Tests: isolation check moved to the pytest_sessionstart().

This change eliminates the need for some classes
to run Unit one more time before running tests.

10 files changed, 197 insertions, 259 deletions

diff --git a/test/conftest.py b/test/conftest.py
index 6783f16d..07d5f059 100644
--- a/test/conftest.py
+++ b/test/conftest.py
@@ -17,6 +17,7 @@ import pytest
 from unit.check.go import check_go
 from unit.check.node import check_node
 from unit.check.tls import check_openssl
+from unit.check.isolation import check_isolation
 from unit.option import option
 from unit.utils import public_dir
 from unit.utils import waitforfiles
@@ -123,6 +124,7 @@ def pytest_sessionstart(session):
     option.available = {'modules': {}, 'features': {}}
 
     unit = unit_run()
+    option.temp_dir = unit['temp_dir']
 
     # read unit.log
 
@@ -161,6 +163,8 @@ def pytest_sessionstart(session):
         k: v for k, v in option.available['modules'].items() if v is not None
     }
 
+    check_isolation()
+
     unit_stop()
 
     _check_alerts()
diff --git a/test/test_go_isolation.py b/test/test_go_isolation.py
index ac12c8ca..48c1b80c 100644
--- a/test/test_go_isolation.py
+++ b/test/test_go_isolation.py
@@ -5,31 +5,13 @@ import shutil
 
 import pytest
 
-from conftest import unit_run
-from conftest import unit_stop
 from unit.applications.lang.go import TestApplicationGo
-from unit.feature.isolation import TestFeatureIsolation
 from unit.option import option
+from unit.utils import getns
 
 class TestGoIsolation(TestApplicationGo):
     prerequisites = {'modules': {'go': 'any'}, 'features': ['isolation']}
 
-    isolation = TestFeatureIsolation()
-
-    @classmethod
-    def setup_class(cls, complete_check=True):
-        check = super().setup_class(complete_check=False)
-
-        unit = unit_run()
-        option.temp_dir = unit['temp_dir']
-
-        TestFeatureIsolation().check(option.available, unit['temp_dir'])
-
-        assert unit_stop() is None
-        shutil.rmtree(unit['temp_dir'])
-
-        return check if not complete_check else check()
-
     def unpriv_creds(self):
         nobody_uid = pwd.getpwnam('nobody').pw_uid
 
@@ -219,8 +201,8 @@ class TestGoIsolation(TestApplicationGo):
                     == option.available['features']['isolation'][ns]
                 ), ('%s match' % ns)
 
-        assert obj['NS']['MNT'] != self.isolation.getns('mnt'), 'mnt set'
-        assert obj['NS']['USER'] != self.isolation.getns('user'), 'user set'
+        assert obj['NS']['MNT'] != getns('mnt'), 'mnt set'
+        assert obj['NS']['USER'] != getns('user'), 'user set'
 
     def test_isolation_pid(self, is_su):
         if not self.isolation_key('pid'):
diff --git a/test/test_php_isolation.py b/test/test_php_isolation.py
index 1d0b0614..b0fea383 100644
--- a/test/test_php_isolation.py
+++ b/test/test_php_isolation.py
@@ -2,30 +2,13 @@ import shutil
 
 import pytest
 
-from conftest import unit_run
-from conftest import unit_stop
 from unit.applications.lang.php import TestApplicationPHP
-from unit.feature.isolation import TestFeatureIsolation
 from unit.option import option
 
 
 class TestPHPIsolation(TestApplicationPHP):
     prerequisites = {'modules': {'php': 'any'}, 'features': ['isolation']}
 
-    @classmethod
-    def setup_class(cls, complete_check=True):
-        check = super().setup_class(complete_check=False)
-
-        unit = unit_run()
-        option.temp_dir = unit['temp_dir']
-
-        TestFeatureIsolation().check(option.available, unit['temp_dir'])
-
-        assert unit_stop() is None
-        shutil.rmtree(unit['temp_dir'])
-
-        return check if not complete_check else check()
-
     def test_php_isolation_rootfs(self, is_su, temp_dir):
         isolation_features = option.available['features']['isolation'].keys()
 
diff --git a/test/test_python_isolation.py b/test/test_python_isolation.py
index 66ff2f16..ad830269 100644
--- a/test/test_python_isolation.py
+++ b/test/test_python_isolation.py
@@ -2,30 +2,13 @@ import shutil
 
 import pytest
 
-from conftest import unit_run
-from conftest import unit_stop
 from unit.applications.lang.python import TestApplicationPython
-from unit.feature.isolation import TestFeatureIsolation
 from unit.option import option
 
 
 class TestPythonIsolation(TestApplicationPython):
     prerequisites = {'modules': {'python': 'any'}, 'features': ['isolation']}
 
-    @classmethod
-    def setup_class(cls, complete_check=True):
-        check = super().setup_class(complete_check=False)
-
-        unit = unit_run()
-        option.temp_dir = unit['temp_dir']
-
-        TestFeatureIsolation().check(option.available, unit['temp_dir'])
-
-        assert unit_stop() is None
-        shutil.rmtree(unit['temp_dir'])
-
-        return check if not complete_check else check()
-
     def test_python_isolation_rootfs(self, is_su, temp_dir):
         isolation_features = option.available['features']['isolation'].keys()
 
diff --git a/test/test_python_isolation_chroot.py b/test/test_python_isolation_chroot.py
index 8018d5b9..7f559bcc 100644
--- a/test/test_python_isolation_chroot.py
+++ b/test/test_python_isolation_chroot.py
@@ -1,7 +1,6 @@
 import pytest
 
 from unit.applications.lang.python import TestApplicationPython
-from unit.feature.isolation import TestFeatureIsolation
 
 
 class TestPythonIsolation(TestApplicationPython):
diff --git a/test/test_ruby_isolation.py b/test/test_ruby_isolation.py
index 8c382e5a..fab428e9 100644
--- a/test/test_ruby_isolation.py
+++ b/test/test_ruby_isolation.py
@@ -3,30 +3,13 @@ import shutil
 import os
 import pytest
 
-from conftest import unit_run
-from conftest import unit_stop
 from unit.applications.lang.ruby import TestApplicationRuby
-from unit.feature.isolation import TestFeatureIsolation
 from unit.option import option
 
 
 class TestRubyIsolation(TestApplicationRuby):
     prerequisites = {'modules': {'ruby': 'any'}, 'features': ['isolation']}
 
-    @classmethod
-    def setup_class(cls, complete_check=True):
-        check = super().setup_class(complete_check=False)
-
-        unit = unit_run()
-        option.temp_dir = unit['temp_dir']
-
-        TestFeatureIsolation().check(option.available, unit['temp_dir'])
-
-        assert unit_stop() is None
-        shutil.rmtree(unit['temp_dir'])
-
-        return check if not complete_check else check()
-
     def test_ruby_isolation_rootfs(self, is_su):
         isolation_features = option.available['features']['isolation'].keys()
 
diff --git a/test/unit/check/isolation.py b/test/unit/check/isolation.py
new file mode 100644
index 00000000..bb8feed1
--- /dev/null
+++ b/test/unit/check/isolation.py
@@ -0,0 +1,158 @@
+import json
+import os
+
+from unit.applications.lang.go import TestApplicationGo
+from unit.applications.lang.java import TestApplicationJava
+from unit.applications.lang.node import TestApplicationNode
+from unit.applications.proto import TestApplicationProto
+from unit.http import TestHTTP
+from unit.option import option
+from unit.utils import getns
+
+allns = ['pid', 'mnt', 'ipc', 'uts', 'cgroup', 'net']
+http = TestHTTP()
+
+def check_isolation():
+    test_conf = {"namespaces": {"credential": True}}
+    available = option.available
+
+    conf = ''
+    if 'go' in available['modules']:
+        TestApplicationGo().prepare_env('empty', 'app')
+
+        conf = {
+            "listeners": {"*:7080": {"pass": "applications/empty"}},
+            "applications": {
+                "empty": {
+                    "type": "external",
+                    "processes": {"spare": 0},
+                    "working_directory": option.test_dir + "/go/empty",
+                    "executable": option.temp_dir + "/go/app",
+                    "isolation": {"namespaces": {"credential": True}},
+                },
+            },
+        }
+
+    elif 'python' in available['modules']:
+        conf = {
+            "listeners": {"*:7080": {"pass": "applications/empty"}},
+            "applications": {
+                "empty": {
+                    "type": "python",
+                    "processes": {"spare": 0},
+                    "path": option.test_dir + "/python/empty",
+                    "working_directory": option.test_dir + "/python/empty",
+                    "module": "wsgi",
+                    "isolation": {"namespaces": {"credential": True}},
+                }
+            },
+        }
+
+    elif 'php' in available['modules']:
+        conf = {
+            "listeners": {"*:7080": {"pass": "applications/phpinfo"}},
+            "applications": {
+                "phpinfo": {
+                    "type": "php",
+                    "processes": {"spare": 0},
+                    "root": option.test_dir + "/php/phpinfo",
+                    "working_directory": option.test_dir + "/php/phpinfo",
+                    "index": "index.php",
+                    "isolation": {"namespaces": {"credential": True}},
+                }
+            },
+        }
+
+    elif 'ruby' in available['modules']:
+        conf = {
+            "listeners": {"*:7080": {"pass": "applications/empty"}},
+            "applications": {
+                "empty": {
+                    "type": "ruby",
+                    "processes": {"spare": 0},
+                    "working_directory": option.test_dir + "/ruby/empty",
+                    "script": option.test_dir + "/ruby/empty/config.ru",
+                    "isolation": {"namespaces": {"credential": True}},
+                }
+            },
+        }
+
+    elif 'java' in available['modules']:
+        TestApplicationJava().prepare_env('empty')
+
+        conf = {
+            "listeners": {"*:7080": {"pass": "applications/empty"}},
+            "applications": {
+                "empty": {
+                    "unit_jars": option.current_dir + "/build",
+                    "type": "java",
+                    "processes": {"spare": 0},
+                    "working_directory": option.test_dir + "/java/empty/",
+                    "webapp": option.temp_dir + "/java",
+                    "isolation": {"namespaces": {"credential": True}},
+                }
+            },
+        }
+
+    elif 'node' in available['modules']:
+        TestApplicationNode().prepare_env('basic')
+
+        conf = {
+            "listeners": {"*:7080": {"pass": "applications/basic"}},
+            "applications": {
+                "basic": {
+                    "type": "external",
+                    "processes": {"spare": 0},
+                    "working_directory": option.temp_dir + "/node",
+                    "executable": "app.js",
+                    "isolation": {"namespaces": {"credential": True}},
+                }
+            },
+        }
+
+    elif 'perl' in available['modules']:
+        conf = {
+            "listeners": {"*:7080": {"pass": "applications/body_empty"}},
+            "applications": {
+                "body_empty": {
+                    "type": "perl",
+                    "processes": {"spare": 0},
+                    "working_directory": option.test_dir
+                    + "/perl/body_empty",
+                    "script": option.test_dir + "/perl/body_empty/psgi.pl",
+                    "isolation": {"namespaces": {"credential": True}},
+                }
+            },
+        }
+
+    else:
+        return
+
+    resp = http.put(
+        url='/config',
+        sock_type='unix',
+        addr=option.temp_dir + '/control.unit.sock',
+        body=json.dumps(conf),
+    )
+
+    if 'success' not in resp:
+        return
+
+    userns = getns('user')
+    if not userns:
+        return
+
+    available['features']['isolation'] = {'user': userns}
+
+    unp_clone_path = '/proc/sys/kernel/unprivileged_userns_clone'
+    if os.path.exists(unp_clone_path):
+        with open(unp_clone_path, 'r') as f:
+            if str(f.read()).rstrip() == '1':
+                available['features']['isolation'][
+                    'unprivileged_userns_clone'
+                ] = True
+
+    for ns in allns:
+        ns_value = getns(ns)
+        if ns_value:
+            available['features']['isolation'][ns] = ns_value
diff --git a/test/unit/feature/isolation.py b/test/unit/feature/isolation.py
deleted file mode 100644
index d8f68919..00000000
--- a/test/unit/feature/isolation.py
+++ /dev/null
@@ -1,160 +0,0 @@
-import os
-
-from unit.applications.lang.go import TestApplicationGo
-from unit.applications.lang.java import TestApplicationJava
-from unit.applications.lang.node import TestApplicationNode
-from unit.applications.proto import TestApplicationProto
-from unit.option import option
-
-
-class TestFeatureIsolation(TestApplicationProto):
-    allns = ['pid', 'mnt', 'ipc', 'uts', 'cgroup', 'net']
-
-    def check(self, available, temp_dir):
-        test_conf = {"namespaces": {"credential": True}}
-
-        conf = ''
-        if 'go' in available['modules']:
-            TestApplicationGo().prepare_env('empty', 'app')
-
-            conf = {
-                "listeners": {"*:7080": {"pass": "applications/empty"}},
-                "applications": {
-                    "empty": {
-                        "type": "external",
-                        "processes": {"spare": 0},
-                        "working_directory": option.test_dir + "/go/empty",
-                        "executable": option.temp_dir + "/go/app",
-                        "isolation": {"namespaces": {"credential": True}},
-                    },
-                },
-            }
-
-        elif 'python' in available['modules']:
-            conf = {
-                "listeners": {"*:7080": {"pass": "applications/empty"}},
-                "applications": {
-                    "empty": {
-                        "type": "python",
-                        "processes": {"spare": 0},
-                        "path": option.test_dir + "/python/empty",
-                        "working_directory": option.test_dir + "/python/empty",
-                        "module": "wsgi",
-                        "isolation": {"namespaces": {"credential": True}},
-                    }
-                },
-            }
-
-        elif 'php' in available['modules']:
-            conf = {
-                "listeners": {"*:7080": {"pass": "applications/phpinfo"}},
-                "applications": {
-                    "phpinfo": {
-                        "type": "php",
-                        "processes": {"spare": 0},
-                        "root": option.test_dir + "/php/phpinfo",
-                        "working_directory": option.test_dir + "/php/phpinfo",
-                        "index": "index.php",
-                        "isolation": {"namespaces": {"credential": True}},
-                    }
-                },
-            }
-
-        elif 'ruby' in available['modules']:
-            conf = {
-                "listeners": {"*:7080": {"pass": "applications/empty"}},
-                "applications": {
-                    "empty": {
-                        "type": "ruby",
-                        "processes": {"spare": 0},
-                        "working_directory": option.test_dir + "/ruby/empty",
-                        "script": option.test_dir + "/ruby/empty/config.ru",
-                        "isolation": {"namespaces": {"credential": True}},
-                    }
-                },
-            }
-
-        elif 'java' in available['modules']:
-            TestApplicationJava().prepare_env('empty')
-
-            conf = {
-                "listeners": {"*:7080": {"pass": "applications/empty"}},
-                "applications": {
-                    "empty": {
-                        "unit_jars": option.current_dir + "/build",
-                        "type": "java",
-                        "processes": {"spare": 0},
-                        "working_directory": option.test_dir + "/java/empty/",
-                        "webapp": option.temp_dir + "/java",
-                        "isolation": {"namespaces": {"credential": True}},
-                    }
-                },
-            }
-
-        elif 'node' in available['modules']:
-            TestApplicationNode().prepare_env('basic')
-
-            conf = {
-                "listeners": {"*:7080": {"pass": "applications/basic"}},
-                "applications": {
-                    "basic": {
-                        "type": "external",
-                        "processes": {"spare": 0},
-                        "working_directory": option.temp_dir + "/node",
-                        "executable": "app.js",
-                        "isolation": {"namespaces": {"credential": True}},
-                    }
-                },
-            }
-
-        elif 'perl' in available['modules']:
-            conf = {
-                "listeners": {"*:7080": {"pass": "applications/body_empty"}},
-                "applications": {
-                    "body_empty": {
-                        "type": "perl",
-                        "processes": {"spare": 0},
-                        "working_directory": option.test_dir
-                        + "/perl/body_empty",
-                        "script": option.test_dir + "/perl/body_empty/psgi.pl",
-                        "isolation": {"namespaces": {"credential": True}},
-                    }
-                },
-            }
-
-        else:
-            return
-
-        if 'success' not in self.conf(conf):
-            return
-
-        userns = self.getns('user')
-        if not userns:
-            return
-
-        available['features']['isolation'] = {'user': userns}
-
-        unp_clone_path = '/proc/sys/kernel/unprivileged_userns_clone'
-        if os.path.exists(unp_clone_path):
-            with open(unp_clone_path, 'r') as f:
-                if str(f.read()).rstrip() == '1':
-                    available['features']['isolation'][
-                        'unprivileged_userns_clone'
-                    ] = True
-
-        for ns in self.allns:
-            ns_value = self.getns(ns)
-            if ns_value:
-                available['features']['isolation'][ns] = ns_value
-
-    def getns(self, nstype):
-        # read namespace id from symlink file:
-        # it points to: '<nstype>:[<ns id>]'
-        # # eg.: 'pid:[4026531836]'
-        nspath = '/proc/self/ns/' + nstype
-        data = None
-
-        if os.path.exists(nspath):
-            data = int(os.readlink(nspath)[len(nstype) + 2 : -1])
-
-        return data
diff --git a/test/unit/main.py b/test/unit/main.py
index fce6a322..749ff3ab 100644
--- a/test/unit/main.py
+++ b/test/unit/main.py
@@ -4,39 +4,33 @@ from unit.option import option
 
 class TestUnit():
     @classmethod
-    def setup_class(cls, complete_check=True):
-        def check():
-            missed = []
+    def setup_class(cls):
+        missed = []
 
-            # check modules
+        # check modules
 
-            if 'modules' in cls.prerequisites:
-                available_modules = list(option.available['modules'].keys())
+        if 'modules' in cls.prerequisites:
+            available_modules = list(option.available['modules'].keys())
 
-                for module in cls.prerequisites['modules']:
-                    if module in available_modules:
-                        continue
+            for module in cls.prerequisites['modules']:
+                if module in available_modules:
+                    continue
 
-                    missed.append(module)
+                missed.append(module)
 
-            if missed:
-                pytest.skip('Unit has no ' + ', '.join(missed) + ' module(s)')
+        if missed:
+            pytest.skip('Unit has no ' + ', '.join(missed) + ' module(s)')
 
-            # check features
+        # check features
 
-            if 'features' in cls.prerequisites:
-                available_features = list(option.available['features'].keys())
+        if 'features' in cls.prerequisites:
+            available_features = list(option.available['features'].keys())
 
-                for feature in cls.prerequisites['features']:
-                    if feature in available_features:
-                        continue
+            for feature in cls.prerequisites['features']:
+                if feature in available_features:
+                    continue
 
-                    missed.append(feature)
+                missed.append(feature)
 
-            if missed:
-                pytest.skip(', '.join(missed) + ' feature(s) not supported')
-
-        if complete_check:
-            check()
-        else:
-            return check
+        if missed:
+            pytest.skip(', '.join(missed) + ' feature(s) not supported')
diff --git a/test/unit/utils.py b/test/unit/utils.py
index f24e9728..1307a4f6 100644
--- a/test/unit/utils.py
+++ b/test/unit/utils.py
@@ -48,3 +48,15 @@ def waitforsocket(port):
 
     pytest.fail('Can\'t connect to the 127.0.0.1:' + port)
 
+
+def getns(nstype):
+    # read namespace id from symlink file:
+    # it points to: '<nstype>:[<ns id>]'
+    # # eg.: 'pid:[4026531836]'
+    nspath = '/proc/self/ns/' + nstype
+    data = None
+
+    if os.path.exists(nspath):
+        data = int(os.readlink(nspath)[len(nstype) + 2 : -1])
+
+    return data