diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index f47acfa..bb4b90c 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -30,7 +30,7 @@ jobs:
         if [ -f dev-requirements.txt ]; then pip install -r dev-requirements.txt; fi
     - name: Lint with flake8, black, isort, pydocstyle
       run: |
-        flake8 bashplot/ --count --max-line-length=88 --ignore=W293,W291 --statistic
+        flake8 bashplot/ --count --statistic
         black . --check -v
         isort . --check -v
         flake8 . --count --exit-zero --max-complexity=10 --statistics
@@ -40,7 +40,7 @@ jobs:
         pip install .
     - name: Test with pytest and coverage
       run: |
-        coverage run -m pytest test/test*.py -vv
+        coverage run -m pytest -vv
         coverage report -m
         coverage xml
     - name: Codecov
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index ebd7fc6..22031a1 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -32,7 +32,7 @@ steps:
   displayName: 'Install dependencies'
 
 - script: |
-    flake8 bashplot/ --count --max-line-length=88 --ignore=W293,W291 --statistic
+    flake8 bashplot/ --count --statistic
     black . --check -v
     isort . --check -v
     flake8 . --count --exit-zero --max-complexity=10 --statistics
@@ -44,7 +44,7 @@ steps:
   displayName: 'Install bashplot'
 
 - script: |
-    coverage run -m pytest test/test*.py -vv
+    coverage run -m pytest -vv
     coverage report -m
     coverage xml
   displayName: 'pytest'
diff --git a/bashplot/bashplot.py b/bashplot/bashplot.py
index 388dcc5..b84b638 100644
--- a/bashplot/bashplot.py
+++ b/bashplot/bashplot.py
@@ -95,7 +95,7 @@ def plot_plot(fig, x, Y, label):
 def plot_scatter(fig, x, Y, label):
     """Make the scatter-figures.
 
-    plot_scatter() is generating a single- or multi-plot by recursiving calling
+    plot_scatter() is generating a single- or multi-plot by recursive calling
     scatter().
 
     Parameters
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000..20fc96a
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,17 @@
+[flake8]
+max-line-length = 88
+extend-ignore = E203, W503, W293, W291
+
+[tool.isort]
+multi_line_output = 3
+include_trailing_comma = true
+force_grid_wrap = 0
+use_parentheses = true
+ensure_newline_before_comments = true
+line_length = 88
+
+[pylint]
+max-line-length = 88
+
+[pylint.messages_control]
+disable = C0330, C0326
\ No newline at end of file
diff --git a/test/test_bashplot.py b/test/test_bashplot.py
index d73dcf9..bf4f582 100644
--- a/test/test_bashplot.py
+++ b/test/test_bashplot.py
@@ -3,6 +3,7 @@
 from pathlib import Path
 from unittest import mock
 
+import pytest
 import sample_generator
 
 from bashplot import bashplot
@@ -11,8 +12,8 @@
 
 print()
 
-test_txt = Path.cwd().glob("test*.txt")
-test_dat = Path.cwd().glob("test*.dat")
+test_txt = list(Path.cwd().glob("test*.txt"))
+test_dat = list(Path.cwd().glob("test*.dat"))
 
 args_1 = {
     "infile": test_txt,
@@ -103,24 +104,56 @@ def test_usecols():
 
 
 @mock.patch("bashplot.bashplot.bashplot")
-def test_default_run(bashplot):
+def test_default_run_mock(bashplot):
     bashplot.bashplot(fnames=test_txt, args=args_1)
     assert bashplot.bashplot.is_called
 
 
+def test_default_run():
+    bashplot.bashplot(fnames=test_txt, args=args_1)
+    assert True
+
+
 @mock.patch("bashplot.bashplot.bashplot")
-def test_customize_run_1(bashplot):
+def test_customize_run_mock_1(bashplot):
     bashplot.bashplot(fnames=test_txt, args=args_2)
     assert bashplot.bashplot.is_called
 
 
+def test_customize_run_1():
+    bashplot.bashplot(fnames=test_txt, args=args_2)
+    assert True
+
+
 @mock.patch("bashplot.bashplot.bashplot")
-def test_customize_run_2(bashplot):
+def test_customize_run_mock_2(bashplot):
     bashplot.bashplot(fnames=test_dat, args=args_3)
     assert bashplot.bashplot.is_called
 
 
+def test_customize_run_2():
+    bashplot.bashplot(fnames=test_dat, args=args_3)
+    assert True
+
+
 @mock.patch("bashplot.bashplot.command_line_runner")
-def test_command_line(command_line_runner):
+def test_command_line_mock(command_line_runner):
     bashplot.command_line_runner()
     assert bashplot.command_line_runner.is_called
+
+
+def test_command_line_1():
+    bashplot.command_line_runner()
+    assert True
+
+
+def test_log(capfd):
+    bashplot.log("msg")
+    out, _ = capfd.readouterr()
+    assert out == "msg\n"
+
+
+def test_log_error(capfd):
+    bashplot.log("msg", mode=True)
+    out, _ = capfd.readouterr()
+    assert out == "[ERROR] msg\n"