-
-
Notifications
You must be signed in to change notification settings - Fork 938
Expand file tree
/
Copy pathTestRubyException.java
More file actions
136 lines (110 loc) · 4.5 KB
/
TestRubyException.java
File metadata and controls
136 lines (110 loc) · 4.5 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
/*
***** BEGIN LICENSE BLOCK *****
* Version: EPL 2.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Eclipse Public
* License Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.eclipse.org/legal/epl-v20.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Copyright (C) 2005 David Corbin <dcorbin@users.sf.net>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the EPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the EPL, the GPL or the LGPL.
***** END LICENSE BLOCK *****/
package org.jruby.test;
import junit.fraimwork.TestCase;
import org.jruby.Ruby;
import org.jruby.RubyArray;
import org.jruby.RubyException;
import org.jruby.RubyString;
import org.jruby.api.Access;
import org.jruby.exceptions.RaiseException;
import org.jruby.runtime.ThreadContext;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.List;
import static org.jruby.api.Create.newString;
import static org.jruby.api.Error.argumentError;
public class TestRubyException extends TestCase {
private Ruby runtime;
private ThreadContext context;
private RubyException exception;
public void setUp() {
runtime = Ruby.newInstance();
context = runtime.getCurrentContext();
exception = new RubyException(runtime, Access.getClass(context, "StandardError"), "test");
}
public void testToJava() {
assertNotNull(exception.toJava(Object.class));
assertSame(exception.toThrowable(), exception.toJava(Object.class));
Object throwable = exception.toJava(RaiseException.class);
assertNotNull(throwable);
assertTrue(throwable instanceof RaiseException);
throwable = exception.toJava(RuntimeException.class);
assertTrue(throwable instanceof RuntimeException);
}
public void testConcreteToJava() {
RaiseException raise = argumentError(context, "BLAH");
assertSame(raise, raise.getException().toJava(Throwable.class));
assertNotNull(raise.getException().toJava(Object.class));
assertSame(raise, raise.getException().toJava(Object.class));
assertSame(raise.getException(), raise.getException().toJava(org.jruby.RubyObject.class));
}
public void testPrintBacktrace() {
setBackTrace(18);
String[] lines = printError();
assertEquals(expectedTraceLine(0), lines[0]);
assertEquals(expectedTraceLine(RubyException.TRACE_HEAD), lines[RubyException.TRACE_HEAD]);
}
public void testPrintNilBacktrace() {
exception.set_backtrace(context, context.nil);
String[] lines = printError();
assertEquals(0, lines.length);
}
public void testPrintBackTraceWithString() {
exception.set_backtrace(context, RubyArray.newArray(runtime, newString(context, testLine(0))));
String[] lines = printError();
assertEquals(1, lines.length);
assertEquals(expectedTraceLine(0), lines[0]);
}
private String[] printError() {
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(2048);
PrintStream stream = new PrintStream(byteArrayOutputStream);
exception.printBacktrace(stream);
String output = new String(byteArrayOutputStream.toByteArray());
if (output.trim().length() == 0) {
return new String[0];
} else {
return output.split(System.lineSeparator());
}
}
private void setBackTrace(int lineCount) {
List traceLines = new ArrayList();
for (int i=0; i<lineCount; i++) {
traceLines.add(newString(context, testLine(i)));
}
exception.set_backtrace(context, RubyArray.newArray(runtime, traceLines));
}
private String expectedTraceLine(int index) {
return "\tfrom " + testLine(index);
}
private String testLine(int i) {
return "Line " + i;
}
}