add examples.

Author: smeghead

test/fixtures/example/Example1.php

@@ -0,0 +1,26 @@
+<?php
+
+/** ローカル変数酷使度: 131 */
+function createCsvLine1($values) {
+    $result = "";
+    $count = count($values);
+
+    for ($i = 0; $i < $count; $i++) {
+        $value = $values[$i];
+
+        // 文字列なら " で囲む
+        if (is_string($value)) {
+            $formattedValue = '"' . $value . '"';
+        } else {
+            $formattedValue = $value;
+        }
+
+        if ($i == 0) {
+            $result .= $formattedValue;
+        } else {
+            $result .= "," . $formattedValue;
+        }
+    }
+
+    return $result;
+}

test/fixtures/example/Example2.php

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+<?php
+
+/** ローカル変数酷使度: 106 */
+function createCsvLine2($values) {
+    $result = "";
+
+    foreach ($values as $value) {
+        // 文字列なら " で囲む
+        if (is_string($value)) {
+            $formattedValue = '"' . $value . '"';
+        } else {
+            $formattedValue = $value;
+        }
+
+        if (empty($result)) {
+            $result .= $formattedValue;
+        } else {
+            $result .= "," . $formattedValue;
+        }
+    }
+
+    return $result;
+}

test/fixtures/example/Example3.php

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+<?php
+
+/** ローカル変数酷使度: 45 */
+function createCsvLine3($values) {
+    $columns = [];
+
+    foreach ($values as $value) {
+        // 文字列なら " で囲む
+        if (is_string($value)) {
+            $formattedValue = '"' . $value . '"';
+        } else {
+            $formattedValue = $value;
+        }
+
+        $columns[] = $formattedValue;
+    }
+
+    return implode(',', $columns);
+}

test/fixtures/example/Example4.php

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+<?php
+
+/** ローカル変数酷使度: 15 */
+function createCsvLine4($values) {
+    $columns = [];
+
+    foreach ($values as $value) {
+        $columns[] = is_string($value) ? '"' . $value . '"' : $value;;
+    }
+
+    return implode(',', $columns);
+}

test/fixtures/example/Example5.php

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+<?php
+
+/** ローカル変数酷使度: 6 + 3 = 9 */
+function createCsvLine5($values) {
+    return implode(',', array_map(function ($value) {
+        return is_string($value) ? '"' . $value . '"' : $value;
+    }, $values));
+}

test/fixtures/example/ExampleTest.php

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+<?php
+
+declare(strict_types=1);
+
+use PHPUnit\Framework\TestCase;
+
+require_once __DIR__ . '/Example1.php';
+require_once __DIR__ . '/Example2.php';
+require_once __DIR__ . '/Example3.php';
+require_once __DIR__ . '/Example4.php';
+require_once __DIR__ . '/Example5.php';
+
+class ExampleTest extends TestCase
+{
+    public function testCreateCsvLine1(): void
+    {
+        $this->assertSame('', createCsvLine1([]));
+        $this->assertSame('1,2,3', createCsvLine1([1, 2, 3]));
+        $this->assertSame('1,2,"helo"', createCsvLine1([1, 2, "helo"]));
+    }
+
+    public function testCreateCsvLine2(): void
+    {
+        $this->assertSame('', createCsvLine2([]));
+        $this->assertSame('1,2,3', createCsvLine2([1, 2, 3]));
+        $this->assertSame('1,2,"helo"', createCsvLine2([1, 2, "helo"]));
+    }
+
+    public function testCreateCsvLine3(): void
+    {
+        $this->assertSame('', createCsvLine3([]));
+        $this->assertSame('1,2,3', createCsvLine3([1, 2, 3]));
+        $this->assertSame('1,2,"helo"', createCsvLine3([1, 2, "helo"]));
+    }
+
+    public function testCreateCsvLine4(): void
+    {
+        $this->assertSame('', createCsvLine4([]));
+        $this->assertSame('1,2,3', createCsvLine4([1, 2, 3]));
+        $this->assertSame('1,2,"helo"', createCsvLine4([1, 2, "helo"]));
+    }
+
+    public function testCreateCsvLine5(): void
+    {
+        $this->assertSame('', createCsvLine5([]));
+        $this->assertSame('1,2,3', createCsvLine5([1, 2, 3]));
+        $this->assertSame('1,2,"helo"', createCsvLine5([1, 2, "helo"]));
+    }
+}