Implementation with limited tests; no javadoc yet

1 files changed, 145 insertions, 0 deletions

diff --git a/Week7/test/polynomial/PolynomialTest.java b/Week7/test/polynomial/PolynomialTest.java
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+++ b/Week7/test/polynomial/PolynomialTest.java
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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package polynomial;
+
+import java.util.Scanner;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import static org.junit.Assert.*;
+
+/**
+ *
+ * @author camilstaps
+ */
+public class PolynomialTest {
+    
+    public PolynomialTest() {
+    }
+    
+    @BeforeClass
+    public static void setUpClass() {
+    }
+    
+    @AfterClass
+    public static void tearDownClass() {
+    }
+    
+    @Before
+    public void setUp() {
+    }
+    
+    @After
+    public void tearDown() {
+    }
+
+    /**
+     * Test of toString method, of class Polynomial.
+     */
+    @Test
+    public void testToString() {
+        System.out.println("toString");
+        Polynomial instance = new Polynomial("3 5 -4 1 2.5 0 -3.4 -7");     // Test exp=0, exp=1, exp>1, positive & negative integer & floating point coefficients
+        String expResult = "3.000000x^5-4.000000x+2.500000-3.400000x^-7";
+        String result = instance.toString();
+        assertEquals(expResult, result);
+    }
+
+    /**
+     * Test of minus method, of class Polynomial.
+     */
+    @Test
+    public void testMinus() {
+        System.out.println("minus");
+        Polynomial b = new Polynomial("5 3 4 2 3 1 10 0"); // 5x^3 + 4x^2 + 3x + 10
+        Polynomial instance = new Polynomial("7 4 -4 2 3 1 5 0"); // 7x^4 - 4x^2 + 3x + 5
+        instance.minus(b);
+        assertEquals(new Polynomial("7 4 -5 3 -8 2 -5 0"), instance); // 7x^4 - 5x^3 - 8x^2 - 5
+    }
+
+    /**
+     * Test of times method, of class Polynomial.
+     */
+    @Test
+    public void testTimes() {
+        System.out.println("times");
+        Polynomial b = new Polynomial("5 3 4 2");
+        Polynomial instance = new Polynomial("7 1 6 3");
+        instance.times(b);
+        assertEquals(new Polynomial("30 6 24 5 35 4 28 3"), instance);
+    }
+
+    /**
+     * Test of divide method, of class Polynomial.
+     */
+    @Test
+    public void testDivide() {
+        System.out.println("divide");
+        Polynomial b = null;
+        Polynomial instance = new Polynomial();
+        instance.divide(b);
+        // TODO review the generated test code and remove the default call to fail.
+        fail("The test case is a prototype.");
+    }
+
+    /**
+     * Test of equals method, of class Polynomial.
+     */
+    @Test
+    public void testEquals() {
+        System.out.println("equals");
+        Object other_poly = new Polynomial("3 5 4 2");
+        Polynomial instance = new Polynomial("4 2 3 5");
+        boolean expResult = true;
+        boolean result = instance.equals(other_poly);
+        assertEquals(expResult, result);
+    }
+
+    /**
+     * Test of plus method, of class Polynomial.
+     */
+    @Test
+    public void testPlus_Polynomial() {
+        System.out.println("plus");
+        Polynomial b = new Polynomial("5 3 4 2 3 1 10 0");              // 5x^3 + 4x^2 + 3x + 10
+        Polynomial instance = new Polynomial("7 4 -4 2 7 1 5 0");       // 7x^4 - 4x^2 + 7x + 5
+        instance.plus(b);
+        assertEquals(new Polynomial("7 4 5 3 10 1 15 0"), instance);    // 7x^4 + 5x^3 + 10x + 15
+    }
+
+    /**
+     * Test of plus method, of class Polynomial.
+     */
+    @Test
+    public void testPlus_Term() {
+        System.out.println("plus");
+        Term t = Term.scanTerm(new Scanner("5 3"));
+        
+        Polynomial instance = new Polynomial("4 7 2 3 1 0");            // normal addition
+        instance.plus(t);
+        assertEquals(new Polynomial("4 7 7 3 1 0"), instance);
+        
+        instance = new Polynomial("4 7 -5 3 1 0");                      // addition when the term cancels out
+        instance.plus(t);
+        assertEquals(new Polynomial("4 7 1 0"), instance);
+    }
+
+    /**
+     * Test of apply method, of class Polynomial.
+     */
+    @Test
+    public void testApply() {
+        System.out.println("apply");
+        double x = 17.0;
+        Polynomial instance = new Polynomial("5 4 0.5 3 9 2 8 0");
+        double expResult = 422670.5;
+        double result = instance.apply(x);
+        assertEquals(expResult, result, 0.0);
+    }
+    
+}