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How to use visit_Assign method in avocado

Best Python code snippet using avocado_python

db_query_string_format_plugin_tests.py

Source:db_query_string_format_plugin_tests.py

1import astroid2import pylint.testutils3from baseplate.lint import db_query_string_format_plugin4class TestNoCQLStringFormatChecker(pylint.testutils.CheckerTestCase):5    CHECKER_CLASS = db_query_string_format_plugin.NoDbQueryStringFormatChecker6    def test_finds_variable_binop_string_format_query(self):7        assign_node_a, call_node_b = astroid.extract_node(8            """9        query = "select * from %s" % "users" #@10        cassandra_session.execute(query) #@11        """12        )13        self.checker.visit_assign(assign_node_a)14        self.checker.visit_call(call_node_b)15        self.assertAddsMessages(16            pylint.testutils.Message(msg_id="database-query-string-format", node=call_node_b)17        )18    def test_finds_variable_call_string_format_query(self):19        assign_node_a, call_node_b = astroid.extract_node(20            """21        query = "select * from %s".format("users") #@22        cassandra_session.execute(query) #@23        """24        )25        self.checker.visit_assign(assign_node_a)26        self.checker.visit_call(call_node_b)27        self.assertAddsMessages(28            pylint.testutils.Message(msg_id="database-query-string-format", node=call_node_b)29        )30    def test_finds_binop_string_format_query(self):31        call_node_a = astroid.extract_node(32            """33        cassandra_session.execute("select * from %s" % "users") #@34        """35        )36        self.checker.visit_call(call_node_a)37        self.assertAddsMessages(38            pylint.testutils.Message(msg_id="database-query-string-format", node=call_node_a)39        )40    def test_finds_call_string_format_query(self):41        call_node_a = astroid.extract_node(42            """43        cassandra_session.execute("select * from %s".format("users")) #@44        """45        )46        self.checker.visit_call(call_node_a)47        self.assertAddsMessages(48            pylint.testutils.Message(msg_id="database-query-string-format", node=call_node_a)49        )50    def test_ignores_variable_non_string_format_query(self):51        assign_node_a, call_node_b = astroid.extract_node(52            """53        query = "select * from users" #@54        cassandra_session.execute(query) #@55        """56        )57        with self.assertNoMessages():58            self.checker.visit_assign(assign_node_a)59            self.checker.visit_call(call_node_b)60    def test_ignores_non_string_format_query(self):61        call_node_a = astroid.extract_node(62            """63        cassandra_session.execute("select * from users") #@64        """65        )66        with self.assertNoMessages():67            self.checker.visit_call(call_node_a)68    def test_ignores_no_argument(self):69        call_node_a = astroid.extract_node(70            """71        kb.execute() #@72        """73        )74        with self.assertNoMessages():75            self.checker.visit_call(call_node_a)76    def test_variable_reset(self):77        assign_node_a, assign_node_b, call_node_c = astroid.extract_node(78            """79        query = "select * from %s" % "users" #@80        query = "select * from users" #@81        cassandra_session.execute(query) #@82        """83        )84        with self.assertNoMessages():85            self.checker.visit_assign(assign_node_a)86            self.checker.visit_assign(assign_node_b)87            self.checker.visit_call(call_node_c)88    def test_func_variable_reset(self):89        func_node, assign_node_a, assign_node_b, call_node_c = astroid.extract_node(90            """91        def test(cassandra_session): #@92            query = "select * from %s" % "users" #@93            cassandra_session.execute(query)94        def other_test(cassandra_session):95            query = "select * from users" #@96            cassandra_session.execute(query) #@97        """98        )99        with self.assertNoMessages():100            self.checker.visit_assign(assign_node_a)101            self.checker.leave_functiondef(func_node)102            self.checker.visit_assign(assign_node_b)103            self.checker.visit_call(call_node_c)104    def test_class_variable_reset(self):105        class_node, assign_node_a, assign_node_b, call_node_c = astroid.extract_node(106            """107        class Test(): #@108            query = "select * from %s" % "users" #@109            cassandra_session.execute(query)110        query = "select * from users" #@111        cassandra_session.execute(query) #@112        """113        )114        with self.assertNoMessages():115            self.checker.visit_assign(assign_node_a)116            self.checker.leave_classdef(class_node)117            self.checker.visit_assign(assign_node_b)118            self.checker.visit_call(call_node_c)119    def test_module_variable_reset(self):120        mod_node, assign_node_a, assign_node_b, call_node_c = astroid.extract_node(121            """122        import test #@123        query = "select * from %s" % "users" #@124        cassandra_session.execute(query)125        import other_test126        query = "select * from users" #@127        cassandra_session.execute(query) #@128        """129        )130        with self.assertNoMessages():131            self.checker.visit_assign(assign_node_a)132            self.checker.leave_module(mod_node)133            self.checker.visit_assign(assign_node_b)...

example_plugin_tests.py

Source:example_plugin_tests.py

1# Libraries needed for tests2import astroid3import pylint.testutils4from baseplate.lint import example_plugin5# CheckerTestCase creates a linter that will traverse the AST tree6class TestNoReassignmentChecker(pylint.testutils.CheckerTestCase):7    CHECKER_CLASS = example_plugin.NoReassignmentChecker8    # Use astroid.extract_node() to create a test case9    # Where you put #@ is where the variable gets assigned10    # example, assign_node_a = test = 1, assign_node_b = test = 211    def test_finds_reassigned_variable(self):12        assign_node_a, assign_node_b = astroid.extract_node(13            """14        test = 1 #@15        test = 2 #@16            """17        )18        self.checker.visit_assign(assign_node_a)19        self.checker.visit_assign(assign_node_b)20        self.assertAddsMessages(21            pylint.testutils.Message(msg_id="reassigned-variable", node=assign_node_a)22        )23    def test_ignores_no_reassigned_variable(self):24        assign_node_a, assign_node_b = astroid.extract_node(25            """26        test1 = 1 #@27        test2 = 2 #@28            """29        )30        with self.assertNoMessages():31            self.checker.visit_assign(assign_node_a)32            self.checker.visit_assign(assign_node_b)33    def test_ignores_variable_outside_function(self):34        func_node, assign_node_a, assign_node_b = astroid.extract_node(35            """36        def test1(): #@37            test = 1 #@38        def test2():39            test = 2 #@40            """41        )42        with self.assertNoMessages():43            self.checker.visit_assign(assign_node_a)44            self.checker.leave_functiondef(func_node)...

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