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feat: add reactive()

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littensy 2025-11-18 20:39:37 -08:00
parent 7bad215560
commit bd23d54374
26 changed files with 1129 additions and 569 deletions
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73
packages/charm-sync/src/__tests__/server.spec.luau
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@ -69,6 +69,33 @@ test("should replicate partial state patches", function()
assert(patch.isNone(payloads[1].data.b), "Expected patch payload to contain atom 'b' as None")
end)
test("should replicate partial state patches (reactive)", function()
local client = {}
local a: { [string]: number? } = Charm.reactive({ x = 0, y = 0, z = 0 })
local target, payloads
server.addSignalsToClient(client, { a = a })
server.connect(function(...)
target, payloads = ...
end)
server.flush()
assert(target == client, "Expected target to be the client")
assert(payloads[1].type == "init", "Expected first payload to be init")
assert(payloads[1].data.a.x == a.x, "Expected init payload to contain value 'a.x'")
assert(payloads[1].data.a.y == a.y, "Expected init payload to contain value 'a.y'")
assert(payloads[1].data.a.z == a.z, "Expected init payload to contain value 'a.z'")
a.x = 1
a.z = nil
server.flush()
assert(target == client, "Expected target to be the client")
assert(payloads[1].type == "patch", "Expected first payload to be patch")
assert(payloads[1].data.a.x == 1, "Expected patch payload to contain value 'a.x'")
assert(payloads[1].data.a.y == nil, "Expected patch payload to not contain value 'a.y'")
assert(patch.isNone(payloads[1].data.a.z), "Expected patch payload to contain value 'a.z' as None")
end)
test("should init new clients", function()
local clientA = {}
local clientB = {}
@ -89,8 +116,8 @@ test("should init new clients", function()
assert(payloadsA[1].type == "init", "Expected first payload to be init for client A")
assert(payloadsA[1].data.a == a(), "Expected init payload to contain atom 'a' for client A")
server.addSignalsToClient(clientB, { a = a })
a(2)
server.addSignalsToClient(clientB, { a = a })
server.flush()
assert(payloadsA[1].type == "patch", "Expected first payload to be patch for client A")
assert(payloadsA[1].data.a == a(), "Expected patch payload to contain atom 'a' for client A")
@ -166,20 +193,6 @@ test("should only replicate to synced clients", function()
assert(payloadsB[1].data.a == nil, "Expected patch payload to not contain atom 'a' for client B")
end)
test("should validate state", function()
local client = {}
local a = Charm.atom({})
server.addSignalsToClient(client, { a = a })
server.connect(function() end)
a({ [0.5] = true })
assert(not pcall(server.flush), "Expected server.flush to fail")
a({ [0.5] = true, valid = true })
server.flush()
end)
test("should serialize state", function()
local client = {}
local a = Charm.atom({ 1, 2, 3, 4, 5 })
@ -236,6 +249,36 @@ describe("historical", function()
assert(payloads[3].data.b == 2, "Expected patch payload to contain atom 'b'")
end)
test("should replicate granular state changes (reactive)", function()
local client = {}
local a = Charm.reactive({ value = 0 })
local b = Charm.reactive({ value = 0 })
local c = Charm.reactive({ value = 0 })
local target, payloads
server.addSignalsToClient(client, { a = a, b = b, c = c })
server.connect(function(...)
target, payloads = ...
end)
server.flush()
assert(target == client, "Expected target to be the client")
assert(payloads[1].type == "init", "Expected first payload to be init")
assert(payloads[1].data.a.value == 0, "Expected init payload to contain atom 'a'")
assert(payloads[1].data.b.value == 0, "Expected init payload to contain atom 'b'")
assert(payloads[1].data.c.value == 0, "Expected init payload to contain atom 'c'")
a.value = 1
a.value = 2
b.value = 2
server.flush()
assert(target == client, "Expected target to be the client")
assert(payloads[1].type == "patch", "Expected first payload to be patch")
assert(payloads[1].data.a.value == 1, "Expected patch payload to contain atom 'a'")
assert(payloads[2].data.a.value == 2, "Expected patch payload to contain atom 'a'")
assert(payloads[3].data.b.value == 2, "Expected patch payload to contain atom 'b'")
end)
test("should init new clients", function()
local clientA = {}
local clientB = {}