DiffMatchPatch\PatchTest::testAddPadding PHP Method

    public function testAddPadding()
    {
        // Both edges full.
        $patches = $this->p->make("", "test");
        $this->assertEquals("@@ -0,0 +1,4 @@\n+test\n", $this->p->toText($patches));
        $this->p->addPadding($patches);
        $this->assertEquals("@@ -1,8 +1,12 @@\n %01%02%03%04\n+test\n %01%02%03%04\n", $this->p->toText($patches));
        // Both edges partial.
        $patches = $this->p->make("XY", "XtestY");
        $this->assertEquals("@@ -1,2 +1,6 @@\n X\n+test\n Y\n", $this->p->toText($patches));
        $this->p->addPadding($patches);
        $this->assertEquals("@@ -2,8 +2,12 @@\n %02%03%04X\n+test\n Y%01%02%03\n", $this->p->toText($patches));
        // Both edges none.
        $patches = $this->p->make("XXXXYYYY", "XXXXtestYYYY");
        $this->assertEquals("@@ -1,8 +1,12 @@\n XXXX\n+test\n YYYY\n", $this->p->toText($patches));
        $this->p->addPadding($patches);
        $this->assertEquals("@@ -5,8 +5,12 @@\n XXXX\n+test\n YYYY\n", $this->p->toText($patches));
    }