grpctestify 1.6.2

gRPC testing utility written in Rust
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# Troubleshooting

Quick checklist for unexpected failures.

## Fast triage

1. Run `grpctestify check <file>` to validate syntax/sections.
2. Run the same file with `--verbose`.
3. Reduce concurrency (`--parallel 1`) if failures are flaky.
4. Check endpoint address/TLS settings.

## Connection problems

### Service unavailable

- Verify server is running
- Confirm `ADDRESS` value or `GRPCTESTIFY_ADDRESS`
- Check TLS settings if server requires TLS/mTLS

### Timeout errors

Use a higher timeout:

```bash
grpctestify test.gctf --timeout 60
```

For unstable endpoints, run with reduced parallelism to isolate load-related failures:

```bash
grpctestify tests/ --parallel 1 --verbose
```

## Test file problems

### JSON parse errors

- Validate JSON in `REQUEST` / `RESPONSE` / `ERROR`
- Remove trailing commas
- Ensure section markers are valid

### Missing required sections

- `ENDPOINT` is required
- At least one verification block is required: `RESPONSE`, `ERROR`, or `ASSERTS`
- `RESPONSE` and `ERROR` cannot appear in the same file
- `META` (if present) must be the first section and appear only once

### Unexpected section behavior

- Use `REQUEST_HEADERS` instead of legacy `HEADERS`
- Keep section markers exact: `--- SECTION_NAME ---`
- For inline options, use `key=value` when needed, or short boolean flags like `with_asserts`

## Assertion problems

### Expression fails

- Start with simple checks (`.status == "ok"`)
- Validate paths exist in actual response
- For metadata checks use `@header()` / `@trailer()`

### Type/format checks fail

- Verify values match expected format for `@timestamp`, `@url`, `@ip`, `@email`, `@uuid`
- Check raw response types with `inspect` output before writing strict assertions

## Debugging commands

```bash
# Verbose run
grpctestify test.gctf --verbose

# Execution preview
grpctestify test.gctf --dry-run --verbose

# Syntax check
grpctestify check test.gctf

# Inspect parsed structure
grpctestify inspect test.gctf --format json

# Explain execution plan and assertion scopes
grpctestify explain test.gctf
```

## Environment variables

- `GRPCTESTIFY_ADDRESS`
- `GRPCTESTIFY_COMPRESSION`
- `GRPCTESTIFY_TLS_CA_FILE`
- `GRPCTESTIFY_TLS_CERT_FILE`
- `GRPCTESTIFY_TLS_KEY_FILE`
- `GRPCTESTIFY_TLS_SERVER_NAME`