1 /* 2 * Copyright (c) 2013, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.debug.test; 24 25 import java.io.ByteArrayOutputStream; 26 import java.io.PrintStream; 27 28 import org.junit.Assert; 29 import org.junit.Test; 30 31 import org.graalvm.compiler.debug.Debug; 32 import org.graalvm.compiler.debug.DebugHistogram; 33 import org.graalvm.compiler.debug.internal.DebugHistogramAsciiPrinter; 34 import org.graalvm.compiler.debug.internal.DebugHistogramRPrinter; 35 36 public class DebugHistogramTest { 37 38 @Test 39 public void testEmptyHistogram() { 40 DebugHistogram histogram = Debug.createHistogram("TestHistogram"); 41 ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); 42 43 new DebugHistogramAsciiPrinter(new PrintStream(outputStream)).print(histogram); 44 String line = outputStream.toString().split("\r?\n")[0]; 45 Assert.assertEquals("TestHistogram is empty.", line); 46 47 outputStream.reset(); 48 new DebugHistogramRPrinter(new PrintStream(outputStream)).print(histogram); 49 Assert.assertEquals("", outputStream.toString()); 50 } 51 52 @Test 53 public void testSingleEntryHistogram() { 54 DebugHistogram histogram = Debug.createHistogram("TestHistogram"); 55 ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); 56 histogram.add(new Integer(1)); 57 histogram.add(new Integer(1)); 58 new DebugHistogramAsciiPrinter(new PrintStream(outputStream)).print(histogram); 59 String[] lines = outputStream.toString().split("\r?\n"); 60 // @formatter:off 61 String[] expected = { 62 "TestHistogram has 1 unique elements and 2 total elements:", 63 "--------------------------------------------------------------------------------------------------------------------------------------------------------------------------", 64 "| 1 | 2 | ==================================================================================================== |", 65 "--------------------------------------------------------------------------------------------------------------------------------------------------------------------------" 66 }; 67 // @formatter:on 68 Assert.assertArrayEquals(expected, lines); 69 70 outputStream.reset(); 71 new DebugHistogramRPrinter(new PrintStream(outputStream)).print(histogram); 72 lines = outputStream.toString().split("\r?\n"); 73 // @formatter:off 74 expected = new String[] { 75 "TestHistogram <- c(2);", 76 "names(TestHistogram) <- c(\"1\");" 77 }; 78 // @formatter:on 79 Assert.assertArrayEquals(expected, lines); 80 } 81 82 @Test 83 public void testMultipleEntryHistogram() { 84 DebugHistogram histogram = Debug.createHistogram("TestHistogram"); 85 ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); 86 histogram.add(new Integer(1)); 87 histogram.add(new Integer(2)); 88 histogram.add(new Integer(2)); 89 new DebugHistogramAsciiPrinter(new PrintStream(outputStream)).print(histogram); 90 String[] lines = outputStream.toString().split("\r?\n"); 91 // @formatter:off 92 String[] expected = new String[] { 93 "TestHistogram has 2 unique elements and 3 total elements:", 94 "--------------------------------------------------------------------------------------------------------------------------------------------------------------------------", 95 "| 2 | 2 | ==================================================================================================== |", 96 "| 1 | 1 | ================================================== |", 97 "--------------------------------------------------------------------------------------------------------------------------------------------------------------------------" 98 }; 99 // @formatter:on 100 Assert.assertArrayEquals(expected, lines); 101 102 outputStream.reset(); 103 new DebugHistogramRPrinter(new PrintStream(outputStream)).print(histogram); 104 lines = outputStream.toString().split("\r?\n"); 105 // @formatter:off 106 expected = new String[] { 107 "TestHistogram <- c(2, 1);", 108 "names(TestHistogram) <- c(\"2\", \"1\");" 109 }; 110 // @formatter:on 111 Assert.assertArrayEquals(expected, lines); 112 } 113 114 @Test 115 public void testTooLongValueString() { 116 DebugHistogram histogram = Debug.createHistogram("TestHistogram"); 117 ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); 118 histogram.add("MyCustomValue"); 119 new DebugHistogramAsciiPrinter(new PrintStream(outputStream), Integer.MAX_VALUE, 10, 10, 1).print(histogram); 120 String[] lines = outputStream.toString().split("\r?\n"); 121 Assert.assertEquals(4, lines.length); 122 Assert.assertEquals("TestHistogram has 1 unique elements and 1 total elements:", lines[0]); 123 Assert.assertEquals("----------------------------------------", lines[1]); 124 Assert.assertEquals("| MyCusto... | 1 | ========== |", lines[2]); 125 Assert.assertEquals("----------------------------------------", lines[3]); 126 } 127 }