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20 package com.puppycrawl.tools.checkstyle.checks.coding;
21
22 import static com.google.common.truth.Truth.assertWithMessage;
23 import static com.puppycrawl.tools.checkstyle.checks.coding.OneStatementPerLineCheck.MSG_KEY;
24
25 import java.util.List;
26
27 import org.junit.jupiter.api.Test;
28
29 import com.puppycrawl.tools.checkstyle.AbstractModuleTestSupport;
30 import com.puppycrawl.tools.checkstyle.DefaultConfiguration;
31 import com.puppycrawl.tools.checkstyle.utils.CommonUtil;
32
33 public class OneStatementPerLineCheckTest extends AbstractModuleTestSupport {
34
35 @Override
36 public String getPackageLocation() {
37 return "com/puppycrawl/tools/checkstyle/checks/coding/onestatementperline";
38 }
39
40 @Test
41 public void testMultiCaseSmallTalkStyle() throws Exception {
42 final String[] expected = {
43 "14:59: " + getCheckMessage(MSG_KEY),
44 "88:21: " + getCheckMessage(MSG_KEY),
45 };
46 verifyWithInlineConfigParser(
47 getPath("InputOneStatementPerLineSingleLineSmallTalkStyle.java"),
48 expected);
49 }
50
51 @Test
52 public void testMultiCaseLoops() throws Exception {
53 final String[] expected = {
54 "27:18: " + getCheckMessage(MSG_KEY),
55 "53:17: " + getCheckMessage(MSG_KEY),
56 "65:25: " + getCheckMessage(MSG_KEY),
57 "85:23: " + getCheckMessage(MSG_KEY),
58 "89:63: " + getCheckMessage(MSG_KEY),
59 };
60 verifyWithInlineConfigParser(
61 getPath("InputOneStatementPerLineSingleLineInLoops.java"),
62 expected);
63 }
64
65 @Test
66 public void testMultiCaseDeclarations() throws Exception {
67 final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
68 verifyWithInlineConfigParser(
69 getPath("InputOneStatementPerLineSingleLineForDeclarations.java"),
70 expected);
71 }
72
73 @Test
74 public void testTokensNotNull() {
75 final OneStatementPerLineCheck check = new OneStatementPerLineCheck();
76 assertWithMessage("Acceptable tokens should not be null")
77 .that(check.getAcceptableTokens())
78 .isNotNull();
79 assertWithMessage("Default tokens should not be null")
80 .that(check.getDefaultTokens())
81 .isNotNull();
82 assertWithMessage("Required tokens should not be null")
83 .that(check.getRequiredTokens())
84 .isNotNull();
85 }
86
87 @Test
88 public void testDeclarationsWithMultilineStatements() throws Exception {
89 final String[] expected = {
90 "49:21: " + getCheckMessage(MSG_KEY),
91 "66:17: " + getCheckMessage(MSG_KEY),
92 "74:17: " + getCheckMessage(MSG_KEY),
93 "86:10: " + getCheckMessage(MSG_KEY),
94 "95:28: " + getCheckMessage(MSG_KEY),
95 };
96 verifyWithInlineConfigParser(
97 getPath("InputOneStatementPerLineMultilineForDeclarations.java"),
98 expected);
99 }
100
101 @Test
102 public void testLoopsAndTryWithResourceWithMultilineStatements() throws Exception {
103 final String[] expected = {
104 "53:39: " + getCheckMessage(MSG_KEY),
105 "87:44: " + getCheckMessage(MSG_KEY),
106 "99:45: " + getCheckMessage(MSG_KEY),
107 };
108 verifyWithInlineConfigParser(
109 getPath("InputOneStatementPerLineMultilineInLoopsAndTryWithResources.java"),
110 expected);
111 }
112
113 @Test
114 public void oneStatementNonCompilableInputTest() throws Exception {
115 final String[] expected = {
116 "39:4: " + getCheckMessage(MSG_KEY),
117 "46:54: " + getCheckMessage(MSG_KEY),
118 "48:54: " + getCheckMessage(MSG_KEY),
119 "48:70: " + getCheckMessage(MSG_KEY),
120 "54:46: " + getCheckMessage(MSG_KEY),
121 "60:81: " + getCheckMessage(MSG_KEY),
122 };
123
124 verifyWithInlineConfigParser(
125 getNonCompilablePath("InputOneStatementPerLine.java"), expected);
126 }
127
128 @Test
129 public void testResourceReferenceVariableIgnored() throws Exception {
130 final String[] expected = {
131 "33:42: " + getCheckMessage(MSG_KEY),
132 "38:43: " + getCheckMessage(MSG_KEY),
133 "45:46: " + getCheckMessage(MSG_KEY),
134 "50:46: " + getCheckMessage(MSG_KEY),
135 };
136
137 verifyWithInlineConfigParser(
138 getPath("InputOneStatementPerLineTryWithResources.java"),
139 expected);
140 }
141
142 @Test
143 public void testResourcesIgnored() throws Exception {
144 final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
145 verifyWithInlineConfigParser(
146 getPath("InputOneStatementPerLineTryWithResourcesIgnore.java"),
147 expected);
148 }
149
150 @Test
151 public void testAllTheCodeInSingleLine() throws Exception {
152 final DefaultConfiguration checkConfig =
153 createModuleConfig(OneStatementPerLineCheck.class);
154
155 final String[] expected = {
156 "5:102: " + getCheckMessage(MSG_KEY),
157 "5:131: " + getCheckMessage(MSG_KEY),
158 "5:165: " + getCheckMessage(MSG_KEY),
159 "5:230: " + getCheckMessage(MSG_KEY),
160 "5:402: " + getCheckMessage(MSG_KEY),
161 "5:414: " + getCheckMessage(MSG_KEY),
162 };
163
164 verify(checkConfig, getPath("InputOneStatementPerLine.java"),
165 expected);
166 }
167
168 @Test
169 public void testStateIsClearedOnBeginTreeForLastStatementEnd() throws Exception {
170 final String inputWithWarnings = getPath("InputOneStatementPerLineBeginTree1.java");
171 final String inputWithoutWarnings = getPath("InputOneStatementPerLineBeginTree2.java");
172 final List<String> expectedFirstInput = List.of(
173 "7:96: " + getCheckMessage(MSG_KEY)
174 );
175 final List<String> expectedSecondInput = List.of(CommonUtil.EMPTY_STRING_ARRAY);
176 verifyWithInlineConfigParser(inputWithWarnings,
177 inputWithoutWarnings, expectedFirstInput, expectedSecondInput);
178 }
179
180 @Test
181 public void testStateIsClearedOnBeginTreeForLastVariableStatement() throws Exception {
182 final String file1 = getPath(
183 "InputOneStatementPerLineBeginTreeLastVariableResourcesStatementEnd1.java");
184 final String file2 = getPath(
185 "InputOneStatementPerLineBeginTreeLastVariableResourcesStatementEnd2.java");
186 final List<String> expectedFirstInput = List.of(
187 "15:59: " + getCheckMessage(MSG_KEY)
188 );
189 final List<String> expectedSecondInput = List.of(CommonUtil.EMPTY_STRING_ARRAY);
190 verifyWithInlineConfigParser(file1, file2, expectedFirstInput, expectedSecondInput);
191 }
192 }