message: Add a KeysetManagerTest where we add a destroy a key.
  I had a bug somewhere else while developing, and this test was useful to find it. Additionally, we change the names to follow the naming convention.
  GitOrigin-RevId:
diff: package com.google.crypto.tink;
  import static com.google.common.truth.Truth.assertThat;
  +import static org.junit.Assert.assertTrue;
  import static org.junit.Assert.fail;
  import com.google.crypto.tink.config.TinkConfig;
  @@ -618,7 +619,7 @@ public class KeysetManagerTest {
  }
  @Test
  - public void testAddFromTemplate_onePrimary() throws Exception {
  + public void testAddNewKey_onePrimary() throws Exception {
  KeysetManager keysetManager = KeysetManager.withEmptyKeyset();
  int keyId = keysetManager.addNewKey(MacKeyTemplates.HMAC_SHA256_128BITTAG, true);
  Keyset keyset = keysetManager.getKeysetHandle().getKeyset();
  @@ -628,7 +629,7 @@ public class KeysetManagerTest {
  }
  @Test
  - public void testAddFromTemplate_onePrimaryAnotherPrimary() throws Exception {
  + public void testAddNewKey_onePrimaryAnotherPrimary() throws Exception {
  KeysetManager keysetManager = KeysetManager.withEmptyKeyset();
  keysetManager.addNewKey(MacKeyTemplates.HMAC_SHA256_128BITTAG, true);
  int primaryKeyId = keysetManager.addNewKey(MacKeyTemplates.HMAC_SHA256_128BITTAG, true);
  @@ -638,7 +639,7 @@ public class KeysetManagerTest {
  }
  @Test
  - public void testAddFromTemplate_primaryThenNonPrimary() throws Exception {
  + public void testAddNewKey_primaryThenNonPrimary() throws Exception {
  KeysetManager keysetManager = KeysetManager.withEmptyKeyset();
  int primaryKeyId = keysetManager.addNewKey(MacKeyTemplates.HMAC_SHA256_128BITTAG, true);
  keysetManager.addNewKey(MacKeyTemplates.HMAC_SHA256_128BITTAG, false);
  @@ -647,6 +648,18 @@ public class KeysetManagerTest {
  assertThat(keyset.getPrimaryKeyId()).isEqualTo(primaryKeyId);
  }
  + @Test
  + public void testAddNewKey_addThenDestroy() throws Exception {
  + KeysetManager keysetManager = KeysetManager.withEmptyKeyset();
  + keysetManager.addNewKey(MacKeyTemplates.HMAC_SHA256_128BITTAG, true);
  + int secondaryKeyId = keysetManager.addNewKey(MacKeyTemplates.HMAC_SHA256_128BITTAG, false);
  + keysetManager.destroy(secondaryKeyId);
  + Keyset keyset = keysetManager.getKeysetHandle().getKeyset();
  + assertThat(keyset.getKeyCount()).isEqualTo(2);
  + // One of the two keys is destroyed and doesn't have keyData anymore.
  + assertTrue(!keyset.getKey(0).hasKeyData() || !keyset.getKey(1).hasKeyData());
  + }
  +
  private void manipulateKeyset(KeysetManager manager) {
  try {
  