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# -*- coding: utf-8 -*- |
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# |
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# Copyright © 2017 Spyder Project Contributors |
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# Licensed under the terms of the MIT License |
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# (see LICENSE.txt for details) |
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"""Tests for memoryprofiler.py.""" |
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# Standard library imports |
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import os |
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# Third party imports |
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from pytestqt import qtbot |
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from qtpy.QtCore import Qt |
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from spyder.utils.qthelpers import qapplication |
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MAIN_APP = qapplication() |
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# Local imports |
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from spyder_memory_profiler.widgets.memoryprofiler import MemoryProfilerWidget |
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try: |
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from unittest.mock import Mock |
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except ImportError: |
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from mock import Mock # Python 2 |
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TEST_SCRIPT = \ |
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"""@profile |
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def foo(): |
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a = [1] * (10 ** 6) |
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b = [2] * (2 * 10 ** 7) |
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del b |
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return a |
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foo()""" |
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def test_profile_and_display_results(qtbot, tmpdir, monkeypatch): |
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"""Run profiler on simple script and check that results are okay.""" |
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os.chdir(tmpdir.strpath) |
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testfilename = tmpdir.join('test_foo.py').strpath |
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with open(testfilename, 'w') as f: |
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f.write(TEST_SCRIPT) |
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MockQMessageBox = Mock() |
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monkeypatch.setattr('spyder_memory_profiler.widgets.memoryprofiler.QMessageBox', |
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MockQMessageBox) |
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widget = MemoryProfilerWidget(None) |
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qtbot.addWidget(widget) |
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with qtbot.waitSignal(widget.sig_finished, timeout=10000, raising=True): |
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widget.analyze(testfilename) |
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MockQMessageBox.assert_not_called() |
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dt = widget.datatree |
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assert dt.topLevelItemCount() == 1 # number of functions profiled |
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top = dt.topLevelItem(0) |
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assert top.data(0, Qt.DisplayRole).startswith('foo ') |
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assert top.childCount() == 6 |
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for i in range(6): |
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assert top.child(i).data(0, Qt.DisplayRole) == i + 1 # line no |
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# column 2 has increment (in Mib); displayed as 'xxx MiB' so need to strip |
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# last 4 characters |
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assert float(top.child(2).data(2, Qt.DisplayRole)[:-4]) >= 7 # increment (MiB) |
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assert float(top.child(2).data(2, Qt.DisplayRole)[:-4]) <= 8 |
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assert float(top.child(3).data(2, Qt.DisplayRole)[:-4]) >= 150 |
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assert float(top.child(3).data(2, Qt.DisplayRole)[:-4]) <= 160 |
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assert float(top.child(4).data(2, Qt.DisplayRole)[:-4]) >= -160 |
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assert float(top.child(4).data(2, Qt.DisplayRole)[:-4]) <= -150 |
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assert float(top.child(5).data(2, Qt.DisplayRole)[:-4]) == 0 |
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spyder-ide /
spyder-memory-profiler
