util.cache: Add some missing test cases
Found via mutation testing.
--- a/spec/util_cache_spec.lua Tue Oct 11 15:41:05 2022 +0100
+++ b/spec/util_cache_spec.lua Thu Oct 13 09:55:36 2022 +0100
@@ -4,6 +4,20 @@
describe("util.cache", function()
describe("#new()", function()
it("should work", function()
+ do
+ local c = cache.new(1);
+ assert.is_not_nil(c);
+
+ assert.has_error(function ()
+ cache.new(0);
+ end);
+ assert.has_error(function ()
+ cache.new(-1);
+ end);
+ assert.has_error(function ()
+ cache.new("foo");
+ end);
+ end
local c = cache.new(5);
@@ -336,5 +350,43 @@
assert.spy(i).was_called_with("c", "3");
assert.spy(i).was_called_with("d", "4");
end);
+
+ local function vs(t)
+ local vs_ = {};
+ for v in t:values() do
+ vs_[#vs_+1] = v;
+ end
+ return vs_;
+ end
+
+ it(":values works", function ()
+ local t = cache.new(3);
+ t:set("k1", "v1");
+ t:set("k2", "v2");
+ assert.same({"v2", "v1"}, vs(t));
+ t:set("k3", "v3");
+ assert.same({"v3", "v2", "v1"}, vs(t));
+ t:set("k4", "v4");
+ assert.same({"v4", "v3", "v2"}, vs(t));
+ end);
+
+ it(":resize works", function ()
+ local c = cache.new(5);
+ for i = 1, 5 do
+ c:set(("k%d"):format(i), ("v%d"):format(i));
+ end
+ assert.same({"v5", "v4", "v3", "v2", "v1"}, vs(c));
+ assert.has_error(function ()
+ c:resize(-1);
+ end);
+ assert.has_error(function ()
+ c:resize(0);
+ end);
+ assert.has_error(function ()
+ c:resize("foo");
+ end);
+ c:resize(3);
+ assert.same({"v5", "v4", "v3"}, vs(c));
+ end);
end);
end);