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data_source_google_compute_addresses_test.go
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data_source_google_compute_addresses_test.go
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package google
import (
"fmt"
"testing"
"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
"github.com/hashicorp/terraform-plugin-sdk/v2/terraform"
)
func TestAccDataSourceComputeAddresses(t *testing.T) {
t.Parallel()
addressName := fmt.Sprintf("tf-test-%s", randString(t, 10))
region := "europe-west8"
region_bis := "asia-east1"
dsName := "regional_addresses"
dsFullName := fmt.Sprintf("data.google_compute_addresses.%s", dsName)
dsAllName := "all_addresses"
dsAllFullName := fmt.Sprintf("data.google_compute_addresses.%s", dsAllName)
vcrTest(t, resource.TestCase{
PreCheck: func() { testAccPreCheck(t) },
Providers: testAccProviders,
Steps: []resource.TestStep{
{
Config: testAccDataSourceComputeAddressesConfig(addressName, region, region_bis),
Check: resource.ComposeTestCheckFunc(
testAccDataSourceComputeAddressesRegionSpecificCheck(t, addressName, dsFullName, region),
testAccDataSourceComputeAddressesAllRegionsCheck(t, addressName, dsAllFullName, region, region_bis),
),
},
},
})
}
func testAccDataSourceComputeAddressesAllRegionsCheck(t *testing.T, address_name string, data_source_name string, expected_region string, expected_region_bis string) resource.TestCheckFunc {
return func(s *terraform.State) error {
expected_addresses := buildAddressesList(3, address_name, expected_region)
expected_addresses = append(expected_addresses, buildAddressesList(3, address_name, expected_region_bis)...)
return testDataSourceAdressContains(s, data_source_name, expected_addresses)
}
}
func testAccDataSourceComputeAddressesRegionSpecificCheck(t *testing.T, address_name string, data_source_name string, expected_region string) resource.TestCheckFunc {
return func(s *terraform.State) error {
expected_addresses := buildAddressesList(3, address_name, expected_region)
return testDataSourceAdressContains(s, data_source_name, expected_addresses)
}
}
func testAccDataSourceComputeAddressesConfig(addressName, region, region_bis string) string {
return fmt.Sprintf(`
locals {
region = "%s"
region_bis = "%s"
address_name = "%s"
}
resource "google_compute_address" "address" {
count = 3
region = local.region
name = "${local.address_name}-${local.region}-${count.index}"
}
resource "google_compute_address" "address_region_bis" {
count = 3
region = local.region_bis
name = "${local.address_name}-${local.region_bis}-${count.index}"
}
data "google_compute_addresses" "regional_addresses" {
filter = "name:${local.address_name}-*"
depends_on = [google_compute_address.address]
region = local.region
}
data "google_compute_addresses" "all_addresses" {
filter = "name:${local.address_name}-*"
depends_on = [google_compute_address.address, google_compute_address.address_region_bis]
}
`, region, region_bis, addressName)
}
type expectedAddress struct {
name string
region string
}
func (r expectedAddress) checkAddressMatch(index int, attrs map[string]string) (bool, error) {
map_name := fmt.Sprintf("addresses.%d.name", index)
address_name := attrs[map_name]
if address_name != r.name {
return false, nil
}
map_region := fmt.Sprintf("addresses.%d.region", index)
region, found := attrs[map_region]
if !found {
return false, fmt.Errorf("%s doesn't exists", map_region)
}
if region != r.region {
return false, fmt.Errorf("Unexpected region: got %s expected %s", region, r.region)
}
return true, nil
}
func testDataSourceAdressContains(state *terraform.State, data_source_name string, addresses []expectedAddress) error {
ds, ok := state.RootModule().Resources[data_source_name]
if !ok {
return fmt.Errorf("root module has no resource called %s", data_source_name)
}
ds_attr := ds.Primary.Attributes
addresses_length := len(addresses)
if ds_attr["addresses.#"] != fmt.Sprintf("%d", addresses_length) {
return fmt.Errorf("addresses.# is not equal to %d", addresses_length)
}
for address_index := 0; address_index < addresses_length; address_index++ {
has_match := false
for j := 0; j < len(addresses); j++ {
match, err := addresses[j].checkAddressMatch(address_index, ds_attr)
if err != nil {
return err
} else {
if match {
has_match = true
addresses = removeExpectedAddress(addresses, j)
break
}
}
}
if !has_match {
return fmt.Errorf("unexpected address at index %d", address_index) // TODO improve
}
}
if len(addresses) != 0 {
return fmt.Errorf("%+v not found in data source", addresses)
}
return nil
}
func buildAddressesList(numberofAddresses int, addressName string, region string) []expectedAddress {
var addresses []expectedAddress
for i := 0; i < numberofAddresses; i++ {
addresses = append(addresses, expectedAddress{
name: fmt.Sprintf("%s-%s-%d", addressName, region, i),
region: region,
})
}
return addresses
}
func removeExpectedAddress(s []expectedAddress, i int) []expectedAddress {
s[i] = s[len(s)-1]
return s[:len(s)-1]
}