test(guardBoolean): add

Author: sciborrudnicki

packages/type/src/guard/test/guard-boolan.spec.ts

@@ -0,0 +1,29 @@
+// Function.
+import { guardBoolean } from '../lib/guard-boolean.func';
+// Variables.
+import { FALSE_EXPECTATION, TRUE, TRUE_EXPECTATION, FALSE } from './variables/boolean.const';
+
+describe(guardBoolean.name, () => {
+  // Defined.
+  it('is DEFINED', () => expect(guardBoolean).toBeDefined());
+
+  // Checks ...
+  describe(`checks`, () => {
+    it('callback', () => {
+      guardBoolean(TRUE, (result: boolean, value: boolean) => {
+        expect(result).toBe(TRUE);
+        expect(value).toEqual(TRUE);
+        return result;
+      });
+    });
+
+    // ... primitives.
+    describe(`primitive`, () => {
+      // boolean
+      describe(`boolean`, () => {
+        it(`${FALSE_EXPECTATION}`, () => expect(guardBoolean(FALSE)).toBe(TRUE));
+        it(`${TRUE_EXPECTATION}`, () => expect(guardBoolean(TRUE)).toBe(TRUE));
+      });
+    });
+  });
+});