Add unit tests for the ComputedProperty class

package.json

@@ -157,7 +157,7 @@
     "npm-run-all2": "^6.0.6",
     "prettier": "^2.8.0",
     "puppeteer": "^20.9.0",
-    "qunit": "^2.19.4",
+    "qunit": "^2.20.1",
     "recast": "^0.22.0",
     "rollup": "^4.2.0",
     "rsvp": "^4.8.5",
@@ -401,4 +401,4 @@
     "node": "16.20.0",
     "pnpm": "8.10.0"
   }
-}
+}

packages/@ember/-internals/metal/tests/unit/computed-property-test.js

@@ -0,0 +1,101 @@
+import { module, test } from 'qunit';
+import EmberObject from '@ember/object';
+import ComputedProperty from '@ember/-internals/metal/lib/computed.ts';
+import { metaFor, tagMetaFor, tagFor, validateTag } from '@ember/-internals/metal/lib/tags';
+
+module('Unit | ComputedProperty', function() {
+  test('get method - CT1', function(assert) {
+    let obj = EmberObject.create();
+    let keyName = 'testKey';
+    let computedProperty = new ComputedProperty(function() {
+      return 'testValue';
+    });
+
+    // Simulate conditions for CT1
+    let meta = metaFor(obj);
+    meta.setRevisionFor(keyName, undefined);
+    computedProperty._dependentKeys = undefined;
+
+    let propertyTag = tagFor(obj, keyName, tagMetaFor(obj));
+    validateTag(propertyTag, 0); // Simulate validateTag returning false
+
+    let result = computedProperty.get(obj, keyName);
+    assert.equal(result, undefined, 'Expected value should be undefined');
+  });
+
+  test('get method - CT2', function(assert) {
+    let obj = EmberObject.create();
+    let keyName = 'testKey';
+    let computedProperty = new ComputedProperty(function() {
+      return 'testValue';
+    });
+
+    // Simulate conditions for CT2
+    let meta = metaFor(obj);
+    meta.setRevisionFor(keyName, 1);
+    computedProperty._dependentKeys = undefined;
+
+    let propertyTag = tagFor(obj, keyName, tagMetaFor(obj));
+    validateTag(propertyTag, 0); // Simulate validateTag returning false
+
+    let result = computedProperty.get(obj, keyName);
+    assert.equal(result, 'testValue', 'Expected value should be returned');
+  });
+
+  test('get method - CT3', function(assert) {
+    let obj = EmberObject.create();
+    let keyName = 'testKey';
+    let computedProperty = new ComputedProperty(function() {
+      return 'testValue';
+    });
+
+    // Simulate conditions for CT3
+    let meta = metaFor(obj);
+    meta.setRevisionFor(keyName, undefined);
+    computedProperty._dependentKeys = undefined;
+
+    let propertyTag = tagFor(obj, keyName, tagMetaFor(obj));
+    validateTag(propertyTag, 1); // Simulate validateTag returning true
+
+    let result = computedProperty.get(obj, keyName);
+    assert.equal(result, 'testValue', 'Expected value should be returned');
+  });
+
+  test('get method - CT4', function(assert) {
+    let obj = EmberObject.create();
+    let keyName = 'testKey';
+    let computedProperty = new ComputedProperty(function() {
+      return 'testValue';
+    });
+
+    // Simulate conditions for CT4
+    let meta = metaFor(obj);
+    meta.setRevisionFor(keyName, undefined);
+    computedProperty._dependentKeys = ['depKey'];
+
+    let propertyTag = tagFor(obj, keyName, tagMetaFor(obj));
+    validateTag(propertyTag, 0); // Simulate validateTag returning false
+
+    let result = computedProperty.get(obj, keyName);
+    assert.equal(result, 'testValue', 'Expected value should be returned');
+  });
+
+  test('get method - CT5', function(assert) {
+    let obj = EmberObject.create();
+    let keyName = 'testKey';
+    let computedProperty = new ComputedProperty(function() {
+      return ['testValue'];
+    });
+
+    // Simulate conditions for CT5
+    let meta = metaFor(obj);
+    meta.setRevisionFor(keyName, undefined);
+    computedProperty._dependentKeys = undefined;
+
+    let propertyTag = tagFor(obj, keyName, tagMetaFor(obj));
+    validateTag(propertyTag, 0); // Simulate validateTag returning false
+
+    let result = computedProperty.get(obj, keyName);
+    assert.deepEqual(result, ['testValue'], 'Expected value should be returned');
+  });
+});

packages/@ember/-internals/package.json

@@ -5,6 +5,8 @@
   "type": "module",
   "private": true,
   "exports": {
+    "./metal/lib/computed": "./metal/lib/computed.js",
+    "./metal/lib/tags": "./metal/lib/tags.js",
     "./browser-environment": "./browser-environment/index.ts",
     "./container": "./container/index.ts",
     "./environment": "./environment/index.ts",
@@ -70,4 +72,6 @@
   "devDependencies": {
     "@ember/template-compiler": "workspace:*"
   }
+
 }
+