Updated Travis requirements.

Update packages installed during Travis run

Remove ia32 libs from Travis.

Remove trusty as default build platform.

Add more CPU unit tests.

Add release tag to README.md

Author: craigthomas

.travis.yml

@@ -1,6 +1,5 @@
 language: python
-dist: trusty
-sudo: required
+sudo: false
 python:
   - 2.7
 env:
@@ -19,16 +18,16 @@ addons:
       - libavformat-dev
       - libavcodec-dev
       - libjpeg-dev
-      - libtiff4-dev
+      - libtiff5-dev
       - libx11-6
       - libx11-dev
       - xfonts-base
       - xfonts-100dpi
       - xfonts-75dpi
-before_install:
-  - sudo apt-get update -qq
-  - sudo apt-get install libsmpeg-dev xfonts-cyrillic
-  - sh -e /etc/init.d/xvfb start
+      - libsmpeg-dev
+      - xfonts-cyrillic
+services:
+  - xvfb
 virtalenv:
   system_site_packages: true
 script: 

README.md

@@ -4,6 +4,7 @@
 [![Codecov](https://img.shields.io/codecov/c/gh/craigthomas/Chip8Python?style=flat-square)](https://codecov.io/gh/craigthomas/Chip8Python) 
 [![Codacy Badge](https://img.shields.io/codacy/grade/f100b6deb9bf4729a2c55ef12fb695c9?style=flat-square)](https://www.codacy.com/app/craig-thomas/Chip8Python?utm_source=github.com&utm_medium=referral&utm_content=craigthomas/Chip8Python&utm_campaign=Badge_Grade)
 [![Dependencies](https://img.shields.io/librariesio/github/craigthomas/Chip8Python?style=flat-square)](https://libraries.io/github/craigthomas/Chip8Python)
+[![Releases](https://img.shields.io/github/release/craigthomas/Chip8Python?style=flat-square)](https://github.com/craigthomas/Chip8Python/releases)
 [![License: MIT](https://img.shields.io/badge/license-MIT-blue.svg?style=flat-square)](https://opensource.org/licenses/MIT)
 
 

test/test_chip8cpu.py

@@ -9,6 +9,7 @@
 import mock
 import pygame
 import unittest
+import collections
 
 from mock import patch, call
 
@@ -587,6 +588,13 @@ def test_execute_instruction_raises_exception_on_unknown_op_code_from_cpu(self):
             self.cpu.execute_instruction(operand=0x8008)
         self.assertEqual("Unknown op-code: 8008", context.exception.message)
 
+    def test_execute_instruction_on_operand_in_memory(self):
+        self.cpu.registers['pc'] = 0x200
+        self.cpu.memory[0x200] = 0x61
+        result = self.cpu.execute_instruction()
+        self.assertEqual(0x6100, result)
+        self.assertEqual(0x202, self.cpu.registers['pc'])
+
     def test_execute_logical_instruction_raises_exception_on_unknown_op_codes(self):
         for x in xrange(8, 14):
             self.cpu.operand = x
@@ -724,9 +732,43 @@ def test_load_index_with_sprite(self):
         self.cpu.load_index_with_extended_reg_sprite()
         self.assertEqual(100, self.cpu.registers['index'])
 
+    def test_str_function(self):
+        self.cpu.registers['v'][0] = 0
+        self.cpu.registers['v'][1] = 1
+        self.cpu.registers['v'][2] = 2
+        self.cpu.registers['v'][3] = 3
+        self.cpu.registers['v'][4] = 4
+        self.cpu.registers['v'][5] = 5
+        self.cpu.registers['v'][6] = 6
+        self.cpu.registers['v'][7] = 7
+        self.cpu.registers['v'][8] = 8
+        self.cpu.registers['v'][9] = 9
+        self.cpu.registers['v'][10] = 10
+        self.cpu.registers['v'][11] = 11
+        self.cpu.registers['v'][12] = 12
+        self.cpu.registers['v'][13] = 13
+        self.cpu.registers['v'][14] = 14
+        self.cpu.registers['v'][15] = 15
+        self.cpu.registers['pc'] = 0xBEEF
+        self.cpu.operand = 0xBA
+        self.cpu.registers['index'] = 0xDEAD
+        result = str(self.cpu)
+        self.assertEqual("PC: BEED  OP:   BA\nV0:  0\nV1:  1\nV2:  2\nV3:  3\nV4:  4\nV5:  5\nV6:  6\nV7:  7\nV8:  8\nV9:  9\nVA:  A\nVB:  B\nVC:  C\nVD:  D\nVE:  E\nVF:  F\nI: DEAD\n", result)
+
+    def test_wait_for_keypress(self):
+        EventMock = collections.namedtuple('EventMock', 'type')
+        event_mock = EventMock(type=pygame.KEYDOWN)
+        self.cpu.operand = 0x0
+        with mock.patch("pygame.event.wait", return_value=event_mock):
+            result_table = [False] * 512
+            result_table[pygame.K_4] = True
+            with mock.patch("pygame.key.get_pressed", return_value=result_table):
+                self.cpu.wait_for_keypress()
+                self.assertEqual(0x1, self.cpu.registers['v'][0])
 
 # M A I N #####################################################################
 
+
 if __name__ == '__main__':
     unittest.main()