1 files changed, 44 insertions, 0 deletions
diff --git a/tests/srfi-19-alt-compare.scm b/tests/srfi-19-alt-compare.scm
new file mode 100644
index 00000000..fb88361b
--- /dev/null
+++ b/tests/srfi-19-alt-compare.scm
@@ -0,0 +1,44 @@
+(((srfi srfi-19 alt)
+  date
+  date< date<=
+  date> date>=
+  ))
+
+(test-assert "date< empty"
+  (date<))
+
+(test-assert "date< single"
+  (date< #2020-01-10))
+
+(test-assert "date< double"
+  (date< #2020-01-10 #2020-01-11))
+
+(test-assert "date< tripple"
+  (date< #2020-01-10 #2020-01-11 #2020-01-12))
+
+(test-assert "date< tripple negate"
+  (not (date< #2020-01-10 #2020-01-12 #2020-01-11)))
+
+(test-assert "date<= empty"
+  (date<=))
+
+(test-assert "date<= single"
+  (date<= #2020-01-10))
+
+(test-assert "date<= double"
+  (date<= #2020-01-10 #2020-01-11))
+
+(test-assert "date<="
+  (not (date<= #2020-01-01 #2018-05-15 #2020-01-31)))
+
+(test-assert "date<= equal"
+  (date<= #2018-05-15 #2018-05-15))
+
+(test-assert "date<"
+  (not (date< #2020-01-01 #2018-05-15 #2020-01-31)))
+
+(test-assert "date>"
+  (not (date> #2020-01-31 #2018-05-15 #2020-01-01 )))
+
+(test-assert "date>="
+  (not (date>=  #2020-01-31  #2018-05-15 #2020-01-01)))