Implemented excersices

Author: arzola

src/People.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace App;
+
+use Iterator;
+
+/*
+ * Ejercicio
+ * Implementar el código faltante en la clase People para que el código de ejemplo funcione
+ * TIP: Iterator es una interfaz
+ * TIP: Métodos mágicos
+ */
+
+/* POWER TIP Pueden extender la clase con otras clases o interfaces */
+
+class People implements Iterator
+{
+    private $name;
+    private $age;
+    private $salary;
+    private $attrs;
+    private $current = 3;
+
+    public function __construct($name, $age, $salary)
+    {
+        $this->name = $name;
+        $this->age = $age;
+        $this->salary = $salary;
+    }
+
+    public function current()
+    {
+        return array_values($this->attrs[$this->current])[0];
+    }
+
+    public function key()
+    {
+        return array_keys($this->attrs[$this->current])[0];
+    }
+
+    public function valid()
+    {
+        return isset($this->attrs[$this->current]);
+    }
+
+    public function __toString()
+    {
+        return json_encode([
+            'private' => '',
+            'public' => ''
+        ]);
+    }
+
+}

src/helpers.php

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+<?php
+
+function ajax($url, $callback)
+{
+    
+}

tests/AjaxCallbackTest.php

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+<?php
+
+use PHPUnit\Framework\TestCase;
+
+class AjaxCallbackTest extends TestCase
+{
+    public function test_if_ajax_callback_is_defined()
+    {
+        ajax('https://jsonip.com', function ($data) {
+            $this->assertTrue($data['success']);
+            $this->assertStringStartsWith('{"ip',$data['data']);
+        });
+    }
+}

tests/PeopleTest.php

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+<?php
+
+use App\People;
+use PHPUnit\Framework\TestCase;
+
+class PeopleTest extends TestCase
+{
+    private $people;
+    private $randomWord;
+
+    protected function setUp()
+    {
+        parent::setUp();
+        $this->people = new People('Oscar', 33, 10);
+        $this->randomWord = uniqid('randomMethod', false);
+        $this->people->{$this->randomWord} = 'lol'; //Agregando una nueva propiedad pública
+        $this->people->fino = true; //Agregando una nueva propiedad pública
+    }
+
+    public function test_if_private_variables_cannot_be_overriden()
+    {
+        $this->people->name = 'Mauricio'; //Intentando cambiar un atributo privado
+        $this->people->age = 22;  //Intentando cambiar un atributo privado
+        $this->people->salary = 33;  //Intentando cambiar un atributo privado
+        $this->assertEquals('Oscar', $this->people->name);
+        $this->assertEquals(33, $this->people->age);
+        $this->assertEquals(10, $this->people->salary);
+    }
+
+    public function test_if_custom_public_variables_are_stored()
+    {
+        $this->assertEquals('Oscar', $this->people->name);
+        $this->assertEquals('lol', $this->people->{$this->randomWord});
+    }
+
+    public function test_if_iterator_only_return_custom_public_variables()
+    {
+        foreach ($this->people as $key => $val) { //Acceder a las propiedades "públicas" únicamente al iterar el objeto
+            $keys[] = $key;
+            $values[] = $val;
+        }
+        $this->assertEquals($this->randomWord, $keys[0]);
+        $this->assertEquals('fino', $keys[1]);
+        $this->assertEquals('lol', $values[0]);
+        $this->assertEquals(1, $values[1]);
+    }
+
+    public function test_if_string_object_prints_all_signature()
+    {
+        $this->assertEquals('{"private":{"name":"Oscar","age":33,"salary":10},"public":[{"' . $this->randomWord . '":"lol"},{"fino":true}]}',
+            (string)$this->people);
+    }
+}