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Java > Open Source Codes > edu > rice > cs > drjava > model > definitions > indent > QuestionStartingNewStmtTest


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33
34 package edu.rice.cs.drjava.model.definitions.indent;
35
36 import javax.swing.text.BadLocationException JavaDoc;
37
38 /**
39  * Tests the question rule which determines if the current line
40  * is starting a new statement.
41  *
42  * @version $Id: QuestionStartingNewStmtTest.java 3901 2006-06-30 05:28:11Z rcartwright $
43  */
44 public final class QuestionStartingNewStmtTest extends IndentRulesTestCase {
45
46   /**
47    * Ensures that the current line is the first line of a statement.
48    * This is done by testing if the previous character is one of
49    * the following: docstart, ';', '{', '}'
50    * These characters are here-on refered to as 'end-characters'.
51    */
52   public void testStartOfStmtCheckForEndCharacters() throws BadLocationException JavaDoc {
53     IndentRuleQuestion rule = new QuestionStartingNewStmt(null, null);
54
55     // Starting new stmt, prev char docstart
56 _setDocText("import java.util.Vector;\n");
57     _doc.setCurrentLocation(4);
58     assertTrue("starting new stmt, prev char docstart",
59         rule.applyRule(_doc, Indenter.OTHER));
60
61     // Starting new stmt, prev char ';'
62 _setDocText("foo();\nbar();\n");
63     _doc.setCurrentLocation(7);
64     assertTrue("starting new stmt, prev char ';'",
65         rule.applyRule(_doc, Indenter.OTHER));
66     
67     // Starting new stmt, prev char '{'
68 _setDocText("public void foo() {\nfoo()\n");
69     _doc.setCurrentLocation(20);
70     assertTrue("starting new stmt, prev char '{'",
71         rule.applyRule(_doc, Indenter.OTHER));
72
73     // Starting new stmt, prev char '}'
74 _setDocText("x();\n}\nfoo()\n");
75     _doc.setCurrentLocation(7);
76     assertTrue("starting new stmt, prev char '}'",
77         rule.applyRule(_doc, Indenter.OTHER));
78   }
79
80   /**
81    * Ensures that the current line is the first line of a statement.
82    * Tests that whitespace, single-line and multi-line comments
83    * are ignored when searching for the end-characters.
84    */
85   public void testStartOfStmtIgnoreWhiteSpaceAndCommentsInBetween() throws BadLocationException JavaDoc {
86     IndentRuleQuestion rule = new QuestionStartingNewStmt(null, null);
87   
88     // Starting new stmt, ignore whitespace in between
89 _setDocText("bar();\n\t \n foo();");
90     _doc.setCurrentLocation(12);
91     assertTrue("starting new stmt, ignore whitespace in between",
92         rule.applyRule(_doc, Indenter.OTHER));
93
94     // Starting new stmt, ignore single line comments
95 _setDocText("} // note:\n//please ignore me\nfoo();\n");
96     _doc.setCurrentLocation(30);
97     assertTrue("starting new stmt, ignore single line comments",
98         rule.applyRule(_doc, Indenter.OTHER));
99
100     // Starting new stmt, ignore multi-line comments
101 _setDocText("{ /* in a comment\nstill in a comment\ndone */\nfoo();");
102     _doc.setCurrentLocation(45);
103     assertTrue("starting new stmt, ignore multi-line comments",
104         rule.applyRule(_doc, Indenter.OTHER));
105
106     _setDocText("bar();\n/* blah */ foo();\n");
107     _doc.setCurrentLocation(18);
108     assertTrue("starting new stmt, ignore multi-line comment on same " +
109         "line as new stmt",
110         rule.applyRule(_doc, Indenter.OTHER));
111
112     _setDocText("method foo() {\n" +
113   "}\n" +
114   " ");
115     _doc.setCurrentLocation(17);
116     assertTrue("Blank line with no non-WS after",
117         rule.applyRule(_doc, Indenter.OTHER));
118
119     _setDocText("method foo() {\n" +
120   "}\n" +
121   " \n" +
122   "// comment");
123     _doc.setCurrentLocation(17);
124     assertTrue("Blank line with comments after, but no non-WS",
125         rule.applyRule(_doc, Indenter.OTHER));
126   }
127
128   /**
129    * Ensures that the current line is the first line of a statement.
130    * Tests that end characters in single-line comments, multi-line
131    * comments or quotes are ignored.
132    */
133   public void testNotStartOfStmtDueToEndCharactersInCommentsOrQuotes() throws BadLocationException JavaDoc {
134     IndentRuleQuestion rule = new QuestionStartingNewStmt(null, null);
135
136     // Not starting new stmt, ignore end chars in quotes
137 _setDocText("x = bar + \";\" + \"}\" + \"{\"\n+ foo;\n");
138     _doc.setCurrentLocation(26);
139     assertTrue("not starting new stmt, ignore end chars in quotes",
140         !rule.applyRule(_doc, Indenter.OTHER));
141
142     // Not starting new stmt, ignore end chars in single-line comments
143 _setDocText("x = bar.//;{}\nfoo();\n");
144     _doc.setCurrentLocation(14);
145     assertTrue("not starting new stmt, ignore end chars in single-line comments",
146         !rule.applyRule(_doc, Indenter.OTHER));
147
148     // Not starting new stmt, ignore end chars in multi-line comments
149 _setDocText("x = bar./*;\n{\n}\n*/\nfoo();\n");
150     _doc.setCurrentLocation(19);
151     assertTrue("not starting new stmt, ignore end chars in multi-line comments",
152         !rule.applyRule(_doc, Indenter.OTHER));
153   }
154 }
155
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