diff --git a/tests/core/test_context.py b/tests/core/test_context.py
index a095c83..116a899 100644
--- a/tests/core/test_context.py
+++ b/tests/core/test_context.py
@@ -6,7 +6,7 @@ from gixy.core.regexp import Regexp
 
 
 def setup():
-    assert_equals(len(CONTEXTS), 0)
+    assert len(CONTEXTS) == 0
 
 
 def tear_down():
@@ -17,39 +17,39 @@ def tear_down():
 def test_push_pop_context():
     root_a = Root()
     push_context(root_a)
-    assert_equals(len(CONTEXTS), 1)
+    assert len(CONTEXTS) == 1
     root_b = Root()
     push_context(root_b)
-    assert_equals(len(CONTEXTS), 2)
+    assert len(CONTEXTS) == 2
 
     poped = pop_context()
-    assert_equals(len(CONTEXTS), 1)
-    assert_equals(poped.block, root_b)
+    assert len(CONTEXTS) == 1
+    assert poped.block == root_b
     poped = pop_context()
-    assert_equals(len(CONTEXTS), 0)
-    assert_equals(poped.block, root_a)
+    assert len(CONTEXTS) == 0
+    assert poped.block == root_a
 
 
 @with_setup(setup, tear_down)
 def test_push_get_purge_context():
     root = Root()
     push_context(root)
-    assert_equals(len(CONTEXTS), 1)
-    assert_equals(get_context().block, root)
+    assert len(CONTEXTS) == 1
+    assert get_context().block == root
     root = Root()
     push_context(root)
-    assert_equals(len(CONTEXTS), 2)
-    assert_equals(get_context().block, root)
+    assert len(CONTEXTS) == 2
+    assert get_context().block == root
 
     purge_context()
-    assert_equals(len(CONTEXTS), 0)
+    assert len(CONTEXTS) == 0
 
 
 @with_setup(setup, tear_down)
 def test_add_variables():
     context = push_context(Root())
-    assert_equals(len(context.variables['index']), 0)
-    assert_equals(len(context.variables['name']), 0)
+    assert len(context.variables['index']) == 0
+    assert len(context.variables['name']) == 0
 
     one_str_var = Variable('1')
     context.add_var('1', one_str_var)
@@ -58,77 +58,77 @@ def test_add_variables():
     some_var = Variable('some')
     context.add_var('some', some_var)
 
-    assert_equals(len(context.variables['index']), 1)
-    assert_equals(context.variables['index'][1], one_int_var)
-    assert_equals(len(context.variables['name']), 1)
-    assert_equals(context.variables['name']['some'], some_var)
+    assert len(context.variables['index']) == 1
+    assert context.variables['index'][1] == one_int_var
+    assert len(context.variables['name']) == 1
+    assert context.variables['name']['some'] == some_var
     context.clear_index_vars()
-    assert_equals(len(context.variables['index']), 0)
-    assert_equals(len(context.variables['name']), 1)
-    assert_equals(context.variables['name']['some'], some_var)
+    assert len(context.variables['index']) == 0
+    assert len(context.variables['name']) == 1
+    assert context.variables['name']['some'] == some_var
 
 
 @with_setup(setup, tear_down)
 def test_get_variables():
     context = push_context(Root())
-    assert_equals(len(context.variables['index']), 0)
-    assert_equals(len(context.variables['name']), 0)
+    assert len(context.variables['index']) == 0
+    assert len(context.variables['name']) == 0
 
     one_var = Variable(1)
     context.add_var(1, one_var)
     some_var = Variable('some')
     context.add_var('some', some_var)
 
-    assert_equals(context.get_var(1), one_var)
-    assert_equals(context.get_var('some'), some_var)
+    assert context.get_var(1) == one_var
+    assert context.get_var('some') == some_var
     # Checks not existed variables, for now context may return None
-    assert_equals(context.get_var(0), None)
-    assert_equals(context.get_var('not_existed'), None)
+    assert context.get_var(0) == None
+    assert context.get_var('not_existed') == None
     # Checks builtins variables
-    assert_true(context.get_var('uri'))
-    assert_true(context.get_var('document_uri'))
-    assert_true(context.get_var('arg_asdsadasd'))
-    assert_true(context.get_var('args'))
+    assert context.get_var('uri')
+    assert context.get_var('document_uri')
+    assert context.get_var('arg_asdsadasd')
+    assert context.get_var('args')
 
 
 @with_setup(setup, tear_down)
 def test_context_depend_variables():
     push_context(Root())
-    assert_equals(len(get_context().variables['index']), 0)
-    assert_equals(len(get_context().variables['name']), 0)
+    assert len(get_context().variables['index']) == 0
+    assert len(get_context().variables['name']) == 0
 
     get_context().add_var(1, Variable(1, value='one'))
     get_context().add_var('some', Variable('some', value='some'))
 
-    assert_equals(get_context().get_var(1).value, 'one')
-    assert_equals(get_context().get_var('some').value, 'some')
+    assert get_context().get_var(1).value == 'one'
+    assert get_context().get_var('some').value == 'some'
 
     # Checks top context variables are still exists
     push_context(Root())
-    assert_equals(get_context().get_var(1).value, 'one')
-    assert_equals(get_context().get_var('some').value, 'some')
+    assert get_context().get_var(1).value == 'one'
+    assert get_context().get_var('some').value == 'some'
 
     # Checks variable overriding
     get_context().add_var('some', Variable('some', value='some_new'))
     get_context().add_var('foo', Variable('foo', value='foo'))
     assert_not_equals(get_context().get_var('some').value, 'some')
-    assert_equals(get_context().get_var('some').value, 'some_new')
-    assert_equals(get_context().get_var('foo').value, 'foo')
-    assert_equals(get_context().get_var(1).value, 'one')
+    assert get_context().get_var('some').value == 'some_new'
+    assert get_context().get_var('foo').value == 'foo'
+    assert get_context().get_var(1).value == 'one'
 
     # Checks variables after restore previous context
     pop_context()
     assert_not_equals(get_context().get_var('some').value, 'some_new')
-    assert_equals(get_context().get_var('some').value, 'some')
-    assert_equals(get_context().get_var('foo'), None)
-    assert_equals(get_context().get_var(1).value, 'one')
+    assert get_context().get_var('some').value == 'some'
+    assert get_context().get_var('foo') == None
+    assert get_context().get_var(1).value == 'one'
 
 
 @with_setup(setup, tear_down)
 def test_push_failed_with_regexp_py35_gixy_10():
     push_context(Root())
-    assert_equals(len(get_context().variables['index']), 0)
-    assert_equals(len(get_context().variables['name']), 0)
+    assert len(get_context().variables['index']) == 0
+    assert len(get_context().variables['name']) == 0
 
     regexp = Regexp('^/some/(.*?)')
     for name, group in regexp.groups.items():
diff --git a/tests/core/test_regexp.py b/tests/core/test_regexp.py
index 348b386..10b7316 100644
--- a/tests/core/test_regexp.py
+++ b/tests/core/test_regexp.py
@@ -258,145 +258,124 @@ def test_generate():
 
 def test_strict_generate():
     reg = Regexp('^foo|bar', strict=True)
-    assert_equals(sorted(reg.generate('|', anchored=True)), sorted(['^foo', '^bar']))
+    assert sorted(reg.generate('|', anchored=True)) == sorted(['^foo', '^bar'])
 
 
 def test_gen_anchor():
 
     reg = Regexp('^some$')
     val = next(reg.generate('', anchored=False))
-    assert_equals(val, 'some')
+    assert val == 'some'
 
     reg = Regexp('^some$')
     val = next(reg.generate('', anchored=True))
-    assert_equals(val, '^some$')
+    assert val == '^some$'
 
     reg = Regexp('^some$', strict=True)
     val = next(reg.generate('', anchored=False))
-    assert_equals(val, 'some')
+    assert val == 'some'
 
     reg = Regexp('^some$', strict=True)
     val = next(reg.generate('', anchored=True))
-    assert_equals(val, '^some$')
+    assert val == '^some$'
 
 
 def test_group_can_contains():
     source = '/some/(?P<action>[^/:.]+)/'
     reg = Regexp(source)
-    assert_true(reg.can_contain('\n'),
-                'Whole regex "{src}" can contains {sym!r}'.format(src=source, sym='\\n'))
+    assert reg.can_contain('\n'), 'Whole regex "{src}" can contains {sym!r}'.format(src=source, sym='\\n')
 
-    assert_true(reg.group(0).can_contain('\n'),
-                'Group 0 from regex "{src}" can contains {sym!r}'.format(src=source, sym='\\n'))
+    assert reg.group(0).can_contain('\n'), 'Group 0 from regex "{src}" can contains {sym!r}'.format(src=source, sym='\\n')
 
-    assert_true(reg.group('action').can_contain('\n'),
-                'Group "action" from regex "{src}" can contains {sym!r}'.format(src=source, sym='\\n'))
+    assert reg.group('action').can_contain('\n'), 'Group "action" from regex "{src}" can contains {sym!r}'.format(src=source, sym='\\n')
 
-    assert_true(reg.group(1).can_contain('\n'),
-                'Group 1 from regex "{src}" can contains {sym!r}'.format(src=source, sym='\\n'))
+    assert reg.group(1).can_contain('\n'), 'Group 1 from regex "{src}" can contains {sym!r}'.format(src=source, sym='\\n')
 
-    assert_false(reg.group('action').can_contain('/'),
-                 'Group "action" from regex "{src}" CAN\'T (!) contain {sym!r}'.format(src=source, sym='/'))
+    assert not reg.group('action').can_contain('/'), 'Group "action" from regex "{src}" CAN\'T (!) contain {sym!r}'.format(src=source, sym='/')
 
 
 def check_positive_contain(regexp, char):
     reg = Regexp(regexp, case_sensitive=True)
-    assert_true(reg.can_contain(char),
-                '{reg!r} should contain {chr!r}'.format(reg=regexp, chr=char))
+    assert reg.can_contain(char), '{reg!r} should contain {chr!r}'.format(reg=regexp, chr=char)
 
     reg = Regexp(regexp, case_sensitive=False)
     char = char.upper()
-    assert_true(reg.can_contain(char),
-                '{reg!r} (case insensitive) should contain {chr!r}'.format(reg=regexp, chr=char))
+    assert reg.can_contain(char), '{reg!r} (case insensitive) should contain {chr!r}'.format(reg=regexp, chr=char)
 
 
 def check_negative_contain(regexp, char):
     reg = Regexp(regexp, case_sensitive=True)
-    assert_false(reg.can_contain(char),
-                 '{reg!r} should not contain {chr!r}'.format(reg=regexp, chr=char))
+    assert not reg.can_contain(char), '{reg!r} should not contain {chr!r}'.format(reg=regexp, chr=char)
 
     reg = Regexp(regexp, case_sensitive=False)
     char = char.upper()
-    assert_false(reg.can_contain(char),
-                 '{reg!r} (case insensitive) should not contain {chr!r}'.format(reg=regexp, chr=char))
+    assert not reg.can_contain(char), '{reg!r} (case insensitive) should not contain {chr!r}'.format(reg=regexp, chr=char)
 
 
 def check_positive_startswith(regexp, char, strict):
     reg = Regexp(regexp, case_sensitive=True, strict=strict)
-    assert_true(reg.can_startswith(char),
-                '{reg!r} can start\'s with {chr!r}'.format(reg=regexp, chr=char))
+    assert reg.can_startswith(char), '{reg!r} can start\'s with {chr!r}'.format(reg=regexp, chr=char)
 
     reg = Regexp(regexp, case_sensitive=False, strict=strict)
     char = char.upper()
-    assert_true(reg.can_startswith(char),
-                '{reg!r} (case insensitive) can start\'s with {chr!r}'.format(reg=regexp, chr=char))
+    assert reg.can_startswith(char), '{reg!r} (case insensitive) can start\'s with {chr!r}'.format(reg=regexp, chr=char)
 
 
 def check_negative_startswith(regexp, char, strict):
     reg = Regexp(regexp, case_sensitive=True, strict=strict)
-    assert_false(reg.can_startswith(char),
-                 '{reg!r} can\'t start\'s with {chr!r}'.format(reg=regexp, chr=char))
+    assert not reg.can_startswith(char), '{reg!r} can\'t start\'s with {chr!r}'.format(reg=regexp, chr=char)
 
     reg = Regexp(regexp, case_sensitive=False, strict=strict)
     char = char.upper()
-    assert_false(reg.can_startswith(char),
-                 '{reg!r} (case insensitive) can\'t start\'s with {chr!r}'.format(reg=regexp, chr=char))
+    assert not reg.can_startswith(char), '{reg!r} (case insensitive) can\'t start\'s with {chr!r}'.format(reg=regexp, chr=char)
 
 
 def check_groups_names(regexp, groups):
     reg = Regexp(regexp)
-    assert_equals(set(reg.groups.keys()), set(groups))
+    assert set(reg.groups.keys()) == set(groups)
 
 
 def check_to_string(regexp, string):
     reg = Regexp(regexp)
-    assert_equals(str(reg), string)
+    assert str(reg) == string
 
 
 def check_positive_must_contain(regexp, char):
     reg = Regexp(regexp, case_sensitive=True)
-    assert_true(reg.must_contain(char),
-                '{reg!r} must contain with {chr!r}'.format(reg=regexp, chr=char))
+    assert reg.must_contain(char), '{reg!r} must contain with {chr!r}'.format(reg=regexp, chr=char)
 
     reg = Regexp(regexp, case_sensitive=False)
     char = char.upper()
-    assert_true(reg.must_contain(char),
-                '{reg!r} (case insensitive) must contain with {chr!r}'.format(reg=regexp, chr=char))
+    assert reg.must_contain(char), '{reg!r} (case insensitive) must contain with {chr!r}'.format(reg=regexp, chr=char)
 
 
 def check_negative_must_contain(regexp, char):
     reg = Regexp(regexp, case_sensitive=True)
-    assert_false(reg.must_contain(char),
-                 '{reg!r} must NOT contain with {chr!r}'.format(reg=regexp, chr=char))
+    assert not reg.must_contain(char), '{reg!r} must NOT contain with {chr!r}'.format(reg=regexp, chr=char)
 
     reg = Regexp(regexp, case_sensitive=False)
     char = char.upper()
-    assert_false(reg.must_contain(char),
-                 '{reg!r} (case insensitive) must NOT contain with {chr!r}'.format(reg=regexp, chr=char))
+    assert not reg.must_contain(char), '{reg!r} (case insensitive) must NOT contain with {chr!r}'.format(reg=regexp, chr=char)
 
 
 def check_positive_must_startswith(regexp, char, strict):
     reg = Regexp(regexp, case_sensitive=True, strict=strict)
-    assert_true(reg.must_startswith(char),
-                '{reg!r} MUST start\'s with {chr!r}'.format(reg=regexp, chr=char))
+    assert reg.must_startswith(char), '{reg!r} MUST start\'s with {chr!r}'.format(reg=regexp, chr=char)
 
     reg = Regexp(regexp, case_sensitive=False, strict=strict)
     char = char.upper()
-    assert_true(reg.must_startswith(char),
-                '{reg!r} (case insensitive) MUST start\'s with {chr!r}'.format(reg=regexp, chr=char))
+    assert reg.must_startswith(char), '{reg!r} (case insensitive) MUST start\'s with {chr!r}'.format(reg=regexp, chr=char)
 
 
 def check_negative_must_startswith(regexp, char, strict):
     reg = Regexp(regexp, case_sensitive=True, strict=strict)
-    assert_false(reg.must_startswith(char),
-                 '{reg!r} MUST NOT start\'s with {chr!r}'.format(reg=regexp, chr=char))
+    assert not reg.must_startswith(char), '{reg!r} MUST NOT start\'s with {chr!r}'.format(reg=regexp, chr=char)
 
     reg = Regexp(regexp, case_sensitive=False, strict=strict)
     char = char.upper()
-    assert_false(reg.must_startswith(char),
-                 '{reg!r} (case insensitive) MUST NOT start\'s with {chr!r}'.format(reg=regexp, chr=char))
+    assert not reg.must_startswith(char), '{reg!r} (case insensitive) MUST NOT start\'s with {chr!r}'.format(reg=regexp, chr=char)
 
 
 def check_generate(regexp, values):
     reg = Regexp(regexp)
-    assert_equals(sorted(reg.generate('|', anchored=True)), sorted(values))
+    assert sorted(reg.generate('|', anchored=True)) == sorted(values)
diff --git a/tests/core/test_variable.py b/tests/core/test_variable.py
index 25c813c..47a8451 100644
--- a/tests/core/test_variable.py
+++ b/tests/core/test_variable.py
@@ -15,85 +15,85 @@ def tear_down():
 @with_setup(setup, tear_down)
 def test_literal():
     var = Variable(name='simple', value='$uri', have_script=False)
-    assert_false(var.depends)
-    assert_false(var.regexp)
-    assert_equals(var.value, '$uri')
+    assert not var.depends
+    assert not var.regexp
+    assert var.value == '$uri'
 
-    assert_false(var.can_startswith('$'))
-    assert_false(var.can_contain('i'))
-    assert_true(var.must_contain('$'))
-    assert_true(var.must_contain('u'))
-    assert_false(var.must_contain('a'))
-    assert_true(var.must_startswith('$'))
-    assert_false(var.must_startswith('u'))
+    assert not var.can_startswith('$')
+    assert not var.can_contain('i')
+    assert var.must_contain('$')
+    assert var.must_contain('u')
+    assert not var.must_contain('a')
+    assert var.must_startswith('$')
+    assert not var.must_startswith('u')
 
 
 @with_setup(setup, tear_down)
 def test_regexp():
     var = Variable(name='simple', value=Regexp('^/.*'))
-    assert_false(var.depends)
-    assert_true(var.regexp)
+    assert not var.depends
+    assert var.regexp
 
-    assert_true(var.can_startswith('/'))
-    assert_false(var.can_startswith('a'))
-    assert_true(var.can_contain('a'))
-    assert_false(var.can_contain('\n'))
-    assert_true(var.must_contain('/'))
-    assert_false(var.must_contain('a'))
-    assert_true(var.must_startswith('/'))
-    assert_false(var.must_startswith('a'))
+    assert var.can_startswith('/')
+    assert not var.can_startswith('a')
+    assert var.can_contain('a')
+    assert not var.can_contain('\n')
+    assert var.must_contain('/')
+    assert not var.must_contain('a')
+    assert var.must_startswith('/')
+    assert not var.must_startswith('a')
 
 
 @with_setup(setup, tear_down)
 def test_script():
     get_context().add_var('foo', Variable(name='foo', value=Regexp('.*')))
     var = Variable(name='simple', value='/$foo')
-    assert_true(var.depends)
-    assert_false(var.regexp)
+    assert var.depends
+    assert not var.regexp
 
-    assert_false(var.can_startswith('/'))
-    assert_false(var.can_startswith('a'))
-    assert_true(var.can_contain('/'))
-    assert_true(var.can_contain('a'))
-    assert_false(var.can_contain('\n'))
-    assert_true(var.must_contain('/'))
-    assert_false(var.must_contain('a'))
-    assert_true(var.must_startswith('/'))
-    assert_false(var.must_startswith('a'))
+    assert not var.can_startswith('/')
+    assert not var.can_startswith('a')
+    assert var.can_contain('/')
+    assert var.can_contain('a')
+    assert not var.can_contain('\n')
+    assert var.must_contain('/')
+    assert not var.must_contain('a')
+    assert var.must_startswith('/')
+    assert not var.must_startswith('a')
 
 
 @with_setup(setup, tear_down)
 def test_regexp_boundary():
     var = Variable(name='simple', value=Regexp('.*'), boundary=Regexp('/[a-z]', strict=True))
-    assert_false(var.depends)
-    assert_true(var.regexp)
+    assert not var.depends
+    assert var.regexp
 
-    assert_true(var.can_startswith('/'))
-    assert_false(var.can_startswith('a'))
-    assert_false(var.can_contain('/'))
-    assert_true(var.can_contain('a'))
-    assert_false(var.can_contain('0'))
-    assert_false(var.can_contain('\n'))
-    assert_true(var.must_contain('/'))
-    assert_false(var.must_contain('a'))
-    assert_true(var.must_startswith('/'))
-    assert_false(var.must_startswith('a'))
+    assert var.can_startswith('/')
+    assert not var.can_startswith('a')
+    assert not var.can_contain('/')
+    assert var.can_contain('a')
+    assert not var.can_contain('0')
+    assert not var.can_contain('\n')
+    assert var.must_contain('/')
+    assert not var.must_contain('a')
+    assert var.must_startswith('/')
+    assert not var.must_startswith('a')
 
 
 @with_setup(setup, tear_down)
 def test_script_boundary():
     get_context().add_var('foo', Variable(name='foo', value=Regexp('.*'), boundary=Regexp('[a-z]', strict=True)))
     var = Variable(name='simple', value='/$foo', boundary=Regexp('[/a-z0-9]', strict=True))
-    assert_true(var.depends)
-    assert_false(var.regexp)
+    assert var.depends
+    assert not var.regexp
 
-    assert_false(var.can_startswith('/'))
-    assert_false(var.can_startswith('a'))
-    assert_false(var.can_contain('/'))
-    assert_true(var.can_contain('a'))
-    assert_false(var.can_contain('\n'))
-    assert_false(var.can_contain('0'))
-    assert_true(var.must_contain('/'))
-    assert_false(var.must_contain('a'))
-    assert_true(var.must_startswith('/'))
-    assert_false(var.must_startswith('a'))
+    assert not var.can_startswith('/')
+    assert not var.can_startswith('a')
+    assert not var.can_contain('/')
+    assert var.can_contain('a')
+    assert not var.can_contain('\n')
+    assert not var.can_contain('0')
+    assert var.must_contain('/')
+    assert not var.must_contain('a')
+    assert var.must_startswith('/')
+    assert not var.must_startswith('a')
diff --git a/tests/directives/test_block.py b/tests/directives/test_block.py
index 2ed859f..e878a0f 100644
--- a/tests/directives/test_block.py
+++ b/tests/directives/test_block.py
@@ -14,10 +14,10 @@ def test_block():
     config = 'some {some;}'
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, Block)
-    assert_true(directive.is_block)
-    assert_true(directive.self_context)
-    assert_false(directive.provide_variables)
+    assert isinstance(directive, Block)
+    assert directive.is_block
+    assert directive.self_context
+    assert not directive.provide_variables
 
 
 def test_http():
@@ -30,10 +30,10 @@ http {
     '''
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, HttpBlock)
-    assert_true(directive.is_block)
-    assert_true(directive.self_context)
-    assert_false(directive.provide_variables)
+    assert isinstance(directive, HttpBlock)
+    assert directive.is_block
+    assert directive.self_context
+    assert not directive.provide_variables
 
 
 def test_server():
@@ -47,11 +47,11 @@ server {
     '''
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, ServerBlock)
-    assert_true(directive.is_block)
-    assert_true(directive.self_context)
-    assert_equals([d.args[0] for d in directive.get_names()], ['_', 'cool.io'])
-    assert_false(directive.provide_variables)
+    assert isinstance(directive, ServerBlock)
+    assert directive.is_block
+    assert directive.self_context
+    assert [d.args[0] for d in directive.get_names()] == ['_', 'cool.io']
+    assert not directive.provide_variables
 
 
 def test_location():
@@ -61,13 +61,13 @@ location / {
     '''
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, LocationBlock)
-    assert_true(directive.is_block)
-    assert_true(directive.self_context)
-    assert_true(directive.provide_variables)
-    assert_is_none(directive.modifier)
-    assert_equals(directive.path, '/')
-    assert_false(directive.is_internal)
+    assert isinstance(directive, LocationBlock)
+    assert directive.is_block
+    assert directive.self_context
+    assert directive.provide_variables
+    assert directive.modifier is None
+    assert directive.path == '/'
+    assert not directive.is_internal
 
 
 def test_location_internal():
@@ -78,8 +78,8 @@ location / {
     '''
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, LocationBlock)
-    assert_true(directive.is_internal)
+    assert isinstance(directive, LocationBlock)
+    assert directive.is_internal
 
 
 def test_location_modifier():
@@ -89,9 +89,9 @@ location = / {
     '''
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, LocationBlock)
-    assert_equals(directive.modifier, '=')
-    assert_equals(directive.path, '/')
+    assert isinstance(directive, LocationBlock)
+    assert directive.modifier == '='
+    assert directive.path == '/'
 
 
 def test_if():
@@ -101,13 +101,13 @@ if ($some) {
     '''
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, IfBlock)
-    assert_true(directive.is_block)
-    assert_false(directive.self_context)
-    assert_false(directive.provide_variables)
-    assert_equals(directive.variable, '$some')
-    assert_is_none(directive.operand)
-    assert_is_none(directive.value)
+    assert isinstance(directive, IfBlock)
+    assert directive.is_block
+    assert not directive.self_context
+    assert not directive.provide_variables
+    assert directive.variable == '$some'
+    assert directive.operand is None
+    assert directive.value is None
 
 
 def test_if_modifier():
@@ -117,10 +117,10 @@ if (-f /some) {
     '''
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, IfBlock)
-    assert_equals(directive.operand, '-f')
-    assert_equals(directive.value, '/some')
-    assert_is_none(directive.variable)
+    assert isinstance(directive, IfBlock)
+    assert directive.operand == '-f'
+    assert directive.value == '/some'
+    assert directive.variable is None
 
 
 def test_if_variable():
@@ -130,10 +130,10 @@ if ($http_some = '/some') {
     '''
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, IfBlock)
-    assert_equals(directive.variable, '$http_some')
-    assert_equals(directive.operand, '=')
-    assert_equals(directive.value, '/some')
+    assert isinstance(directive, IfBlock)
+    assert directive.variable == '$http_some'
+    assert directive.operand == '='
+    assert directive.value == '/some'
 
 
 def test_block_some_flat():
@@ -150,8 +150,8 @@ def test_block_some_flat():
     directive = _get_parsed(config)
     for d in ['default_type', 'sendfile', 'keepalive_timeout']:
         c = directive.some(d, flat=True)
-        assert_is_not_none(c)
-        assert_equals(c.name, d)
+        assert c is not None
+        assert c.name == d
 
 
 def test_block_some_not_flat():
@@ -167,7 +167,7 @@ def test_block_some_not_flat():
 
     directive = _get_parsed(config)
     c = directive.some('keepalive_timeout', flat=False)
-    assert_is_none(c)
+    assert c is None
 
 
 def test_block_find_flat():
@@ -182,9 +182,9 @@ def test_block_find_flat():
 
     directive = _get_parsed(config)
     finds = directive.find('directive', flat=True)
-    assert_equals(len(finds), 2)
-    assert_equals([x.name for x in finds], ['directive', 'directive'])
-    assert_equals([x.args[0] for x in finds], ['1', '2'])
+    assert len(finds) == 2
+    assert [x.name for x in finds] == ['directive', 'directive']
+    assert [x.args[0] for x in finds] == ['1', '2']
 
 
 def test_block_find_not_flat():
@@ -199,9 +199,9 @@ def test_block_find_not_flat():
 
     directive = _get_parsed(config)
     finds = directive.find('directive', flat=False)
-    assert_equals(len(finds), 1)
-    assert_equals([x.name for x in finds], ['directive'])
-    assert_equals([x.args[0] for x in finds], ['1'])
+    assert len(finds) == 1
+    assert [x.name for x in finds] == ['directive']
+    assert [x.args[0] for x in finds] == ['1']
 
 
 def test_block_map():
@@ -213,11 +213,11 @@ map $some_var $some_other_var {
     '''
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, MapBlock)
-    assert_true(directive.is_block)
-    assert_false(directive.self_context)
-    assert_true(directive.provide_variables)
-    assert_equals(directive.variable, 'some_other_var')
+    assert isinstance(directive, MapBlock)
+    assert directive.is_block
+    assert not directive.self_context
+    assert directive.provide_variables
+    assert directive.variable == 'some_other_var'
 
 
 def test_block_geo_two_vars():
@@ -229,11 +229,11 @@ geo $some_var $some_other_var {
     '''
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, GeoBlock)
-    assert_true(directive.is_block)
-    assert_false(directive.self_context)
-    assert_true(directive.provide_variables)
-    assert_equals(directive.variable, 'some_other_var')
+    assert isinstance(directive, GeoBlock)
+    assert directive.is_block
+    assert not directive.self_context
+    assert directive.provide_variables
+    assert directive.variable == 'some_other_var'
 
 
 def test_block_geo_one_var():
@@ -245,8 +245,8 @@ geo $some_var {
     '''
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, GeoBlock)
-    assert_true(directive.is_block)
-    assert_false(directive.self_context)
-    assert_true(directive.provide_variables)
-    assert_equals(directive.variable, 'some_var')
+    assert isinstance(directive, GeoBlock)
+    assert directive.is_block
+    assert not directive.self_context
+    assert directive.provide_variables
+    assert directive.variable == 'some_var'
diff --git a/tests/directives/test_directive.py b/tests/directives/test_directive.py
index e94cf2b..53fd766 100644
--- a/tests/directives/test_directive.py
+++ b/tests/directives/test_directive.py
@@ -12,89 +12,89 @@ def test_directive():
     config = 'some "foo" "bar";'
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, Directive)
-    assert_equals(directive.name, 'some')
-    assert_equals(directive.args, ['foo', 'bar'])
-    assert_equals(str(directive), 'some foo bar;')
+    assert isinstance(directive, Directive)
+    assert directive.name == 'some'
+    assert directive.args == ['foo', 'bar']
+    assert str(directive) == 'some foo bar;'
 
 
 def test_add_header():
     config = 'add_header "X-Foo" "bar";'
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, AddHeaderDirective)
-    assert_equals(directive.name, 'add_header')
-    assert_equals(directive.args, ['X-Foo', 'bar'])
-    assert_equals(directive.header, 'x-foo')
-    assert_equals(directive.value, 'bar')
-    assert_false(directive.always)
-    assert_equals(str(directive), 'add_header X-Foo bar;')
+    assert isinstance(directive, AddHeaderDirective)
+    assert directive.name == 'add_header'
+    assert directive.args == ['X-Foo', 'bar']
+    assert directive.header == 'x-foo'
+    assert directive.value == 'bar'
+    assert not directive.always
+    assert str(directive) == 'add_header X-Foo bar;'
 
 
 def test_add_header_always():
     config = 'add_header "X-Foo" "bar" always;'
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, AddHeaderDirective)
-    assert_equals(directive.name, 'add_header')
-    assert_equals(directive.args, ['X-Foo', 'bar', 'always'])
-    assert_equals(directive.header, 'x-foo')
-    assert_equals(directive.value, 'bar')
-    assert_true(directive.always)
-    assert_equals(str(directive), 'add_header X-Foo bar always;')
+    assert isinstance(directive, AddHeaderDirective)
+    assert directive.name == 'add_header'
+    assert directive.args == ['X-Foo', 'bar', 'always']
+    assert directive.header == 'x-foo'
+    assert directive.value == 'bar'
+    assert directive.always
+    assert str(directive) == 'add_header X-Foo bar always;'
 
 
 def test_set():
     config = 'set $foo bar;'
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, SetDirective)
-    assert_equals(directive.name, 'set')
-    assert_equals(directive.args, ['$foo', 'bar'])
-    assert_equals(directive.variable, 'foo')
-    assert_equals(directive.value, 'bar')
-    assert_equals(str(directive), 'set $foo bar;')
-    assert_true(directive.provide_variables)
+    assert isinstance(directive, SetDirective)
+    assert directive.name == 'set'
+    assert directive.args == ['$foo', 'bar']
+    assert directive.variable == 'foo'
+    assert directive.value == 'bar'
+    assert str(directive) == 'set $foo bar;'
+    assert directive.provide_variables
 
 
 def test_rewrite():
     config = 'rewrite ^ http://some;'
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, RewriteDirective)
-    assert_equals(directive.name, 'rewrite')
-    assert_equals(directive.args, ['^', 'http://some'])
-    assert_equals(str(directive), 'rewrite ^ http://some;')
-    assert_true(directive.provide_variables)
+    assert isinstance(directive, RewriteDirective)
+    assert directive.name == 'rewrite'
+    assert directive.args == ['^', 'http://some']
+    assert str(directive) == 'rewrite ^ http://some;'
+    assert directive.provide_variables
 
-    assert_equals(directive.pattern, '^')
-    assert_equals(directive.replace, 'http://some')
-    assert_equals(directive.flag, None)
+    assert directive.pattern == '^'
+    assert directive.replace == 'http://some'
+    assert directive.flag == None
 
 
 def test_rewrite_flags():
     config = 'rewrite ^/(.*)$ http://some/$1 redirect;'
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, RewriteDirective)
-    assert_equals(directive.name, 'rewrite')
-    assert_equals(directive.args, ['^/(.*)$', 'http://some/$1', 'redirect'])
-    assert_equals(str(directive), 'rewrite ^/(.*)$ http://some/$1 redirect;')
-    assert_true(directive.provide_variables)
+    assert isinstance(directive, RewriteDirective)
+    assert directive.name == 'rewrite'
+    assert directive.args == ['^/(.*)$', 'http://some/$1', 'redirect']
+    assert str(directive) == 'rewrite ^/(.*)$ http://some/$1 redirect;'
+    assert directive.provide_variables
 
-    assert_equals(directive.pattern, '^/(.*)$')
-    assert_equals(directive.replace, 'http://some/$1')
-    assert_equals(directive.flag, 'redirect')
+    assert directive.pattern == '^/(.*)$'
+    assert directive.replace == 'http://some/$1'
+    assert directive.flag == 'redirect'
 
 
 def test_root():
     config = 'root /var/www/html;'
 
     directive = _get_parsed(config)
-    assert_is_instance(directive, RootDirective)
-    assert_equals(directive.name, 'root')
-    assert_equals(directive.args, ['/var/www/html'])
-    assert_equals(str(directive), 'root /var/www/html;')
-    assert_true(directive.provide_variables)
+    assert isinstance(directive, RootDirective)
+    assert directive.name == 'root'
+    assert directive.args == ['/var/www/html']
+    assert str(directive) == 'root /var/www/html;'
+    assert directive.provide_variables
 
-    assert_equals(directive.path, '/var/www/html')
+    assert directive.path == '/var/www/html'
diff --git a/tests/parser/test_nginx_parser.py b/tests/parser/test_nginx_parser.py
index 4eb209e..a488c2b 100644
--- a/tests/parser/test_nginx_parser.py
+++ b/tests/parser/test_nginx_parser.py
@@ -64,38 +64,38 @@ server {
     '''
 
     tree = _parse(config)
-    assert_is_instance(tree, Directive)
-    assert_is_instance(tree, Block)
-    assert_is_instance(tree, Root)
+    assert isinstance(tree, Directive)
+    assert isinstance(tree, Block)
+    assert isinstance(tree, Root)
 
-    assert_equal(len(tree.children), 1)
+    assert len(tree.children) == 1
     http = tree.children[0]
-    assert_is_instance(http, Directive)
-    assert_is_instance(http, Block)
-    assert_is_instance(http, HttpBlock)
+    assert isinstance(http, Directive)
+    assert isinstance(http, Block)
+    assert isinstance(http, HttpBlock)
 
-    assert_equal(len(http.children), 1)
+    assert len(http.children) == 1
     include_server = http.children[0]
-    assert_is_instance(include_server, Directive)
-    assert_is_instance(include_server, IncludeBlock)
-    assert_equal(include_server.file_path, '/etc/nginx/sites/default.conf')
+    assert isinstance(include_server, Directive)
+    assert isinstance(include_server, IncludeBlock)
+    assert include_server.file_path == '/etc/nginx/sites/default.conf'
 
-    assert_equal(len(include_server.children), 1)
+    assert len(include_server.children) == 1
     server = include_server.children[0]
-    assert_is_instance(server, Directive)
-    assert_is_instance(server, Block)
-    assert_is_instance(server, ServerBlock)
+    assert isinstance(server, Directive)
+    assert isinstance(server, Block)
+    assert isinstance(server, ServerBlock)
 
-    assert_equal(len(server.children), 1)
+    assert len(server.children) == 1
     include_listen = server.children[0]
-    assert_is_instance(include_listen, Directive)
-    assert_is_instance(include_listen, IncludeBlock)
-    assert_equal(include_listen.file_path, '/etc/nginx/conf.d/listen')
+    assert isinstance(include_listen, Directive)
+    assert isinstance(include_listen, IncludeBlock)
+    assert include_listen.file_path == '/etc/nginx/conf.d/listen'
 
-    assert_equal(len(include_listen.children), 1)
+    assert len(include_listen.children) == 1
     listen = include_listen.children[0]
-    assert_is_instance(listen, Directive)
-    assert_equal(listen.args, ['80'])
+    assert isinstance(listen, Directive)
+    assert listen.args == ['80']
 
 
 def test_encoding():
@@ -109,10 +109,10 @@ def test_encoding():
 
 def assert_config(config, expected):
     tree = _parse(config)
-    assert_is_instance(tree, Directive)
-    assert_is_instance(tree, Block)
-    assert_is_instance(tree, Root)
+    assert isinstance(tree, Directive)
+    assert isinstance(tree, Block)
+    assert isinstance(tree, Root)
 
     child = tree.children[0]
     for ex in expected:
-        assert_is_instance(child, ex)
+        assert isinstance(child, ex)
diff --git a/tests/parser/test_raw_parser.py b/tests/parser/test_raw_parser.py
index 7fa4b01..dec851b 100644
--- a/tests/parser/test_raw_parser.py
+++ b/tests/parser/test_raw_parser.py
@@ -556,9 +556,9 @@ add_header X-Test "Windows-1251";
         '''
 
     actual = RawParser().parse(config)
-    assert_equals(len(actual.asList()), 2)
+    assert len(actual.asList()) == 2
 
 
 def assert_config(config, expected):
     actual = RawParser().parse(config)
-    assert_equals(actual.asList(), expected)
+    assert actual.asList() == expected
diff --git a/tests/plugins/test_simply.py b/tests/plugins/test_simply.py
index b0451be..b619986 100644
--- a/tests/plugins/test_simply.py
+++ b/tests/plugins/test_simply.py
@@ -53,10 +53,8 @@ def test_from_config():
     manager = PluginsManager()
     for plugin in manager.plugins:
         plugin = plugin.name
-        assert_true(plugin in tested_plugins,
-                    'Plugin {name!r} should have at least one simple test config'.format(name=plugin))
-        assert_true(plugin in tested_fp_plugins,
-                    'Plugin {name!r} should have at least one simple test config with false positive'.format(name=plugin))
+        assert plugin in tested_plugins, 'Plugin {name!r} should have at least one simple test config'.format(name=plugin)
+        assert plugin in tested_fp_plugins, 'Plugin {name!r} should have at least one simple test config with false positive'.format(name=plugin)
 
 
 def parse_plugin_options(config_path):
@@ -85,24 +83,22 @@ def check_configuration(plugin, config_path, test_config):
         formatter.feed(config_path, yoda)
         _, results = formatter.reports.popitem()
 
-        assert_equals(len(results), 1, 'Should have one report')
+        assert len(results) == 1, 'Should have one report'
         result = results[0]
 
         if 'severity' in test_config:
             if not hasattr(test_config['severity'], '__iter__'):
-                assert_equals(result['severity'], test_config['severity'])
+                assert result['severity'] == test_config['severity']
             else:
-                assert_in(result['severity'], test_config['severity'])
-        assert_equals(result['plugin'], plugin)
-        assert_true(result['summary'])
-        assert_true(result['description'])
-        assert_true(result['config'])
-        assert_true(result['help_url'].startswith('https://'),
-                    'help_url must starts with https://. It\'is URL!')
+                assert result['severity'] in test_config['severity']
+        assert result['plugin'] == plugin
+        assert result['summary']
+        assert result['description']
+        assert result['config']
+        assert result['help_url'].startswith('https://'), 'help_url must starts with https://. It\'is URL!'
 
 
 def check_configuration_fp(plugin, config_path, test_config):
     with yoda_provider(plugin) as yoda:
         yoda.audit(config_path, open(config_path, mode='r'))
-        assert_equals(len([x for x in yoda.results]), 0,
-                      'False positive configuration must not trigger any plugins')
+        assert len([x for x in yoda.results]) == 0, 'False positive configuration must not trigger any plugins'