Output State Checks
The terraform-plugin-testing module provides a package statecheck with built-in output value state checks for common use-cases:
| Check | Description |
|---|---|
ExpectKnownOutputValue | Asserts the output at the specified address has the specified type, and value. |
ExpectKnownOutputValueAtPath | Asserts the output at the specified address, and path has the specified type, and value. |
ExpectKnownOutputValue State Check
The statecheck.ExpectKnownOutputValue(address, value) state check verifies that a specific output value has a known type, and value.
Refer to Known Value Checks for details, and examples of the available knownvalue.Check types that can be used with the ExpectKnownOutputValue state check.
package example_test import ( "testing" "github.com/hashicorp/terraform-plugin-testing/helper/resource" "github.com/hashicorp/terraform-plugin-testing/knownvalue" "github.com/hashicorp/terraform-plugin-testing/statecheck" "github.com/hashicorp/terraform-plugin-testing/tfversion") func TestExpectKnownOutputValue_CheckState_Bool(t *testing.T) { t.Parallel() resource.UnitTest(t, resource.TestCase{ TerraformVersionChecks: []tfversion.TerraformVersionCheck{ tfversion.SkipBelow(tfversion.Version1_8_0), }, // Provider definition omitted. Steps: []resource.TestStep{ { Config: ` output "test" { value = provider::example::bool(true) }`, ConfigStateChecks: []statecheck.StateCheck{ statecheck.ExpectKnownOutputValue( "test", knownvalue.Bool(true), ), }, }, }, })}ExpectKnownOutputValueAtPath State Check
The statecheck.ExpectKnownOutputValueAtPath(address, path, value) state check verifies that a specific output value at a defined path has a known type, and value.
Refer to Known Value Checks for details, and examples of the available knownvalue.Check types that can be used with the ExpectKnownOutputValueAtPath state check.
package example_test import ( "testing" "github.com/hashicorp/terraform-plugin-testing/helper/resource" "github.com/hashicorp/terraform-plugin-testing/knownvalue" "github.com/hashicorp/terraform-plugin-testing/statecheck" "github.com/hashicorp/terraform-plugin-testing/tfjsonpath") func TestExpectKnownOutputValueAtPath_CheckState_Bool(t *testing.T) { t.Parallel() resource.Test(t, resource.TestCase{ // Provider definition omitted. Steps: []resource.TestStep{ { // Example resource containing a computed boolean attribute named "computed_attribute" Config: `resource "test_resource" "one" {} // Generally, it is not necessary to use an output to test a resource attribute, // the resource attribute should be tested directly instead. This is only shown as // an example. // Generally, it is not necessary to use an output to test a resource attribute, // the resource attribute should be tested directly instead, by inspecting the // value of the resource attribute. For instance: // // ConfigStateChecks: []statecheck.StateCheck{ // statecheck.ExpectKnownValue( // "test_resource.one", // tfjsonpath.New("computed_attribute"), // knownvalue.Bool(true), // ), // }, // // This is only shown as an example. output test_resource_one_output { value = test_resource.one }`, ConfigStateChecks: []statecheck.StateCheck{ statecheck.ExpectKnownOutputValueAtPath( "test_resource_one_output", tfjsonpath.New("computed_attribute"), knownvalue.Bool(true), ), }, }, }, })}