Having issue with provider configuration in acceptance test

hi there,

I am writing my first acceptance test for a custom TF provider and I am stuck with the provider configuration. I have configured all the environment variables for the provider inputs, however, when running test I am getting errors, e.g.

Error: Missing required argument
The argument "host" is required, but was not set.

Here is the test code I am trying to run

func TestAccLDAPOU_basic(t *testing.T) {
	resource.Test(t, resource.TestCase{
		PreCheck:  func() { testAccPreCheck(t) },
		Providers: testAccProviders,
		Steps: []resource.TestStep{
			{
				Config: testAccCheckLDAOUConfigBasic,
				Check: resource.ComposeTestCheckFunc(
					testAccCheckLDAPOUExists("ldap_ou.test"),
				),
			},
		},
	})
}

func testAccCheckLDAPOUDestroy(s *terraform.State) error {
	c := testAccProvider.Meta().(*goldap.Client)

	for _, rs := range s.RootModule().Resources {
		if rs.Type != "ldap_ou" {
			continue
		}

		ouID := rs.Primary.ID

		err := c.DeleteOU(ouID)
		if err != nil {
			return err
		}
	}

	return nil
}

func testAccCheckLDAPOUExists(n string) resource.TestCheckFunc {
	return func(s *terraform.State) error {
		rs, ok := s.RootModule().Resources[n]

		if !ok {
			return fmt.Errorf("Not found: %s", n)
		}

		if rs.Primary.ID == "" {
			return fmt.Errorf("No OrderID set")
		}

		return nil
	}
}

const testAccCheckLDAOUConfigBasic = `
resource "ldap_ou" "test" {
  path = "OU=LDAP-Test,DC=example,DC=org"
  name = "test_ou"
  description = "Something I need to test"
}
`

and here is the provider_test.go content

var testAccProviders map[string]*schema.Provider
var testAccProvider *schema.Provider

func init() {
	testAccProvider = Provider()
	testAccProviders = map[string]*schema.Provider{
		"ldap": testAccProvider,
	}
}

func TestProvider(t *testing.T) {
	if err := Provider().InternalValidate(); err != nil {
		t.Fatalf("err: %s", err)
	}
}

func testAccPreCheck(t *testing.T) {
	if v := os.Getenv("host"); v == "" {
		t.Fatal("host must be set for acceptance tests")
	}
	if v := os.Getenv("port"); v == "" {
		t.Fatal("port must be set for acceptance tests")
	}
	if v := os.Getenv("bind_user"); v == "" {
		t.Fatal("bind_user must be set for acceptance tests")
	}
	if v := os.Getenv("bind_password"); v == "" {
		t.Fatal("bind_password must be set for acceptance tests")
	}
	if v := os.Getenv("schema_type"); v == "" {
		t.Fatal("schme_type must be set for acceptance tests")
	}

}

what am I missing?

apparently, I am an idiot and haven’t configured provider schema with DefaultFunc that grabs env variables.