From 801de7fc1f296d5334e09679fbf95f65be507c75 Mon Sep 17 00:00:00 2001
From: ser1zw <azariahsawtikes@gmail.com>
Date: Sun, 10 Apr 2016 19:46:46 +0900
Subject: [PATCH] add tests for IplImage

---
 test/legacy/test_iplimage.rb | 104 +++++++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100755 test/legacy/test_iplimage.rb

diff --git a/test/legacy/test_iplimage.rb b/test/legacy/test_iplimage.rb
new file mode 100755
index 0000000..e68fc06
--- /dev/null
+++ b/test/legacy/test_iplimage.rb
@@ -0,0 +1,104 @@
+#!/usr/bin/env ruby
+# -*- mode: ruby; coding: utf-8 -*-
+require 'test/unit'
+require 'opencv'
+require File.expand_path(File.dirname(__FILE__)) + '/../helper'
+
+include OpenCV
+
+# Tests for OpenCV::IplImage
+class TestIplImage < OpenCVTestCase
+
+  def test_initialize
+    img = IplImage.new(10, 20)
+    assert_equal(10, img.width)
+    assert_equal(20, img.height)
+    assert_equal(:cv8u, img.depth)
+    assert_equal(3, img.channel)
+
+    img = IplImage.new(30, 40, :cv32f, 1)
+    assert_equal(30, img.width)
+    assert_equal(40, img.height)
+    assert_equal(:cv32f, img.depth)
+    assert_equal(1, img.channel)
+  end
+
+  def test_load
+    img1 = IplImage.load(FILENAME_CAT)
+    assert_equal(IplImage, img1.class)
+    assert_equal(375, img1.width)
+    assert_equal(500, img1.height)
+    assert_equal(:cv8u, img1.depth)
+    assert_equal(3, img1.channel)
+
+    img2 = IplImage.load(FILENAME_CAT, CV_LOAD_IMAGE_GRAYSCALE)
+    assert_equal(IplImage, img2.class)
+    assert_equal(375, img2.width)
+    assert_equal(500, img2.height)
+    assert_equal(:cv8u, img2.depth)
+    assert_equal(1, img2.channel)
+
+    img3 = IplImage.load(FILENAME_CAT, CV_LOAD_IMAGE_ANYDEPTH | CV_LOAD_IMAGE_ANYCOLOR)
+    assert_equal(IplImage, img3.class)
+    assert_equal(375, img3.width)
+    assert_equal(500, img3.height)
+    assert_equal(:cv8u, img3.depth)
+    assert_equal(3, img3.channel)
+
+    assert_raise(ArgumentError) {
+      IplImage.load
+    }
+    assert_raise(TypeError) {
+      IplImage.load(123)
+    }
+    assert_raise(TypeError) {
+      IplImage.load(FILENAME_CAT, 'foobar')
+    }
+    assert_raise(StandardError) {
+      IplImage.load('file/does/not/exist')
+    }
+
+    # Uncomment the following lines to show the results
+    # snap img1, img2, img3
+  end
+
+  def test_decode
+    data = open(FILENAME_CAT, 'rb') { |f| f.read }
+
+    data_ary = data.unpack("c*")
+    expected = IplImage.load(FILENAME_CAT)
+
+    img1 = IplImage.decode(data)
+    img2 = IplImage.decode(data_ary)
+    img3 = IplImage.decode(data, CV_LOAD_IMAGE_COLOR)
+    img4 = IplImage.decode(data_ary, CV_LOAD_IMAGE_COLOR)
+
+    [img1, img2, img3, img4].each { |img|
+      assert_equal(IplImage, img.class)
+      assert_equal(expected.rows, img.rows)
+      assert_equal(expected.cols, img.cols)
+      assert_equal(expected.channel, img.channel)
+    }
+
+    expected_c1 = IplImage.load(FILENAME_CAT, CV_LOAD_IMAGE_GRAYSCALE)
+    img1c1 = IplImage.decode(data, CV_LOAD_IMAGE_GRAYSCALE)
+    img2c1 = IplImage.decode(data_ary, CV_LOAD_IMAGE_GRAYSCALE)
+
+    [img1c1, img2c1].each { |img|
+      assert_equal(IplImage, img.class)
+      assert_equal(expected_c1.rows, img.rows)
+      assert_equal(expected_c1.cols, img.cols)
+      assert_equal(expected_c1.channel, img.channel)
+    }
+
+    assert_raise(TypeError) {
+      IplImage.decode(DUMMY_OBJ)
+    }
+    assert_raise(TypeError) {
+      IplImage.decode(data, DUMMY_OBJ)
+    }
+
+    # Uncomment the following line to show the result images
+    # snap img1, img2, img3
+  end
+end