QuestionPrevLineStartsWithTest


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33  
34  package edu.rice.cs.drjava.model.definitions.indent;
35  
36  import javax.swing.text.BadLocationException  ;
37  
38  /**
39   * Tests the indention rule which detects whether the immediately previous line
40   * starts with a particular string.
41   * @version $Id: QuestionPrevLineStartsWithTest.java 3901 2006-06-30 05:28:11Z rcartwright $
42   */
43  public final class QuestionPrevLineStartsWithTest extends IndentRulesTestCase {
44  
45    /** Tests not having the prefix in the text. */
46    public void testNoPrefix() throws BadLocationException   {
47      IndentRuleQuestion rule = new QuestionPrevLineStartsWith("{", null, null);
48      
49      // Open brace
50      _setDocText("}\nfoo();\n}\n");
51      assertTrue("line after close brace (no open brace)", !rule.applyRule(_doc, 2, Indenter.OTHER));
52      assertTrue("line after text (no open brace)", !rule.applyRule(_doc, 9, Indenter.OTHER));
53      assertTrue("line after text (no open brace)", !rule.applyRule(_doc, 10, Indenter.OTHER));
54      
55      // Star
56      rule = new QuestionPrevLineStartsWith("*", null, null);
57      _setDocText("{\nfoo();");
58      assertTrue("no star", !rule.applyRule(_doc, 6, Indenter.OTHER));
59      
60    }
61    
62    /** Tests hitting start of document. */
63    public void testStartOfDocument() throws BadLocationException   {
64      IndentRuleQuestion rule = new QuestionPrevLineStartsWith("{", null, null);
65      
66      // Hits docstart
67      _setDocText("\nfoo();");
68      assertTrue("first line", !rule.applyRule(_doc, 0, Indenter.OTHER));
69      assertTrue("second line", !rule.applyRule(_doc, 2, Indenter.OTHER));
70    }
71    
72    /** Tests prefix on current line. */
73    public void testPrefixOnCurrLine() throws BadLocationException   {
74      IndentRuleQuestion rule = new QuestionPrevLineStartsWith("}", null, null);
75      
76      // Prefix at start of current line
77      _setDocText("} foo();");
78      assertTrue("before brace", !rule.applyRule(_doc, 0, Indenter.OTHER));
79      assertTrue("after brace", !rule.applyRule(_doc, 2, Indenter.OTHER));
80      
81      // Prefix in middle of current line
82      _setDocText("foo();\n bar(); } foo();");
83      assertTrue("before brace", !rule.applyRule(_doc, 7, Indenter.OTHER));
84      assertTrue("after brace", !rule.applyRule(_doc, 18, Indenter.OTHER));
85    }
86    
87    /** Tests having prev line start with prefix, with text following */
88    public void testStartsWithPrefixWithText() throws BadLocationException   {
89      IndentRuleQuestion rule = new QuestionPrevLineStartsWith("}", null, null);
90          
91      // Prefix plus text (no space)
92      _setDocText("}bar();\nfoo();\nbar();");
93      assertTrue("line of brace (no space)", !rule.applyRule(_doc, 2, Indenter.OTHER));
94      assertTrue("line after brace (no space)", rule.applyRule(_doc, 8, Indenter.OTHER));
95      assertTrue("two lines after brace (no space)", !rule.applyRule(_doc, 16, Indenter.OTHER));
96      
97      // Prefix plus text (with space)
98      rule = new QuestionPrevLineStartsWith("*", null, null);
99      _setDocText("foo\n * comment\nbar");
100     assertTrue("just before star (with space)", !rule.applyRule(_doc, 4, Indenter.OTHER));
101     assertTrue("just after star (with space)", !rule.applyRule(_doc, 6, Indenter.OTHER));
102     assertTrue("line after star (with space)", rule.applyRule(_doc, 16, Indenter.OTHER));
103   }
104   
105   /** Tests having prev line start with prefix, with no text following */
106   public void testStartsWithPrefixNoText() throws BadLocationException   {
107     IndentRuleQuestion rule = new QuestionPrevLineStartsWith("*", null, null);
108     
109     // Prefix plus no text (no space)
110     _setDocText("foo();\n*\nbar();\n}");
111     assertTrue("line of star (no space)", !rule.applyRule(_doc, 8, Indenter.OTHER));
112     assertTrue("line after star (no space)", rule.applyRule(_doc, 10, Indenter.OTHER));
113     assertTrue("two lines after star (no space)", !rule.applyRule(_doc, 16, Indenter.OTHER));
114     
115     // Prefix plus no text (with space)
116     _setDocText("foo();\n   * \nbar();\n{");
117     assertTrue("line of star (with space)", !rule.applyRule(_doc, 7, Indenter.OTHER));
118     assertTrue("just after star (with space)", !rule.applyRule(_doc, 11, Indenter.OTHER));
119     assertTrue("line after star (with space)", rule.applyRule(_doc, 13, Indenter.OTHER));
120   }
121   
122   /** Tests having a multiple character prefix. */
123   public void testMultipleCharPrefix() throws BadLocationException   {
124     IndentRuleQuestion rule = new QuestionPrevLineStartsWith("* ", null, null);
125     
126     // Multi-char prefix
127     _setDocText("*\n *\n * \n * foo\nbar");
128     assertTrue("star", !rule.applyRule(_doc, 2, Indenter.OTHER));
129     assertTrue("space star", !rule.applyRule(_doc, 5, Indenter.OTHER));
130     assertTrue("space star space", rule.applyRule(_doc, 11, Indenter.OTHER));
131     assertTrue("space star space text", rule.applyRule(_doc, 16, Indenter.OTHER));
132   }
133   
134   /** Tests having a commented prefix. */
135   public void testCommentedPrefix() throws BadLocationException   {
136     IndentRuleQuestion rule = new QuestionPrevLineStartsWith("*", null, null);
137     
138     // Star in comment
139     _setDocText("/**\n* \ncomment\n*/");
140     assertTrue("just before star", !rule.applyRule(_doc, 4, Indenter.OTHER));
141     assertTrue("just after star", !rule.applyRule(_doc, 6, Indenter.OTHER));
142     assertTrue("line after star", rule.applyRule(_doc, 7, Indenter.OTHER));
143     assertTrue("line after star", !rule.applyRule(_doc, 15, Indenter.OTHER));
144   }
145   
146   /** Tests a prefix that begins a comment. */
147   public void testCommentPrefix() throws BadLocationException   {
148     IndentRuleQuestion rule = new QuestionPrevLineStartsWith("/**", null, null);
149     
150     // Star in comment
151     _setDocText("/**\n* \ncomment\n*/");
152     assertTrue("just before star", rule.applyRule(_doc, 4, Indenter.OTHER));
153     assertTrue("just after star", rule.applyRule(_doc, 6, Indenter.OTHER));
154     assertTrue("line after star", !rule.applyRule(_doc, 7, Indenter.OTHER));
155     assertTrue("line after star", !rule.applyRule(_doc, 15, Indenter.OTHER));
156   }
157   
158   /** Tests having text on a line before the prefix. */
159   public void testDoesNotStartWithPrefix() throws BadLocationException   {
160     IndentRuleQuestion rule = new QuestionPrevLineStartsWith("*", null, null);
161     
162     // Star in text, not starting line
163     _setDocText("foo(); *\nbar();\n");
164     assertTrue("line after star", !rule.applyRule(_doc, 10, Indenter.OTHER));
165   }
166 
167 
168 }
169
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