Add tests

Tests/FirebladeECSTests/Base.swift

@@ -10,6 +10,29 @@ import FirebladeECS
 class EmptyComponent: Component {
 }
 
+final class Optionals: Component, DefaultInitializable {
+    var int: Int?
+    var float: Float?
+    var string: String?
+
+    convenience init() {
+        self.init(nil, nil, nil)
+    }
+
+    init(_ int: Int?, _ float: Float?, _ string: String?) {
+        self.int = int
+        self.float = float
+        self.string = string
+    }
+}
+extension Optionals: Equatable {
+    static func == (lhs: Optionals, rhs: Optionals) -> Bool {
+        lhs.int == rhs.int &&
+            lhs.float == rhs.float &&
+            lhs.string == rhs.string
+    }
+}
+
 final class Name: Component, DefaultInitializable {
     var name: String
     init(name: String) {

Tests/FirebladeECSTests/EntityTests.swift

@@ -34,7 +34,7 @@ class EntityTests: XCTestCase {
         entity.assign(name, vel)
 
         let expectedComponents: [Component] = [pos, name, vel]
-        let allComponents = entity.allComponents()
+        let allComponents = Array(entity.makeComponentsIterator())
 
         XCTAssertTrue(allComponents.elementsEqualUnordered(expectedComponents) { $0 === $1 })
     }
@@ -117,6 +117,56 @@ class EntityTests: XCTestCase {
         entity[Position.self] = nil // remove position component
         XCTAssertNil(entity[Position.self])
 
+        let opts = Optionals(1, 2, "hello")
+        entity[Optionals.self] = opts
+        XCTAssertEqual(entity[Optionals.self], opts)
+
+        entity[\Optionals.float] = nil
+        XCTAssertEqual(entity[\Optionals.float], nil)
+        XCTAssertEqual(entity[\Optionals.int], 1)
+        XCTAssertEqual(entity[\Optionals.string], "hello")
+
+        entity[Optionals.self] = nil
+        XCTAssertNil(entity[Optionals.self])
+        entity[\Optionals.string] = "world"
+        XCTAssertEqual(entity[\Optionals.string], "world")
+
+        entity.assign(Comp1(12))
+        XCTAssertEqual(entity[\Comp1.value], 12)
+    }
+
+    func testComponentsIteration() {
+        let nexus = Nexus()
+        let entity = nexus.createEntity()
+        XCTAssertTrue(Array(entity.makeComponentsIterator()).isEmpty)
+        entity.assign(Position())
+        XCTAssertEqual(Array(entity.makeComponentsIterator()).count, 1)
+    }
+
+    func testEntityCreationIntrinsic() {
+        let nexus = Nexus()
+        let entity = nexus.createEntity()
+
+        let secondEntity = entity.createEntity()
+        XCTAssertNotEqual(secondEntity, entity)
+
+        let thirdEntity = secondEntity.createEntity()
+        XCTAssertNotEqual(secondEntity, thirdEntity)
+        XCTAssertNotEqual(entity, thirdEntity)
+
+        let entityWithComponents = entity.createEntity(with: Position(), Name())
+        XCTAssertTrue(entityWithComponents.has(Position.self))
+        XCTAssertTrue(entityWithComponents.has(Name.self))
+
+        XCTAssertEqual(nexus.numEntities, 4)
+        XCTAssertEqual(nexus.numComponents, 2)
+    }
+
+    func testEntityDescriptions() {
+        let nexus = Nexus()
+        let entt = nexus.createEntity()
+        XCTAssertFalse(entt.description.isEmpty)
+        XCTAssertFalse(entt.debugDescription.isEmpty)
     }
 }
 

Tests/FirebladeECSTests/XCTestManifests.swift

@@ -140,6 +140,9 @@ extension EntityTests {
     // to regenerate.
     static let __allTests__EntityTests = [
         ("testAllComponentsOfEntity", testAllComponentsOfEntity),
+        ("testComponentsIteration", testComponentsIteration),
+        ("testEntityCreationIntrinsic", testEntityCreationIntrinsic),
+        ("testEntityDescriptions", testEntityDescriptions),
         ("testEntityEquality", testEntityEquality),
         ("testEntityIdentifierAndIndex", testEntityIdentifierAndIndex),
         ("testEntityIdGenerator", testEntityIdGenerator),