mirror of https://github.com/DanilaFe/abacus
110 lines
3.3 KiB
Java
Executable File
110 lines
3.3 KiB
Java
Executable File
package org.nwapw.abacus.tests;
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import org.junit.Assert;
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import org.junit.BeforeClass;
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import org.junit.Test;
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import org.nwapw.abacus.Abacus;
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import org.nwapw.abacus.config.Configuration;
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import org.nwapw.abacus.exception.DomainException;
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import org.nwapw.abacus.number.NumberInterface;
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import org.nwapw.abacus.plugin.StandardPlugin;
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import org.nwapw.abacus.tree.TreeNode;
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public class CalculationTests {
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private static Abacus abacus = new Abacus(new Configuration( "precise", new String[]{}));
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@BeforeClass
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public static void prepareTests() {
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abacus.getPluginManager().addInstantiated(new StandardPlugin(abacus.getPluginManager()));
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abacus.reload();
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}
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private void testOutput(String input, String parseOutput, String output) {
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TreeNode parsedTree = abacus.parseString(input);
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Assert.assertEquals(parsedTree.toString(), parseOutput);
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NumberInterface result = abacus.evaluateTree(parsedTree).getValue();
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Assert.assertNotNull(result);
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Assert.assertTrue(result.toString().startsWith(output));
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}
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private void testDomainException(String input, String parseOutput) {
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TreeNode parsedTree = abacus.parseString(input);
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Assert.assertEquals(parsedTree.toString(), parseOutput);
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try {
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abacus.evaluateTree(parsedTree);
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Assert.fail("Function did not throw DomainException.");
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} catch (DomainException e){ }
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}
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@Test
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public void testAddition() {
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testOutput("9.5+10", "(9.5+10)", "19.5");
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}
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@Test
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public void testSubtraction() {
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testOutput("9.5-10", "(9.5-10)", "-0.5");
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}
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@Test
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public void testMultiplication() {
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testOutput("9.5*10", "(9.5*10)", "95");
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}
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@Test
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public void testDivision() {
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testOutput("9.5/2", "(9.5/2)", "4.75");
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}
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@Test
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public void testNegation() {
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testOutput("-9.5", "(9.5)`", "-9.5");
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}
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@Test
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public void testFactorial() {
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testOutput("7!", "(7)!", "5040");
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}
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@Test
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public void testAbs() {
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testOutput("abs(-1)", "abs((1)`)", "1");
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testOutput("abs(1)", "abs(1)", "1");
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}
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@Test
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public void testLn() {
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testDomainException("ln(-1)", "ln((1)`)");
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testOutput("ln2", "ln(2)", "0.6931471805599453094172321214581765680755");
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}
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@Test
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public void testSqrt() {
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testOutput("sqrt0", "sqrt(0)", "0");
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testOutput("sqrt4", "sqrt(4)", "2");
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testOutput("sqrt2", "sqrt(2)", "1.4142135623730950488016887242096980785696");
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}
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@Test
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public void testExp() {
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testOutput("exp0", "exp(0)", "1");
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testOutput("exp1", "exp(1)", "2.718281828459045235360287471352662497757247");
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testOutput("exp300", "exp(300)", "1.9424263952412559365842088360176992193662086");
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testOutput("exp(-500)", "exp((500)`)", "7.1245764067412855315491573771227552469277568");
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}
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@Test
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public void testPow() {
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testOutput("0^2", "(0^2)", "0");
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testOutput("2^0", "(2^0)", "1");
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testOutput("2^1", "(2^1)", "2");
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testOutput("2^-1", "(2^(1)`)", "0.5");
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testOutput("2^50", "(2^50)", "112589990684262");
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testOutput("7^(-sqrt2*17)", "(7^((sqrt(2)*17))`)", "4.81354609155297814551845300063563");
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testDomainException("0^0", "(0^0)");
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testDomainException("(-13)^.9999", "((13)`^.9999)");
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}
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}
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