Add a check so newly saved createCostTransitions get recognized and saved to the database (#2335)

* Add a check so newly saved createCostTransitions get recognized and saved to the database

* Fix equals check

* Rename equals method

* Add comment explaining need for createBillingCostTransitionEqualCheck

core/src/main/java/google/registry/model/tld/Tld.java

@@ -138,7 +138,10 @@ public class Tld extends ImmutableObject implements Buildable, UnsafeSerializabl
     try {
       String thisYaml = mapper.writeValueAsString(this);
       String otherYaml = mapper.writeValueAsString(tldToCompare);
-      return thisYaml.equals(otherYaml);
+      // Since Jackson uses getters and not field values to construct the YAML representation, an
+      // explicit check of the createBillingCostTransitions is necessary since this field is
+      // auto-populated in the getter when the field is set to null.
+      return thisYaml.equals(otherYaml) && createBillingCostTransitionsEqual(tldToCompare);
     } catch (JsonProcessingException e) {
       throw new RuntimeException(e);
     }
@@ -692,6 +695,15 @@ public class Tld extends ImmutableObject implements Buildable, UnsafeSerializabl
         .toValueMap();
   }
 
+  public boolean createBillingCostTransitionsEqual(Tld newTld) {
+    if (createBillingCostTransitions == null) {
+      return false;
+    }
+    return createBillingCostTransitions
+        .toValueMap()
+        .equals(newTld.getCreateBillingCostTransitions());
+  }
+
   /**
    * Returns the add-on cost of a domain restore (the flat tld-wide fee charged in addition to one
    * year of renewal for that name).

core/src/test/java/google/registry/tools/ConfigureTldCommandTest.java

@@ -140,6 +140,8 @@ public class ConfigureTldCommandTest extends CommandTestCase<ConfigureTldCommand
         tld.asBuilder()
             .setIdnTables(ImmutableSet.of(JA, UNCONFUSABLE_LATIN, EXTENDED_LATIN))
             .setAllowedFullyQualifiedHostNames(ImmutableSet.of("zeta", "alpha", "gamma", "beta"))
+            .setCreateBillingCostTransitions(
+                ImmutableSortedMap.of(START_OF_TIME, Money.of(USD, 13)))
             .build());
     File tldFile = tmpDir.resolve("idns.yaml").toFile();
     Files.asCharSink(tldFile, UTF_8).write(loadFile(getClass(), "idns.yaml"));
@@ -149,6 +151,22 @@ public class ConfigureTldCommandTest extends CommandTestCase<ConfigureTldCommand
         .hasLogAtLevelWithMessage(INFO, "TLD YAML file contains no new changes");
   }
 
+  @Test
+  void testSuccess_addCreateCostTransitions_hasDiff() throws Exception {
+    Tld tld = createTld("idns");
+    persistResource(
+        tld.asBuilder()
+            .setIdnTables(ImmutableSet.of(JA, UNCONFUSABLE_LATIN, EXTENDED_LATIN))
+            .setAllowedFullyQualifiedHostNames(ImmutableSet.of("zeta", "alpha", "gamma", "beta"))
+            .build());
+    File tldFile = tmpDir.resolve("idns.yaml").toFile();
+    Files.asCharSink(tldFile, UTF_8).write(loadFile(getClass(), "idns.yaml"));
+    runCommandForced("--input=" + tldFile);
+    Tld updatedTld = Tld.get("idns");
+    testTldConfiguredSuccessfully(updatedTld, "idns.yaml");
+    assertThat(tld.createBillingCostTransitionsEqual(updatedTld)).isFalse();
+  }
+
   @Test
   void testSuccess_outOfOrderFieldsOnCreate() throws Exception {
     File tldFile = tmpDir.resolve("outoforderfields.yaml").toFile();
@@ -580,6 +598,8 @@ public class ConfigureTldCommandTest extends CommandTestCase<ConfigureTldCommand
         tld.asBuilder()
             .setIdnTables(ImmutableSet.of(JA, UNCONFUSABLE_LATIN, EXTENDED_LATIN))
             .setAllowedFullyQualifiedHostNames(ImmutableSet.of("zeta", "alpha", "gamma", "beta"))
+            .setCreateBillingCostTransitions(
+                ImmutableSortedMap.of(START_OF_TIME, Money.of(USD, 13)))
             .build());
     File tldFile = tmpDir.resolve("idns.yaml").toFile();
     Files.asCharSink(tldFile, UTF_8).write(loadFile(getClass(), "idns.yaml"));
@@ -626,6 +646,8 @@ public class ConfigureTldCommandTest extends CommandTestCase<ConfigureTldCommand
         tld.asBuilder()
             .setIdnTables(ImmutableSet.of(JA, UNCONFUSABLE_LATIN, EXTENDED_LATIN))
             .setAllowedFullyQualifiedHostNames(ImmutableSet.of("zeta", "alpha", "gamma", "beta"))
+            .setCreateBillingCostTransitions(
+                ImmutableSortedMap.of(START_OF_TIME, Money.of(USD, 13)))
             .setBreakglassMode(true)
             .build());
     File tldFile = tmpDir.resolve("idns.yaml").toFile();
@@ -645,6 +667,8 @@ public class ConfigureTldCommandTest extends CommandTestCase<ConfigureTldCommand
         tld.asBuilder()
             .setIdnTables(ImmutableSet.of(JA, UNCONFUSABLE_LATIN, EXTENDED_LATIN))
             .setAllowedFullyQualifiedHostNames(ImmutableSet.of("zeta", "alpha", "gamma", "beta"))
+            .setCreateBillingCostTransitions(
+                ImmutableSortedMap.of(START_OF_TIME, Money.of(USD, 13)))
             .setBreakglassMode(true)
             .build());
     File tldFile = tmpDir.resolve("idns.yaml").toFile();