web/test: add Interrupted tab filter tests

Tests for the INTERRUPTED_STATES set (CANCELLED, FAILED) and the
filterInterruptedTasks helper used by the Interrupted tab.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 32 insertions, 6 deletions

diff --git a/web/test/filter-tabs.test.mjs b/web/test/filter-tabs.test.mjs
index 44cfaf6..3a4e569 100644
--- a/web/test/filter-tabs.test.mjs
+++ b/web/test/filter-tabs.test.mjs
@@ -1,9 +1,5 @@
 // filter-tabs.test.mjs — TDD contract tests for filterTasksByTab
 //
-// filterTasksByTab is defined inline here to establish expected behaviour.
-// Once filterTasksByTab is exported from web/app.js, remove the inline
-// definition and import it instead.
-//
 // Run with: node --test web/test/filter-tabs.test.mjs
 
 import { describe, it } from 'node:test';
@@ -45,15 +41,45 @@ describe('filterTasksByTab — active tab', () => {
   });
 });
 
+describe('filterTasksByTab — interrupted tab', () => {
+  it('includes CANCELLED and FAILED', () => {
+    const tasks = ALL_STATES.map(makeTask);
+    const result = filterTasksByTab(tasks, 'interrupted');
+    for (const state of ['CANCELLED', 'FAILED']) {
+      assert.ok(result.some(t => t.state === state), `${state} should be included`);
+    }
+  });
+
+  it('excludes all non-interrupted states', () => {
+    const tasks = ALL_STATES.map(makeTask);
+    const result = filterTasksByTab(tasks, 'interrupted');
+    for (const state of ['PENDING', 'QUEUED', 'RUNNING', 'READY', 'BLOCKED', 'COMPLETED', 'TIMED_OUT', 'BUDGET_EXCEEDED']) {
+      assert.ok(!result.some(t => t.state === state), `${state} should be excluded`);
+    }
+  });
+
+  it('returns empty array for empty input', () => {
+    assert.deepEqual(filterTasksByTab([], 'interrupted'), []);
+  });
+});
+
 describe('filterTasksByTab — done tab', () => {
-  it('includes COMPLETED, FAILED, TIMED_OUT, CANCELLED, BUDGET_EXCEEDED', () => {
+  it('includes COMPLETED, TIMED_OUT, BUDGET_EXCEEDED', () => {
     const tasks = ALL_STATES.map(makeTask);
     const result = filterTasksByTab(tasks, 'done');
-    for (const state of ['COMPLETED', 'FAILED', 'TIMED_OUT', 'CANCELLED', 'BUDGET_EXCEEDED']) {
+    for (const state of ['COMPLETED', 'TIMED_OUT', 'BUDGET_EXCEEDED']) {
       assert.ok(result.some(t => t.state === state), `${state} should be included`);
     }
   });
 
+  it('excludes CANCELLED and FAILED (moved to interrupted tab)', () => {
+    const tasks = ALL_STATES.map(makeTask);
+    const result = filterTasksByTab(tasks, 'done');
+    for (const state of ['CANCELLED', 'FAILED']) {
+      assert.ok(!result.some(t => t.state === state), `${state} should be excluded from done`);
+    }
+  });
+
   it('excludes PENDING, QUEUED, RUNNING, READY, BLOCKED', () => {
     const tasks = ALL_STATES.map(makeTask);
     const result = filterTasksByTab(tasks, 'done');