty
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stderr:not-tty
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$ check-tty
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stdin:not-tty
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stdout:not-tty
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stderr:not-tty
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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Vite+ Task Runner • Execution Summary
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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Statistics: 2 tasks • 0 cache hits • 2 cache misses
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Performance: 0% cache hit rate
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Task Details:
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────────────────────────────────────────────────
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[1] other#check-tty-cached: ~/packages/other$ check-tty ✓
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→ Cache miss: no previous cache entry found
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·······················································
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[2] stdio-detection-test#check-tty-cached: $ check-tty ✓
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→ Cache miss: no previous cache entry found
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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> vp run -r check-tty-cached
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~/packages/other$ check-tty ✓ cache hit, replaying
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stdin:not-tty
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stdout:not-tty
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stderr:not-tty
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$ check-tty ✓ cache hit, replaying
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stdin:not-tty
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stdout:not-tty
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stderr:not-tty
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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Vite+ Task Runner • Execution Summary
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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Statistics: 2 tasks • 2 cache hits • 0 cache misses
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Performance: 100% cache hit rate, <duration> saved in total
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Task Details:
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────────────────────────────────────────────────
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[1] other#check-tty-cached: ~/packages/other$ check-tty ✓
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→ Cache hit - output replayed - <duration> saved
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·······················································
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[2] stdio-detection-test#check-tty-cached: $ check-tty ✓
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→ Cache hit - output replayed - <duration> saved
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

‎crates/vite_task_bin/tests/e2e_snapshots/fixtures/stdio-detection/snapshots/multiple tasks, cache miss.snap‎

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---
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source: crates/vite_task_bin/tests/e2e_snapshots/main.rs
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expression: e2e_outputs
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---
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> vp run -r check-tty-cached
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~/packages/other$ check-tty
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stdin:not-tty
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stdout:not-tty
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stderr:not-tty
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$ check-tty
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stdin:not-tty
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stdout:not-tty
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stderr:not-tty
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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Vite+ Task Runner • Execution Summary
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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Statistics: 2 tasks • 0 cache hits • 2 cache misses
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Performance: 0% cache hit rate
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Task Details:
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────────────────────────────────────────────────
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[1] other#check-tty-cached: ~/packages/other$ check-tty ✓
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→ Cache miss: no previous cache entry found
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·······················································
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[2] stdio-detection-test#check-tty-cached: $ check-tty ✓
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→ Cache miss: no previous cache entry found
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

‎crates/vite_task_bin/tests/e2e_snapshots/fixtures/stdio-detection/snapshots/single task, cache disabled.snap‎

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---
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source: crates/vite_task_bin/tests/e2e_snapshots/main.rs
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expression: e2e_outputs
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---
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> vp run check-tty
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$ check-tty ⊘ cache disabled: no cache config
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stdin:tty
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stdout:tty
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stderr:tty
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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Vite+ Task Runner • Execution Summary
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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Statistics: 1 tasks • 0 cache hits • 0 cache misses • 1 cache disabled
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Performance: 0% cache hit rate
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Task Details:
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────────────────────────────────────────────────
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[1] stdio-detection-test#check-tty: $ check-tty ✓
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→ Cache disabled in task configuration
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

‎crates/vite_task_bin/tests/e2e_snapshots/fixtures/stdio-detection/snapshots/single task, cache hit.snap‎

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---
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source: crates/vite_task_bin/tests/e2e_snapshots/main.rs
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expression: e2e_outputs
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---
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> vp run check-tty-cached
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$ check-tty
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stdin:not-tty
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stdout:not-tty
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stderr:not-tty
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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Vite+ Task Runner • Execution Summary
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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Statistics: 1 tasks • 0 cache hits • 1 cache misses
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Performance: 0% cache hit rate
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Task Details:
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────────────────────────────────────────────────
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[1] stdio-detection-test#check-tty-cached: $ check-tty ✓
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→ Cache miss: no previous cache entry found
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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> vp run check-tty-cached
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$ check-tty ✓ cache hit, replaying
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stdin:not-tty
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stdout:not-tty
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stderr:not-tty
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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Vite+ Task Runner • Execution Summary
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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Statistics: 1 tasks • 1 cache hits • 0 cache misses
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Performance: 100% cache hit rate, <duration> saved in total
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Task Details:
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────────────────────────────────────────────────
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[1] stdio-detection-test#check-tty-cached: $ check-tty ✓
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→ Cache hit - output replayed - <duration> saved
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

‎crates/vite_task_bin/tests/e2e_snapshots/fixtures/stdio-detection/snapshots/single task, cache miss.snap‎

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---
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source: crates/vite_task_bin/tests/e2e_snapshots/main.rs
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expression: e2e_outputs
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---
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> vp run check-tty-cached
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$ check-tty
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stdin:not-tty
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stdout:not-tty
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stderr:not-tty
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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Vite+ Task Runner • Execution Summary
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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Statistics: 1 tasks • 0 cache hits • 1 cache misses
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Performance: 0% cache hit rate
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Task Details:
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────────────────────────────────────────────────
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[1] stdio-detection-test#check-tty-cached: $ check-tty ✓
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→ Cache miss: no previous cache entry found
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━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

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