Stuber fails to match stub when input includes templates

[rez1dent3]

Hello,

I started rewriting grpctestify in Rust and discovered some interesting behavior in the original Bash version — it seems to have a race condition.

As a result, I’m seeing inconsistent test outcomes between the old and the new implementations.

Steps to reproduce:

$ go run main.go examples -s examples 
$ grpctestify examples          # <- old version passes successfully
$ grpctestify-rust examples     # <- new version fails on one test

The failing test in the Rust version:

❌ Failed Tests:
   • examples/projects/identifier/case_success_strict_ordered.gctf (6042ms)

However, if I run that specific test directly using the old Bash version:

$ grpctestify examples/projects/identifier/case_success_strict_ordered.gctf

It fails as well:

❌ Failed Tests:
   • examples/projects/identifier/case_success_strict_ordered.gctf (176ms)

So the interesting case is that:

• Running the full test suite with the old version passes.
• Running the same specific test individually with the old version fails.
• The Rust version fails consistently when running the full suite.

This suggests a race condition or hidden dependency between tests in the original Bash implementation.

[rez1dent3]

$ grpctestify-rust /tmp/gp/examples/

ℹ️  INFO [01:52:32]: Running 101 test(s) in parallel (jobs: 8)...
.........................................E......................E....................................
════════════════════════════════════════════════════════════════════════════════
❌ FAILED (2 failed, 99 passed in 88ms)
────────────────────────────────────────────────────────────────────────────────
📊 Execution Statistics:
   • Total tests: 101
   • Passed: 99
   • Failed: 2
   • Skipped: 0
   • Duration: 88ms
   • Average per test: 1ms
   • gRPC: total 87ms, avg 1ms per call
   • Overhead: 1ms total, avg 0ms per test
   • Mode: Parallel (8 threads)
   • Success rate: 98% (99/101 executed)
   • Performance: 1ms/test
────────────────────────────────────────────────────────────────────────────────
❌ Failed Tests:
   • /tmp/gp/examples/projects/identifier/case_success_strict_ordered.gctf (2ms)
   • /tmp/gp/examples/projects/unitconverter/convert_length/case_stub_not_found.gctf (4ms)
🔧 Environment:
   • gRPC Address: localhost:4770
   • Sort Mode: path
   • Dry Run: Disabled (real gRPC calls)
✨ No warnings detected
════════════════════════════════════════════════════════════════════════════════

[rez1dent3]

$ grpctestify /tmp/gp/examples/ 
ℹ️  INFO [01:53:56]: Running 101 test(s) in parallel (jobs: 8)...
................................................................................
.....................

════════════════════════════════════════════════════════════════════════════════
✅ PASSED (101 passed in 10152ms)
────────────────────────────────────────────────────────────────────────────────
📊 Execution Statistics:
   • Total tests: 101
   • Passed: 101
   • Failed: 0
   • Skipped: 0
   • Duration: 10152ms
   • Average per test: 100ms
   • gRPC: total 2844ms, avg 28ms per call
   • Overhead: 7308ms total, avg 72ms per test
   • Mode: Parallel (8 threads)
   • Success rate: 100% (101/101 executed)
   • Performance: ✅ Good (100ms/test)
────────────────────────────────────────────────────────────────────────────────
🔧 Environment:
   • gRPC Address: localhost:4770
   • Sort Mode: path
   • Dry Run: Disabled (real gRPC calls)
✨ No warnings detected
════════════════════════════════════════════════════════════════════════════════

[rez1dent3]

Analysis Report for /tmp/gp/examples/projects/identifier/case_success_strict_ordered.gctf:
============================================================

[Parse Profiling]
  File size: 741 bytes
  Total lines: 26
  Section headers found: 3
  Parse total: 11.235ms (read: 0.273ms, parse-sections: 10.052ms, build-doc: 0.315ms)
  Validation: 0.287ms
  Validation result: OK

[AST Overview]
   1. ENDPOINT         lines   0-  3 | single     | raw=53 bytes
   2. REQUEST          lines   3- 20 | json       | raw=535 bytes
   3. RESPONSE         lines  20- 26 | json       | raw=100 bytes

[Structure]

[Variables]
  No variables defined or used.

[Logic Flow]
  - Standard Unary Call

[Summary]
  ✅ No issues found. Test appears structurally valid.

[rez1dent3]

Analysis Report for /tmp/gp/examples/projects/unitconverter/convert_length/case_stub_not_found.gctf:
============================================================

[Parse Profiling]
  File size: 417 bytes
  Total lines: 14
  Section headers found: 3
  Parse total: 9.428ms (read: 0.196ms, parse-sections: 8.497ms, build-doc: 0.250ms)
  Validation: 0.190ms
  Validation result: OK

[AST Overview]
   1. ENDPOINT         lines   0-  3 | single     | raw=53 bytes
   2. REQUEST          lines   3-  9 | json       | raw=42 bytes
   3. ERROR            lines   9- 14 | json       | raw=272 bytes

[Structure]

[Variables]
  No variables defined or used.

[Logic Flow]
  - Standard Unary Call

[Summary]
  ✅ No issues found. Test appears structurally valid.