Terraform Test Command Builder

The Terraform 1.6+ test framework lets you write infrastructure tests in HCL and run them against real or mocked providers, turning "does this module work" into an automated, repeatable check that runs on every pull request. The Test Command Builder assembles the correct terraform test invocation with the filter, run, verbose, junit and json flags so you never have to recall the exact syntax or the order of arguments.

Add variables, set parallelism and a timeout, choose machine-readable output, and get a ready-to-run command you can paste into a terminal or a pipeline. The builder validates every numeric option before assembling anything, so a typo in a duration never reaches a real run, and it helps teams standardise how tests are launched across many repositories. Combined with mocked providers, the same command can validate module logic without provisioning real infrastructure.

Everything runs locally in your browser; no command is executed and nothing is uploaded, so you can experiment safely with different flag combinations before committing them to CI. The generated command is plain text you remain in full control of, and you can review it line by line before trusting it in automation.

• All key flags - -filter, -run, -verbose, -junit-xml, -json, -var, -var-file, -parallelism, -timeout and -no-color, each wired to its own input.
• Filter by directory - limit execution to a single tests folder so local iterations stay fast and focused.
• Run by name - target only the tests matching a regular expression with -run for narrow, quick feedback.
• Parallelism control - tune -parallelism to speed up large suites or throttle them on small runners.
• Timeout safety - bound the whole run with -timeout such as 30m, 10s or 2h so a hung suite cannot block your pipeline.
• JUnit reporting - emit a -junit-xml report file that CI systems consume natively as test results.
• JSON output - switch to -json for machine-readable results that feed dashboards and custom tooling.
• Variable injection - pass -var key=value pairs and reference -var-file for bulk inputs shared across tests.
• Format validation - parallelism must be a positive integer and timeout a valid duration before output is produced.
• Mocked providers - pair with a mocked provider setup so tests validate logic without spending money on real resources.
• Copy and download - export the command as text or a ready shell script you can version control.

1. Choose a filter - optionally set -filter to a directory such as tests/ to scope the run to relevant files.
2. Name a subset - add a -run regular expression when you only want specific test names to execute.
3. Set parallelism - enter a positive integer for -parallelism, or leave it blank to use the Terraform default of ten.
4. Set a timeout - type a duration like 30m so a stuck suite fails fast instead of hanging the job.
5. Pick outputs - toggle -verbose for detail, -json for machines, and enter a -junit-xml path for CI reports.
6. Add variables - supply comma-separated -var key=value pairs or point at a -var-file for shared configuration.
7. Build the command - press "Build command" to validate and assemble the final, correctly ordered string.
8. Export it - Copy the command or Download it as a shell script you can run anywhere.
9. Wire into CI - paste the downloaded script into your pipeline so the same command runs on every commit.

Example - CI smoke test. filter=tests/, parallelism=10, timeout=30m, junit-xml=report.xml and verbose produce: terraform test -filter=tests/ -parallelism=10 -timeout=30m -junit-xml=report.xml -verbose. A CI job runs exactly that and uploads report.xml as a test artifact.

Example - quick local check. With only -run=^create_ and -json, the builder emits terraform test -run=^create_ -json for fast feedback in a terminal without noise.

Example - var file. Adding -var-file=ci.tfvars yields terraform test -var-file=ci.tfvars so secrets and environment data stay outside the command line history.

• Correct syntax - flags are assembled in the right order with no manual typos to debug.
• CI ready - JUnit and JSON outputs drop straight into pipelines and dashboards with zero glue code.
• Safe experimentation - nothing executes; you can try combinations without any side effects.
• Validated inputs - bad parallelism or timeout values are caught before you trust the command.
• Reusable export - download a shell script once and reuse it consistently across environments.
• Private - the entire build happens in your browser with no network calls.
• Standardised runs - every engineer and job uses the identical flag set, removing drift between machines.