refactor: Still trying to reorganize edit mode to be more robust

test_runner.js

@@ -65,7 +65,7 @@ class TestRunner {
     }
 
     expect(actual) {
-        return {
+        const expectObj = {
             toBe: (expected) => {
                 if (actual !== expected) {
                     throw new Error(`Expected ${expected}, got ${actual}`);
@@ -85,8 +85,49 @@ class TestRunner {
                 if (actual) {
                     throw new Error(`Expected falsy value, got ${actual}`);
                 }
+            },
+            toBeGreaterThan: (expected) => {
+                if (actual <= expected) {
+                    throw new Error(`Expected ${actual} to be greater than ${expected}`);
+                }
+            },
+            toBeGreaterThanOrEqual: (expected) => {
+                if (actual < expected) {
+                    throw new Error(`Expected ${actual} to be greater than or equal to ${expected}`);
+                }
+            },
+            toBeLessThan: (expected) => {
+                if (actual >= expected) {
+                    throw new Error(`Expected ${actual} to be less than ${expected}`);
+                }
             }
         };
+
+        // Add 'not' property for negation
+        expectObj.not = {
+            toBe: (expected) => {
+                if (actual === expected) {
+                    throw new Error(`Expected ${actual} not to be ${expected}`);
+                }
+            },
+            toContain: (expected) => {
+                if (actual.includes(expected)) {
+                    throw new Error(`Expected "${actual}" not to contain "${expected}"`);
+                }
+            },
+            toBeTruthy: () => {
+                if (actual) {
+                    throw new Error(`Expected falsy value, got ${actual}`);
+                }
+            },
+            toBeFalsy: () => {
+                if (!actual) {
+                    throw new Error(`Expected truthy value, got ${actual}`);
+                }
+            }
+        };
+
+        return expectObj;
     }
 }