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spec/util_indexedbheap_spec.lua @ 12748:7b9de8109a90
util.roles: Add a :policies() method to iterate through available policies
We don't expose the policies directly, to force people to go through :may().
However, there are times when we really just need to know what policies a
role has inside it (e.g. for reporting or debugging purposes).
author | Matthew Wild <mwild1@gmail.com> |
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date | Fri, 07 Oct 2022 17:01:35 +0100 |
parent | 11116:d334f2bebe55 |
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local ibh = require"util.indexedbheap"; local function verify_heap_property(priorities) for k in ipairs(priorities) do local parent = priorities[k]; local childA = priorities[2*k]; local childB = priorities[2*k+1]; -- print("-", parent, childA, childB) assert(childA == nil or childA > parent, "heap property violated"); assert(childB == nil or childB > parent, "heap property violated"); end end local h setup(function () h = ibh.create(); end) describe("util.indexedbheap", function () it("item can be moved from end to top", function () verify_heap_property(h); h:insert("a", 1); verify_heap_property(h); h:insert("b", 2); verify_heap_property(h); h:insert("c", 3); verify_heap_property(h); local id = h:insert("*", 10); verify_heap_property(h); h:reprioritize(id, 0); verify_heap_property(h); assert.same({ 0, "*", id }, { h:pop() }); end) end);