1 files changed, 76 insertions, 0 deletions
diff --git a/tests/cache-manifest.test.ts b/tests/cache-manifest.test.ts
new file mode 100644
index 0000000..d54cd8b
--- /dev/null
+++ b/tests/cache-manifest.test.ts
@@ -0,0 +1,76 @@
+import { test, expect } from 'bun:test';
+import { findCacheByKey, findCacheByPrefix } from '../scripts/cache/manifest';
+import type { CacheManifest } from '../scripts/cache/utils';
+
+test('findCacheByKey returns null when cache not found', () => {
+    const manifest: CacheManifest = {
+        version: 1,
+        caches: [
+            { key: 'cache1.tzst', hash: 'abc123', timestamp: 1000, lastAccessed: 1000 },
+            { key: 'cache2.tzst', hash: 'def456', timestamp: 2000, lastAccessed: 2000 }
+        ]
+    };
+
+    expect(findCacheByKey(manifest, 'cache3.tzst')).toBeNull();
+});
+
+test('findCacheByKey returns matching cache entry', () => {
+    const manifest: CacheManifest = {
+        version: 1,
+        caches: [
+            { key: 'cache1.tzst', hash: 'abc123', timestamp: 1000, lastAccessed: 1000 },
+            { key: 'cache2.tzst', hash: 'def456', timestamp: 2000, lastAccessed: 2000 }
+        ]
+    };
+
+    const result = findCacheByKey(manifest, 'cache1.tzst');
+    expect(result).not.toBeNull();
+    expect(result?.key).toBe('cache1.tzst');
+    expect(result?.hash).toBe('abc123');
+});
+
+test('findCacheByPrefix returns null when no caches match prefix', () => {
+    const manifest: CacheManifest = {
+        version: 1,
+        caches: [
+            { key: 'cache1.tzst', hash: 'abc123', timestamp: 1000, lastAccessed: 1000 },
+            { key: 'cache2.tzst', hash: 'def456', timestamp: 2000, lastAccessed: 2000 }
+        ]
+    };
+
+    expect(findCacheByPrefix(manifest, 'other-')).toBeNull();
+});
+
+test('findCacheByPrefix returns most recently created cache', () => {
+    const manifest: CacheManifest = {
+        version: 1,
+        caches: [
+            { key: 'extensions-abc123.tzst', hash: 'abc123', timestamp: 1000, lastAccessed: 1000 },
+            { key: 'extensions-def456.tzst', hash: 'def456', timestamp: 3000, lastAccessed: 3000 },
+            { key: 'extensions-ghi789.tzst', hash: 'ghi789', timestamp: 2000, lastAccessed: 2000 }
+        ]
+    };
+
+    const result = findCacheByPrefix(manifest, 'extensions-');
+    expect(result).not.toBeNull();
+    expect(result?.key).toBe('extensions-def456.tzst');
+    expect(result?.timestamp).toBe(3000);
+});
+
+test('findCacheByPrefix handles empty caches array', () => {
+    const manifest: CacheManifest = {
+        version: 1,
+        caches: []
+    };
+
+    expect(findCacheByPrefix(manifest, 'extensions-')).toBeNull();
+});
+
+test('findCacheByKey handles empty caches array', () => {
+    const manifest: CacheManifest = {
+        version: 1,
+        caches: []
+    };
+
+    expect(findCacheByKey(manifest, 'cache1.tzst')).toBeNull();
+});