/*
 * Copyright 2015 Nathan Fiedler
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

extern crate magick_rust;

use magick_rust::{MagickWand, magick_wand_genesis};
use magick_rust::filters::{FilterType};

use std::sync::{Once, ONCE_INIT};

// Used to make sure MagickWand is initialized exactly once. Note that we
// do not bother shutting down, we simply exit when the tests are done.
static START: Once = ONCE_INIT;

#[test]
fn test_new_drop() {
    START.call_once(|| {
        magick_wand_genesis();
    });
    MagickWand::new();
}

#[test]
fn test_resize_image() {
    START.call_once(|| {
        magick_wand_genesis();
    });
    let wand = MagickWand::new();
    assert!(wand.read_image("tests/data/IMG_5745.JPG").is_ok());
    assert_eq!(512, wand.get_image_width());
    assert_eq!(384, wand.get_image_height());
    let halfwidth = match wand.get_image_width() {
        1 => 1,
        width => width / 2
    };
    let halfheight = match wand.get_image_height() {
        1 => 1,
        height => height / 2
    };
    wand.resize_image(halfwidth, halfheight, FilterType::LanczosFilter, 1.0);
    assert_eq!(256, wand.get_image_width());
    assert_eq!(192, wand.get_image_height());
}