[test-schema] Fix trim indentation for test codes

Co-authored-by: Juan Martín Sotuyo Dodero <juansotuyo@gmail.com>

pmd-test-schema/src/main/java/net/sourceforge/pmd/test/schema/BaseTestParserImpl.java

@@ -98,7 +98,7 @@ class BaseTestParserImpl {
             if (description == null) {
                 return;
             }
-            descriptor.setDescription(description);
+            descriptor.setDescription(description.trim());
         }
 
         parseBoolAttribute(testCode, "reinitializeRule", true, err, "Attribute 'reinitializeRule' is deprecated and ignored, assumed true");
@@ -206,11 +206,9 @@ class BaseTestParserImpl {
             }
             usedFragments.add(id.getValue());
             code = parseTextNodeNoTrim(fragment);
-            // first trim empty lines at beginning/end
-            code = code.trim();
-            // then trim any indentation
-            code = StringUtil.trimIndent(Chars.wrap(code)).toString();
         }
+        // first trim empty lines at beginning/end, then trim any indentation
+        code = StringUtil.trimIndent(Chars.wrap(code).trimBlankLines()).toString();
         return code;
     }
 
@@ -296,7 +294,7 @@ class BaseTestParserImpl {
         if (node == null) {
             return null;
         }
-        return parseTextNode(node);
+        return parseTextNodeNoTrim(node);
     }
 
     private Element getSingleChild(Element parentElm, String nodeName, boolean required, PmdXmlReporter err) {

pmd-test-schema/src/test/java/net/sourceforge/pmd/test/schema/TestSchemaParserTest.java

@@ -6,6 +6,7 @@ package net.sourceforge.pmd.test.schema;
 
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.containsString;
+import static org.hamcrest.Matchers.equalTo;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 
@@ -39,6 +40,7 @@ class TestSchemaParserTest {
                       + "        <expected-problems>4</expected-problems>\n"
                       + "        <code><![CDATA[\n"
                       + "            public class Foo {\n"
+                      + "                private int i;\n"
                       + "            }\n"
                       + "            ]]></code>\n"
                       + "    </test-code>\n"
@@ -55,6 +57,34 @@ class TestSchemaParserTest {
         RuleTestCollection parsed = parseFile(file);
 
         assertEquals(2, parsed.getTests().size());
+        assertThat("Indentation should be removed",
+                parsed.getTests().get(0).getCode(), equalTo("public class Foo {\n    private int i;\n}"));
+    }
+
+    @Test
+    void testSharedCodeFragment() throws IOException {
+        String file = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
+                + "<test-data\n"
+                + "        xmlns=\"http://pmd.sourceforge.net/rule-tests\"\n"
+                + "        xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n"
+                + "        xsi:schemaLocation=\"http://pmd.sourceforge.net/rule-tests net/sourceforge/pmd/test/schema/rule-tests_1_0_0.xsd\">\n"
+                + "    <code-fragment id=\"code1\"><![CDATA[\n"
+                + "        public class Foo {\n"
+                + "            private int i;\n"
+                + "        }\n"
+                + "        ]]></code-fragment>\n"
+                + "    <test-code>\n"
+                + "        <description>equality operators with Double.NaN</description>\n"
+                + "        <expected-problems>4</expected-problems>\n"
+                + "        <code-ref id=\"code1\" />\n"
+                + "    </test-code>\n"
+                + "</test-data>\n";
+
+        RuleTestCollection parsed = parseFile(file);
+
+        assertEquals(1, parsed.getTests().size());
+        assertThat("Indentation should be removed",
+                parsed.getTests().get(0).getCode(), equalTo("public class Foo {\n    private int i;\n}"));
     }
 
     @Test