1 files changed, 42 insertions, 0 deletions
diff --git a/test/01-native.janet b/test/01-native.janet
new file mode 100644
index 0000000..00f8c9b
--- /dev/null
+++ b/test/01-native.janet
@@ -0,0 +1,42 @@
+(import date/native)
+
+# capture current time in all formats
+(def time  (native/time))
+(def gmt   (:gmtime time))
+(def local (:localtime time))
+
+# no crashes yet? good
+(def gd (:todict gmt))
+(def ld (:todict local))
+
+# comparisons
+# compare with +/- 1 (catch mutability, off-by-one) and +/- 120 (ensure mktime works)
+(loop [n :in [1 120]
+       :let [dec |(- $ n)
+             inc |(+ $ n)
+             mrg |(merge $ {:sec ($1 ($ :sec))})]]
+  (assert (= time (:mktime local)))
+  (assert (> time (native/dict->time (mrg ld dec))))
+  (assert (< time (native/dict->time (mrg ld inc))))
+  (assert (= gmt (native/dict->tm gd)))
+  (assert (> gmt (native/dict->tm (mrg gd dec))))
+  (assert (< gmt (native/dict->tm (mrg gd inc)))))
+
+# try all of the built-in formats
+(def non-empty? (comp not zero? length))
+(loop [obj :in [gmt local]
+       fmt :in [:iso8601 :locale :email :rfc5322 "%c"]]
+  (assert (non-empty? (:strftime obj fmt))
+          (string/format "format produced empty string: %v" fmt)))
+# try string and describe
+(loop [obj :in [['time time] ['gmt gmt] ['local local]]
+       fun :in [string describe]
+       :let [[sym tim] obj]]
+  (assert (non-empty? (fun tim))
+          (string/format "calling function %v on %v failed" fun sym)))
+
+(var ran? false)
+(eachp [k v] gmt
+  (set ran? true)
+  (assert (keyword? k)))
+(assert ran? "failed to iterate over tm")