From aad7b14d09998d8581ab0f5ee3aec0f3d2e3816d Mon Sep 17 00:00:00 2001
From: Benjamin Moody <benjaminmoody@gmail.com>
Date: Wed, 29 Sep 2021 12:35:26 -0400
Subject: [PATCH] Add test cases for reading/writing huge skips.

Check that we can both read and write an annotation file containing a
relative offset of more than 2**31 - 1 ticks, which necessitates the
use of multiple SKIP pseudo-annotations.
---
 sample-data/huge.qrs     | Bin 0 -> 34 bytes
 tests/test_annotation.py |  16 ++++++++++++++++
 2 files changed, 16 insertions(+)
 create mode 100644 sample-data/huge.qrs

diff --git a/sample-data/huge.qrs b/sample-data/huge.qrs
new file mode 100644
index 0000000000000000000000000000000000000000..f48e8e03e317aeaf3b4ed21a7bb96f5d3c9ab2a3
GIT binary patch
literal 34
YcmZR0^S}Q8e+DchcL>W91{MYe0FvPo*Z=?k

literal 0
HcmV?d00001

diff --git a/tests/test_annotation.py b/tests/test_annotation.py
index 4fc33cc3..c7d0f4d3 100644
--- a/tests/test_annotation.py
+++ b/tests/test_annotation.py
@@ -187,12 +187,28 @@ def test_3(self):
         assert annotation.__eq__(pn_annotation)
         assert annotation.__eq__(write_annotation)
 
+    def test_4(self):
+        """
+        Read and write annotations with large time skips
+
+        Annotation file created by:
+            echo "xxxxxxxxx 10000000000 N 0 0 0" | wrann -r huge -a qrs
+        """
+        annotation = wfdb.rdann('sample-data/huge', 'qrs')
+        self.assertEqual(annotation.sample[0], 10000000000)
+        annotation.wrann()
+
+        annotation1 = wfdb.rdann('sample-data/huge', 'qrs')
+        annotation2 = wfdb.rdann('huge', 'qrs')
+        self.assertEqual(annotation1, annotation2)
+
     @classmethod
     def tearDownClass(cls):
         writefiles = [
             '100.atr',
             '1003.atr',
             '12726.anI',
+            'huge.qrs',
         ]
         for file in writefiles:
             if os.path.isfile(file):