From c172163b40a282d68d0483f91f834c002e6b39fa Mon Sep 17 00:00:00 2001
From: Callum Rollo <c.rollo@outlook.com>
Date: Thu, 31 Oct 2024 12:52:15 +0100
Subject: [PATCH] test of monotony (#51)

---
 glidertest/tools.py | 2 ++
 tests/test_tools.py | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/glidertest/tools.py b/glidertest/tools.py
index fcc8ab6..43ea62a 100644
--- a/glidertest/tools.py
+++ b/glidertest/tools.py
@@ -571,8 +571,10 @@ def check_monotony(da):
     """
     if not pd.Series(da).is_monotonic_increasing:
         print(f'{da.name} is not always monotonically increasing')
+        return False
     else:
         print(f'{da.name} is always monotonically increasing')
+        return True
 
 
 def plot_profIncrease(ds: xr.DataArray, ax: plt.Axes = None, **kw: dict, ) -> tuple({plt.Figure, plt.Axes}):
diff --git a/tests/test_tools.py b/tests/test_tools.py
index c3e463d..72255c6 100644
--- a/tests/test_tools.py
+++ b/tests/test_tools.py
@@ -43,3 +43,11 @@ def test_profile_check():
     ds = fetchers.load_sample_dataset()
     tools.check_monotony(ds.PROFILE_NUMBER)
     tools.plot_profIncrease(ds)
+
+def test_check_monotony():
+    ds = fetchers.load_sample_dataset()
+    profile_number_monotony = tools.check_monotony(ds.PROFILE_NUMBER)
+    temperature_monotony = tools.check_monotony(ds.TEMP)
+    assert profile_number_monotony
+    assert not temperature_monotony
+    
\ No newline at end of file