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Rooted by: double value
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  • Code 
    int doubleValue(int x) {
  return x * 2;
}
    Test Cases 
    // TODO: Replace examples and use TDD by writing your own tests
Describe(sampleTests) {
	It(shouldBe) {
      Assert::That(doubleValue(5), Equals(10));
      Assert::That(doubleValue(6), Equals(12));
      Assert::That(doubleValue(7), Equals(14));
      Assert::That(doubleValue(8), Equals(16));
  }
};
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  • Code
    • int doubleValue(int x) {
    • return x<<1;
    • return x * 2;
    • }