docs(test): fix comment from variables to constant

Author: sciborrudnicki

src/guard/test/guard-array.spec.ts

@@ -1,6 +1,6 @@
 // Function.
 import { guardArray } from '../lib/guard-array.func';
-// Variables.
+// Constant.
 import {
   ARRAY_BIGINT,
   ARRAY_BOOLEAN,

src/guard/test/guard-bigint.spec.ts

@@ -1,6 +1,6 @@
 // Function.
 import { guardBigInt } from '../lib/guard-big-int.func';
-// Variables.
+// Constant.
 import { BIGINT, BIGINT_EXPECTATION, BIGINT_INSTANCE } from '../../testing/variables/strict/big-int.const';
 import { TRUE } from '../../testing/variables/strict/boolean.const';
 

src/guard/test/guard-boolean.spec.ts

@@ -1,6 +1,6 @@
 // Function.
 import { guardBoolean } from '../lib/guard-boolean.func';
-// Variables.
+// Constant.
 import { FALSE_EXPECTATION, TRUE, TRUE_EXPECTATION, FALSE, TRUE_INSTANCE, FALSE_INSTANCE } from '../../testing/variables/strict/boolean.const';
 
 describe(guardBoolean.name, () => {

src/guard/test/guard-class.spec.ts

@@ -2,13 +2,15 @@
 import { guard } from '../lib/guard.object';
 // Function.
 import { guardClass } from '../lib/guard-class.func';
-// Variables.
-import { Person } from '../../testing/variables/strict/class.const';
+// Constant.
+import { Persons } from '../../testing/variables/strict/class.const';
 import { TRUE } from '../../testing/variables/strict/boolean.const';
 
 describe(guardClass.name, () => {
   // TRUE
   it('is DEFINED', () => expect(guardClass).toBeDefined());
-  it(`Class`, () => expect(guardClass(Person)).toBe(TRUE));
-  it(`Class`, () => expect(guard.is.class(Person)).toBe(TRUE));
+  it(`Class`, () => {
+    expect(guardClass(Persons)).toBe(TRUE);
+    expect(guard.is.class(Persons)).toBe(TRUE);
+  });
 });

src/guard/test/guard-defined.spec.ts

@@ -1,6 +1,6 @@
 // Function.
 import { guardDefined } from '../lib/guard-defined.func';
-// Variables.
+// Constant.
 import { STRING } from '../../testing/variables/strict/string.const';
 import { TRUE } from '../../testing/variables/strict/boolean.const';
 

src/guard/test/guard-function.spec.ts

@@ -1,6 +1,6 @@
 // Function.
 import { guardFunction } from '../lib/guard-function.func';
-// Variables.
+// Constant.
 import { FUNCTION } from '../../testing/variables/function.const';
 
 describe(guardFunction.name, () => {

src/guard/test/guard-key.spec.ts

@@ -1,6 +1,6 @@
 // Function.
 import { guardKey } from '../lib/guard-key.func';
-// Variables.
+// Constant.
 import { NUMBER } from '../../testing/variables/strict/number.const';
 import { STRING} from '../../testing/variables/strict/string.const';
 import { SYMBOL_NUMBER, SYMBOL_STRING } from '../../testing/variables/strict/symbol.const';

src/guard/test/guard-null.spec.ts

@@ -1,6 +1,6 @@
 // Function.
 import { guardNull } from '../lib/guard-null.func';
-// Variables.
+// Constant.
 import { NULL } from '../../testing/variables/strict/null.const';
 import { TRUE } from '../../testing/variables/strict/boolean.const';
 

src/guard/test/guard-number.spec.ts

@@ -1,6 +1,6 @@
 // Function.
 import { guardNumber } from '../lib/guard-number.func';
-// Variables.
+// Constant.
 import { NUMBER } from '../../testing/variables/strict/number.const';
 import { TRUE } from '../../testing/variables/strict/boolean.const';
 

src/guard/test/guard-object-key.spec.ts

@@ -1,6 +1,6 @@
 // Function.
 import { guardObjectKey } from '../lib/guard-object-key.func';
-// Variables.
+// Constant.
 import { CLASS, TEST_CLASS, TestClass } from '../../testing/variables/strict/class.const';
 import { NUMBER } from '../../testing/variables/number.const';
 import { OBJECT_ONE } from '../../testing/variables/object.const';