jack
109 lines
3.1 KiB
Python
109 lines
3.1 KiB
Python
"""Tests for src/pygui/backend/visualization/graph_view.py."""
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import json
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from unittest.mock import MagicMock, PropertyMock, patch
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import pytest
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def _make_plot_widget():
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"""Create a mock PlotWidget with the interface GraphView expects."""
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widget = MagicMock()
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widget.removeItem = MagicMock()
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widget.plot = MagicMock(return_value=MagicMock())
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widget.setYRange = MagicMock()
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widget.clear = MagicMock()
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return widget
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class TestUpdateTrend:
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def test_parses_valid_json(self):
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from pygui.backend.visualization.graph_view import GraphView
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gv = GraphView()
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gv._plot_widget = _make_plot_widget()
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gv.updateTrend(json.dumps([20.0, 25.0, 30.0]))
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assert gv._plot_widget.plot.called
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gv._plot_widget.setYRange.assert_called_once()
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def test_rejects_invalid_json(self):
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from pygui.backend.visualization.graph_view import GraphView
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gv = GraphView()
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gv._plot_widget = _make_plot_widget()
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gv.updateTrend("not json")
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assert not gv._plot_widget.plot.called
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def test_rejects_none(self):
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from pygui.backend.visualization.graph_view import GraphView
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gv = GraphView()
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gv._plot_widget = _make_plot_widget()
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gv.updateTrend(None)
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assert not gv._plot_widget.plot.called
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def test_empty_list(self):
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from pygui.backend.visualization.graph_view import GraphView
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gv = GraphView()
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gv._plot_widget = _make_plot_widget()
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gv.updateTrend("[]")
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# Empty list means nothing to plot, but clear IS called
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assert gv._plot_widget.plot.called is False
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def test_no_plot_widget(self):
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from pygui.backend.visualization.graph_view import GraphView
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gv = GraphView()
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assert gv._plot_widget is None
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# Should not crash
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gv.updateTrend("[1, 2, 3]")
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class TestUpdateComparison:
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def test_parses_valid_json(self):
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from pygui.backend.visualization.graph_view import GraphView
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gv = GraphView()
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gv._plot_widget = _make_plot_widget()
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a = [10.0, 20.0, 30.0]
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b = [12.0, 22.0, 32.0]
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path = [[0, 0], [1, 1], [2, 2]]
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gv.updateComparison(json.dumps(a), json.dumps(b), json.dumps(path))
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assert gv._plot_widget.clear.called
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assert gv._plot_widget.plot.call_count == 2
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def test_rejects_invalid_json(self):
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"""clear() is called before parsing, so it always fires on valid widget."""
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from pygui.backend.visualization.graph_view import GraphView
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gv = GraphView()
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gv._plot_widget = _make_plot_widget()
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gv.updateComparison("bad", json.dumps([1]), json.dumps([]))
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# clear() is called before parsing — it always fires
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assert gv._plot_widget.clear.called
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# But plot() should NOT be called since parsing fails
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assert not gv._plot_widget.plot.called
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def test_no_plot_widget(self):
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from pygui.backend.visualization.graph_view import GraphView
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gv = GraphView()
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assert gv._plot_widget is None
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# Should not crash
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gv.updateComparison("[1,2]", "[3,4]", "[[0,0]]")
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