add test for legend columns

Author: nschloe

test/test_legend_columns.py

@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+#
+import helpers
+
+
+def plot():
+    import numpy as np
+    import matplotlib.pyplot as plt
+    fig, ax = plt.subplots(figsize=(17, 6))
+    ax.plot(np.array([1, 2, 3, 4, 5]), label='Test 1')
+    ax.plot(np.array([5, 4, 3, 2, 1]), label='Test 2')
+    ax.legend(ncol=2, loc='upper center')
+    return fig
+
+
+def test():
+    phash = helpers.Phash(plot())
+    assert phash.phash == 'a3267e19cad99998', phash.get_details()
+    return
+
+
+if __name__ == '__main__':
+    helpers.compare_with_latex(plot())