From 7f6127f3f83fc1af539b0a1f4981b98877da547c Mon Sep 17 00:00:00 2001
From: Aidan Woods <aidantwoods@gmail.com>
Date: Fri, 22 Feb 2019 15:30:00 +0000
Subject: [PATCH] Ensure we cover all mutations in tests

---
 tests/src/Parsing/LineTest.php  | 40 +++++++++++++++++++++++++++++++++
 tests/src/Parsing/LinesTest.php | 16 +++++++++++++
 tests/src/StateTest.php         | 10 +++++++++
 3 files changed, 66 insertions(+)
 create mode 100644 tests/src/Parsing/LineTest.php

diff --git a/tests/src/Parsing/LineTest.php b/tests/src/Parsing/LineTest.php
new file mode 100644
index 0000000..ad6afc0
--- /dev/null
+++ b/tests/src/Parsing/LineTest.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Erusev\Parsedown\Tests\Parsing;
+
+use Erusev\Parsedown\Parsing\Line;
+use PHPUnit\Framework\TestCase;
+
+final class LineTest extends TestCase
+{
+    /**
+     * @return void
+     * @throws \PHPUnit\Framework\ExpectationFailedException
+     * @throws \SebastianBergmann\RecursionContext\InvalidArgumentException
+     */
+    public function testLTrimmingBody()
+    {
+        $Line = new Line("  \t \t  \t   \tfoo", 1);
+
+        // ltrim only acts on the indent string
+        $this->assertSame('foo', $Line->ltrimBodyUpto(100));
+
+
+        $this->assertSame(" \t \t  \t   \tfoo", $Line->ltrimBodyUpto(1));
+        $this->assertSame("\t \t  \t   \tfoo", $Line->ltrimBodyUpto(2));
+        $this->assertSame(" \t  \t   \tfoo", $Line->ltrimBodyUpto(3));
+        $this->assertSame("\t  \t   \tfoo", $Line->ltrimBodyUpto(4));
+        $this->assertSame("    \t   \tfoo", $Line->ltrimBodyUpto(5));
+        $this->assertSame("   \t   \tfoo", $Line->ltrimBodyUpto(6));
+        $this->assertSame("  \t   \tfoo", $Line->ltrimBodyUpto(7));
+        $this->assertSame(" \t   \tfoo", $Line->ltrimBodyUpto(8));
+        $this->assertSame("\t   \tfoo", $Line->ltrimBodyUpto(9));
+        $this->assertSame("    \tfoo", $Line->ltrimBodyUpto(10));
+        $this->assertSame("   \tfoo", $Line->ltrimBodyUpto(11));
+        $this->assertSame("  \tfoo", $Line->ltrimBodyUpto(12));
+        $this->assertSame(" \tfoo", $Line->ltrimBodyUpto(13));
+        $this->assertSame("\tfoo", $Line->ltrimBodyUpto(14));
+        $this->assertSame('foo', $Line->ltrimBodyUpto(15));
+        $this->assertSame('foo', $Line->ltrimBodyUpto(16));
+    }
+}
diff --git a/tests/src/Parsing/LinesTest.php b/tests/src/Parsing/LinesTest.php
index 17bf57c..4ac0ce0 100644
--- a/tests/src/Parsing/LinesTest.php
+++ b/tests/src/Parsing/LinesTest.php
@@ -83,4 +83,20 @@ final class LinesTest extends TestCase
 
         $this->assertSame($Lines->trailingBlankLines(), 0);
     }
+
+    /**
+     * @return void
+     * @throws \PHPUnit\Framework\ExpectationFailedException
+     * @throws \SebastianBergmann\RecursionContext\InvalidArgumentException
+     */
+    public function testAppendNegativeBlankLines()
+    {
+        $Lines = Lines::fromTextLines('foo', 0);
+
+        $this->assertSame($Lines->trailingBlankLines(), 0);
+
+        $Lines = $Lines->appendingBlankLines(-1);
+
+        $this->assertSame($Lines->trailingBlankLines(), 0);
+    }
 }
diff --git a/tests/src/StateTest.php b/tests/src/StateTest.php
index 22d5311..0cc58a2 100644
--- a/tests/src/StateTest.php
+++ b/tests/src/StateTest.php
@@ -29,4 +29,14 @@ final class StateTest extends TestCase
         $this->assertFalse($UpdatedState->get(StrictMode::class)->isEnabled());
         $this->assertFalse($UpdatedState->get(Breaks::class)->isEnabled());
     }
+
+    /**
+     * @return void
+     * @throws \PHPUnit\Framework\ExpectationFailedException
+     * @throws \SebastianBergmann\RecursionContext\InvalidArgumentException
+     */
+    public function testStateCloneVisibility()
+    {
+        $this->assertInstanceOf(State::class, clone(new State));
+    }
 }