/* * LingPipe v. 3.5 * Copyright (C) 2003-2008 Alias-i * * This program is licensed under the Alias-i Royalty Free License * Version 1 WITHOUT ANY WARRANTY, without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Alias-i * Royalty Free License Version 1 for more details. * * You should have received a copy of the Alias-i Royalty Free License * Version 1 along with this program; if not, visit * http://alias-i.com/lingpipe/licenses/lingpipe-license-1.txt or contact * Alias-i, Inc. at 181 North 11th Street, Suite 401, Brooklyn, NY 11211, * +1 (718) 290-9170. */ package com.aliasi.test.unit.util; import com.aliasi.util.Arrays; import com.aliasi.test.unit.BaseTestCase; import java.util.Iterator; import java.util.NoSuchElementException; import java.util.HashSet; import java.util.Set; public class ArraysTest extends BaseTestCase { public void testAdd() { testAdd("",'a',"a"); testAdd("b",'a',"ab"); testAdd("b",'b',"b"); testAdd("b",'c',"bc"); testAdd("dg",'a',"adg"); testAdd("dg",'d',"dg"); testAdd("dg",'e',"deg"); testAdd("dg",'g',"dg"); testAdd("dg",'h',"dgh"); testAdd("dgj",'d',"dgj"); testAdd("dgj",'g',"dgj"); testAdd("dgj",'j',"dgj"); testAdd("dgj",'a',"adgj"); testAdd("dgj",'e',"degj"); testAdd("dgj",'h',"dghj"); testAdd("dgj",'k',"dgjk"); } void testAdd(String csIn, char c, String csOut) { char[] cs = csIn.toCharArray(); char[] cs2 = Arrays.add(c,cs); assertEquals(csOut,new String(cs2)); } public void testPermute() { Integer[] xs = new Integer[0]; Arrays.permute(xs); xs = new Integer[1]; xs[0] = new Integer(5); Arrays.permute(xs); assertEquals(new Integer(5), xs[0]); xs = new Integer[2]; xs[0] = new Integer(0); xs[1] = new Integer(1); Arrays.permute(xs); assertTrue(( xs[0].equals(new Integer(0)) && xs[1].equals(new Integer(1)) ) || ( xs[0].equals(new Integer(1)) && xs[1].equals(new Integer(0))) ); xs = new Integer[100]; for (int i = 0; i < 100; ++i) xs[i] = new Integer(i); Arrays.permute(xs); Set resultSet = new HashSet(200); for (int i = 0; i < xs.length; ++i) { int val = xs[i].intValue(); assertTrue(0 resultSet.add(xs[i]); } assertEquals(100,resultSet.size()); } public void testReallocate() { int[] xs = new int[] { 1, 2, 3 }; assertReallocate(xs,5); assertReallocate(xs,3); assertReallocate(xs,1); assertReallocate(xs,0); int[] zs = new int[] { }; assertReallocate(zs,0); assertReallocate(zs,3); } void assertReallocate(int[] xs, int len) { int[] ys = Arrays.reallocate(xs,len); assertEquals(len,ys.length); for (int i = 0; i < xs.length && i < len; ++i) assertEquals(xs[i],ys[i]); for (int i = xs.length; i < ys.length; ++i) assertEquals(0,ys[i]); } public void testEquals() { String[] xs1 = new String[] { "a", "b", "c" }; String[] xs2 = new String[] { "a", "b", "c" }; String[] xs3 = new String[] { "a", "b" }; assertTrue(Arrays.equals(xs1,xs2)); assertFalse(Arrays.equals(xs2,xs3)); assertTrue(Arrays.equals(new Object[0], new Object[0])); } public void testArrayToCSV2D() { assertCSV2D("",new String[][] { { "" } }); assertCSV2D("a",new String[][] { { "a" } }); assertCSV2D("a,b",new String[][] { { "a", "b" } }); assertCSV2D("\\\n",new String[][] { { "\n" } }); assertCSV2D("\n",new String[][] { { "" }, {""} }); assertCSV2D("\n\n",new String[][] { { "" }, {""}, {""} }); assertCSV2D("a,b\nc,d", new String[][] { { "a", "b" }, { "c", "d" } }); assertCSV2D("a,b\\\n\nc,d", new String[][] { { "a", "b\n" }, { "c", "d" } }); } void assertCSV2D(String expectedEncoding, String[][] expectedElts) { String encoding = Arrays.arrayToCSV(expectedElts); assertEquals(expectedEncoding + "=?=" + encoding, expectedEncoding,encoding); String[][] elts = Arrays.csvToArray2D(expectedEncoding); assertEquals(expectedElts.length + "=?=" + elts.length, expectedElts.length,elts.length); for (int i = 0; i < elts.length; ++i) assertEqualsArray(expectedElts[i],elts[i]); } public void testArraytoCSV() { assertCSV("", new String[] { "" }); assertCSV(",", new String[] { "", "" }); assertCSV(",,", new String[] { "","", "" }); assertCSV(",a", new String[] { "","a" }); assertCSV("a,", new String[] { "a","" }); assertCSV("a", new String[] { "a" }); assertCSV("abc,d", new String[] { "abc", "d" }); assertCSV("abc,d,e,,f", new String[] { "abc", "d", "e", "", "f" }); assertCSV("a\\,bc,d\\\\,e,,f", new String[] { "a,bc", "d\\", "e", "", "f" }); assertCSV("\\\n", new String[] { "\n" }); } void assertCSV(String expectedEncoding, String[] expectedElts) { String encoding = Arrays.arrayToCSV(expectedElts); assertEquals("decode(" + java.util.Arrays.asList(expectedElts) + ")=" + encoding, expectedEncoding,encoding); String[] elts = Arrays.csvToArray(expectedEncoding); assertEqualsArray("decode(" + expectedEncoding + ")=" + java.util.Arrays.asList(elts), expectedElts,elts); } public void testMemberObject() { assertFalse(Arrays.member("a",null)); assertFalse(Arrays.member("a",new Object[] { "b", null })); assertFalse(Arrays.member("a",new Object[] { })); assertTrue(Arrays.member("a",new Object[] { "a" })); assertTrue(Arrays.member("a",new Object[] { null, "a" })); } public void testMemberChar() { assertFalse(Arrays.member('a',null)); assertFalse(Arrays.member('a',new char[] { })); assertFalse(Arrays.member('a',new char[] { 'b', 'c' })); assertTrue(Arrays.member('a',new char[] { 'a' })); assertTrue(Arrays.member('a',new char[] { 'b', 'a' })); } public void testArrayToString() { assertEquals("[]",Arrays.arrayToString(new Object[] { })); assertEquals("[a]",Arrays.arrayToString(new Object[] { "a" })); assertEquals("[a,b]",Arrays.arrayToString(new Object[] { "a", "b" })); } public void testArrayToStringBuffer() { StringBuffer sb = new StringBuffer(); Arrays.arrayToStringBuffer(sb,new Object[] { }); assertEquals("[]",sb.toString()); sb = new StringBuffer(); Arrays.arrayToStringBuffer(sb,new Object[] { "a" }); assertEquals("[a]",sb.toString()); sb = new StringBuffer(); Arrays.arrayToStringBuffer(sb,new Object[] { "a", "b" }); assertEquals("[a,b]",sb.toString()); } public void testConcatenate() { assertEqualsArray(new String[] { }, Arrays.concatenate(new String[] { }, new String[] { })); assertEqualsArray(new String[] { "a" }, Arrays.concatenate(new String[] { "a" }, new String[] { })); assertEqualsArray(new String[] { "b" }, Arrays.concatenate(new String[] { }, new String[] { "b" })); assertEqualsArray(new String[] { "a","b","c","d" }, Arrays.concatenate(new String[] { "a", "b" }, new String[] { "c", "d" })); } }
