function expectationMessage()

in src/assert.ts [140:148]

• 9 lines of code
• 3 McCabe index (conditional complexity)

function expectationMessage(expected: string | string[]) {
  if (Array.isArray(expected)) {
    if (expected.length > 1) {
      return `Expected one of: ${expected.join(", ")}`;
    }
    return `Expected: ${expected[0]}`;
  }
  return `Expected: ${expected}`;
}