test(record_util): make a copy to test for backwards compatibility

There are some inconsistencies between enum string values and their
declarations, e.g. `balance-slb` (which has special handling in the API
generator), or `depth-first` (which does not).

We want to automatically generate record_util.ml, but we must ensure backwards
compatibility, and the only way to do that is to exhaustively test all the old
values in a unit test.

This test won't need to be updated when new enum values are introduced: we'll
use the automatically generated ones for those already.

The `old*` files were created using the following command:
```
cp ocaml/xapi-cli-server/record_util.ml ocaml/tests/record_util/old_record_util.ml && dune build @check --profile=release && grep 'let all_' _build/o\default/ocaml/xapi-types/aPI.ml >|ocaml/tests/record_util/old_enum_all.ml && dune fmt --auto-promote
```

Signed-off-by: Edwin Török <[email protected]>

ocaml/tests/record_util/dune

@@ -0,0 +1,4 @@
+(test
+	(name test_record_util)
+	(libraries alcotest xapi_cli_server rpclib.core xapi_consts xapi_types astring fmt)
+)

ocaml/tests/record_util/old_enum_all.ml

@@ -0,0 +1,291 @@
+let all_certificate_type = [`ca; `host; `host_internal]
+
+let all_cluster_host_operation = [`enable; `disable; `destroy]
+
+let all_cluster_operation = [`add; `remove; `enable; `disable; `destroy]
+
+let all_vusb_operations = [`attach; `plug; `unplug]
+
+let all_sdn_controller_protocol = [`ssl; `pssl]
+
+let all_pvs_proxy_status =
+  [
+    `stopped
+  ; `initialised
+  ; `caching
+  ; `incompatible_write_cache_mode
+  ; `incompatible_protocol_version
+  ]
+
+let all_vgpu_type_implementation =
+  [`passthrough; `nvidia; `nvidia_sriov; `gvt_g; `mxgpu]
+
+let all_allocation_algorithm = [`breadth_first; `depth_first]
+
+let all_pgpu_dom0_access =
+  [`enabled; `disable_on_reboot; `disabled; `enable_on_reboot]
+
+let all_sriov_configuration_mode = [`sysfs; `modprobe; `manual; `unknown]
+
+let all_tunnel_protocol = [`gre; `vxlan]
+
+let all_cls =
+  [`VM; `Host; `SR; `Pool; `VMPP; `VMSS; `PVS_proxy; `VDI; `Certificate]
+
+let all_console_protocol = [`vt100; `rfb; `rdp]
+
+let all_persistence_backend = [`xapi]
+
+let all_vtpm_operations = [`destroy]
+
+let all_vbd_mode = [`RO; `RW]
+
+let all_vbd_type = [`CD; `Disk; `Floppy]
+
+let all_vbd_operations =
+  [`attach; `eject; `insert; `plug; `unplug; `unplug_force; `pause; `unpause]
+
+let all_on_boot = [`reset; `persist]
+
+let all_vdi_type =
+  [
+    `system
+  ; `user
+  ; `ephemeral
+  ; `suspend
+  ; `crashdump
+  ; `ha_statefile
+  ; `metadata
+  ; `redo_log
+  ; `rrd
+  ; `pvs_cache
+  ; `cbt_metadata
+  ]
+
+let all_vdi_operations =
+  [
+    `clone
+  ; `copy
+  ; `resize
+  ; `resize_online
+  ; `snapshot
+  ; `mirror
+  ; `destroy
+  ; `forget
+  ; `update
+  ; `force_unlock
+  ; `generate_config
+  ; `enable_cbt
+  ; `disable_cbt
+  ; `data_destroy
+  ; `list_changed_blocks
+  ; `set_on_boot
+  ; `blocked
+  ]
+
+let all_storage_operations =
+  [
+    `scan
+  ; `destroy
+  ; `forget
+  ; `plug
+  ; `unplug
+  ; `update
+  ; `vdi_create
+  ; `vdi_introduce
+  ; `vdi_destroy
+  ; `vdi_resize
+  ; `vdi_clone
+  ; `vdi_snapshot
+  ; `vdi_mirror
+  ; `vdi_enable_cbt
+  ; `vdi_disable_cbt
+  ; `vdi_data_destroy
+  ; `vdi_list_changed_blocks
+  ; `vdi_set_on_boot
+  ; `pbd_create
+  ; `pbd_destroy
+  ]
+
+let all_bond_mode = [`balanceslb; `activebackup; `lacp]
+
+let all_primary_address_type = [`IPv4; `IPv6]
+
+let all_ipv6_configuration_mode = [`None; `DHCP; `Static; `Autoconf]
+
+let all_ip_configuration_mode = [`None; `DHCP; `Static]
+
+let all_pif_igmp_status = [`enabled; `disabled; `unknown]
+
+let all_vif_ipv6_configuration_mode = [`None; `Static]
+
+let all_vif_ipv4_configuration_mode = [`None; `Static]
+
+let all_vif_locking_mode = [`network_default; `locked; `unlocked; `disabled]
+
+let all_vif_operations = [`attach; `plug; `unplug]
+
+let all_network_purpose = [`nbd; `insecure_nbd]
+
+let all_network_default_locking_mode = [`unlocked; `disabled]
+
+let all_network_operations = [`attaching]
+
+let all_host_numa_affinity_policy = [`any; `best_effort; `default_policy]
+
+let all_host_sched_gran = [`core; `cpu; `socket]
+
+let all_latest_synced_updates_applied_state = [`yes; `no; `unknown]
+
+let all_update_guidances =
+  [
+    `reboot_host
+  ; `reboot_host_on_livepatch_failure
+  ; `restart_toolstack
+  ; `restart_device_model
+  ]
+
+let all_host_display =
+  [`enabled; `disable_on_reboot; `disabled; `enable_on_reboot]
+
+let all_host_allowed_operations =
+  [
+    `provision
+  ; `evacuate
+  ; `shutdown
+  ; `reboot
+  ; `power_on
+  ; `vm_start
+  ; `vm_resume
+  ; `vm_migrate
+  ; `apply_updates
+  ]
+
+let all_vm_appliance_operation =
+  [`start; `clean_shutdown; `hard_shutdown; `shutdown]
+
+let all_vmss_type = [`snapshot; `checkpoint; `snapshot_with_quiesce]
+
+let all_vmss_frequency = [`hourly; `daily; `weekly]
+
+let all_vmpp_archive_target_type = [`none; `cifs; `nfs]
+
+let all_vmpp_archive_frequency = [`never; `always_after_backup; `daily; `weekly]
+
+let all_vmpp_backup_frequency = [`hourly; `daily; `weekly]
+
+let all_vmpp_backup_type = [`snapshot; `checkpoint]
+
+let all_tristate_type = [`yes; `no; `unspecified]
+
+let all_domain_type = [`hvm; `pv; `pv_in_pvh; `pvh; `unspecified]
+
+let all_on_crash_behaviour =
+  [
+    `destroy
+  ; `coredump_and_destroy
+  ; `restart
+  ; `coredump_and_restart
+  ; `preserve
+  ; `rename_restart
+  ]
+
+let all_vm_operations =
+  [
+    `snapshot
+  ; `clone
+  ; `copy
+  ; `create_template
+  ; `revert
+  ; `checkpoint
+  ; `snapshot_with_quiesce
+  ; `provision
+  ; `start
+  ; `start_on
+  ; `pause
+  ; `unpause
+  ; `clean_shutdown
+  ; `clean_reboot
+  ; `hard_shutdown
+  ; `power_state_reset
+  ; `hard_reboot
+  ; `suspend
+  ; `csvm
+  ; `resume
+  ; `resume_on
+  ; `pool_migrate
+  ; `migrate_send
+  ; `get_boot_record
+  ; `send_sysrq
+  ; `send_trigger
+  ; `query_services
+  ; `shutdown
+  ; `call_plugin
+  ; `changing_memory_live
+  ; `awaiting_memory_live
+  ; `changing_dynamic_range
+  ; `changing_static_range
+  ; `changing_memory_limits
+  ; `changing_shadow_memory
+  ; `changing_shadow_memory_live
+  ; `changing_VCPUs
+  ; `changing_VCPUs_live
+  ; `changing_NVRAM
+  ; `assert_operation_valid
+  ; `data_source_op
+  ; `update_allowed_operations
+  ; `make_into_template
+  ; `import
+  ; `export
+  ; `metadata_export
+  ; `reverting
+  ; `destroy
+  ; `create_vtpm
+  ]
+
+let all_on_normal_exit = [`destroy; `restart]
+
+let all_on_softreboot_behavior = [`soft_reboot; `destroy; `restart; `preserve]
+
+let all_vm_power_state = [`Halted; `Paused; `Running; `Suspended]
+
+let all_update_after_apply_guidance =
+  [`restartHVM; `restartPV; `restartHost; `restartXAPI]
+
+let all_after_apply_guidance =
+  [`restartHVM; `restartPV; `restartHost; `restartXAPI]
+
+let all_update_sync_frequency = [`daily; `weekly]
+
+let all_telemetry_frequency = [`daily; `weekly; `monthly]
+
+let all_pool_allowed_operations =
+  [
+    `ha_enable
+  ; `ha_disable
+  ; `cluster_create
+  ; `designate_new_master
+  ; `configure_repositories
+  ; `sync_updates
+  ; `get_updates
+  ; `apply_updates
+  ; `tls_verification_enable
+  ; `cert_refresh
+  ; `exchange_certificates_on_join
+  ; `exchange_ca_certificates_on_join
+  ; `copy_primary_host_certs
+  ]
+
+let all_task_status_type =
+  [`pending; `success; `failure; `cancelling; `cancelled]
+
+let all_task_allowed_operations = [`cancel; `destroy]
+
+let all_hello_return = [`ok; `unknown_host; `cannot_talk_back]
+
+let all_livepatch_status =
+  [`ok_livepatch_complete; `ok_livepatch_incomplete; `ok]
+
+let all_sr_health = [`healthy; `recovering]
+
+let all_event_operation = [`add; `del; `_mod]