tests: Fix style warnings around assert usage

assert is not a function. Latest pycodestyle and flake8 warn about this.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

tests/test_build_system.py

@@ -33,12 +33,12 @@ def test_build_system(changedir, tmpdir):
 
     kas.kas(['shell', 'test-oe.yml', '-c', 'true'])
     with open('build-env', 'r') as f:
-        assert(f.readline().strip() == 'openembedded')
+        assert f.readline().strip() == 'openembedded'
 
     kas.kas(['shell', 'test-isar.yml', '-c', 'true'])
     with open('build-env', 'r') as f:
-        assert(f.readline().strip() == 'isar')
+        assert f.readline().strip() == 'isar'
 
     kas.kas(['shell', 'test-openembedded.yml', '-c', 'true'])
     with open('build-env', 'r') as f:
-        assert(f.readline().strip() == 'openembedded')
+        assert f.readline().strip() == 'openembedded'

tests/test_commands.py

@@ -36,11 +36,11 @@ def test_for_all_repos(changedir, tmpdir):
                      >> %s/ref_${KAS_REPO_NAME}; fi''' % (tdir)])
 
     with open('ref_kas_1.0', 'r') as f:
-        assert(f.readline().strip()
-               == '907816a5c4094b59a36aec12226e71c461c05b77')
+        assert f.readline().strip() \
+            == '907816a5c4094b59a36aec12226e71c461c05b77'
     with open('ref_kas_1.1', 'r') as f:
-        assert(f.readline().strip()
-               == 'e9ca55a239caa1a2098e1d48773a29ea53c6cab2')
+        assert f.readline().strip() \
+            == 'e9ca55a239caa1a2098e1d48773a29ea53c6cab2'
 
 
 def test_checkout(changedir, tmpdir):
@@ -53,11 +53,11 @@ def test_checkout(changedir, tmpdir):
     # Ensure that local.conf and bblayers.conf are populated, check that no
     # build has been executed by ensuring that no tmp, sstate-cache or
     # downloads directories are present.
-    assert(os.path.exists('build/conf/local.conf'))
-    assert(os.path.exists('build/conf/bblayers.conf'))
-    assert(not glob.glob('build/tmp*'))
-    assert(not os.path.exists('build/downloads'))
-    assert(not os.path.exists('build/sstate-cache'))
+    assert os.path.exists('build/conf/local.conf')
+    assert os.path.exists('build/conf/bblayers.conf')
+    assert not glob.glob('build/tmp*')
+    assert not os.path.exists('build/downloads')
+    assert not os.path.exists('build/sstate-cache')
 
 
 def test_repo_includes(changedir, tmpdir):

tests/test_environment_variables.py

@@ -12,7 +12,7 @@ def test_build_dir_is_placed_inside_work_dir_by_default(changedir, tmpdir):
 
     kas.kas(['checkout', 'test.yml'])
 
-    assert(os.path.exists(os.path.join(os.getcwd(), 'build', 'conf')))
+    assert os.path.exists(os.path.join(os.getcwd(), 'build', 'conf'))
 
 
 def test_build_dir_can_be_specified_by_environment_variable(changedir, tmpdir):
@@ -27,4 +27,4 @@ def test_build_dir_can_be_specified_by_environment_variable(changedir, tmpdir):
     kas.kas(['checkout', 'test.yml'])
     del os.environ['KAS_BUILD_DIR']
 
-    assert(os.path.exists(os.path.join(build_dir, 'conf')))
+    assert os.path.exists(os.path.join(build_dir, 'conf'))

tests/test_layers.py

@@ -46,7 +46,7 @@ def test_layers_default(dokas):
         for line in f:
             if '{}/kas '.format(LAYERBASE) in line:
                 match += 1
-    assert(match == 1)
+    assert match == 1
 
 
 def test_layers_include(dokas):
@@ -55,17 +55,17 @@ def test_layers_include(dokas):
         for line in f:
             if '{}/kas1/meta-'.format(LAYERBASE) in line:
                 match += 1
-    assert(match == 2)
+    assert match == 2
 
 
 def test_layers_exclude(dokas):
     with open('build/conf/bblayers.conf', 'r') as f:
         for line in f:
-            assert('{}/kas2'.format(LAYERBASE) not in line)
+            assert '{}/kas2'.format(LAYERBASE) not in line
 
 
 def test_layers_strip_dot(dokas):
     with open('build/conf/bblayers.conf', 'r') as f:
         lines = f.readlines()
-        assert(any('{}/kas3 '.format(LAYERBASE) in x for x in lines))
-        assert(any('{}/kas3/meta-bar'.format(LAYERBASE) in x for x in lines))
+        assert any('{}/kas3 '.format(LAYERBASE) in x for x in lines)
+        assert any('{}/kas3/meta-bar'.format(LAYERBASE) in x for x in lines)