Ensure we can output checkboxes when the terminal width is unknown

CHANGELOG.md

@@ -3,6 +3,14 @@ Changelog
 
 --------
 
+## 3.5.2 - 2019-12-01
+
+### Fixed
+
+* [Checkbox] Ensure we can output when the terminal width is unknown. [#156](https://github.com/thephpleague/climate/pull/156)
+
+--------
+
 ## 3.5.1 - 2019-11-24
 
 ### Fixed

src/TerminalObject/Dynamic/Checkbox/Checkbox.php

@@ -173,7 +173,7 @@ protected function buildCheckboxString()
      */
     protected function getPaddingString($line)
     {
-        $length = $this->util->system->width() - $this->lengthWithoutTags($line);
+        $length = $this->util->width() - $this->lengthWithoutTags($line);
 
         return str_repeat(' ', $length);
     }

tests/CheckboxesTest.php

@@ -2,6 +2,12 @@
 
 namespace League\CLImate\Tests;
 
+use League\CLImate\Util\System\Linux;
+use League\CLImate\Util\UtilFactory;
+use Mockery;
+
+use function str_repeat;
+
 class CheckboxesTest extends TestBase
 {
     protected function shouldHideCursor()
@@ -149,4 +155,22 @@ public function it_can_toggle_a_checkbox()
 
         $this->assertSame([], $response);
     }
+
+
+    /**
+     * Ensure we can output checkboxes when the terminal width is unknown
+     */
+    public function test1(): void
+    {
+        $system = Mockery::mock(Linux::class);
+        $system->shouldReceive("hasAnsiSupport")->andReturn(true);
+
+        # When the width is unknown then a default of 80 should be used
+        $system->shouldReceive("width")->andReturn(null);
+
+        $this->util = new UtilFactory($system);
+        $this->cli->setUtil($this->util);
+
+        $this->it_can_select_a_checkbox();
+    }
 }