SONAR-13357 Custom hotspot rule's description isn't split into tabs

server/sonar-server-common/src/main/java/org/sonar/server/rule/HotspotRuleDescription.java

   }
 
   public static HotspotRuleDescription from(RuleDefinitionDto dto) {
-    String description = dto.getDescription();
+    String description = dto.isCustomRule() ? RuleDescriptionFormatter.getDescriptionAsHtml(dto) : dto.getDescription();
     return from(description);
   }
 
       if (endIndex == -1) {
         endIndex = description.length();
       }
-      return new String[] {
+      return new String[]{
         description.substring(0, beginningIndex) + description.substring(endIndex),
         description.substring(beginningIndex, endIndex)
       };
     } else {
-      return new String[] {description, ""};
+      return new String[]{description, ""};
     }
 
   }

server/sonar-server-common/src/test/java/org/sonar/server/rule/HotspotRuleDescriptionTest.java

 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.sonar.db.rule.RuleDefinitionDto;
+import org.sonar.db.rule.RuleDto;
 import org.sonar.db.rule.RuleTesting;
 
 import static org.apache.commons.lang.RandomStringUtils.randomAlphabetic;
     assertThat(result.getFixIt().get()).isEqualTo(RECOMMENTEDCODINGPRACTICE + SEE);
   }
 
+  @Test
+  public void parse_custom_rule_description() {
+    String ruleDescription = "This is the custom rule description";
+    String exceptionsContent = "This the exceptions section content";
+    String askContent = "This is the ask section content";
+    String recommendedContent = "This is the recommended section content";
+
+    RuleDefinitionDto dto = RuleTesting.newRule()
+      .setTemplateUuid("123")
+      .setDescriptionFormat(RuleDto.Format.MARKDOWN)
+      .setDescription(
+        ruleDescription + "\n"
+        + "== Exceptions" + "\n"
+        + exceptionsContent + "\n"
+        + "== Ask Yourself Whether" + "\n"
+        + askContent + "\n"
+        + "== Recommended Secure Coding Practices" + "\n"
+        + recommendedContent + "\n"
+      );
+
+    HotspotRuleDescription result = HotspotRuleDescription.from(dto);
+
+    assertThat(result.getRisk().get()).hasToString(
+      ruleDescription + "<br/>"
+      + "<h2>Exceptions</h2>"
+      + exceptionsContent + "<br/>"
+    );
+    assertThat(result.getVulnerable().get()).hasToString(
+        "<h2>Ask Yourself Whether</h2>"
+        + askContent + "<br/>"
+    );
+    assertThat(result.getFixIt().get()).hasToString(
+      "<h2>Recommended Secure Coding Practices</h2>"
+        + recommendedContent + "<br/>"
+    );
+  }
+
   /*
    * Bunch of static constant to create rule description.
    */

server/sonar-webserver-webapi/src/main/java/org/sonar/server/hotspot/ws/ShowAction.java

 import org.sonar.server.issue.TextRangeResponseFormatter;
 import org.sonar.server.issue.ws.UserResponseFormatter;
 import org.sonar.server.rule.HotspotRuleDescription;
-import org.sonar.server.rule.RuleDescriptionFormatter;
 import org.sonar.server.security.SecurityStandards;
 import org.sonar.server.text.MacroInterpreter;
 import org.sonarqube.ws.Common;
       .setSecurityCategory(sqCategory.getKey())
       .setVulnerabilityProbability(sqCategory.getVulnerability().name());
 
-    if (ruleDefinitionDto.isCustomRule()) {
-      String htmlDescription = RuleDescriptionFormatter.getDescriptionAsHtml(ruleDefinitionDto);
-      if (htmlDescription != null) {
-        ruleBuilder.setRiskDescription(macroInterpreter.interpret(htmlDescription));
-      }
-    } else {
-      HotspotRuleDescription hotspotRuleDescription = HotspotRuleDescription.from(ruleDefinitionDto);
-      hotspotRuleDescription.getVulnerable().ifPresent(ruleBuilder::setVulnerabilityDescription);
-      hotspotRuleDescription.getRisk().ifPresent(ruleBuilder::setRiskDescription);
-      hotspotRuleDescription.getFixIt().ifPresent(ruleBuilder::setFixRecommendations);
-    }
+    HotspotRuleDescription hotspotRuleDescription = HotspotRuleDescription.from(ruleDefinitionDto);
+    hotspotRuleDescription.getVulnerable().ifPresent(ruleBuilder::setVulnerabilityDescription);
+    hotspotRuleDescription.getRisk().ifPresent(ruleBuilder::setRiskDescription);
+    hotspotRuleDescription.getFixIt().ifPresent(ruleBuilder::setFixRecommendations);
 
     responseBuilder.setRule(ruleBuilder.build());
   }
     boolean hotspotOnProject = Objects.equals(project.uuid(), componentUuid);
     ComponentDto component = hotspotOnProject ? project
       : dbClient.componentDao().selectByUuid(dbSession, componentUuid)
-        .orElseThrow(() -> new NotFoundException(format("Component with uuid '%s' does not exist", componentUuid)));
+      .orElseThrow(() -> new NotFoundException(format("Component with uuid '%s' does not exist", componentUuid)));
 
     return new Components(project, component);
   }

server/sonar-webserver-webapi/src/test/java/org/sonar/server/hotspot/ws/ShowActionTest.java

     userSessionRule.logIn().addProjectPermission(UserRole.USER, project);
     ComponentDto file = dbTester.components().insertComponent(newFileDto(project));
 
-    String description = "<div>line1\nline2</div>";
-    String parsedDescription = "&lt;div&gt;line1<br/>line2&lt;/div&gt;";
-    String resultingDescription = "!" + parsedDescription + "!";
+    String description = "== Title\n<div>line1\nline2</div>";
 
     RuleDefinitionDto rule = newRule(SECURITY_HOTSPOT,
       r -> r.setTemplateUuid("123")
         .setDescription(description)
         .setDescriptionFormat(MARKDOWN));
 
-    doReturn(resultingDescription).when(macroInterpreter).interpret(parsedDescription);
-
     IssueDto hotspot = dbTester.issues().insertHotspot(rule, project, file);
     mockChangelogAndCommentsFormattingContext();
 
     Hotspots.ShowWsResponse response = newRequest(hotspot)
       .executeProtobuf(Hotspots.ShowWsResponse.class);
 
-    assertThat(response.getRule().getRiskDescription()).isEqualTo(resultingDescription);
+    assertThat(response.getRule().getRiskDescription()).isEqualTo("<h2>Title</h2>&lt;div&gt;line1<br/>line2&lt;/div&gt;");
   }
 
   @Test

sonar-markdown/src/main/java/org/sonar/markdown/HtmlHeadingChannel.java

     CharSequence headingText = token.subSequence(index, token.length());
 
     output.append("<h" + headingLevel + ">");
-    output.append(headingText);
+    output.append(headingText.toString().trim());
     output.append("</h" + headingLevel + ">");
   }
 }

sonar-markdown/src/test/java/org/sonar/markdown/MarkdownTest.java

 
   @Test
   public void shouldDecorateHeadings() {
-    assertThat(Markdown.convertToHtml("  = Top\r== Sub\r\n=== Subsub\n ==== \n 1.five"))
-        .isEqualTo("<h1>Top\r</h1><h2>Sub\r\n</h2><h3>Subsub\n</h3><h4></h4> 1.five");
+    assertThat(Markdown.convertToHtml("  = Top\r== Sub\r\n=== Sub sub\n ==== \n 1.five"))
+        .isEqualTo("<h1>Top</h1><h2>Sub</h2><h3>Sub sub</h3><h4></h4> 1.five");
   }
 
   @Test