|
@@ -0,0 +1,103 @@
|
|
|
+<?php
|
|
|
+
|
|
|
+/*
|
|
|
+ * By adding type hints and enabling strict type checking, code can become
|
|
|
+ * easier to read, self-documenting and reduce the number of potential bugs.
|
|
|
+ * By default, type declarations are non-strict, which means they will attempt
|
|
|
+ * to change the original type to match the type specified by the
|
|
|
+ * type-declaration.
|
|
|
+ *
|
|
|
+ * In other words, if you pass a string to a function requiring a float,
|
|
|
+ * it will attempt to convert the string value to a float.
|
|
|
+ *
|
|
|
+ * To enable strict mode, a single declare directive must be placed at the top
|
|
|
+ * of the file.
|
|
|
+ * This means that the strictness of typing is configured on a per-file basis.
|
|
|
+ * This directive not only affects the type declarations of parameters, but also
|
|
|
+ * a function's return type.
|
|
|
+ *
|
|
|
+ * For more info review the Concept on strict type checking in the PHP track
|
|
|
+ * <link>.
|
|
|
+ *
|
|
|
+ * To disable strict typing, comment out the directive below.
|
|
|
+ */
|
|
|
+
|
|
|
+declare(strict_types=1);
|
|
|
+
|
|
|
+class LuhnTest extends PHPUnit\Framework\TestCase
|
|
|
+{
|
|
|
+ public static function setUpBeforeClass(): void
|
|
|
+ {
|
|
|
+ require_once 'Luhn.php';
|
|
|
+ }
|
|
|
+
|
|
|
+ public function testSingleDigitInvalid(): void
|
|
|
+ {
|
|
|
+ $this->assertFalse(isValid("1"));
|
|
|
+ }
|
|
|
+
|
|
|
+ public function testSingleZeroInvalid(): void
|
|
|
+ {
|
|
|
+ $this->assertFalse(isValid("0"));
|
|
|
+ }
|
|
|
+
|
|
|
+ public function testSimpleValidNumber(): void
|
|
|
+ {
|
|
|
+ $this->assertTrue(isValid("59"));
|
|
|
+ }
|
|
|
+
|
|
|
+ public function testSpaceHandling(): void
|
|
|
+ {
|
|
|
+ $this->assertTrue(isValid(" 5 9 "));
|
|
|
+ }
|
|
|
+
|
|
|
+ public function testValidCanadianSocialInsuranceNumber(): void
|
|
|
+ {
|
|
|
+ $this->assertTrue(isValid("046 454 286"));
|
|
|
+ }
|
|
|
+
|
|
|
+ public function testInvalidCanadianSocialInsuranceNumber(): void
|
|
|
+ {
|
|
|
+ $this->assertFalse(isValid("046 454 287"));
|
|
|
+ }
|
|
|
+
|
|
|
+ public function testInvalidCreditCard(): void
|
|
|
+ {
|
|
|
+ $this->assertFalse(isValid("8273 1232 7352 0569"));
|
|
|
+ }
|
|
|
+
|
|
|
+ public function testNonDigitCharacterInValidStringInvalidatesTheString(): void
|
|
|
+ {
|
|
|
+ $this->assertFalse(isValid("046a 454 286"));
|
|
|
+ }
|
|
|
+
|
|
|
+ public function testThatStringContainingSymbolsIsInvalid(): void
|
|
|
+ {
|
|
|
+ $this->assertFalse(isValid("055£ 444$ 285"));
|
|
|
+ }
|
|
|
+
|
|
|
+ public function testThatStringContainingPunctuationIsInvalid(): void
|
|
|
+ {
|
|
|
+ $this->assertFalse(isValid("055-444-285"));
|
|
|
+ }
|
|
|
+
|
|
|
+ public function testSpaceAndSingleZeroIsInvalid(): void
|
|
|
+ {
|
|
|
+ $this->assertFalse(isValid(" 0"));
|
|
|
+ }
|
|
|
+
|
|
|
+ public function testMultipleZerosIsValid(): void
|
|
|
+ {
|
|
|
+ $this->assertTrue(isValid(" 00000"));
|
|
|
+ }
|
|
|
+
|
|
|
+ public function testThatDoublingNineIsHandledCorrectly(): void
|
|
|
+ {
|
|
|
+ $this->assertTrue(isValid("091"));
|
|
|
+ }
|
|
|
+
|
|
|
+ public function testThatStringContainingSymbolsWhichCouldBeZeroIsInvalid(): void
|
|
|
+ {
|
|
|
+ $this->assertFalse(isValid(" ABCDEF"));
|
|
|
+ }
|
|
|
+}
|