1 /*
2 * Copyright (c) 2018, 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
24 /*
25 * @test
26 * @summary Unit tests for Raw String Literal language changes
27 * @library /tools/lib
28 * @modules jdk.compiler/com.sun.tools.javac.api
29 * jdk.compiler/com.sun.tools.javac.main
30 * @build toolbox.ToolBox toolbox.JavacTask
31 * @run main RawStringLiteralLangAPI
32 */
33
34 import toolbox.JavacTask;
35 import toolbox.JavaTask;
36 import toolbox.Task;
37 import toolbox.ToolBox;
38
39 public class RawStringLiteralLangAPI {
40 private static ToolBox TOOLBOX = new ToolBox();
41
42 public static void main(String... args) {
43 test1();
44 test2();
45 test3();
46 test4();
47 }
48
49 /*
50 * Check that correct/incorrect syntax is properly detected
51 */
52 enum Test {
53 t0(false, "`*`*`"),
54 t1(false, "`\\u2022`\\u2022`"),
55 t2(false, "``*`*`"),
56 t3(false, "``\\u2022`\\u2022`"),
57 t4(false, "`*`*``"),
58 t5(false, "`\\u2022`\\u2022``"),
59 t6(true, "``*`*``"),
60 t7(true, "``\\u2022`\\u2022``"),
61 t8(true, "`*``*`"),
62 t9(true, "`\\u2022``\\u2022`"),
63 ;
64
65 Test(boolean pass, String string) {
66 this.pass = pass;
67 this.string = string;
68 }
69
70 boolean pass;
71 String string;
72 }
73 static void test1() {
74 for (Test t : Test.values()) {
75 String code =
76 "public class RawStringLiteralTest {\n" +
77 " public static void main(String... args) {\n" +
78 " String xxx = " + t.string + ";\n" +
79 " }\n" +
80 "}\n";
81 if (t.pass) {
82 compPass(code);
83 } else {
84 compFail(code);
85 }
86 }
87 }
88
89 /*
90 * Check that misuse of \u0060 is properly detected
91 */
92 static void test2() {
93 compFail("public class BadDelimiter {\n" +
94 " public static void main(String... args) {\n" +
95 " String xxx = \\u0060`abc`;\n" +
96 " }\n" +
97 "}\n");
98 }
99
100 /*
101 * Check edge cases of raw string literal as last token
102 */
103 static void test3() {
104 compFail("public class RawStringLiteralTest {\n" +
105 " public static void main(String... args) {\n" +
106 " String xxx = `abc`");
107 compFail("public class RawStringLiteralTest {\n" +
108 " public static void main(String... args) {\n" +
109 " String xxx = `abc");
110 compFail("public class RawStringLiteralTest {\n" +
111 " public static void main(String... args) {\n" +
112 " String xxx = `abc\u0000");
113 }
114
115 /*
116 * Check line terminator translation
117 */
118 static void test4() {
119 String[] terminators = new String[] { "\n", "\r\n", "\r" };
120 for (String terminator : terminators) {
121 String code = "public class LineTerminatorTest {" + terminator +
122 " public static void main(String... args) {" + terminator +
123 " String s =" + terminator +
124 "`" + terminator +
125 "abc" + terminator +
126 "`;" + terminator +
127 " System.out.println(s.equals(\"\\nabc\\n\"));" + terminator +
128 " }" + terminator +
129 "}" + terminator;
130 new JavacTask(TOOLBOX)
131 .sources(code)
132 .classpath(".")
133 .options("--enable-preview", "-source", "13")
134 .run();
135 String output = new JavaTask(TOOLBOX)
136 .vmOptions("--enable-preview")
137 .classpath(".")
138 .classArgs("LineTerminatorTest")
139 .run()
140 .writeAll()
141 .getOutput(Task.OutputKind.STDOUT);
142
143 if (!output.contains("true")) {
144 throw new RuntimeException("Error detected");
145 }
146 }
147 }
148
149 /*
150 * Test source for successful compile.
151 */
152 static void compPass(String source) {
153 String output = new JavacTask(TOOLBOX)
154 .sources(source)
155 .classpath(".")
156 .options("--enable-preview", "-source", "13", "-encoding", "utf8")
157 .run()
158 .writeAll()
159 .getOutput(Task.OutputKind.DIRECT);
160
161 if (output.contains("compiler.err")) {
162 throw new RuntimeException("Error detected");
163 }
164 }
165
166 /*
167 * Test source for unsuccessful compile and specific error.
168 */
169 static void compFail(String source) {
170 String errors = new JavacTask(TOOLBOX)
171 .sources(source)
172 .classpath(".")
173 .options("-XDrawDiagnostics", "--enable-preview", "-source", "13", "-encoding", "utf8")
174 .run(Task.Expect.FAIL)
175 .writeAll()
176 .getOutput(Task.OutputKind.DIRECT);
177
178 if (!errors.contains("compiler.err")) {
179 throw new RuntimeException("No error detected");
180 }
181 }
182 }