feat: singleTest mage target for each integration test package (#8691)

* feat: support running a single test for serverless and resource leak integration tests

* doc: update test-framework-dev-guide.md to include the latest mage targets

(cherry picked from commit 2ec9992)

Author: pkoutsovasilis

docs/test-framework-dev-guide.md

@@ -64,21 +64,41 @@ Go to https://docker-auth.elastic.co/ and authenticate with Okta to receive your
 
 The test are run with mage using the `integration` namespace:
 
-- `mage integration:test` to execute all tests under the `testing/integration`
+#### ESS oriented tests
+
+- `mage integration:test` to execute all tests under the `testing/integration/ess`
   folder. All tests are executed on remote VMs, including those that set `Local: true`.
 
 - `mage integration:local [testName|all]` to execute only those tests under the
-  `testing/integration` folder that set `Local: true`. It'll run all the tests if
+  `testing/integration/ess` folder that set `Local: true`. It'll run all the tests if
   `all` is passed as argument, or it'll pass `[testName]` to `go test` as
   `--run=[testName]`. These tests are executed on your local machine.
 
-- `mage integration:single [testName]` to execute a single test under the `testing/integration` folder. Only the selected test will be executed on remote VMs.
+- `mage integration:single [testName]` to execute a single test under the `testing/integration/ess` folder. Only the selected test will be executed on remote VMs.
+
+- `mage integration:matrix` to run all tests under the `testing/integration/ess` folder on the complete matrix of supported operating systems and architectures of the Elastic Agent.
+
+#### Kubernetes oriented tests
+
+- `mage integration:testKubernetes` to run kubernetes tests under the `testing/integration/k8s` folder for the default image on the default version of kubernetes (all previous commands will not run any kubernetes tests).
+
+- `mage integration:testKubernetesMatrix` to run a matrix of kubernetes tests under the `testing/integration/k8s` folder for all image types and supported versions of kubernetes.
+
+- `mage integration:testKubernetesSingle [testName|all]` to execute a single test under the `testing/integration/k8s` folder. Only the selected test will be executed.
+
+#### Serverless oriented tests
+
+- `mage integration:testServerless` to execute all tests under the `testing/integration/serverless` folder. All tests are executed on remote VMs, including those that set `Local: true`.
+
+- `mage integration:testServerlessSingle [testName|all]` to execute a single test under the `testing/integration/serverless` folder. Only the selected test will be executed on remote VMs.
+
+#### Resource leaks tests
 
-- `mage integration:matrix` to run all tests on the complete matrix of supported operating systems and architectures of the Elastic Agent.
+- `mage integration:testForResourceLeaks` to execute all tests under the `testing/integration/leak` folder. All tests are executed on remote VMs.
 
-- `mage integration:testKubernetes` to run kubernetes tests for the default image on the default version of kubernetes (all previous commands will not run any kubernetes tests).
+- `mage integration:testForResourceLeaksSingle [testName|all]` to execute a single test under the `testing/integration/leak` folder. Only the selected test will be executed on remote VMs.
 
-- `mage integration:testKubernetesMatrix` to run a matrix of kubernetes tests for all image types and supported versions of kubernetes.
+You can list all available mage targets by running `mage -l`
 
 #### Selecting specific platform
 

magefile.go

@@ -2090,46 +2090,47 @@ func (Integration) Single(ctx context.Context, testName string) error {
 }
 
 // TestServerless runs the integration tests defined in testing/integration/serverless
-func (Integration) TestServerless(ctx context.Context) error {
+func (i Integration) TestServerless(ctx context.Context) error {
+	return i.testServerless(ctx, false, "")
+}
+
+// TestServerlessSingle runs a single integration test defined in testing/integration/serverless
+func (i Integration) TestServerlessSingle(ctx context.Context, testName string) error {
+	return i.testServerless(ctx, false, testName)
+}
+
+func (i Integration) testServerless(ctx context.Context, matrix bool, testName string) error {
 	err := os.Setenv("STACK_PROVISIONER", "serverless")
 	if err != nil {
 		return fmt.Errorf("error setting serverless stack env var: %w", err)
 	}
 
-	return integRunner(ctx, "testing/integration/serverless", false, "")
+	return integRunner(ctx, "testing/integration/serverless", matrix, testName)
 }
 
-// TestKubernetes runs kubernetes integration tests
-func (Integration) TestKubernetes(ctx context.Context) error {
-	mg.Deps(Integration.BuildKubernetesTestData)
-	// invoke integration tests
-	if err := os.Setenv("TEST_GROUPS", "kubernetes"); err != nil {
-		return err
-	}
-
-	return integRunner(ctx, "testing/integration/k8s", false, "")
+// TestKubernetes runs the integration tests defined in testing/integration/k8s
+func (i Integration) TestKubernetes(ctx context.Context) error {
+	return i.testKubernetes(ctx, false, "")
 }
 
-// TestKubernetesSingle runs single k8s integration test
-func (Integration) TestKubernetesSingle(ctx context.Context, testName string) error {
-	mg.Deps(Integration.BuildKubernetesTestData)
-	// invoke integration tests
-	if err := os.Setenv("TEST_GROUPS", "kubernetes"); err != nil {
-		return err
-	}
+// TestKubernetesSingle runs a single integration test defined in testing/integration/k8s
+func (i Integration) TestKubernetesSingle(ctx context.Context, testName string) error {
+	return i.testKubernetes(ctx, false, testName)
+}
 
-	return integRunner(ctx, "testing/integration/k8s", false, testName)
+// TestKubernetesMatrix runs a matrix of integration tests defined in testing/integration/k8s
+func (i Integration) TestKubernetesMatrix(ctx context.Context) error {
+	return i.testKubernetes(ctx, true, "")
 }
 
-// TestKubernetesMatrix runs a matrix of kubernetes integration tests
-func (Integration) TestKubernetesMatrix(ctx context.Context) error {
+func (i Integration) testKubernetes(ctx context.Context, matrix bool, testName string) error {
 	mg.Deps(Integration.BuildKubernetesTestData)
 	// invoke integration tests
 	if err := os.Setenv("TEST_GROUPS", "kubernetes"); err != nil {
 		return err
 	}
 
-	return integRunner(ctx, "testing/integration/k8s", true, "")
+	return integRunner(ctx, "testing/integration/k8s", matrix, testName)
 }
 
 // BuildKubernetesTestData builds the test data required to run k8s integration tests
@@ -2663,9 +2664,18 @@ func (Integration) TestBeatServerless(ctx context.Context, beatname string) erro
 	return integRunner(ctx, "testing/integration/beats/serverless", false, "TestBeatsServerless")
 }
 
-// TestForResourceLeaks runs tests that check for resource leaks
-func (Integration) TestForResourceLeaks(ctx context.Context) error {
-	return integRunner(ctx, "testing/integration/leak", false, "TestLongRunningAgentForLeaks")
+// TestForResourceLeaks runs the integration tests defined in testing/integration/leak
+func (i Integration) TestForResourceLeaks(ctx context.Context) error {
+	return i.testForResourceLeaks(ctx, false, "")
+}
+
+// TestForResourceLeaksSingle runs a single integration test defined in testing/integration/leak
+func (i Integration) TestForResourceLeaksSingle(ctx context.Context, testName string) error {
+	return i.testForResourceLeaks(ctx, false, testName)
+}
+
+func (i Integration) testForResourceLeaks(ctx context.Context, matrix bool, testName string) error {
+	return integRunner(ctx, "testing/integration/leak", matrix, testName)
 }
 
 // TestOnRemote shouldn't be called locally (called on remote host to perform testing)