Merge pull request #33 from clue-labs/prompt

Add Readline::getPrompt() helper

Author: clue

README.md

@@ -117,6 +117,13 @@ You can restore this behavior by passing an empty prompt:
 $readline->setPrompt('');
 ```
 
+The `getPrompt()` method can be used to get the current input prompt.
+It will return an empty string unless you've set anything else:
+
+```php
+assert($readline->getPrompt() === '');
+```
+
 #### Echo
 
 The *echo mode* controls how the actual *user input buffer* will be presented in the *user input line*.

src/Readline.php

@@ -122,6 +122,17 @@ public function setPrompt($prompt)
         return $this->redraw();
     }
 
+    /**
+     * returns the prompt to prepend to input line
+     *
+     * @return string
+     * @see self::setPrompt()
+     */
+    public function getPrompt()
+    {
+        return $this->prompt;
+    }
+
     /**
      * sets whether/how to echo text input
      *

tests/ReadlineTest.php

@@ -26,6 +26,7 @@ public function testSettersReturnSelf()
 
     public function testInputStartsEmpty()
     {
+        $this->assertEquals('', $this->readline->getPrompt());
         $this->assertEquals('', $this->readline->getInput());
         $this->assertEquals(0, $this->readline->getCursorPosition());
         $this->assertEquals(0, $this->readline->getCursorCell());
@@ -39,6 +40,12 @@ public function testGetInputAfterSetting()
         $this->assertEquals(5, $this->readline->getCursorCell());
     }
 
+    public function testPromptAfterSetting()
+    {
+        $this->assertSame($this->readline, $this->readline->setPrompt('> '));
+        $this->assertEquals('> ' , $this->readline->getPrompt());
+    }
+
     public function testSettingInputMovesCursorToEnd()
     {
         $this->readline->setInput('hello');