Implement hudson.Util.getPastTimeString migration

Issue #6

src/main/resources/META-INF/rewrite/hudson-migrations.yml

@@ -0,0 +1,13 @@
+---
+type: specs.openrewrite.org/v1beta/recipe
+name: org.openrewrite.jenkins.migrate.hudson.UtilGetPastTimeStringToGetTimeSpanString
+displayName: Replace `hudson.Util.getPastTimeString` with `getTimeSpanString`
+description: >
+  `hudson.Util.getPastTimeString` has been [deprecated](https://github.com/jenkinsci/jenkins/pull/4174)
+  since the [2.204.1 LTS release](https://www.jenkins.io/changelog-stable/#v2.204.1) on 2019-12-18.
+recipeList:
+  - org.openrewrite.java.ChangeMethodName:
+      methodPattern: hudson.Util getPastTimeString(long)
+      newMethodName: getTimeSpanString
+      matchOverrides: false
+      ignoreDefinition: true

src/test/java/org/openrewrite/jenkins/migrate/hudson/UtilGetPastTimeStringToTimeSpanStringTest.java

@@ -0,0 +1,117 @@
+package org.openrewrite.jenkins.migrate.hudson;
+
+import org.intellij.lang.annotations.Language;
+import org.junit.jupiter.api.Test;
+import org.openrewrite.java.JavaParser;
+import org.openrewrite.test.RecipeSpec;
+import org.openrewrite.test.RewriteTest;
+
+import static org.openrewrite.java.Assertions.java;
+
+class UtilGetPastTimeStringToTimeSpanStringTest implements RewriteTest {
+    @Language("java")
+    // language=java
+    private final String hudsonUtil = """
+            package hudson;
+
+            public class Util {
+                public static String getTimeSpanString(long duration) {
+                        return "anything";
+                }
+
+                @Deprecated
+                public static String getPastTimeString(long duration) {
+                    return getTimeSpanString(duration);
+                }
+            }
+            """.stripIndent();
+
+    @Override
+    public void defaults(RecipeSpec spec) {
+        spec.parser(JavaParser.fromJavaVersion().dependsOn(hudsonUtil));
+        spec.recipeFromResource("/META-INF/rewrite/hudson-migrations.yml", "org.openrewrite.jenkins.migrate.hudson.UtilGetPastTimeStringToGetTimeSpanString");
+    }
+
+    @Test
+    void shouldReplaceFullyQualifiedMethodCall() {
+        // language=java
+        rewriteRun(java(
+                """
+                        package org.example;
+
+                        class MyConsumer {
+                            String format(long timestamp) {
+                                return hudson.Util.getPastTimeString(timestamp);
+                            }
+                        }
+                        """.stripIndent(),
+                """
+                        package org.example;
+
+                        class MyConsumer {
+                            String format(long timestamp) {
+                                return hudson.Util.getTimeSpanString(timestamp);
+                            }
+                        }
+                        """.stripIndent()
+        ));
+    }
+
+    @Test
+    void shouldReplaceImportedMethodCall() {
+        // language=java
+        rewriteRun(java(
+                """
+                        package org.example;
+
+                        import hudson.Util;
+
+                        class MyConsumer {
+                            String format(long timestamp) {
+                                return Util.getPastTimeString(timestamp);
+                            }
+                        }
+                        """.stripIndent(),
+                """
+                        package org.example;
+
+                        import hudson.Util;
+
+                        class MyConsumer {
+                            String format(long timestamp) {
+                                return Util.getTimeSpanString(timestamp);
+                            }
+                        }
+                        """.stripIndent()
+        ));
+    }
+
+    @Test
+    void shouldReplaceStaticImportedMethodCall() {
+        // language=java
+        rewriteRun(java(
+                """
+                        package org.example;
+
+                        import static hudson.Util.getPastTimeString;
+
+                        class MyConsumer {
+                            String format(long timestamp) {
+                                return getPastTimeString(timestamp);
+                            }
+                        }
+                        """.stripIndent(),
+                """
+                        package org.example;
+
+                        import static hudson.Util.getTimeSpanString;
+
+                        class MyConsumer {
+                            String format(long timestamp) {
+                                return getTimeSpanString(timestamp);
+                            }
+                        }
+                        """.stripIndent()
+        ));
+    }
+}