Update DocumentExample for Hamcrest to AssertJ

To match blog

Author: timtebeek

src/test/java/org/openrewrite/java/testing/hamcrest/MigrateHamcrestToAssertJTest.java

@@ -56,35 +56,55 @@ public void defaults(RecipeSpec spec) {
     @Test
     @DocumentExample
     void isEqualTo() {
+        //language=java
         rewriteRun(
-          //language=java
           java("""
-            import org.junit.jupiter.api.Test;
-            import static org.hamcrest.MatcherAssert.assertThat;
-            import static org.hamcrest.Matchers.is;
-            import static org.hamcrest.Matchers.equalTo;
-                            
-            class ATest {
-                @Test
-                void testEquals() {
-                    String str1 = "Hello world!";
-                    String str2 = "Hello world!";
-                    assertThat(str1, is(equalTo(str2)));
+            class Biscuit {
+                String name;
+                Biscuit(String name) {
+                    this.name = name;
+                }
+                
+                int getChocolateChipCount() {
+                    return 10;
+                }
+
+                int getHazelnutCount() {
+                    return 3;
                 }
             }
-            """, """
+            """),
+          java("""
             import org.junit.jupiter.api.Test;
-                        
-            import static org.assertj.core.api.Assertions.assertThat;
-                        
-            class ATest {
+
+            import static org.hamcrest.MatcherAssert.assertThat;
+            import static org.hamcrest.Matchers.*;
+
+            public class BiscuitTest {
                 @Test
-                void testEquals() {
-                    String str1 = "Hello world!";
-                    String str2 = "Hello world!";
-                    assertThat(str1).isEqualTo(str2);
+                public void biscuits() {
+                    Biscuit theBiscuit = new Biscuit("Ginger");
+                    Biscuit myBiscuit = new Biscuit("Ginger");
+                    assertThat(theBiscuit, equalTo(myBiscuit));
+                    assertThat("chocolate chips", theBiscuit.getChocolateChipCount(), equalTo(10));
+                    assertThat("hazelnuts", theBiscuit.getHazelnutCount(), equalTo(3));
                 }
             }
+            """, """
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class BiscuitTest {
+    @Test
+    public void biscuits() {
+        Biscuit theBiscuit = new Biscuit("Ginger");
+        Biscuit myBiscuit = new Biscuit("Ginger");
+        assertThat(theBiscuit).isEqualTo(myBiscuit);
+        assertThat(theBiscuit.getChocolateChipCount()).as("chocolate chips").isEqualTo(10);
+        assertThat(theBiscuit.getHazelnutCount()).as("hazelnuts").isEqualTo(3);
+    }
+}
             """));
     }