spec/tzcache: Add tests for tzcache

diff --git a/spec/tzcache_spec.lua b/spec/tzcache_spec.lua
new file mode 100644 (file)
index 0000000..ea0c211
--- /dev/null
+++ b/spec/tzcache_spec.lua
@@ -0,0 +1,17 @@
+describe("Opening/reading system files", function()
+       local tzcache = require "luatz.tzcache"
+       it("should have a localtime", function()
+               tzcache.get_tz()
+       end)
+       it("should be able to open UTC", function()
+               tzcache.get_tz("UTC")
+       end)
+       it("should re-use results from cache", function()
+               -- If cached it should return the same table
+               local localtime = tzcache.get_tz()
+               assert.are.equal(localtime, tzcache.get_tz())
+               -- Once cache is cleared it should return a new table
+               tzcache.clear_tz_cache()
+               assert._not.equal(localtime, tzcache.get_tz())
+       end)
+end)