diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000000000000000000000000000000000000..643d9f1112930e8abbb76a8820f9593919970e0e
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,5 @@
+pytests:
+    stage: test
+    script: 
+        echo "Running tests"
+        pytest mapies/tests/*
diff --git a/run/run_tropomi.py b/run/run_tropomi.py
index 93f97fd2da1f734d8746055c219eb2dc6c64bf7e..034a9ff62a3d8c5692716d60b6edaffe663a84e5 100644
--- a/run/run_tropomi.py
+++ b/run/run_tropomi.py
@@ -13,13 +13,13 @@ if __name__ == "__main__":
     start_time = time.time()
 
 
-    c = TROPOMI(start_date, end_date, dest=outdir, indir=indir, grid_repr="global")
-    c.gather_nc_files()
-    c.process_avg_data(monthly_avg=False, batch_size = 14, apply_qa=True, geospatial_crop=[[-40, 60], [0, 70]], save=True)
+    mapies = TROPOMI(start_date, end_date, dest=outdir, indir=indir, grid_repr="global")
+    mapies.gather_nc_files()
+    mapies.process_avg_data(monthly_avg=False, batch_size = 14, apply_qa=True, geospatial_crop=[[-40, 60], [0, 70]], save=True)
 
-    c.plot_2D_observations(months=[0], outdir=outdir)
-    c.plot_2D_num_obs(months=[0], outdir=outdir)
-    #c.process_lazy_data(apply_qa=True, geospatial_crop=[[-40, 60], [0, 70]])
+    mapies.plot_2D_observations(months=[0], outdir=outdir)
+    mapies.plot_2D_num_obs(months=[0], outdir=outdir)
+    mapies.process_lazy_data(apply_qa=True, geospatial_crop=[[-40, 60], [0, 70]])
     end_time = time.time()
     elapsed_time = end_time - start_time
     print(f"Script executed in {elapsed_time:.2f} seconds.")