Skip screenshot test it qt can not detect fonts

Author: HakonSohoel

tests/ert/ui_tests/gui/test_docs_screenshots.py

@@ -2,6 +2,7 @@
 import shutil
 from textwrap import dedent
 
+import pytest
 from PyQt6.QtCore import Qt, QTimer
 from PyQt6.QtWidgets import QComboBox, QToolButton, QWidget
 from skimage import io
@@ -64,6 +65,13 @@
     "docs/ert/getting_started/howto/ert_screenshot_adaptive_loc.png",
 ]
 
+SKIP_MESSAGE = """Skipping this test because no fonts could be found by qt.
+
+This is a problem on the github runners using ubuntu-latest.
+It has been verified that fonts are present in the system by calling fc-list,
+but qt are not able to detect these fonts for some reason.
+"""
+
 
 def run_experiment(qtbot, experiment_mode, gui, click_done=True):
     # Select correct experiment in the simulation panel
@@ -211,7 +219,8 @@ def test_that_poly_new_minimal_screenshots_are_up_to_date(
 
     gui = open_gui_with_docs_example(tmp_path, example_folder, "poly.ert")
 
-    assert gui.available_fonts, "No fonts could be found by qt"
+    if not gui.available_fonts:
+        pytest.skip(SKIP_MESSAGE)
 
     compare_img_with_gui(gui_changed, example_folder, "ert.png", gui, qtbot)
 
@@ -239,7 +248,8 @@ def test_that_poly_new_with_simple_script_screenshots_are_up_to_date(
 
     gui = open_gui_with_docs_example(tmp_path, example_folder, "poly.ert")
 
-    assert gui.available_fonts, "No fonts could be found by qt"
+    if not gui.available_fonts:
+        pytest.skip(SKIP_MESSAGE)
 
     clean_up_diplayed_runpath(gui)
 
@@ -263,7 +273,8 @@ def test_that_poly_new_with_results_screenshots_are_up_to_date(
 
     gui = open_gui_with_docs_example(tmp_path, example_folder, "poly.ert", 11223344)
 
-    assert gui.available_fonts, "No fonts could be found by qt"
+    if not gui.available_fonts:
+        pytest.skip(SKIP_MESSAGE)
 
     run_experiment(qtbot, EnsembleExperiment, gui)
     open_storage(gui.ert_config.ens_path, mode="w")
@@ -301,7 +312,8 @@ def test_that_poly_new_with_observations_screenshots_are_up_to_date(
         tmp_path, example_folder, "poly_final.ert", 11223344
     )
 
-    assert gui.available_fonts, "No fonts could be found by qt"
+    if not gui.available_fonts:
+        pytest.skip(SKIP_MESSAGE)
 
     run_experiment(qtbot, EnsembleSmoother, gui)
     open_storage(gui.ert_config.ens_path, mode="w")
@@ -358,7 +370,8 @@ def test_that_poly_new_with_more_observations_screenshots_are_up_to_date(
         tmp_path, example_folder, "poly_final.ert", 11223344
     )
 
-    assert gui.available_fonts, "No fonts could be found by qt"
+    if not gui.available_fonts:
+        pytest.skip(SKIP_MESSAGE)
 
     run_experiment(qtbot, EnsembleSmoother, gui)
     open_storage(gui.ert_config.ens_path, mode="w")