test: random region selection in test (#317)

Author: Aayush-Abhyarthi

tests/pr_test.go

@@ -7,6 +7,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 	"github.com/terraform-ibm-modules/ibmcloud-terratest-wrapper/common"
 	"github.com/terraform-ibm-modules/ibmcloud-terratest-wrapper/testhelper"
 	"github.com/terraform-ibm-modules/ibmcloud-terratest-wrapper/testschematic"
@@ -164,11 +165,21 @@ func TestRunBuildExampleInSchematics(t *testing.T) {
 		DeleteWorkspaceOnFail:  false,
 		WaitJobCompleteMinutes: 60,
 	})
+
+	// Verify ibmcloud_api_key variable is set
+	checkVariable := "TF_VAR_ibmcloud_api_key"
+	val, present := os.LookupEnv(checkVariable)
+	require.True(t, present, checkVariable+" environment variable not set")
+	require.NotEqual(t, "", val, checkVariable+" environment variable is empty")
+
+	// Programmatically determine region to use based on availability
+	region, _ := testhelper.GetBestVpcRegion(val, "../common-dev-assets/common-go-assets/cloudinfo-region-vpc-gen2-prefs.yaml", "eu-de")
+
 	options.TerraformVars = []testschematic.TestSchematicTerraformVar{
 		{Name: "ibmcloud_api_key", Value: options.RequiredEnvironmentVars["TF_VAR_ibmcloud_api_key"], DataType: "string", Secure: true},
 		{Name: "resource_group", Value: options.ResourceGroup, DataType: "string"},
 		{Name: "prefix", Value: options.Prefix + "-b", DataType: "string"},
-		{Name: "region", Value: options.Region, DataType: "string"},
+		{Name: "region", Value: region, DataType: "string"},
 	}
 
 	err := options.RunSchematicTest()