import unittest
from cpuinfo import *
import helpers


class MockDataSource:
	bits = '32bit'
	cpu_count = 1
	is_windows = False
	arch_string_raw = 'armv6l'
	uname_string_raw = ''

	@staticmethod
	def has_proc_cpuinfo():
		return True

	@staticmethod
	def has_lscpu():
		return True

	@staticmethod
	def cat_proc_cpuinfo():
		returncode = 0
		output = r'''
Processor	: ARMv6-compatible processor rev 7 (v6l)
BogoMIPS	: 697.95
Features	: swp half thumb fastmult vfp edsp java tls
CPU implementer	: 0x41
CPU architecture: 7
CPU variant	: 0x0
CPU part	: 0xb76
CPU revision	: 7

Hardware	: BCM2708
Revision	: 000d
Serial		: 0000000066564a8f


'''
		return returncode, output

	@staticmethod
	def lscpu():
		returncode = 0
		output = r'''
Architecture:          armv6l
Byte Order:            Little Endian
CPU(s):                1
On-line CPU(s) list:   0
Thread(s) per core:    1
Core(s) per socket:    1
Socket(s):             1
CPU max MHz:           700.0000
CPU min MHz:           700.0000


'''
		return returncode, output

class TestLinux_RaspberryPiModelB(unittest.TestCase):
	def setUp(self):
		helpers.backup_data_source(cpuinfo)
		helpers.monkey_patch_data_source(cpuinfo, MockDataSource)

	def tearDown(self):
		helpers.restore_data_source(cpuinfo)

	'''
	Make sure calls return the expected number of fields.
	'''
	def test_returns(self):
		self.assertEqual(0, len(cpuinfo._get_cpu_info_from_registry()))
		self.assertEqual(0, len(cpuinfo._get_cpu_info_from_cpufreq_info()))
		self.assertEqual(4, len(cpuinfo._get_cpu_info_from_lscpu()))
		self.assertEqual(3, len(cpuinfo._get_cpu_info_from_proc_cpuinfo()))
		self.assertEqual(0, len(cpuinfo._get_cpu_info_from_sysctl()))
		self.assertEqual(0, len(cpuinfo._get_cpu_info_from_kstat()))
		self.assertEqual(0, len(cpuinfo._get_cpu_info_from_dmesg()))
		self.assertEqual(0, len(cpuinfo._get_cpu_info_from_cat_var_run_dmesg_boot()))
		self.assertEqual(0, len(cpuinfo._get_cpu_info_from_ibm_pa_features()))
		self.assertEqual(0, len(cpuinfo._get_cpu_info_from_sysinfo()))
		self.assertEqual(0, len(cpuinfo._get_cpu_info_from_cpuid()))
		self.assertEqual(14, len(cpuinfo._get_cpu_info_internal()))

	def test_get_cpu_info_from_lscpu(self):
		info = cpuinfo._get_cpu_info_from_lscpu()

		self.assertEqual('700.0000 MHz', info['hz_advertised_friendly'])
		self.assertEqual('700.0000 MHz', info['hz_actual_friendly'])
		self.assertEqual((700000000, 0), info['hz_advertised'])
		self.assertEqual((700000000, 0), info['hz_actual'])

	def test_get_cpu_info_from_proc_cpuinfo(self):
		info = cpuinfo._get_cpu_info_from_proc_cpuinfo()

		self.assertEqual('BCM2708', info['hardware_raw'])
		self.assertEqual('ARMv6-compatible processor rev 7 (v6l)', info['brand_raw'])

		self.assertEqual(
			['edsp', 'fastmult', 'half', 'java', 'swp', 'thumb', 'tls', 'vfp']
			,
			info['flags']
		)

	def test_all(self):
		info = cpuinfo._get_cpu_info_internal()

		self.assertEqual('BCM2708', info['hardware_raw'])
		self.assertEqual('ARMv6-compatible processor rev 7 (v6l)', info['brand_raw'])
		self.assertEqual('700.0000 MHz', info['hz_advertised_friendly'])
		self.assertEqual('700.0000 MHz', info['hz_actual_friendly'])
		self.assertEqual((700000000, 0), info['hz_advertised'])
		self.assertEqual((700000000, 0), info['hz_actual'])
		self.assertEqual('ARM_7', info['arch'])
		self.assertEqual(32, info['bits'])
		self.assertEqual(1, info['count'])

		self.assertEqual('armv6l', info['arch_string_raw'])

		self.assertEqual(
			['edsp', 'fastmult', 'half', 'java', 'swp', 'thumb', 'tls', 'vfp']
			,
			info['flags']
		)