Use text blocks in tests (set testRelease to 17)

Author: robinst

commonmark-ext-autolink/src/test/java/org/commonmark/ext/autolink/AutolinkTest.java

@@ -91,12 +91,14 @@ public void sourceSpans() {
                         .extensions(EXTENSIONS)
                         .includeSourceSpans(IncludeSourceSpans.BLOCKS_AND_INLINES)
                         .build();
-        Node document =
-                parser.parse(
-                        "abc\n"
-                                + "http://example.com/one\n"
-                                + "def http://example.com/two\n"
-                                + "ghi http://example.com/three jkl");
+        var s =
+                """
+                abc
+                http://example.com/one
+                def http://example.com/two
+                ghi http://example.com/three jkl
+                """;
+        Node document = parser.parse(s);
 
         Paragraph paragraph = (Paragraph) document.getFirstChild();
         Text abc = (Text) paragraph.getFirstChild();

commonmark-ext-footnotes/src/test/java/org/commonmark/ext/footnotes/FootnoteHtmlRendererTest.java

@@ -25,17 +25,24 @@ private static void standardTypesExample() {
         var renderer = HtmlRenderer.builder().extensions(List.of(extension)).build();
 
         var markdown =
-                "# GFM Alerts Demo\n\n"
-                        + "> [!NOTE]\n"
-                        + "> Highlights information that users should take into account.\n\n"
-                        + "> [!TIP]\n"
-                        + "> Helpful advice for doing things better.\n\n"
-                        + "> [!IMPORTANT]\n"
-                        + "> Key information users need to know.\n\n"
-                        + "> [!WARNING]\n"
-                        + "> Urgent info that needs immediate attention.\n\n"
-                        + "> [!CAUTION]\n"
-                        + "> Advises about risks or negative outcomes.\n";
+                """
+                # GFM Alerts Demo
+
+                > [!NOTE]
+                > Highlights information that users should take into account.
+
+                > [!TIP]
+                > Helpful advice for doing things better.
+
+                > [!IMPORTANT]
+                > Key information users need to know.
+
+                > [!WARNING]
+                > Urgent info that needs immediate attention.
+
+                > [!CAUTION]
+                > Advises about risks or negative outcomes.
+                """;
 
         var html = renderer.render(parser.parse(markdown));
 
@@ -56,13 +63,18 @@ private static void customTypesExample() {
         var renderer = HtmlRenderer.builder().extensions(List.of(extension)).build();
 
         var markdown =
-                "# Custom Alert Types\n\n"
-                        + "> [!NOTE]\n"
-                        + "> Useful information that users should know.\n\n"
-                        + "> [!TIP]\n"
-                        + "> Helpful advice for doing things better.\n\n"
-                        + "> [!BUG]\n"
-                        + "> This feature has a known issue with large files (see #42).\n";
+                """
+                # Custom Alert Types
+
+                > [!NOTE]
+                > Useful information that users should know.
+
+                > [!TIP]
+                > Helpful advice for doing things better.
+
+                > [!BUG]
+                > This feature has a known issue with large files (see #42).
+                """;
 
         var html = renderer.render(parser.parse(markdown));