Issue #13345: Enable examples tests for RegexpMultilineCheck

src/xdocs-examples/java/com/puppycrawl/tools/checkstyle/checks/regexp/RegexpMultilineCheckExamplesTest.java

@@ -19,12 +19,13 @@
 
 package com.puppycrawl.tools.checkstyle.checks.regexp;
 
-import org.junit.jupiter.api.Disabled;
+import static com.puppycrawl.tools.checkstyle.checks.regexp.RegexpCheck.MSG_ILLEGAL_REGEXP;
+
 import org.junit.jupiter.api.Test;
 
 import com.puppycrawl.tools.checkstyle.AbstractExamplesModuleTestSupport;
+import com.puppycrawl.tools.checkstyle.utils.CommonUtil;
 
-@Disabled("until https://github.com/checkstyle/checkstyle/issues/13345")
 public class RegexpMultilineCheckExamplesTest extends AbstractExamplesModuleTestSupport {
     @Override
     protected String getPackageLocation() {
@@ -33,55 +34,55 @@ protected String getPackageLocation() {
 
     @Test
     public void testExample1() throws Exception {
-        final String[] expected = {
-
-        };
-
-        verifyWithInlineConfigParser(getPath("Example1.txt"), expected);
+        final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
+        verifyWithInlineConfigParser(getPath("Example1.java"), expected);
     }
 
     @Test
     public void testExample2() throws Exception {
         final String[] expected = {
-
+            "14: " + getCheckMessage(MSG_ILLEGAL_REGEXP, "System\\.(out)|(err)\\.print(ln)?\\("),
+            "16: " + getCheckMessage(MSG_ILLEGAL_REGEXP, "System\\.(out)|(err)\\.print(ln)?\\("),
+            "20: " + getCheckMessage(MSG_ILLEGAL_REGEXP, "System\\.(out)|(err)\\.print(ln)?\\("),
+            "24: " + getCheckMessage(MSG_ILLEGAL_REGEXP, "System\\.(out)|(err)\\.print(ln)?\\("),
+            "29: " + getCheckMessage(MSG_ILLEGAL_REGEXP, "System\\.(out)|(err)\\.print(ln)?\\("),
+            "31: " + getCheckMessage(MSG_ILLEGAL_REGEXP, "System\\.(out)|(err)\\.print(ln)?\\("),
+            "33: " + getCheckMessage(MSG_ILLEGAL_REGEXP, "System\\.(out)|(err)\\.print(ln)?\\("),
+            "36: " + getCheckMessage(MSG_ILLEGAL_REGEXP, "System\\.(out)|(err)\\.print(ln)?\\("),
+            "38: " + getCheckMessage(MSG_ILLEGAL_REGEXP, "System\\.(out)|(err)\\.print(ln)?\\("),
+            "40: " + getCheckMessage(MSG_ILLEGAL_REGEXP, "System\\.(out)|(err)\\.print(ln)?\\("),
         };
 
-        verifyWithInlineConfigParser(getPath("Example2.txt"), expected);
+        verifyWithInlineConfigParser(getPath("Example2.java"), expected);
     }
 
     @Test
     public void testExample3() throws Exception {
         final String[] expected = {
-
+            "15: " + getCheckMessage(MSG_ILLEGAL_REGEXP, "System\\.out.*?print\\("),
         };
 
-        verifyWithInlineConfigParser(getPath("Example3.txt"), expected);
+        verifyWithInlineConfigParser(getPath("Example3.java"), expected);
     }
 
     @Test
     public void testExample4() throws Exception {
         final String[] expected = {
-
+            "40: " + getCheckMessage(MSG_ILLEGAL_REGEXP, "Test #[0-9]+:[A-Za-z ]+"),
+            "42: " + getCheckMessage(MSG_ILLEGAL_REGEXP, "Test #[0-9]+:[A-Za-z ]+"),
         };
 
-        verifyWithInlineConfigParser(getPath("Example4.txt"), expected);
+        verifyWithInlineConfigParser(getPath("Example4.java"), expected);
     }
 
     @Test
     public void testExample5() throws Exception {
         final String[] expected = {
-
-        };
-
-        verifyWithInlineConfigParser(getPath("Example5.txt"), expected);
-    }
-
-    @Test
-    public void testExample6() throws Exception {
-        final String[] expected = {
-
+            "30: " + getCheckMessage(MSG_ILLEGAL_REGEXP, "Test #[0-9]+:[A-Za-z ]+"),
+            "39: " + getCheckMessage(MSG_ILLEGAL_REGEXP, "Test #[0-9]+:[A-Za-z ]+"),
+            "41: " + getCheckMessage(MSG_ILLEGAL_REGEXP, "Test #[0-9]+:[A-Za-z ]+"),
         };
 
-        verifyWithInlineConfigParser(getPath("Example6.txt"), expected);
+        verifyWithInlineConfigParser(getPath("Example5.java"), expected);
     }
 }

src/xdocs-examples/resources/com/puppycrawl/tools/checkstyle/checks/regexp/regexpmultiline/Example1.java

@@ -0,0 +1,41 @@
+/*xml
+<module name="Checker">
+  <module name="RegexpMultiline"/>
+</module>
+*/
+package com.puppycrawl.tools.checkstyle.checks.regexp.regexpmultiline;
+
+// xdoc section -- start
+class Example1 {
+  void testMethod1() {
+
+    System.out.print("Example");
+
+    System.err.println("Example");
+    System
+    .out.print("Example");
+    System
+    .err.println("Example");
+    System.
+    out.print("Example");
+    System.
+    err.println("Example");
+  }
+
+  void testMethod2() {
+
+    System.out.println("Test #1: this is a test string");
+
+    System.out.println("TeSt #2: This is a test string");
+
+    System.out.println("TEST #3: This is a test string");
+    int i = 5;
+
+    System.out.println("Value of i: " + i);
+
+    System.out.println("Test #4: This is a test string");
+
+    System.out.println("TEst #5: This is a test string");
+  }
+}
+// xdoc section -- end

src/xdocs-examples/resources/com/puppycrawl/tools/checkstyle/checks/regexp/regexpmultiline/Example2.java

@@ -0,0 +1,43 @@
+/*xml
+<module name="Checker">
+  <module name="RegexpMultiline">
+    <property name="format" value="System\.(out)|(err)\.print(ln)?\("/>
+  </module>
+</module>
+*/
+package com.puppycrawl.tools.checkstyle.checks.regexp.regexpmultiline;
+
+// xdoc section -- start
+class Example2 {
+  void testMethod1() {
+    // violation below, 'Line matches the illegal pattern'
+    System.out.print("Example");
+    // violation below, 'Line matches the illegal pattern'
+    System.err.println("Example");
+    System
+      .out.print("Example");
+    System
+      .err.println("Example"); // violation, 'Line matches the illegal pattern'
+    System.
+      out.print("Example");
+    System.
+      err.println("Example"); // violation, 'Line matches the illegal pattern'
+  }
+
+  void testMethod2() {
+    // violation below, 'Line matches the illegal pattern'
+    System.out.println("Test #1: this is a test string");
+    // violation below, 'Line matches the illegal pattern'
+    System.out.println("TeSt #2: This is a test string");
+    // violation below, 'Line matches the illegal pattern'
+    System.out.println("TEST #3: This is a test string");
+    int i = 5;
+    // violation below, 'Line matches the illegal pattern'
+    System.out.println("Value of i: " + i);
+    // violation below, 'Line matches the illegal pattern'
+    System.out.println("Test #4: This is a test string");
+    // violation below, 'Line matches the illegal pattern'
+    System.out.println("TEst #5: This is a test string");
+  }
+}
+// xdoc section -- end

src/xdocs-examples/resources/com/puppycrawl/tools/checkstyle/checks/regexp/regexpmultiline/Example3.java

@@ -0,0 +1,44 @@
+/*xml
+<module name="Checker">
+  <module name="RegexpMultiline">
+    <property name="matchAcrossLines" value="true"/>
+    <property name="format" value="System\.out.*?print\("/>
+  </module>
+</module>
+*/
+package com.puppycrawl.tools.checkstyle.checks.regexp.regexpmultiline;
+
+// xdoc section -- start
+class Example3 {
+  void testMethod1() {
+    // violation below, 'Line matches the illegal pattern'
+    System.out.print("Example");
+
+    System.err.println("Example");
+    System
+    .out.print("Example");
+    System
+    .err.println("Example");
+    System.
+    out.print("Example");
+    System.
+    err.println("Example");
+  }
+
+  void testMethod2() {
+
+    System.out.println("Test #1: this is a test string");
+
+    System.out.println("TeSt #2: This is a test string");
+
+    System.out.println("TEST #3: This is a test string");
+    int i = 5;
+
+    System.out.println("Value of i: " + i);
+
+    System.out.println("Test #4: This is a test string");
+
+    System.out.println("TEst #5: This is a test string");
+  }
+}
+// xdoc section -- end

src/xdocs-examples/resources/com/puppycrawl/tools/checkstyle/checks/regexp/regexpmultiline/Example4.java

@@ -0,0 +1,45 @@
+/*xml
+<module name="Checker">
+  <module name="RegexpMultiline">
+    <property name="format" value="Test #[0-9]+:[A-Za-z ]+"/>
+    <property name="ignoreCase" value="true"/>
+    <property name="maximum" value="3"/>
+  </module>
+</module>
+*/
+package com.puppycrawl.tools.checkstyle.checks.regexp.regexpmultiline;
+
+// xdoc section -- start
+class Example4 {
+  void testMethod1() {
+
+    System.out.print("Example");
+
+    System.err.println("Example");
+    System
+    .out.print("Example");
+    System
+    .err.println("Example");
+    System.
+    out.print("Example");
+    System.
+    err.println("Example");
+  }
+
+  void testMethod2() {
+
+    System.out.println("Test #1: this is a test string");
+
+    System.out.println("TeSt #2: This is a test string");
+
+    System.out.println("TEST #3: This is a test string");
+    int i = 5;
+
+    System.out.println("Value of i: " + i);
+    // violation below, 'Line matches the illegal pattern'
+    System.out.println("Test #4: This is a test string");
+    // violation below, 'Line matches the illegal pattern'
+    System.out.println("TEst #5: This is a test string");
+  }
+}
+// xdoc section -- end