Implementation
Future<void> testNumbers() async {
newController(); // initializes late final values.
// Only really needed if no prior test has done this.
await expect(Operations.n0.numericValue, 0x0);
await expect(Operations.n1.numericValue, 0x1);
await expect(Operations.n2.numericValue, 0x2);
await expect(Operations.n3.numericValue, 0x3);
await expect(Operations.n4.numericValue, 0x4);
await expect(Operations.n5.numericValue, 0x5);
await expect(Operations.n6.numericValue, 0x6);
await expect(Operations.n7.numericValue, 0x7);
await expect(Operations.n8.numericValue, 0x8);
await expect(Operations.n9.numericValue, 0x9);
}