Swap empty with explicit string comparison

src/Artisan/stubs/value-object.stub

@@ -67,7 +67,7 @@ class {{ class }} extends ValueObject
  {
  // TODO: Implement validate() method.
 
- if (empty($this->value())) {
+ if ($this->value() === '') {
  throw ValidationException::withMessages(['Value of {{ class }} cannot be empty.']);
  }
  }

src/Collection/Complex/ClassString.php

@@ -114,7 +114,7 @@ public function value(): string
  */
  protected function validate(): void
  {
- if (empty($this->value())) {
+ if ($this->value() === '') {
  throw ValidationException::withMessages(['Class string cannot be empty.']);
  }
  }

src/Collection/Complex/FullName.php

@@ -102,7 +102,7 @@ public function toArray(): array
  */
  protected function validate(): void
  {
- if (empty($this->value())) {
+ if ($this->value() === '') {
  throw ValidationException::withMessages(['Full name cannot be empty.']);
  }
 

src/Collection/Complex/TaxNumber.php

@@ -141,7 +141,7 @@ public function toArray(): array
  */
  protected function validate(): void
  {
- if (empty($this->value())) {
+ if ($this->value() === '') {
  throw ValidationException::withMessages(['Tax number cannot be empty.']);
  }
  }

src/Collection/Primitive/Text.php

@@ -74,7 +74,7 @@ public function value(): string
  */
  protected function validate(): void
  {
- if (empty($this->value())) {
+ if ($this->value() === '') {
  throw new InvalidArgumentException('Text cannot be empty.');
  }
  }