EKF pytest save plots to pdf

.gitignore

@@ -1,5 +1,6 @@
 *.DS_Store
 *~
 .cache/
+.pytest_cache/
 build/
 EKF/tests/pytest/__pycache__/

EKF/tests/pytest/CMakeLists.txt

@@ -36,27 +36,31 @@ if(EKF_PYTHON_TESTS)
 	# pip3 install -r requirements.txt 
 
 	add_custom_target(ecl_EKF_pytest
-		COMMAND ${CMAKE_COMMAND} -E env PYTHONPATH=${CMAKE_BINARY_DIR}/EKF/swig/python ${CMAKE_CURRENT_SOURCE_DIR}/ekf_test.py --verbose
+		COMMAND ${CMAKE_COMMAND} -E env PYTHONPATH=${CMAKE_BINARY_DIR}/EKF/swig/python ${CMAKE_CURRENT_SOURCE_DIR}/ekf_test.py --verbose --plots
 		DEPENDS ecl_EKF _ecl_EKF
+		WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
 		USES_TERMINAL
 	)
 
 	add_custom_target(ecl_EKF_pytest-quick
-		COMMAND ${CMAKE_COMMAND} -E env PYTHONPATH=${CMAKE_BINARY_DIR}/EKF/swig/python ${CMAKE_CURRENT_SOURCE_DIR}/ekf_test.py --quick --verbose
+		COMMAND ${CMAKE_COMMAND} -E env PYTHONPATH=${CMAKE_BINARY_DIR}/EKF/swig/python ${CMAKE_CURRENT_SOURCE_DIR}/ekf_test.py --quick --verbose --plots
 		DEPENDS ecl_EKF _ecl_EKF
+		WORKING_DIRECTORY ${CMAKE_BINARY_DIR}		
 		USES_TERMINAL
 	)
 
 	add_custom_target(ecl_EKF_pytest-benchmark
 		COMMAND ${CMAKE_COMMAND} -E env PYTHONPATH=${CMAKE_BINARY_DIR}/EKF/swig/python ${CMAKE_CURRENT_SOURCE_DIR}/ekf_test.py --benchmark
 		DEPENDS ecl_EKF _ecl_EKF
+		WORKING_DIRECTORY ${CMAKE_BINARY_DIR}		
 		USES_TERMINAL
 	)
 
 	# requires python3-tk
 	add_custom_target(ecl_EKF_pytest-plots
 		COMMAND ${CMAKE_COMMAND} -E env PYTHONPATH=${CMAKE_BINARY_DIR}/EKF/swig/python ${CMAKE_CURRENT_SOURCE_DIR}/ekf_test.py --plots
 		DEPENDS ecl_EKF _ecl_EKF
+		WORKING_DIRECTORY ${CMAKE_BINARY_DIR}		
 		USES_TERMINAL
 	)
 

EKF/tests/pytest/plot_utils.py

@@ -44,18 +44,26 @@
 from contextlib import contextmanager
 
 try:
-    from matplotlib import pyplot as plt
-    import seaborn as sns
+    # matplotlib don't use Xwindows backend (must be before pyplot import)
+    import matplotlib
+    matplotlib.use('Agg')
+
+    import matplotlib.pyplot as plt
+    from matplotlib.backends.backend_pdf import PdfPages
+
+    #from matplotlib import pyplot as plt
+    #from matplotlib.backends.backend_pdf import PdfPages
+    #import seaborn as sns
 except ImportError as err:
     print("Cannot import plotting libraries, "
-          "please install matplotlib and seaborn.")
+          "please install matplotlib.")
     raise err
 
 # Nice plot defaults
-sns.set_style('darkgrid')
-sns.set_palette('colorblind',
-                desat=0.6)
+#sns.set_style('darkgrid')
+#sns.set_palette('colorblind', desat=0.6)
 
+pp = PdfPages("ecl_EKF_test.pdf")
 
 def quit_figure_on_key(key, fig=None):
     """Add handler to figure (defaults to current figure) that closes it
@@ -82,10 +90,11 @@ def figure(name=None, params=None, figsize=None, subplots=None):
         # Get name of function calling the context from the stack
         name = inspect.stack()[2][3]
     fig, axes = plt.subplots(*subplots, figsize=figsize)
-    fig.canvas.set_window_title(name)
-    quit_figure_on_key('q', fig)
+    #fig.canvas.set_window_title(name)
+    #quit_figure_on_key('q', fig)
     yield fig, axes
     if params is not None:
         name += "\n" + repr(params)
     axes[0].set_title(name)
-    plt.show(True)
+    #plt.show(True)
+    pp.savefig()

EKF/tests/pytest/requirements.txt

@@ -2,5 +2,4 @@ pytest>=3.2.1
 hypothesis>=3.17.0
 numpy>=1.12.1
 matplotlib>=2.0.0
-seaborn>=0.7.1
 pytest-benchmark>=3.1.1

Jenkinsfile

@@ -84,6 +84,7 @@ pipeline {
             sh 'make distclean'
             sh 'make test_EKF'
             sh 'ccache -s'
+            archiveArtifacts(artifacts: 'build/**/*.pdf')
             sh 'make distclean'
           }
         }

Makefile

@@ -99,6 +99,9 @@ test: test_build
 
 test_EKF: test_build
 	@cmake --build $(SRC_DIR)/build/test_build --target ecl_EKF_pytest-quick
+
+test_EKF_plots: test_build
+	@cmake --build $(SRC_DIR)/build/test_build --target ecl_EKF_pytest-plots
 
 # Cleanup
 # --------------------------------------------------------------------