tests: new fsck tests for interval overlap

nilmdb/fsck/fsck.py

@@ -274,7 +274,7 @@ class Fsck(object):
         #           B -------- D
         # Then we can try changing the first interval to go from
         # A to B instead.
-        msg = (f"{path}: overlap in file offests:\n"
+        msg = (f"{path}: overlap in file offsets:\n"
                f"existing ranges: {existing}\n"
                f"overlapping interval: {new}")
         if not self.fix:

tests/test_fsck.py

@@ -123,7 +123,7 @@ class TestFsck(object):
         self.failmsg("test2h", "missing bulkdata dir")
         self.failmsg("test2i", "bad bulkdata table")
         self.failmsg("test2j", "overlap in intervals")
-        self.failmsg("test2k", "overlap in file offsets")
+        self.failmsg("test2k", "overlap in file offsets", fix=False)
         self.ok("test2k1")
         self.failmsg("test2l", "unsupported bulkdata version")
         self.failmsg("test2m", "bad rows_per_file")
@@ -176,3 +176,9 @@ class TestFsck(object):
         self.failmsg("test2w2", "non-monotonic, and zero", fix=False)
         self.okmsg("test2w2", "Will try truncating table")
         self.contain("new end: time 237000001, pos 238")
+
+        self.failmsg("test2x1", "overlap in file offsets", fix=False)
+        self.okmsg("test2x1", "truncating")
+
+        self.failmsg("test2x2", "unfixable overlap")
+        self.failmsg("test2x3", "unfixable overlap")