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SassMeister-input.scss

// ----
// Sass (v3.4.21)
// Compass (v1.0.3)
// ----

/*
  Recursion in Sass #2 - Fibonacci
  (c) Donald Leung.  All rights reserved.
*/

// Code

@function fibonacci($n) {
  @return if($n == 0, 1, if($n == 1, 1, fibonacci($n - 1) + fibonacci($n - 2)));
}

// Pseudo-test cases

.test-1 {
  description: "base case 1";
  n: 0;
  expected: 1;
  actual: fibonacci(0);
  pass: fibonacci(0) == 1;
}
.test-2 {
  description: "base case 2";
  n: 1;
  expected: 1;
  actual: fibonacci(1);
  pass: fibonacci(1) == 1;
}
.test-3 {
  n: 5;
  expected: 8;
  actual: fibonacci(5);
  pass: fibonacci(5) == 8;
}
.test-4 {
  n: 10;
  expected: 89;
  actual: fibonacci(10);
  pass: fibonacci(10) == 89;
}

SassMeister-output.css

/*
  Recursion in Sass #2 - Fibonacci
  (c) Donald Leung.  All rights reserved.
*/
.test-1 {
  description: "base case 1";
  n: 0;
  expected: 1;
  actual: 1;
  pass: true;
}

.test-2 {
  description: "base case 2";
  n: 1;
  expected: 1;
  actual: 1;
  pass: true;
}

.test-3 {
  n: 5;
  expected: 8;
  actual: 8;
  pass: true;
}

.test-4 {
  n: 10;
  expected: 89;
  actual: 89;
  pass: true;
}