diff options
Diffstat (limited to 'tests/test_util_cache.lua')
| -rw-r--r-- | tests/test_util_cache.lua | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/tests/test_util_cache.lua b/tests/test_util_cache.lua index a174eea7..72cb5a85 100644 --- a/tests/test_util_cache.lua +++ b/tests/test_util_cache.lua @@ -170,5 +170,60 @@ function new(new) end assert_equal(i, 4); + local evicted_key, evicted_value; + local c = new(3, function (_key, _value) + evicted_key, evicted_value = _key, _value; + end); + local function set(k, v, should_evict_key, should_evict_value) + evicted_key, evicted_value = nil, nil; + c:set(k, v); + assert_equal(evicted_key, should_evict_key); + assert_equal(evicted_value, should_evict_value); + end + set("a", 1) + set("a", 1) + set("a", 1) + set("a", 1) + set("a", 1) + + set("b", 2) + set("c", 3) + set("b", 2) + set("d", 4, "a", 1) + set("e", 5, "c", 3) + + + local evicted_key, evicted_value; + local c3 = new(1, function (_key, _value, c3) + evicted_key, evicted_value = _key, _value; + if _key == "a" then + -- Put it back in... + -- Check that the newest key/value was set before on_evict was called + assert_equal(c3:get("b"), 2); + -- Sanity check for what we're evicting + assert_equal(_key, "a"); + assert_equal(_value, 1); + -- Re-insert the evicted key (causes this evict function to run again with "b",2) + c3:set(_key, _value) + assert_equal(c3:get(_key), _value) + end + end); + local function set(k, v, should_evict_key, should_evict_value) + evicted_key, evicted_value = nil, nil; + c3:set(k, v); + assert_equal(evicted_key, should_evict_key); + assert_equal(evicted_value, should_evict_value); + end + set("a", 1) + set("a", 1) + set("a", 1) + set("a", 1) + set("a", 1) + -- The evict handler re-inserts "a"->1, so "b" gets evicted: + set("b", 2, "b", 2) + -- Check the final state is what we expect + assert_equal(c3:get("a"), 1); + assert_equal(c3:get("b"), nil); + assert_equal(c3:count(), 1); end |