open Jest
open Reducer_TestHelpers

describe("Parse function assignment", () => {
  testParseToBe("f(x)=x", "Ok(f = {|x| {x}})")
  testParseToBe("f(x)=2*x", "Ok(f = {|x| {(multiply)(2, x)}})")
  //MathJs does not allow blocks in function definitions
})

describe("Evaluate function assignment", () => {
  testEvalToBe("f(x)=x; f(1)", "Ok(1)")
})

describe("Shadowing", () => {
  testEvalToBe("x = 5; f(y) = x*y; x = 6; f(2)", "Ok(10)")
})