Fixes #13. Implemented Ely\multiline_if_statement_braces fixer

tests/Fixer/Whitespace/MultilineIfStatementBracesFixerTest.php

@@ -0,0 +1,68 @@
+<?php
+declare(strict_types=1);
+
+namespace Ely\CS\Test\Fixer\Whitespace;
+
+use Ely\CS\Fixer\Whitespace\MultilineIfStatementBracesFixer;
+use PhpCsFixer\AbstractFixer;
+use PhpCsFixer\Tests\Test\AbstractFixerTestCase;
+
+/**
+ * @covers \Ely\CS\Fixer\Whitespace\MultilineIfStatementBracesFixer
+ */
+class MultilineIfStatementBracesFixerTest extends AbstractFixerTestCase {
+
+    /**
+     * @dataProvider provideFixCases
+     */
+    public function testFixOnNewLine(string $expected, ?string $input = null): void {
+        $this->doTest($expected, $input);
+    }
+
+    public function provideFixCases(): iterable {
+        yield 'simple' => [
+            '<?php
+if ($condition1
+ && $condition2
+) {}',
+            '<?php
+if ($condition1
+ && $condition2) {}',
+        ];
+
+        yield 'nested' => [
+            '<?php
+function foo() {
+    if ($condition1
+     && $condition2
+    ) {}
+}',
+            '<?php
+function foo() {
+    if ($condition1
+     && $condition2) {}
+}',
+        ];
+    }
+
+    /**
+     * @dataProvider provideInvertedFixCases
+     */
+    public function testFixOnSameLine(string $expected, ?string $input = null): void {
+        $this->fixer->configure([
+            MultilineIfStatementBracesFixer::C_KEEP_ON_OWN_LINE => false,
+        ]);
+        $this->doTest($expected, $input);
+    }
+
+    public function provideInvertedFixCases(): iterable {
+        foreach ($this->provideFixCases() as $name => $case) {
+            yield $name => [$case[1], $case[0]];
+        }
+    }
+
+    protected function createFixer(): AbstractFixer {
+        return new MultilineIfStatementBracesFixer();
+    }
+
+}