Merge pull request #7 from php-school/add-clearing-methods

More clearing methods

Author: AydinHassan

src/Terminal.php

@@ -81,6 +81,11 @@ public function clear() : void;
      */
     public function clearLine() : void;
 
+    /**
+     * Erase screen from the current line down to the bottom of the screen
+     */
+    public function clearDown() : void;
+
     /**
      * Clean the whole console without jumping the window
      */

src/UnixTerminal.php

@@ -193,7 +193,15 @@ public function clear() : void
 
     public function clearLine() : void
     {
-        $this->output->write(sprintf("\033[%dD\033[K", $this->getWidth()));
+        $this->output->write("\033[2K");
+    }
+
+    /**
+     * Erase screen from the current line down to the bottom of the screen
+     */
+    public function clearDown() : void
+    {
+        $this->output->write("\033[J");
     }
 
     public function clean() : void

test/UnixTerminalTest.php

@@ -145,14 +145,20 @@ public function testClearLine() : void
         $output = new BufferedOutput;
 
         $terminal = new UnixTerminal($input, $output);
-        $rf = new \ReflectionObject($terminal);
-        $rp = $rf->getProperty('width');
-        $rp->setAccessible(true);
-        $rp->setValue($terminal, 23);
-
         $terminal->clearLine();
 
-        self::assertEquals("\033[23D\033[K", $output->fetch());
+        self::assertEquals("\033[2K", $output->fetch());
+    }
+
+    public function testClearDown() : void
+    {
+        $input  = $this->createMock(InputStream::class);
+        $output = new BufferedOutput;
+
+        $terminal = new UnixTerminal($input, $output);
+        $terminal->clearDown();
+
+        self::assertEquals("\033[J", $output->fetch());
     }
 
     public function testClean() : void
@@ -171,7 +177,7 @@ public function testClean() : void
 
         $terminal->clean();
 
-        self::assertEquals("\033[0;0H\033[23D\033[K\033[1;0H\033[23D\033[K\033[2;0H\033[23D\033[K", $output->fetch());
+        self::assertEquals("\033[0;0H\033[2K\033[1;0H\033[2K\033[2;0H\033[2K", $output->fetch());
     }
 
     public function testEnableCursor() : void