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1 /* |
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2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 /* |
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25 * @test |
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26 * @bug 7150368 8003412 8000407 |
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27 * @summary javac should include basic ability to generate native headers |
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28 */ |
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29 |
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30 import java.io.File; |
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31 import java.io.FileWriter; |
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32 import java.io.IOException; |
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33 import java.lang.annotation.Annotation; |
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34 import java.lang.annotation.Retention; |
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35 import java.lang.annotation.RetentionPolicy; |
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36 import java.lang.reflect.InvocationTargetException; |
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37 import java.lang.reflect.Method; |
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38 import java.util.ArrayList; |
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39 import java.util.Arrays; |
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40 import java.util.HashSet; |
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41 import java.util.List; |
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42 import java.util.Set; |
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43 |
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44 import javax.tools.StandardJavaFileManager; |
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45 import javax.tools.StandardLocation; |
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46 |
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47 import com.sun.source.util.JavacTask; |
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48 import com.sun.tools.javac.api.JavacTool; |
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49 |
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50 public class NativeHeaderTest { |
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51 public static void main(String... args) throws Exception { |
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52 new NativeHeaderTest().run(); |
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53 } |
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54 |
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55 /** How to invoke javac. */ |
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56 enum RunKind { |
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57 /** Use the command line entry point. */ |
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58 CMD, |
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59 /** Use the JavaCompiler API. */ |
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60 API |
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61 }; |
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62 |
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63 /** Which classes for which to generate headers. */ |
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64 enum GenKind { |
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65 /** Just classes with native methods or the marker annotation. */ |
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66 SIMPLE, |
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67 /** All appropriate classes within the top level class. */ |
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68 FULL |
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69 }; |
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70 |
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71 // ---------- Test cases, invoked reflectively via run. ---------- |
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72 |
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73 @Test |
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74 void simpleTest(RunKind rk, GenKind gk) throws Exception { |
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75 List<File> files = new ArrayList<File>(); |
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76 files.add(createFile("p/C.java", |
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77 "class C { native void m(); }")); |
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78 |
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79 Set<String> expect = createSet("C.h"); |
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80 |
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81 test(rk, gk, files, expect); |
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82 } |
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83 |
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84 @Test |
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85 void nestedClassTest(RunKind rk, GenKind gk) throws Exception { |
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86 List<File> files = new ArrayList<File>(); |
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87 files.add(createFile("p/C.java", |
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88 "class C { static class Inner { native void m(); } }")); |
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89 |
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90 Set<String> expect = createSet("C_Inner.h"); |
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91 if (gk == GenKind.FULL) expect.add("C.h"); |
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92 |
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93 test(rk, gk, files, expect); |
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94 } |
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95 |
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96 @Test |
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97 void localClassTest(RunKind rk, GenKind gk) throws Exception { |
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98 List<File> files = new ArrayList<File>(); |
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99 files.add(createFile("p/C.java", |
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100 "class C { native void m(); void m2() { class Local { } } }")); |
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101 |
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102 Set<String> expect = createSet("C.h"); |
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103 |
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104 test(rk, gk, files, expect); |
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105 } |
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106 |
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107 @Test |
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108 void syntheticClassTest(RunKind rk, GenKind gk) throws Exception { |
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109 List<File> files = new ArrayList<File>(); |
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110 files.add(createFile("p/C.java", |
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111 "class C {\n" |
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112 + " private C() { }\n" |
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113 + " class Inner extends C { native void m(); }\n" |
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114 + "}")); |
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115 |
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116 Set<String> expect = createSet("C_Inner.h"); |
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117 if (gk == GenKind.FULL) expect.add("C.h"); |
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118 |
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119 test(rk, gk, files, expect); |
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120 |
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121 // double check the synthetic class was generated |
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122 checkEqual("generatedClasses", |
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123 createSet("C.class", "C$1.class", "C$Inner.class"), |
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124 createSet(classesDir.list())); |
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125 } |
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126 |
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127 @Test |
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128 void annoTest(RunKind rk, GenKind gk) throws Exception { |
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129 List<File> files = new ArrayList<File>(); |
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130 files.add(createFile("p/C.java", |
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131 "class C { @java.lang.annotation.Native public static final int i = 1907; }")); |
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132 |
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133 Set<String> expect = createSet("C.h"); |
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134 |
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135 test(rk, gk, files, expect); |
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136 } |
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137 |
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138 @Test |
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139 void annoNestedClassTest(RunKind rk, GenKind gk) throws Exception { |
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140 List<File> files = new ArrayList<File>(); |
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141 files.add(createFile("p/C.java", |
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142 "class C { class Inner { @java.lang.annotation.Native public static final int i = 1907; } }")); |
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143 |
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144 Set<String> expect = createSet("C_Inner.h"); |
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145 if (gk == GenKind.FULL) expect.add("C.h"); |
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146 |
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147 test(rk, gk, files, expect); |
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148 } |
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149 |
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150 /** |
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151 * The worker method for each test case. |
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152 * Compile the files and verify that exactly the expected set of header files |
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153 * is generated. |
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154 */ |
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155 void test(RunKind rk, GenKind gk, List<File> files, Set<String> expect) throws Exception { |
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156 List<String> args = new ArrayList<String>(); |
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157 if (gk == GenKind.FULL) |
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158 args.add("-XDjavah:full"); |
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159 |
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160 switch (rk) { |
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161 case CMD: |
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162 args.add("-d"); |
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163 args.add(classesDir.getPath()); |
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164 args.add("-h"); |
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165 args.add(headersDir.getPath()); |
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166 for (File f: files) |
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167 args.add(f.getPath()); |
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168 int rc = com.sun.tools.javac.Main.compile(args.toArray(new String[args.size()])); |
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169 if (rc != 0) |
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170 throw new Exception("compilation failed, rc=" + rc); |
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171 break; |
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172 |
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173 case API: |
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174 fm.setLocation(StandardLocation.SOURCE_PATH, Arrays.asList(srcDir)); |
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175 fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(classesDir)); |
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176 fm.setLocation(StandardLocation.NATIVE_HEADER_OUTPUT, Arrays.asList(headersDir)); |
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177 JavacTask task = javac.getTask(null, fm, null, args, null, |
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178 fm.getJavaFileObjectsFromFiles(files)); |
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179 if (!task.call()) |
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180 throw new Exception("compilation failed"); |
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181 break; |
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182 } |
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183 |
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184 Set<String> found = createSet(headersDir.list()); |
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185 checkEqual("header files", expect, found); |
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186 } |
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187 |
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188 /** Marker annotation for test cases. */ |
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189 @Retention(RetentionPolicy.RUNTIME) |
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190 @interface Test { } |
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191 |
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192 /** Combo test to run all test cases in all modes. */ |
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193 void run() throws Exception { |
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194 javac = JavacTool.create(); |
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195 fm = javac.getStandardFileManager(null, null, null); |
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196 |
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197 for (RunKind rk: RunKind.values()) { |
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198 for (GenKind gk: GenKind.values()) { |
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199 for (Method m: getClass().getDeclaredMethods()) { |
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200 Annotation a = m.getAnnotation(Test.class); |
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201 if (a != null) { |
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202 init(rk, gk, m.getName()); |
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203 try { |
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204 m.invoke(this, new Object[] { rk, gk }); |
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205 } catch (InvocationTargetException e) { |
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206 Throwable cause = e.getCause(); |
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207 throw (cause instanceof Exception) ? ((Exception) cause) : e; |
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208 } |
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209 System.err.println(); |
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210 } |
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211 } |
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212 } |
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213 } |
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214 System.err.println(testCount + " tests" + ((errorCount == 0) ? "" : ", " + errorCount + " errors")); |
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215 if (errorCount > 0) |
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216 throw new Exception(errorCount + " errors found"); |
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217 } |
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218 |
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219 /** |
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220 * Init directories for a test case. |
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221 */ |
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222 void init(RunKind rk, GenKind gk, String name) throws IOException { |
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223 System.err.println("Test " + rk + " " + gk + " " + name); |
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224 testCount++; |
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225 |
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226 testDir = new File(rk.toString().toLowerCase() + "_" + gk.toString().toLowerCase() + "-" + name); |
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227 srcDir = new File(testDir, "src"); |
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228 srcDir.mkdirs(); |
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229 classesDir = new File(testDir, "classes"); |
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230 classesDir.mkdirs(); |
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231 headersDir = new File(testDir, "headers"); |
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232 headersDir.mkdirs(); |
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233 } |
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234 |
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235 /** Create a source file with given body text. */ |
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236 File createFile(String path, final String body) throws IOException { |
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237 File f = new File(srcDir, path); |
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238 f.getParentFile().mkdirs(); |
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239 try (FileWriter out = new FileWriter(f)) { |
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240 out.write(body); |
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241 } |
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242 return f; |
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243 } |
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244 |
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245 /** Convenience method to create a set of items. */ |
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246 <T> Set<T> createSet(T... items) { |
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247 return new HashSet<T>(Arrays.asList(items)); |
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248 } |
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249 |
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250 /** Convenience method to check two values are equal, and report an error if not. */ |
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251 <T> void checkEqual(String label, T expect, T found) { |
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252 if ((found == null) ? (expect == null) : found.equals(expect)) |
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253 return; |
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254 System.err.println("Error: mismatch"); |
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255 System.err.println(" expected: " + expect); |
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256 System.err.println(" found: " + found); |
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257 errorCount++; |
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258 } |
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259 |
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260 // Shared across API test cases |
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261 JavacTool javac; |
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262 StandardJavaFileManager fm; |
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263 |
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264 // Directories set up by init |
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265 File testDir; |
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266 File srcDir; |
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267 File classesDir; |
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268 File headersDir; |
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269 |
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270 // Statistics |
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271 int testCount; |
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272 int errorCount; |
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273 } |
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274 |