tests: SessionDB fully tested

test/mitmproxy/addons/test_session.py

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+import sqlite3
+import os
+import pytest
+
+from mitmproxy.exceptions import SessionLoadException
+from mitmproxy.addons import session
+from mitmproxy.utils.data import pkg_data
+
+
+class TestSession:
+    def test_session_temporary(self, tdata):
+        open('tmp.sqlite', 'w')
+        s = session.SessionDB()
+        assert session.SessionDB.is_session_db('tmp.sqlite')
+        s.con.close()
+        os.remove('tmp.sqlite')
+
+    def test_session_not_valid(self, tdata):
+        path = tdata.path('mitmproxy/data/') + 'test.sqlite'
+        if os.path.isfile(path):
+            os.remove(path)
+        with open(path, 'w') as handle:
+            handle.write("Not valid data")
+        with pytest.raises(SessionLoadException):
+            s = session.SessionDB(path)
+
+    def test_session_new_persistent(self, tdata):
+        path = tdata.path('mitmproxy/data/') + 'test.sqlite'
+        if os.path.isfile(path):
+            os.remove(path)
+        s = session.SessionDB(path)
+        assert session.SessionDB.is_session_db(path)
+
+    def test_session_load_existing(self, tdata):
+        path = tdata.path('mitmproxy/data/') + 'test.sqlite'
+        if os.path.isfile(path):
+            os.remove(path)
+        con = sqlite3.connect(path)
+        script_path = pkg_data.path("io/sql/session_create.sql")
+        qry = open(script_path, 'r').read()
+        with con:
+            con.executescript(qry)
+            blob = b'blob_of_data'
+            con.execute(f'INSERT INTO FLOW VALUES(1, 1, 1, "{blob}");')
+        con.close()
+        s = session.SessionDB(path)
+        con = sqlite3.connect(path)
+        with con:
+            cur = con.cursor()
+            cur.execute('SELECT * FROM FLOW;')
+            rows = cur.fetchall()
+            assert len(rows) == 1