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//
// MemberTests.swift
// ShapeScriptTests
//
// Created by Nick Lockwood on 30/10/2023.
// Copyright © 2023 Nick Lockwood. All rights reserved.
//
@testable import Euclid
@testable import ShapeScript
import XCTest
final class MemberTests: XCTestCase {
// MARK: member access
func testTupleVectorLookup() {
let program = "print (1 0).x"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [1.0])
}
func testOutOfBoundsTupleVectorLookup() {
let program = "print (1 0).z"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [0.0])
}
func testTooLongTupleVectorLookup() {
let program = "print (1 2 3 4).x"
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
guard case .unknownMember("x", of: "tuple", _)? = error?.type else {
XCTFail()
return
}
}
}
func testSingleElementTupleVectorLookup() {
let program = "print (1).x"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [1.0])
}
func testNestedSingleElementTupleVectorLookup() {
let program = "print (1 (2)).x"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [1.0])
}
func testNestedSingleElementTupleVectorLookup2() {
let program = "print ((1) 2).x"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [1.0])
}
func testStringTupleVectorLookup() {
let program = "print (\"1\" \"2\").x"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [1.0])
}
func testMixedTupleVectorLookup() {
let program = "print (\"1\" 2).x"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [1.0])
}
func testTupleSizeHeightLookup() {
let program = "print (1 0.5).height"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [0.5])
}
func testTupleSizeDepthLookup() {
let program = "print (1 0.5).depth"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [1.0])
}
func testTupleRotationRollLookup() {
let program = "print (1 0.5).roll"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssert(delegate.log == [1.0] || delegate.log == [-1])
}
func testTupleRotationPitchLookup() {
let program = "print (1 0.5).pitch"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [0.0])
}
func testTupleRGBARedLookup() {
let program = "print (0.1 0.2 0.3 0.4).red"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [0.1])
}
func testTupleRGBAlphaLookup() {
let program = "print (0.1 0.2 0.3).alpha"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [1.0])
}
func testTupleIAGreenLookup() {
let program = "print (0.1 0.2).green"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [0.1])
}
func testTupleIAAlphaLookup() {
let program = "print (0.1 0.2).alpha"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [0.2])
}
func testHexAlphaLookup() {
let program = "print #f00.alpha"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [1])
}
func testHexTupleAlphaLookup() {
let program = "print (#f00 0.2).alpha"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [0.2])
}
func testHexStringAlphaLookup() {
let program = "print \"#f00\".alpha"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [1])
}
func testHexStringTupleAlphaLookup() {
let program = "print (\"#f00\" 0.2).alpha"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [0.2])
}
func testTooLongTupleColorLookup() {
let program = "print (1 2 3 4 5).red"
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.message, "Member 'red' not found for tuple")
XCTAssertNotEqual(error?.suggestion, "red")
guard case .unknownMember("red", of: "tuple", _) = error?.type else {
XCTFail()
return
}
}
}
func testEmptyTupleColorLookup() {
let program = "print ().blue"
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.message, "Member 'blue' not found for empty tuple")
XCTAssertNotEqual(error?.suggestion, "blue")
guard case .unknownMember("blue", of: "empty tuple", _) = error?.type else {
XCTFail()
return
}
}
}
func testTupleWordsLookup() {
let program = "print (\"foo\" 1 2).words"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, ["foo1", "2"])
}
func testTupleCharactersLookup() {
let program = "print (\"foo\" 1).characters"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, ["f", "o", "o", "1"])
}
func testNonNumericColorLookup() {
let program = "print (\"foo\" \"bar\").red"
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.message, "Member 'red' not found for tuple")
guard case .unknownMember("red", of: "tuple", _)? = error?.type else {
XCTFail()
return
}
}
}
func testTupleNonexistentLookup() {
let program = "print (1 2).foo"
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.message, "Member 'foo' not found for tuple")
guard case .unknownMember("foo", of: "tuple", _) = error?.type else {
XCTFail()
return
}
}
}
func testColorWidthLookup() {
let program = "color 1 0.5\nprint color.width"
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.message, "Member 'width' not found for color")
guard case .unknownMember("width", of: "color", _)? = error?.type else {
XCTFail()
return
}
}
}
func testRotationXLookup() {
let program = """
cube {
print orientation.x
}
"""
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.message, "Member 'x' not found for rotation")
guard case .unknownMember("x", of: "rotation", _)? = error?.type else {
XCTFail()
return
}
}
}
func testRotationYawLookup() {
let program = """
cube {
orientation 0.3 0.2 0.1
print orientation.yaw
}
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log.first as? Double ?? 0, 0.2, accuracy: epsilon)
}
func testTupleOrdinalLookup() {
let program = "define col 1 0.5\nprint col.second"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log.first as? Double ?? 0, 0.5, accuracy: epsilon)
}
func testTupleMisspelledOrdinalLookup() {
let program = "define col 1 0.5\nprint col.scond"
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.message, "Member 'scond' not found for tuple")
XCTAssertEqual(error?.hint, "Did you mean 'second'?")
}
}
func testTupleOrdinalOutOfBoundsLookup() {
let program = "define col 1 0.5\nprint col.third"
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.message, "Member 'third' not found for tuple")
XCTAssertEqual(error?.hint, "Valid range is 'first' to 'second'.")
guard case .unknownMember("third", of: "tuple", _)? = error?.type else {
XCTFail()
return
}
}
}
func testTupleMisspelledOutOfBoundsOrdinalLookup() {
let program = "define col 1 0.5\nprint col.thidr"
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.message, "Member 'thidr' not found for tuple")
XCTAssertEqual(error?.hint, "Did you mean 'third'?")
}
}
func testTupleVeryHighOrdinalLookups() {
let numbers = (1 ... 99).map { $0.description }.joined(separator: " ")
let program = """
define foo \(numbers)
print foo.tenth
print foo.nineteenth
print foo.twentythird
print foo.thirtyninth
print foo.fortyseventh
print foo.fiftythird
print foo.sixtyeighth
print foo.seventyfirst
print foo.eightysixth
print foo.ninetysecond
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [10, 19, 23, 39, 47, 53, 68, 71, 86, 92])
}
func testTupleCountLastRestLookup() {
let program = """
define foo 2 4 6
print foo.count
print foo.last
print foo.allButFirst
print foo.allButLast
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [3, 6, 4, 6, 2, 4])
}
func testSingleValueOrdinalLookup() {
let program = """
define foo 10
print foo.first
print foo.count
print foo.last
print foo.allButFirst
print foo.allButLast
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [10, 1, 10])
}
func testEmptyTupleOrdinalLookup() {
let program = """
define foo ()
print foo.count
print foo.allButFirst
print foo.allButLast
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [0])
}
func testSingleNumberXComponentLookup() {
let program = """
define foo 10
print foo.x
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [10])
}
func testSingleVectorYComponentLookup() {
let program = """
define foo 1 2 3
define bar foo
print bar.y
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [2])
}
func testSingleVectorColorComponentLookup() {
let program = """
define foo color
define bar foo
print bar.red
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [1])
}
func testMeshVolumeLookup() throws {
let program = """
print cube.volume
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [1.0])
}
func testMeshBoundsLookup() {
let program = """
print (fill square).bounds
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [Bounds(
min: .init(-0.5, -0.5, 0),
max: .init(0.5, 0.5, 0)
)])
}
func testMeshPolygonsLookup() throws {
let program = """
print (fill square).polygons
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, Mesh.fill(.square()).polygons)
}
func testUnionPolygonsLookup() throws {
let program = """
print (union cube).polygons
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, Mesh.cube().polygons)
}
func testBlockUnionPolygonsLookup() throws {
let program = """
define shape { union { cube } }
print shape.polygons
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, Mesh.cube().polygons)
}
func testPathPolygonsLookup() throws {
let program = """
print square.polygons
"""
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.message, "Member 'polygons' not found for path")
guard case .unknownMember("polygons", of: "path", _)? = error?.type else {
XCTFail()
return
}
}
}
func testCameraPolygonsLookup() throws {
let program = """
print camera.polygons
"""
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.message, "Member 'polygons' not found for camera")
guard case .unknownMember("polygons", of: "camera", _)? = error?.type else {
XCTFail()
return
}
}
}
func testInvalidMeshComponentLookup() {
let program = """
print (fill { circle }).x
"""
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.message, "Member 'x' not found for mesh")
guard case .unknownMember("x", of: "mesh", _)? = error?.type else {
XCTFail()
return
}
}
}
func testPolygonPointsLookup() throws {
let program = """
print cube.polygons.first.points
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
let points = try XCTUnwrap(delegate.log as? [PathPoint])
XCTAssertEqual(points.count, 4)
}
func testPolygonCenterLookup() throws {
let program = """
print cube.polygons.first.center
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
let center = try XCTUnwrap(delegate.log as? [Vector]).first
XCTAssertEqual(center, Vector(0.5, 0, 0))
}
func testPolygonCentreWithBritishSpelling() throws {
let program = """
print cube.polygons.first.centre
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
let center = try XCTUnwrap(delegate.log as? [Vector]).first
XCTAssertEqual(center, Vector(0.5, 0, 0))
}
func testPointColorLookup() throws {
let program = """
define foo path {
color red
point 0 0
color green
point 1 0
point 1 1
}
print foo.points.first.color
print foo.points.second.color
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [Color.red, Color.green])
}
func testPointColourWithBritishSpelling() throws {
let program = """
define foo path {
color red
point 0 0
colour green
point 1 0
point 1 1
}
print foo.points.first.colour
print foo.points.third.color
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [Color.red, Color.green])
}
func testMemberPrecedence() {
let program = """
define a 0.5 0.3
define b 0.2 0.4
print a.x * b.x + a.y * b.y
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [0.22])
}
func testMemberChaining() {
let program = """
define a (1 2 3) (4 5 6)
print a.second.y
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [5])
}
func testNestedMemberLookup() {
let program = """
define a ((1 2 3) (4))
print a.second.first
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [4])
}
func testBlockResultTupleValueLookup() {
let program = """
define a {
option b 0
b + 1
b + 2
}
define c a { b 4 }
print c.second
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [6])
}
func testFunctionResultTupleValueLookup2() {
let program = """
define a(b) {
b + 1
b + 2
}
define c a(4)
print c.second
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [6])
}
func testFunctionResultNestedTupleValueLookup() {
let program = """
define a(b) {
(b + 1 b + 2)
(b + 3 b + 4)
}
define c a(4)
print c.second.first
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [7])
}
func testFunctionResultNestedTuplesCollapsedIfNeeded() {
let program = """
define triangle {
polygon {
point 1 0
point 1 1
point 0 1
}
}
define triangles {
for 1 to 3 {
triangle
}
}
define triangles2 {
for 1 to 3 {
triangles
}
}
mesh { triangles2 }
"""
XCTAssertNoThrow(try evaluate(parse(program), delegate: nil))
}
// MARK: subscripting
func testTupleVectorSubscripting() {
let program = "print (1 0)[\"x\"]"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [1.0])
}
func testTupleVectorIndexing() {
let program = "print (1 0)[0]"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [1.0])
}
func testNestedTupleVectorIndexing() {
let program = """
define values 1 0
print (values)[1]
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [0.0])
}
func testTupleVectorNegativeIndexing() {
let program = "print (1 0)[-1]"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [0.0])
}
func testOutOfBoundsTupleVectorSubscripting() {
let program = "print (1 0)[\"z\"]"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [0.0])
}
func testNonExistentTupleVectorSubscripting() {
let program = "print (1 0)[\"w\"]"
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
guard case .unknownMember("w", of: "tuple", _)? = error?.type else {
XCTFail()
return
}
}
}
func testOutOfBoundsTupleVectorIndexing() {
let program = "print (1 0)[2]"
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.type, .invalidIndex(2, range: -2 ..< 2))
}
}
func testOutOfBoundsTupleVectorNegativeIndexing() {
let program = "print (1 0)[-3]"
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.type, .invalidIndex(-3, range: -2 ..< 2))
}
}
func testFunctionResultNestedTupleValueIndexing() {
let program = """
define a(b) {
(b + 1 b + 2)
(b + 3 b + 4)
}
define c a(4)
print c[1][0]
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [7])
}
func testFunctionMixedTupleValueLookupAndIndexing() {
let program = """
define a(b) {
(b + 1 b + 2)
(b + 3 b + 4)
}
define c a(4)
print c.second[0]
print c[1].first
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [7, 7])
}
func testParameterSubscripting() {
let program = """
define foo(bar) {
bar[0]
}
print foo(0 1)
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [0.0])
}
func testRangeIndexing() {
let program = "print (1 to 4)[1]"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [2.0])
}
func testRangeNegativeIndexing() {
let program = "print (1 to 4)[-2]"
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [3.0])
}
func testObjectSubscripting() {
let program = """
define foo object {
a 5
b "hello"
}
print foo.a
print foo.b
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
XCTAssertEqual(delegate.log, [5.0, "hello"])
}
func testObjectFirstIndex() {
let program = """
define foo object {
a 5
b "hello"
}
// You can always access first element due to automatic tuple promotion
print foo.first
print foo[0]
"""
let delegate = TestDelegate()
XCTAssertNoThrow(try evaluate(parse(program), delegate: delegate))
let object: [String: AnyHashable] = ["a": 5.0, "b": "hello"]
XCTAssertEqual(delegate.log, [object, object])
}
func testObjectOrdinalSubscripting() {
let program = """
define foo object {
a 5
b "hello"
}
print foo.second
"""
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.type, .unknownMember("second", of: "object", options: ["a", "b"]))
}
}
func testInvalidObjectSubscripting() {
let program = """
define foo object {
a 5
b "hello"
}
print foo.c
"""
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.type, .unknownMember("c", of: "object", options: ["a", "b"]))
}
}
func testObjectIndexedSubscripting() {
let program = """
define foo object {
a 5
b "hello"
}
print foo[1]
"""
XCTAssertThrowsError(try evaluate(parse(program), delegate: nil)) { error in
let error = try? XCTUnwrap(error as? RuntimeError)
XCTAssertEqual(error?.type, .invalidIndex(1, range: -1 ..< 1))
}
}
}