Add tests in view for the new plot options (#43)

* calculate cos^2 - sin^2 in model

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* add test

* math optimization

* comments in test

* add unit tests

* get rid ()

* pre-commit fix

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Andrei Savici <[email protected]>

src/hyspecppt/hppt/experiment_settings.py

@@ -12,7 +12,7 @@
     alpha + subscript_s,
     "cos" + square + alpha + subscript_s,
     "(1+cos" + square + alpha + subscript_s + ")/2",
-    "(cos" + square + alpha + subscript_s + "-sin" + square + alpha + subscript_s + ")",
+    "cos" + square + alpha + subscript_s + "-sin" + square + alpha + subscript_s,
 ]
 
 # default parameters

tests/hppt_view/test_basegui.py

@@ -86,3 +86,26 @@ def test_selector_widget(qtbot):
 
     assert selector_widget.powder_rb.text() == "Po&wder"
     assert selector_widget.sc_rb.text() == "Single C&rystal"
+
+
+def test_combo_box_plot_options():
+    """Test the combo box text are set correctly"""
+    # unicode
+    alpha = "\u03b1"
+    square = "\u00b2"
+    subscript_s = "\u209b"
+
+    ExpWidget = hppt_view.ExperimentWidget()
+    ExpWidget.initializeCombo(PLOT_TYPES)
+    assert ExpWidget.Type_combobox.currentText() == alpha + subscript_s
+    ExpWidget.Type_combobox.setCurrentIndex(1)
+    assert ExpWidget.Type_combobox.currentText() == "cos" + square + alpha + subscript_s
+
+    ExpWidget.Type_combobox.setCurrentIndex(2)
+    assert ExpWidget.Type_combobox.currentText() == "(1+cos" + square + alpha + subscript_s + ")/2"
+
+    ExpWidget.Type_combobox.setCurrentIndex(3)
+    assert (
+        ExpWidget.Type_combobox.currentText()
+        == "cos" + square + alpha + subscript_s + "-sin" + square + alpha + subscript_s
+    )