3 files changed, 129 insertions, 0 deletions
diff --git a/stdlib/source/test/aedifex/artifact/snapshot/build.lux b/stdlib/source/test/aedifex/artifact/snapshot/build.lux
new file mode 100644
index 000000000..e3fdcab62
--- /dev/null
+++ b/stdlib/source/test/aedifex/artifact/snapshot/build.lux
@@ -0,0 +1,39 @@
+(.module:
+  [lux #*
+   ["_" test (#+ Test)]
+   [abstract
+    [monad (#+ do)]
+    {[0 #spec]
+     [/
+      ["$." equivalence]]}]
+   [control
+    ["." try ("#\." functor)]
+    [parser
+     ["<.>" xml]]]
+   [math
+    ["." random (#+ Random)]]]
+  {#program
+   ["." /]})
+
+(def: #export random
+  (Random /.Build)
+  random.nat)
+
+(def: #export test
+  Test
+  (<| (_.covering /._)
+      (_.for [/.Build]
+             ($_ _.and
+                 (_.for [/.equivalence]
+                        ($equivalence.spec /.equivalence ..random))
+                 
+                 (do random.monad
+                   [expected ..random]
+                   (_.cover [/.format /.parser]
+                            (|> expected
+                                /.format
+                                list
+                                (<xml>.run /.parser)
+                                (try\map (\ /.equivalence = expected))
+                                (try.default false))))
+                 ))))
diff --git a/stdlib/source/test/aedifex/artifact/snapshot/stamp.lux b/stdlib/source/test/aedifex/artifact/snapshot/stamp.lux
new file mode 100644
index 000000000..aab722cad
--- /dev/null
+++ b/stdlib/source/test/aedifex/artifact/snapshot/stamp.lux
@@ -0,0 +1,48 @@
+(.module:
+  [lux #*
+   ["_" test (#+ Test)]
+   [abstract
+    [monad (#+ do)]
+    {[0 #spec]
+     [/
+      ["$." equivalence]]}]
+   [control
+    ["." try ("#\." functor)]
+    [parser
+     ["<.>" xml]]]
+   [math
+    ["." random (#+ Random)]]
+   [time
+    ["." instant]]]
+  {#program
+   ["." /]}
+  ["$." // #_
+   ["#." time]
+   ["#." build]])
+
+(def: #export random
+  (Random /.Stamp)
+  ($_ random.and
+      $//time.random
+      $//build.random
+      ))
+
+(def: #export test
+  Test
+  (<| (_.covering /._)
+      (_.for [/.Stamp])
+      ($_ _.and
+          (_.for [/.equivalence]
+                 ($equivalence.spec /.equivalence ..random))
+
+          (do random.monad
+            [expected ..random]
+            ($_ _.and
+                (_.cover [/.format /.parser]
+                         (|> expected
+                             /.format
+                             (<xml>.run' /.parser)
+                             (try\map (\ instant.equivalence = expected))
+                             (try.default false)))
+                ))
+          )))
diff --git a/stdlib/source/test/aedifex/artifact/snapshot/time.lux b/stdlib/source/test/aedifex/artifact/snapshot/time.lux
new file mode 100644
index 000000000..567c70ce4
--- /dev/null
+++ b/stdlib/source/test/aedifex/artifact/snapshot/time.lux
@@ -0,0 +1,42 @@
+(.module:
+  [lux #*
+   ["_" test (#+ Test)]
+   [abstract
+    [monad (#+ do)]
+    {[0 #spec]
+     [/
+      ["$." equivalence]]}]
+   [control
+    ["." try ("#\." functor)]
+    [parser
+     ["<.>" text]]]
+   [math
+    ["." random (#+ Random)]]
+   [time
+    ["." instant]]]
+  {#program
+   ["." /]})
+
+(def: #export random
+  (Random /.Time)
+  random.instant)
+
+(def: #export test
+  Test
+  (<| (_.covering /._)
+      (_.for [/.Time])
+      ($_ _.and
+          (_.for [/.equivalence]
+                 ($equivalence.spec /.equivalence ..random))
+
+          (do random.monad
+            [expected ..random]
+            ($_ _.and
+                (_.cover [/.format /.parser]
+                         (|> expected
+                             /.format
+                             (<text>.run /.parser)
+                             (try\map (\ instant.equivalence = expected))
+                             (try.default false)))
+                ))
+          )))