squiggle/packages/squiggle-lang/__tests__/Reducer/Reducer_Namespace_test.res
2022-09-19 15:00:38 +04:00

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@@warning("-44")
module Namespace = Reducer_Namespace
open Jest
open Expect
open Expect.Operators
let makeValue = (v: float) => v->Reducer_T.IEvNumber
describe("Namespace", () => {
let value = makeValue(5.)
let v2 = makeValue(2.)
let ns = Namespace.make()->Namespace.set("value", value)
test("get", () => {
expect(ns->Namespace.get("value")) == Some(value)
})
test("get nonexisting value", () => {
expect(ns->Namespace.get("nosuchvalue")) == None
})
test("set", () => {
let ns2 = ns->Namespace.set("v2", v2)
expect(ns2->Namespace.get("v2")) == Some(v2)
})
test("immutable", () => {
let _ = ns->Namespace.set("v2", Reducer_T.IEvNumber(2.))
expect(ns->Namespace.get("v2")) == None
})
describe("merge many", () => {
let x1 = makeValue(10.)
let x2 = makeValue(20.)
let x3 = makeValue(30.)
let x4 = makeValue(40.)
let ns1 = Namespace.make()->Namespace.set("x1", x1)->Namespace.set("x2", x2)
let ns2 = Namespace.make()->Namespace.set("x3", x3)->Namespace.set("x4", x4)
let nsMerged = Namespace.mergeMany([ns, ns1, ns2])
test("merge many 1", () => {
expect(nsMerged->Namespace.get("x1")) == Some(x1)
})
test("merge many 2", () => {
expect(nsMerged->Namespace.get("x4")) == Some(x4)
})
test("merge many 3", () => {
expect(nsMerged->Namespace.get("value")) == Some(value)
})
})
})