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31 package org.jruby.test;
32
33 import java.io.ByteArrayOutputStream  ;
34 import java.io.PrintStream ;
35
36 import junit.framework.TestCase;
37
38 import org.jruby.Main;
39 import org.jruby.util.CommandlineParser;
40
41 public class TestCommandlineParser extends TestCase {
42 private PrintStream out;
43 private PrintStream err;
44
45 public void setUp() {
46 out = new PrintStream (new ByteArrayOutputStream ());
47 err = new PrintStream (new ByteArrayOutputStream ());
48 }
49 public void testParsing() {
50 CommandlineParser c = new CommandlineParser(new Main(System.in, out, err), new String [] { "-e", "hello", "-e", "world" });
51 assertEquals("hello\nworld\n", c.inlineScript());
52 assertNull(c.getScriptFileName());
53 assertEquals("-e", c.displayedFileName());
54
55 c = new CommandlineParser(new Main(System.in, out, err), new String [] { "--version" });
56 assertTrue(c.isShowVersion());
57
58 c = new CommandlineParser(new Main(System.in, out, err), new String [] { "-n", "myfile.rb" });
59 assertTrue(c.isAssumeLoop());
60 assertEquals("myfile.rb", c.getScriptFileName());
61 assertEquals("myfile.rb", c.displayedFileName());
62
63 c = new CommandlineParser(new Main(System.in, out, err), new String [0]);
64 assertEquals("-", c.displayedFileName());
65 }
66
67
68
69 public void testParsingWithDashDash() {
70 class TestableCommandlineParser extends CommandlineParser {
71
72 public TestableCommandlineParser(String [] arguments) {
73 super(new Main(System.in, out, err), arguments);
74 }
75 }
76 CommandlineParser c = new TestableCommandlineParser(new String [] { "-I", "someLoadPath", "--", "simple.rb", "-v", "--version" });
77 assertEquals("someLoadPath", c.loadPaths().get(0));
78 assertEquals("simple.rb",c.getScriptFileName());
79 assertEquals("simple.rb", c.displayedFileName());
80 assertTrue("Should not be verbose. The -v flag should be a parameter to the script, not the jruby interpreter", !c.isVerbose());
81 assertEquals("Script should have two parameters",2,c.getScriptArguments().length);
82 assertEquals("-v",c.getScriptArguments()[0]);
83 assertEquals("--version",c.getScriptArguments()[1]);
84 }
85
86 public void testPrintVersionDoesNotRunInterpreter() {
87 String [] args = new String [] { "-v" };
88 CommandlineParser parser = new CommandlineParser(new Main(System.in, out, err), args);
89 assertTrue(parser.isShowVersion());
90 assertFalse(parser.isShouldRunInterpreter());
91
92 args = new String [] { "--version" };
93 parser = new CommandlineParser(new Main(System.in, out, err), args);
94 assertTrue(parser.isShowVersion());
95 assertFalse(parser.isShouldRunInterpreter());
96 }
97
98 public void testHelpDoesNotRunIntepreter() {
99 String [] args = new String [] { "-h" };
100 CommandlineParser parser = new CommandlineParser(new Main(System.in, out, err), args);
101 assertFalse(parser.isShouldRunInterpreter());
102
103 args = new String [] { "--help" };
104 parser = new CommandlineParser(new Main(System.in, out, err), args);
105 assertFalse(parser.isShouldRunInterpreter());
106 }
107
108 public void testCommandTakesOneArgument() {
109 String [] args = new String [] { "--command", "gem" };
110 CommandlineParser parser = new CommandlineParser(new Main(System.in, out, err), args);
111 assertEquals(1, parser.requiredLibraries().size());
112 assertEquals("jruby/commands", parser.requiredLibraries().get(0));
113 assertEquals("JRuby::Commands.gem\n", parser.inlineScript());
114 }
115
116 public void testCommandAllowedOnlyOnceAndRemainderAreScriptArgs() {
117 String [] args = new String [] { "--command", "gem", "--command", "irb" };
118 CommandlineParser parser = new CommandlineParser(new Main(System.in, out, err), args);
119 assertEquals(2, parser.getScriptArguments().length);
120 assertEquals("--command", parser.getScriptArguments()[0]);
121 assertEquals("irb", parser.getScriptArguments()[1]);
122 }
123 }
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