mathkins/tests.html at main · bcurtu/mathkins · GitHub

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<!DOCTYPE html>
<html>
<head>
  <title>PadCalc Tests</title>
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/mocha/8.4.0/mocha.min.css" />
</head>
<body>
  <div id="mocha"></div>

  <script src="https://cdnjs.cloudflare.com/ajax/libs/mocha/8.4.0/mocha.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/chai/4.3.4/chai.min.js"></script>
  <script src="script.js"></script>
  <script>mocha.setup('bdd')</script>
  <script>
    const assert = chai.assert;

    describe('applyReplacements', () => {
      it("when it's an string", () => {
        const expression = 'test input';
        const expectedOutput = 'test input';
        const output = applyReplacements(expression);
        assert.equal(output, expectedOutput);
      });

      it("when has simple operations", () => {
        const expression = '3 + (6-4)*4';
        const expectedOutput = '3 + (6-4)*4';
        const output = applyReplacements(expression);
        assert.equal(output, expectedOutput);
      });

      it("when has variables", () => {
        set_variable('x', 3);
        set_variable('y', 5);
        const expression = 'x + (y-4)*4';
        const expectedOutput = '3 + (5-4)*4';
        const output = applyReplacements(expression);
        assert.equal(output, expectedOutput);
      });

      it("when has some variables", () => {
        const expression = 'x + (z-4)*4';
        const expectedOutput = '3 + (z-4)*4';
        const output = applyReplacements(expression);
        assert.equal(output, expectedOutput);
      });

      it("when operates over a range", () => {
        const expression = 'sum([1,2,3])';
        const expectedOutput = '6';
        const output = applyReplacements(expression);
        assert.equal(output, expectedOutput);
      });

      it("when uses functions", () => {
        const expression = 'sin(2+3)';
        const expectedOutput = -0.96;
        const output = eval(applyReplacements(expression)).toFixed(2);
        assert.equal(output, expectedOutput);
      });

      it("when concatenates multiple functions", () => {
        const expression = 'sin(2-3) + cos(5*3)';
        const expectedOutput = -1.6;
        const output = eval(applyReplacements(expression)).toFixed(2);
        assert.equal(output, expectedOutput);
      });

      it("with functions as other function arguments", () => {
        const expression = 'sum([sin(2-3), cos(5*3)])';
        const expectedOutput = -1.6;
        const output = eval(applyReplacements(expression)).toFixed(2);
        assert.equal(output, expectedOutput);
      });

      it("radians to degrees and degrees to radians", () => {
        const expression = 'deg(2*pi) + rad(180)';
        const output = eval(applyReplacements(expression)).toFixed(2);
        assert.equal(output, 363.14);
      });
    });

    describe('evaluate', () => {
      it("with functions as other function arguments", () => {
        const expression = 'sin(cos(5*x))';
        const expectedOutput = -0.69;
        const output = evaluate(expression).toFixed(2);
        assert.equal(output, expectedOutput);
      });

      it("with chained functions as other function arguments", () => {
        const expression = 'abs(sin(cos(5*x))) + log(e)';
        const expectedOutput = 1.69;
        const output = evaluate(expression).toFixed(2);
        assert.equal(output, expectedOutput);
      });

      it("ignores case", () => {
        const expression = 'ABS(Sin(cOS(5*x))) + lOg(e)';
        const expectedOutput = 1.69;
        const output = evaluate(expression).toFixed(2);
        assert.equal(output, expectedOutput);
      });

      it("with -%", () => {
        const expression = '30-15%';
        const expectedOutput = 25.50;
        const output = evaluate(expression).toFixed(2);
        assert.equal(output, expectedOutput);
      });

      it("with %()", () => {
        const expression = '15%(x*10)';
        const expectedOutput = 4.50;
        const output = evaluate(expression).toFixed(2);
        assert.equal(output, expectedOutput);
      });

      it("with % modulus", () => {
        const expression = '5%4';
        const expectedOutput = 1;
        const output = evaluate(expression).toFixed(2);
        assert.equal(output, expectedOutput);
      });
    });

    describe('recalculation', () => {
      it("with functions as other function arguments", () => {
        const expression = 'sin(cos(5*x))+23=0000-(4*8)-max([1,2,3])=0000+4';
        const output = recalculation(expression);
        assert.equal(output, 'sin(cos(5*x))+23=22.31-(4*8)-max([1,2,3])=-12.69+4');
      });
    });

    describe('applyStyle', () => {
      it("when it's an string", () => {
        const input = document.createElement('input');
        input.value = "texto";
        applyStyle(input);
        assert.equal(input.classList.contains("comment"), true);
      });

      it("when it's an operation", () => {
        const input = document.createElement('input');
        input.value = "3+4=7";
        applyStyle(input);
        assert.equal(input.classList.contains("comment"), false);
      });

      it("when it's an operation with ranges", () => {
        const input = document.createElement('input');
        input.value = "sum([3,4])=7";
        applyStyle(input);
        assert.equal(input.classList.contains("comment"), false);
      });

      it("when the result is a range", () => {
        const input = document.createElement('input');
        input.value = "5±7=[12,-2]";
        applyStyle(input);
        assert.equal(input.classList.contains("comment"), false);
      });

      it("when it's an assignation", () => {
        const input = document.createElement('input');
        input.value = "3+4=7->x";
        applyStyle(input);
        assert.equal(input.classList.contains("comment"), false);
      });

      it("when it's an Infinity", () => {
        const input = document.createElement('input');
        input.value = "1/0=Infinity";
        applyStyle(input);
        assert.equal(input.classList.contains("comment"), false);
      });

      it("when it's an NaN", () => {
        const input = document.createElement('input');
        input.value = "sqrt(-1)=NaN";
        applyStyle(input);
        assert.equal(input.classList.contains("comment"), false);
      });
    });

    mocha.run();
  </script>
</body>
</html>