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-rw-r--r--spec/util_bitcompat_spec.lua27
1 files changed, 27 insertions, 0 deletions
diff --git a/spec/util_bitcompat_spec.lua b/spec/util_bitcompat_spec.lua
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+++ b/spec/util_bitcompat_spec.lua
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+describe("util.bitcompat", function ()
+ -- bitcompat will pass through to an appropriate implementation. Our
+ -- goal here is to check that whatever implementation is in use passes
+ -- these basic sanity checks.
+
+ local bit = require "util.bitcompat";
+
+ it("bor works", function ()
+ assert.equal(0xF0FF, bit.bor(0xF000, 0x00F0, 0x000F));
+ end);
+
+ it("band works", function ()
+ assert.equal(0x0F, bit.band(0xFF, 0x1F, 0x0F));
+ end);
+
+ it("bxor works", function ()
+ assert.equal(0x13, bit.bxor(0x10, 0x0F, 0x0C));
+ end);
+
+ it("rshift works", function ()
+ assert.equal(0x0F, bit.rshift(0xFF, 4));
+ end);
+
+ it("lshift works", function ()
+ assert.equal(0xFF00, bit.lshift(0xFF, 8));
+ end);
+end);