Fixing unit test (#1253)

Added unit test for changing the context: ContextChangeTest.java (#1250)
Reformatting the setContext function.
Added entry to CHANGELOG.adoc
(cherry picked from commit 4315499)

Author: RayOffiah

CHANGELOG.adoc

@@ -49,6 +49,11 @@ Documentation::
 
 Improvement::
 
+* Add `setContext` function to ContentNode.
+
+* Add command line option --failure-level to force non-zero exit code from AsciidoctorJ CLI if specified logging level is reached. (#1114)
+* Upgrade to asciidoctorj 2.0.20 (#1208)
+* Upgrade to asciidoctorj-pdf 2.3.7 (#1182)
 * Add 'standalone' option, deprecates 'headerFooter' (#1160) (@abelsromero)
 * Upgrade to asciidoctorj-diagram 2.2.7
 

asciidoctorj-api/src/main/java/org/asciidoctor/ast/ContentNode.java

@@ -32,6 +32,9 @@ public interface ContentNode {
     @Deprecated
     String context();
     String getContext();
+
+    void setContext(String context);
+
     /**
      * @deprecated Use {@linkplain #getDocument()}  instead.
      */

asciidoctorj-core/src/main/java/org/asciidoctor/jruby/ast/impl/ContentNodeImpl.java

@@ -46,6 +46,11 @@ public String getContext() {
         return getString("context");
     }
 
+    @Override
+    public void setContext(String context) {
+        setString("context", context);
+
+    }
     @Override
     @Deprecated
     public ContentNode parent() {

asciidoctorj-core/src/test/java/org/asciidoctor/jruby/ast/impl/ContextChangeTest.java

@@ -0,0 +1,54 @@
+package org.asciidoctor.jruby.ast.impl;
+
+import org.asciidoctor.Asciidoctor;
+import org.asciidoctor.Attributes;
+import org.asciidoctor.Options;
+import org.asciidoctor.ast.Document;
+import org.asciidoctor.ast.StructuralNode;
+
+import org.junit.Test;
+import static org.hamcrest.CoreMatchers.*;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+
+public class ContextChangeTest  {
+
+    private final Asciidoctor asciiDoctor = Asciidoctor.Factory.create();
+
+    static String orderedListSample() {
+        return "= Document Title\n\n" +
+                "== Section A\n\n" +
+                ". This it item 1 in an ordered list\n\n" +
+                ". This is item 2 in an ordered list\n\n" +
+                ". This is item 3 in and ordered list\n\n";
+
+    }
+
+    @Test
+    public void get_context_of_ordered_list(){
+
+        Document document = loadDocument(orderedListSample());
+
+        assertThat(document, notNullValue());
+        assertThat(document.getBlocks().size(), equalTo(1));
+
+        StructuralNode orderedList = document.getBlocks().get(0).getBlocks().get(0);
+        assertThat(orderedList, notNullValue());
+
+        // Odd – I expected this to send back :'olist'
+        assertThat(orderedList.getContext(), equalTo("olist"));
+
+        // But can you change it?
+
+        orderedList.setContext("colist");
+
+        assertThat(orderedList.getContext(), equalTo("colist"));
+
+    }
+
+    private Document loadDocument(String source) {
+        Attributes attributes = Attributes.builder().sectionNumbers(false).build();
+        Options options = Options.builder().attributes(attributes).build();
+        return asciiDoctor.load(source, options);
+    }
+}