phptek / silverstripe-jsontext

     * @todo There are a ton more permutations of a JSONPath regex

     * See the trace() method in JSONPath for more examples to work from

     */

    public function testIsValidExpression()

    {

        $field = JSONText::create('MyJSON');

        $this->assertTrue($field->isValidExpression('$..'));

        $this->assertTrue($field->isValidExpression('*'));

        $this->assertTrue($field->isValidExpression('$.[2]'));

        $this->assertTrue($field->isValidExpression('$.cars.american[*]'));

        $this->assertTrue($field->isValidExpression('[0:1:1]'));

        $this->assertFalse($field->isValidExpression('[0:1:]'));

        $this->assertFalse($field->isValidExpression('[0:1:1'));

        $this->assertFalse($field->isValidExpression(''));

        $this->assertFalse($field->isValidExpression('$.1.cars.american[*]'));

        $this->assertFalse($field->isValidExpression('$'));

        $this->assertFalse($field->isValidExpression('$[2]'));

    }

    /**

     * @return void

    /**

     * @return void

     */

    public function testIsValidJson()

    {

        $field = JSONText::create('MyJSON');

        $this->assertFalse($field->isValidJson(''));

        $this->assertTrue($field->isValidJson('true'));

        $this->assertTrue($field->isValidJson('false'));

        $this->assertFalse($field->isValidJson('null'));

        $this->assertFalse($field->isValidJson("['one']"));

        $this->assertFalse($field->isValidJson('["one]'));

        $this->assertFalse($field->isValidJson('{{{'));

        $this->assertTrue($field->isValidJson('[]'));

        $this->assertTrue($field->isValidJson('["one"]'));

        $this->assertTrue($field->isValidJson('["one","two"]'));

        $this->assertTrue($field->isValidJson('{"cars":{"american":["buick","oldsmobile"]}}'));

    }

    /**