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Fix diamond graphs

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This commit is contained in:
Aaron Smith 2023-10-25 15:49:35 +01:00
parent da85cbbac8
commit 8218e4702f
2 changed files with 140 additions and 27 deletions
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84
test/tests.luau
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@ -1,5 +1,5 @@
local testkit = require("test/testkit")
local TEST, CASE, CHECK, FINISH = testkit.test()
local TEST, CASE, CHECK, FINISH, SKIP = testkit.test()
local mock = require "test/mock"
local Instance, Signal = mock.Instance, mock.Signal
@ -33,6 +33,8 @@ local NIL = nil :: any
vide.strict = false
--SKIP "graph edge cases"
TEST("graph", function()
local create_node = graph.create_node
local track = graph.track
@ -1907,7 +1909,85 @@ TEST("nested effects cases", function()
root(App)
end)
vide.strict = true
TEST("graph edge cases", wrap_root(function()
local source = vide.source
local derive = vide.derive
local effect = vide.effect
do CASE "diamond A,B,C,D"
--[[
a > b > d
> c >
]]
local a = source(0)
local b = derive(function() return (a() % 2 == 0) and 1 or 0 end)
local c = derive(function() return a() * 2 end)
local d = derive(function() return b() + c() end)
local count = { b = 0, c = 0, d = 0 }
effect(function() b(); count.b += 1 end)
effect(function() c(); count.c += 1 end)
effect(function() d(); count.d += 1 end)
a(1)
CHECK(count.b == 2)
CHECK(count.c == 2)
CHECK(count.d == 2)
CHECK(d() == 2)
a(3)
CHECK(count.b == 2)
CHECK(count.c == 3)
CHECK(count.d == 3)
CHECK(d() == 6)
end
do CASE "diamond A,B,C,D,E"
--[[
a > b > > e
> c > d >
]]
local a = source(0)
local b = derive(function() print "ran b"; return (a() % 2 == 0) and 1 or 0 end)
local c = derive(function() print "ran c"; return a() * 2 end)
local d = derive(function() print "ran d"; return c() * 2 end)
local e = derive(function() print "ran e"; return b() + c() end)
local count = { b = 0, c = 0, d = 0, e = 0 }
effect(function() b(); count.b += 1 end)
effect(function() c(); count.c += 1 end)
effect(function() d(); count.d += 1 end)
effect(function() d(); count.e += 1 end)
a(1)
print(e())
CHECK(count.b == 2)
CHECK(count.c == 2)
CHECK(count.d == 2)
CHECK(count.e == 2)
CHECK(e() == 4) -- todo: solve e evaluating before d
a(3)
CHECK(count.b == 2)
CHECK(count.c == 3)
CHECK(count.d == 3)
CHECK(count.e == 3)
CHECK(e() == 12)
end
do CASE "repeated read"
end
end))
TEST("strict", wrap_root(function()
vide.strict = true