Integration testing strategies in Terraform - Step-by-Step Execution

Process Flow - Integration testing strategies

Write Terraform code

↓

Deploy infrastructure

↓

Run integration tests

↓

Check test results

↓

Confirm infra

↓

Repeat tests

Integration testing in Terraform means deploying real infrastructure and running tests to check if components work together correctly.

Execution Sample

Terraform

terraform init
terraform apply -auto-approve
run integration tests
terraform destroy -auto-approve

This sequence deploys infrastructure, runs tests to check integration, then cleans up resources.

Process Table

Step	Action	Terraform Command/Tool	Result	Next Step
1	Initialize Terraform	terraform init	Terraform ready to deploy	terraform apply
2	Deploy infrastructure	terraform apply -auto-approve	Resources created in cloud	Run integration tests
3	Run integration tests	custom test scripts	Tests check resource interaction	Check test results
4	Check test results	test output	Pass or Fail	If Pass: Confirm infra; If Fail: Fix code & retry
5	Confirm infrastructure	manual or automated check	Infrastructure works as expected	terraform destroy
6	Fix code & retry	edit Terraform code	Code updated	Repeat from terraform apply
7	Destroy infrastructure	terraform destroy -auto-approve	Resources removed	End

💡 Tests pass and infrastructure is confirmed, or code is fixed and tests rerun until success.

Status Tracker

Variable	Start	After Step 2	After Step 3	After Step 4	Final
Terraform State	empty	resources created	resources exist	test pass/fail recorded	resources destroyed
Test Status	not run	not run	running	pass or fail	completed

Key Moments - 3 Insights

Why do we need to deploy real infrastructure for integration testing?

Because integration tests check if different parts work together in a real environment, not just in code. See execution_table step 2 and 3.

What happens if tests fail after deployment?

You fix the Terraform code and rerun deployment and tests until they pass, as shown in execution_table steps 4 and 6.

Why destroy infrastructure after tests?

To avoid extra costs and keep the environment clean. This is step 7 in the execution_table.

Visual Quiz - 3 Questions

Look at the execution_table, what is the result after running 'terraform apply -auto-approve'?

A Terraform ready to deploy

B Resources created in cloud

C Resources removed

D Tests pass or fail

💡 Hint

Check Step 2 in the execution_table under Result column.

At which step do integration tests run according to the execution_table?

A Step 3

B Step 1

C Step 5

D Step 7

💡 Hint

Look at Step 3 in the execution_table under Action column.

If tests fail, what is the next action based on the execution flow?

A Destroy infrastructure immediately

B Confirm infrastructure works

C Fix code and retry deployment

D Skip tests and proceed

💡 Hint

See the branch after 'Check test results' in concept_flow and Step 6 in execution_table.

Concept Snapshot

Integration testing with Terraform:
1. Write Terraform code
2. Deploy real infrastructure (terraform apply)
3. Run tests to check resource interaction
4. Fix code if tests fail
5. Destroy infrastructure after tests
Key: Test real deployed resources, not just code.

Full Transcript

Integration testing strategies in Terraform involve deploying actual cloud resources using 'terraform apply', then running tests to verify that these resources work together correctly. If tests pass, the infrastructure is confirmed; if not, the Terraform code is fixed and redeployed. After testing, resources are destroyed to avoid costs. This cycle repeats until tests pass, ensuring reliable infrastructure integration.