Fix button div line separators

Author: ammachado

components/sbm-recipes-boot-upgrade/src/main/java/org/springframework/sbm/boot/upgrade_27_30/report/SpringBootUpgradeReportSection.java

@@ -51,6 +51,14 @@ public class SpringBootUpgradeReportSection {
     private static final String GITHUB_ISSUE = "**Issue:** https://github.com/spring-projects-experimental/spring-boot-migrator/issues/%1$d[#%1$d^, role=\"ext-link\"]  + %n";
     private static final String GITHUB_CONTRIBUTOR = "https://github.com/%1$s[@%1$s^, role=\"ext-link\"]";
     private static final String ls = System.lineSeparator();
+
+    public static final String BUTTON_CODE = """
+            ++++
+            <div class="run-a-recipe" recipe="<RECIPE>">
+            </div>
+            ++++
+            """.replace("\n", System.lineSeparator());
+
     /**
      * The spring project(s)/modules this change comes from.
      *
@@ -263,13 +271,7 @@ private void renderRecipeButton(StringBuilder sb, String recipe) {
                         <span class="visually-hidden">Loading...</span>
                     </button>
             */
-            String buttonCode = """
-                    ++++
-                    <div class="run-a-recipe" recipe="<RECIPE>">
-                    </div>
-                    ++++
-                    """;
-            buttonCode = buttonCode.replace("<RECIPE>", recipe);
+            String buttonCode = BUTTON_CODE.replace("<RECIPE>", recipe);
             sb.append(buttonCode);
         }
     }

components/sbm-recipes-boot-upgrade/src/test/java/org/springframework/sbm/boot/upgrade_27_30/report/SpringBootUpgradeReportTestSupport.java

@@ -104,7 +104,6 @@ public void shouldStartWith(@Language("adoc") String expectedOutput, Map<String,
             verify(assertion);
         }
 
-
         private Map<String, String> defaultMap() {
             String path = Path
                     .of(".")
@@ -214,14 +213,7 @@ private String replaceRecipeButtonCodeFromExpectedOutput(SpringBootUpgradeReport
             if (sectionUnderTest.getRemediation().getPossibilities().isEmpty()) {
                 String recipe = sectionUnderTest.getRemediation().getRecipe();
                 if (recipe != null) {
-                    String target = """
-                                                                                    
-                              ++++
-                              <div class="run-a-recipe" recipe="<RECIPE>">
-                              </div>
-                              ++++
-                                                                            
-                              """;
+                    String target = "%n%s%n".formatted(SpringBootUpgradeReportSection.BUTTON_CODE);
                     buttonCodes.add(target.replace("<RECIPE>", recipe));
                 }
             } else {
@@ -232,14 +224,7 @@ private String replaceRecipeButtonCodeFromExpectedOutput(SpringBootUpgradeReport
                         .map(RemediationPossibility::getRecipe)
                         .filter(Objects::nonNull)
                         .map(recipe -> {
-                            String target = """
-                                                                                    
-                              ++++
-                              <div class="run-a-recipe" recipe="<RECIPE>">
-                              </div>
-                              ++++
-                                                                            
-                              """;
+                            String target = "%n%s%n".formatted(SpringBootUpgradeReportSection.BUTTON_CODE);
                             return target.replace("<RECIPE>", recipe);
                         })
                         .collect(Collectors.toList());
@@ -263,7 +248,6 @@ private void withRecipes(Consumer<Recipes> recipesConsumer) {
         }
 
         private String replacePlaceHolders(String expectedOutput, Map<String, String> templateVariables) {
-            StringBuffer sb = new StringBuffer();
             // hacked, there's most probably a better way but ST couldn't digest html code
             for (Map.Entry<String, String> kv : templateVariables.entrySet()) {
                 String key = "<" + kv.getKey() + ">";