From 1255acfa93d2b18de6d6953b99c8fb0b603a2e1c Mon Sep 17 00:00:00 2001
From: Elliott Allmann <elliott.allmann@cox.net>
Date: Tue, 21 Feb 2023 18:06:45 -0800
Subject: [PATCH] 100% code coverage through unit tests

---
 php/src/GildedRose.php       |   5 +
 php/tests/GildedRoseTest.php | 398 ++++++++++++++++++++++++++++++++++-
 2 files changed, 398 insertions(+), 5 deletions(-)

diff --git a/php/src/GildedRose.php b/php/src/GildedRose.php
index db81ee3b..54d554df 100644
--- a/php/src/GildedRose.php
+++ b/php/src/GildedRose.php
@@ -14,6 +14,11 @@ final class GildedRose
     ) {
     }
 
+    public function getItems(): array
+    {
+        return $this->items;
+    }
+
     public function updateQuality(): void
     {
         foreach ($this->items as $item) {
diff --git a/php/tests/GildedRoseTest.php b/php/tests/GildedRoseTest.php
index 52e7ddc6..a501b005 100644
--- a/php/tests/GildedRoseTest.php
+++ b/php/tests/GildedRoseTest.php
@@ -10,11 +10,399 @@ use PHPUnit\Framework\TestCase;
 
 class GildedRoseTest extends TestCase
 {
-    public function testFoo(): void
-    {
-        $items = [new Item('foo', 0, 0)];
+
+    /* -- FUNCTION TEMPLATE COPY ME --
+     public function testFoo(): void
+     {
+        echo ("Starting " . __FUNCTION__ . PHP_EOL);
+        $items = [];
+
         $gildedRose = new GildedRose($items);
         $gildedRose->updateQuality();
-        $this->assertSame('fixme', $items[0]->name);
-    }
+
+     } // END TestFoo()
+     */
+
+    public function testSellInValueDegradesOverTime(): void
+    {
+        echo ("Starting " . __FUNCTION__ . PHP_EOL);
+
+        $name = 'Foo';
+        $quality = 10;
+        $sellIn = 10;
+
+        $items = [
+            new Item($name, $sellIn, $quality),
+        ];
+
+        $gildedRose = new GildedRose($items);
+        $setItems = $gildedRose->getItems();
+
+        // Make sure the data is the same as we insert
+        $this->assertSame($name, $setItems[0]->name);
+        $this->assertSame($sellIn, $setItems[0]->sellIn);
+        $this->assertSame($quality, $setItems[0]->quality);
+
+        // Update the items
+        $gildedRose->updateQuality();
+        $updatedItems = $gildedRose->getItems();
+
+        $this->assertSame(($sellIn - 1), $updatedItems[0]->sellIn);
+
+
+    } // END testSellInValueDegradesOverTime()
+
+    public function testStdQualityValueDegradesOverTime(): void
+    {
+        echo ("Starting " . __FUNCTION__ . PHP_EOL);
+
+        $name = 'Foo';
+        $quality = 10;
+        $sellIn = 10;
+
+        $items = [
+            new Item($name, $sellIn, $quality),
+        ];
+
+        $gildedRose = new GildedRose($items);
+        $setItems = $gildedRose->getItems();
+
+        // Make sure the data is the same as we insert
+        $this->assertSame($name, $setItems[0]->name);
+        $this->assertSame($sellIn, $setItems[0]->sellIn);
+        $this->assertSame($quality, $setItems[0]->quality);
+
+        // Update the items
+        $gildedRose->updateQuality();
+        $updatedItems = $gildedRose->getItems();
+
+        $this->assertSame(($quality - 1), $updatedItems[0]->quality);
+    } // END testStdQualityValueDegradesOverTime()
+
+    public function testAgedBrieQualityIncreaseOverTime(): void
+    {
+        echo ("Starting " . __FUNCTION__ . PHP_EOL);
+
+        $name = "Aged Brie";
+        $sellIn = 10;
+        $quality = 10;
+
+        $items = [
+            new Item($name, $sellIn, $quality),
+        ];
+
+        $gildedRose = new GildedRose($items);
+        $setItems = $gildedRose->getItems();
+        $this->assertSame($name, $setItems[0]->name);
+        $this->assertSame($sellIn, $setItems[0]->sellIn);
+        $this->assertSame($quality, $setItems[0]->quality);
+
+        $gildedRose->updateQuality();
+        $updatedItems = $gildedRose->getItems();
+
+        $this->assertSame($name, $updatedItems[0]->name);
+        $this->assertSame(($sellIn - 1), $updatedItems[0]->sellIn);
+        $this->assertSame(($quality + 1), $updatedItems[0]->quality);
+    } // END testAgedBrieQualityIncreaseOverTime()
+
+    public function testAgedBrieQualityIncreasePastSellInButUnderMax(): void
+    {
+        echo ("Starting " . __FUNCTION__ . PHP_EOL);
+
+        $name = "Aged Brie";
+        $sellIn = 10;
+        $quality = 38;
+
+        $items = [
+            new Item($name, $sellIn, $quality),
+        ];
+
+        $gildedRose = new GildedRose($items);
+
+        $updatedItems = [];
+        $previousQuality = $quality;
+
+        for($i = 0; $i < $sellIn; $i++)
+        {
+            $gildedRose->updateQuality();
+            $updatedItems = $gildedRose->getItems();
+            $this->assertSame(($previousQuality + 1), $updatedItems[0]->quality);
+            $previousQuality = $updatedItems[0]->quality;
+        }
+
+        $this->assertSame(0, $updatedItems[0]->sellIn);
+
+        // Past the sell-in date
+        for($i = 0; $i < 5; $i++)
+        {
+            $gildedRose->updateQuality();
+            $updatedItems = $gildedRose->getItems();
+            $this->assertLessThanOrEqual( $updatedItems[0]->quality, $previousQuality);
+            $this->assertLessThanOrEqual(50, $updatedItems[0]->quality);
+            $previousQuality = $updatedItems[0]->quality;
+        }
+
+
+
+    } // END testAgedBrieQualityIncreaseOverTime()
+
+    public function testItemQualityNeverOver50(): void
+    {
+        echo ("Starting " . __FUNCTION__ . PHP_EOL);
+
+        $name = "Aged Brie";
+        $sellIn = 10;
+        $quality = 45;
+
+        $items = [
+            new Item($name, $sellIn, $quality),
+        ];
+
+        $gildedRose = new GildedRose($items);
+        $gildedRose->updateQuality();
+
+        for($i = 0; $i < $sellIn; $i++)
+        {
+            $updatedItems = $gildedRose->getItems();
+            $this->assertSame($name, $updatedItems[0]->name);
+            $this->assertLessThanOrEqual(50, $updatedItems[0]->quality);
+            $gildedRose->updateQuality();
+        }
+
+
+    } // END testItemQualityNeverOver50()
+
+    public function testStdItemQualityNeverNegative(): void
+    {
+        echo ("Starting " . __FUNCTION__ . PHP_EOL);
+
+        $name = 'foo';
+        $sellIn = 10;
+        $quality = 5;
+
+        $items = [
+            new Item($name, $sellIn, $quality),
+        ];
+
+        $gildedRose = new GildedRose($items);
+        $gildedRose->updateQuality();
+
+        for($i = 0; $i < $sellIn; $i++)
+        {
+            $updatedItems = $gildedRose->getItems();
+            $this->assertSame($name, $updatedItems[0]->name);
+            $this->assertGreaterThanOrEqual(0, $updatedItems[0]->quality);
+            $gildedRose->updateQuality();
+        }
+
+    } // END testStdItemQualityNeverNegative()
+
+    public function testStdItemQualityDegradesTwiceAsFastPastSellIn(): void
+    {
+        echo ("Starting " . __FUNCTION__ . PHP_EOL);
+
+        $name = 'foo';
+        $sellIn = 10;
+        $quality = 20;
+
+        $items = [
+            new Item($name, $sellIn, $quality),
+        ];
+
+        $gildedRose = new GildedRose($items);
+
+        $previousQuality = $quality;
+
+        $updatedItems = [];
+        for($i = 0; $i < $sellIn; $i++)
+        {
+            $gildedRose->updateQuality();
+            $updatedItems = $gildedRose->getItems();
+            $this->assertSame(($previousQuality - 1), $updatedItems[0]->quality);
+            $previousQuality = $updatedItems[0]->quality;
+        }
+
+        $this->assertSame(0, $updatedItems[0]->sellIn);
+
+        for($i = 0; $i < 3; $i++)
+        {
+            $gildedRose->updateQuality();
+            $updatedItems = $gildedRose->getItems();
+            $this->assertSame(($previousQuality - 2), $updatedItems[0]->quality);
+            $previousQuality = $updatedItems[0]->quality;
+        }
+
+    } // END testStdItemQualityDegradesTwiceAsFastPastSellIn()
+
+    public function testSulfurasValuesNeverChange(): void
+    {
+        echo ("Starting " . __FUNCTION__ . PHP_EOL);
+
+        $name = 'Sulfuras, Hand of Ragnaros';
+        $sellIn = 10;
+        $quality = 80;
+
+        $items = [
+            new Item($name, $sellIn, $quality),
+        ];
+
+        $gildedRose = new GildedRose($items);
+
+        $setItems = $gildedRose->getItems();
+
+        // Make sure the data is the same as we insert
+        $this->assertSame($name, $setItems[0]->name);
+        $this->assertSame($sellIn, $setItems[0]->sellIn);
+        $this->assertSame($quality, $setItems[0]->quality);
+
+        $gildedRose->updateQuality();
+
+        $updatedItems = $gildedRose->getItems();
+        $this->assertSame($name, $updatedItems[0]->name);
+        $this->assertSame($sellIn, $updatedItems[0]->sellIn);
+        $this->assertSame($quality, $updatedItems[0]->quality);
+
+    } // END testSulfurasValuesNeverChange()
+
+    public function testBackstagePassQualityIncreaseStandard(): void
+    {
+        echo ("Starting " . __FUNCTION__ . PHP_EOL);
+
+        $name = 'Backstage passes to a TAFKAL80ETC concert';
+        $sellIn = 15;
+        $quality = 10;
+
+        $items = [
+            new Item($name, $sellIn, $quality),
+        ];
+
+        $gildedRose = new GildedRose($items);
+
+        $setItems = $gildedRose->getItems();
+
+        // Make sure the data is the same as we insert
+        $this->assertSame($name, $setItems[0]->name);
+        $this->assertSame($sellIn, $setItems[0]->sellIn);
+        $this->assertSame($quality, $setItems[0]->quality);
+
+        $gildedRose->updateQuality();
+
+        $updatedItems = $gildedRose->getItems();
+        $this->assertSame($name, $updatedItems[0]->name);
+        $this->assertSame(($sellIn -1), $updatedItems[0]->sellIn);
+        $this->assertSame(($quality + 1), $updatedItems[0]->quality);
+    } // END testBackstagePassQualityIncreaseStandard()
+
+    public function testBackstagePassQualityIncreaseBy2Within10Days(): void
+    {
+        echo ("Starting " . __FUNCTION__ . PHP_EOL);
+
+        $name = 'Backstage passes to a TAFKAL80ETC concert';
+        $sellIn = 11;
+        $quality = 10;
+
+        $items = [
+            new Item($name, $sellIn, $quality),
+        ];
+
+        $gildedRose = new GildedRose($items);
+
+        $setItems = $gildedRose->getItems();
+
+        // 11 days before
+        $this->assertSame($name, $setItems[0]->name);
+        $this->assertSame($sellIn, $setItems[0]->sellIn);
+        $this->assertSame($quality, $setItems[0]->quality);
+
+        $gildedRose->updateQuality();
+
+        //10 days before
+        $updatedItems = $gildedRose->getItems();
+        $this->assertSame($name, $updatedItems[0]->name);
+        $this->assertSame(($sellIn -1), $updatedItems[0]->sellIn);
+        $this->assertSame(($quality + 1), $updatedItems[0]->quality);
+
+        $gildedRose->updateQuality();
+
+        // 9 days before
+        $updatedItems = $gildedRose->getItems();
+        $this->assertSame($name, $updatedItems[0]->name);
+        $this->assertSame(($sellIn -2), $updatedItems[0]->sellIn);
+        $this->assertSame(($quality + 3), $updatedItems[0]->quality);
+    } // END testBackstagePassQualityIncreaseBy2Within10Days()
+
+    public function testBackstagePassQualityIncreaseBy3Within5Days(): void
+    {
+        echo ("Starting " . __FUNCTION__ . PHP_EOL);
+
+        $name = 'Backstage passes to a TAFKAL80ETC concert';
+        $sellIn = 6;
+        $quality = 10;
+
+        $items = [
+            new Item($name, $sellIn, $quality),
+        ];
+
+        $gildedRose = new GildedRose($items);
+
+        $setItems = $gildedRose->getItems();
+
+        // 6 days before
+        $this->assertSame($name, $setItems[0]->name);
+        $this->assertSame($sellIn, $setItems[0]->sellIn);
+        $this->assertSame($quality, $setItems[0]->quality);
+        $gildedRose->updateQuality();
+
+        //5 days before
+        $updatedItems = $gildedRose->getItems();
+        $this->assertSame($name, $updatedItems[0]->name);
+        $this->assertSame(($sellIn -1), $updatedItems[0]->sellIn);
+        $this->assertSame(($quality + 2), $updatedItems[0]->quality);
+
+        $gildedRose->updateQuality();
+
+        // 4 days before
+        $updatedItems = $gildedRose->getItems();
+        $this->assertSame($name, $updatedItems[0]->name);
+        $this->assertSame(($sellIn -2), $updatedItems[0]->sellIn);
+        $this->assertSame(($quality + 5), $updatedItems[0]->quality);
+    } // END testBackstagePassQualityIncreaseBy3Within5Days()
+
+    public function testBackstagePassQualityIs0AfterConcert(): void
+    {
+        echo ("Starting " . __FUNCTION__ . PHP_EOL);
+
+        $name = 'Backstage passes to a TAFKAL80ETC concert';
+        $sellIn = 1;
+        $quality = 10;
+
+        $items = [
+            new Item($name, $sellIn, $quality),
+        ];
+
+        $gildedRose = new GildedRose($items);
+
+        $setItems = $gildedRose->getItems();
+
+        // 1 days before
+        $this->assertSame($name, $setItems[0]->name);
+        $this->assertSame($sellIn, $setItems[0]->sellIn);
+        $this->assertSame($quality, $setItems[0]->quality);
+        $gildedRose->updateQuality();
+
+        //0 days before
+        $updatedItems = $gildedRose->getItems();
+        $this->assertSame($name, $updatedItems[0]->name);
+        $this->assertSame(($sellIn -1), $updatedItems[0]->sellIn);
+        $this->assertSame(($quality + 3), $updatedItems[0]->quality);
+
+        $gildedRose->updateQuality();
+
+        // 1 days after
+        $updatedItems = $gildedRose->getItems();
+        $this->assertSame($name, $updatedItems[0]->name);
+        $this->assertSame(($sellIn -2), $updatedItems[0]->sellIn);
+        $this->assertSame(0, $updatedItems[0]->quality);
+    } // END testBackstagePassQualityIs0AfterConcert()
+
 }