feat(qa): targeted test command templates + full test discovery in project index

apps/backend/analysis/analyzers/service_analyzer.py

@@ -210,22 +210,47 @@ def _detect_dependencies(self) -> None:
             self.analysis["dependencies"] = deps[:20]
 
     def _detect_testing(self) -> None:
-        """Detect testing framework and configuration."""
-        if self._exists("package.json"):
-            pkg = self._read_json("package.json")
-            if pkg:
-                deps = {**pkg.get("dependencies", {}), **pkg.get("devDependencies", {})}
-                if "vitest" in deps:
-                    self.analysis["testing"] = "Vitest"
-                elif "jest" in deps:
-                    self.analysis["testing"] = "Jest"
-                if "@playwright/test" in deps:
-                    self.analysis["e2e_testing"] = "Playwright"
-                elif "cypress" in deps:
-                    self.analysis["e2e_testing"] = "Cypress"
-
-        elif self._exists("pytest.ini") or self._exists("pyproject.toml"):
-            self.analysis["testing"] = "pytest"
+        """Detect testing framework, commands, and configuration."""
+        # Full discovery across all supported ecosystems (JS, Python, JVM,
+        # .NET, C/C++, Rust, Go, Ruby, PHP, Elixir, Swift, Dart, ...)
+        try:
+            from analysis.test_discovery import TestDiscovery
+
+            discovery = TestDiscovery().discover(self.path)
+            unit_frameworks = [f.name for f in discovery.frameworks if f.type != "e2e"]
+            e2e_frameworks = [f.name for f in discovery.frameworks if f.type == "e2e"]
+
+            if unit_frameworks:
+                self.analysis["testing"] = unit_frameworks[0]
+            if e2e_frameworks:
+                self.analysis["e2e_testing"] = e2e_frameworks[0]
+            if discovery.test_command:
+                self.analysis["test_command"] = discovery.test_command
+            if discovery.coverage_command:
+                self.analysis["coverage_command"] = discovery.coverage_command
+            if discovery.targeted_command:
+                # Template with {target}: path for pytest/jest/go-style
+                # runners, test name/filter for mvn/gradle/dotnet/ctest
+                self.analysis["targeted_test_command"] = discovery.targeted_command
+        except ImportError:
+            # Fall back to the previous minimal detection
+            if self._exists("package.json"):
+                pkg = self._read_json("package.json")
+                if pkg:
+                    deps = {
+                        **pkg.get("dependencies", {}),
+                        **pkg.get("devDependencies", {}),
+                    }
+                    if "vitest" in deps:
+                        self.analysis["testing"] = "vitest"
+                    elif "jest" in deps:
+                        self.analysis["testing"] = "jest"
+                    if "@playwright/test" in deps:
+                        self.analysis["e2e_testing"] = "playwright"
+                    elif "cypress" in deps:
+                        self.analysis["e2e_testing"] = "cypress"
+            elif self._exists("pytest.ini") or self._exists("pyproject.toml"):
+                self.analysis["testing"] = "pytest"
 
         # Find test directory
         for test_dir in ["tests", "test", "__tests__", "spec"]:

apps/backend/analysis/test_discovery.py

@@ -71,6 +71,10 @@
         package_manager: Detected package manager
         has_tests: Whether any test files were found
         coverage_command: Command for coverage if available
+        targeted_command: Template to run a subset of tests; contains a
+            {target} placeholder (a path for path-based runners such as
+            pytest/jest/go, a test name/filter for filter-based runners
+            such as Maven/Gradle/dotnet/ctest)
     """
 
     __test__ = False  # Prevent pytest from collecting this as a test class
@@ -81,6 +85,7 @@
     package_manager: str = ""
     has_tests: bool = False
     coverage_command: str | None = None
+    targeted_command: str | None = None
 
 
 # =============================================================================
@@ -277,6 +282,44 @@
 }
 
 
+# Templates to run a subset of tests per framework. {target} is a path for
+# path-based runners and a test name/filter for filter-based runners.
+# Frameworks without a reliable targeted form are omitted.
+FRAMEWORK_TARGETED_COMMANDS: dict[str, str] = {
+    "jest": "npx jest {target}",
+    "vitest": "npx vitest run {target}",
+    "mocha": "npx mocha {target}",
+    "playwright": "npx playwright test {target}",
+    "cypress": "npx cypress run --spec {target}",
+    "pytest": "pytest {target}",
+    "unittest": "python -m unittest {target}",
+    "cargo_test": "cargo test {target}",
+    "go_test": "go test {target}",
+    "rspec": "bundle exec rspec {target}",
+    "maven": "mvn test -Dtest={target}",
+    "gradle": "gradle test --tests {target}",
+    "sbt": 'sbt "testOnly {target}"',
+    "dotnet_test": 'dotnet test --filter "{target}"',
+    "ctest": "ctest --test-dir build -R {target} --output-on-failure",
+    "phpunit": "vendor/bin/phpunit --filter {target}",
+    "mix_test": "mix test {target}",
+    "swift_test": "swift test --filter {target}",
+    "flutter_test": "flutter test {target}",
+    "dart_test": "dart test {target}",
+}
+
+
+def _targeted_command_for(framework: TestFramework) -> str | None:
+    """Return the targeted-run template for a framework, if it has one."""
+    template = FRAMEWORK_TARGETED_COMMANDS.get(framework.name)
+    if template is None:
+        return None
+    # Keep the Gradle wrapper when the full command uses it
+    if framework.name == "gradle" and framework.command.startswith("./gradlew"):
+        return template.replace("gradle ", "./gradlew ", 1)
+    return template
+
+
 # =============================================================================
 # TEST DISCOVERY
 # =============================================================================
@@ -298,7 +341,7 @@
         """Initialize the test discovery."""
         self._cache: dict[str, TestDiscoveryResult] = {}
 
     def discover(self, project_dir: Path) -> TestDiscoveryResult:
         """
         Discover test frameworks and configuration in the project.
 
@@ -371,6 +414,13 @@
                     result.coverage_command = framework.coverage_command
                     break
 
+        # Set targeted command template from first framework that has one
+        for framework in result.frameworks:
+            targeted = _targeted_command_for(framework)
+            if targeted:
+                result.targeted_command = targeted
+                break
+
         self._cache[cache_key] = result
         return result
 
@@ -967,6 +1017,7 @@
             "package_manager": result.package_manager,
             "has_tests": result.has_tests,
             "coverage_command": result.coverage_command,
+            "targeted_command": result.targeted_command,
         }
 
     def clear_cache(self) -> None:

tests/test_discovery.py

@@ -546,6 +546,56 @@ def test_detect_cabal_test(self, discovery, temp_dir):
         assert cabal.command == "cabal test"
 
 
+class TestTargetedCommands:
+    """Tests for targeted (subset) test command templates."""
+
+    def test_pytest_targeted_command(self, discovery, temp_dir):
+        """Python project gets a path-based targeted template."""
+        (temp_dir / "requirements.txt").write_text("pytest\n")
+
+        result = discovery.discover(temp_dir)
+
+        assert result.targeted_command == "pytest {target}"
+
+    def test_gradle_wrapper_targeted_command(self, discovery, temp_dir):
+        """Gradle project with wrapper keeps ./gradlew in targeted template."""
+        (temp_dir / "build.gradle.kts").write_text('plugins { kotlin("jvm") }')
+        (temp_dir / "gradlew").write_text("#!/bin/sh")
+
+        result = discovery.discover(temp_dir)
+
+        assert result.targeted_command == "./gradlew test --tests {target}"
+
+    def test_ctest_targeted_command(self, discovery, temp_dir):
+        """CMake project gets a ctest -R filter template."""
+        (temp_dir / "CMakeLists.txt").write_text(
+            "project(demo)\nenable_testing()\nadd_test(NAME t COMMAND t)"
+        )
+
+        result = discovery.discover(temp_dir)
+
+        assert result.targeted_command == (
+            "ctest --test-dir build -R {target} --output-on-failure"
+        )
+
+    def test_no_targeted_command_for_zig(self, discovery, temp_dir):
+        """Frameworks without a reliable targeted form yield None."""
+        (temp_dir / "build.zig").write_text("pub fn build() void {}")
+
+        result = discovery.discover(temp_dir)
+
+        assert result.targeted_command is None
+
+    def test_targeted_command_in_to_dict(self, discovery, temp_dir):
+        """to_dict includes the targeted command template."""
+        (temp_dir / "requirements.txt").write_text("pytest\n")
+
+        result = discovery.discover(temp_dir)
+        data = discovery.to_dict(result)
+
+        assert data["targeted_command"] == "pytest {target}"
+
+
 class TestPrimaryCommandPrecedence:
     """New ecosystems must not change the primary command of existing ones."""
 

tests/test_service_analyzer_testing.py

@@ -0,0 +1,79 @@
+#!/usr/bin/env python3
+"""
+Tests for ServiceAnalyzer testing detection.
+
+Verifies that service analysis (which feeds project_index.json consumed by
+coder/QA prompts) surfaces test commands discovered by TestDiscovery for
+all supported ecosystems, not just JS/Python.
+"""
+
+import sys
+import tempfile
+from pathlib import Path
+
+import pytest
+
+sys.path.insert(0, str(Path(__file__).parent.parent / "apps" / "backend"))
+
+from analysis.analyzers import ServiceAnalyzer
+
+
+@pytest.fixture
+def temp_dir():
+    """Create a temporary directory for tests."""
+    with tempfile.TemporaryDirectory() as tmpdir:
+        yield Path(tmpdir)
+
+
+class TestServiceAnalyzerTesting:
+    """Tests for _detect_testing via TestDiscovery."""
+
+    def test_python_service_gets_test_commands(self, temp_dir):
+        """Python service surfaces pytest command and targeted template."""
+        (temp_dir / "requirements.txt").write_text("pytest\n")
+        (temp_dir / "tests").mkdir()
+
+        analyzer = ServiceAnalyzer(temp_dir, "backend")
+        analyzer._detect_testing()
+
+        assert analyzer.analysis["testing"] == "pytest"
+        assert analyzer.analysis["test_command"] == "pytest"
+        assert analyzer.analysis["targeted_test_command"] == "pytest {target}"
+        assert analyzer.analysis["test_directory"] == "tests"
+
+    def test_gradle_service_gets_test_commands(self, temp_dir):
+        """JVM/Gradle service surfaces gradle test commands."""
+        (temp_dir / "build.gradle.kts").write_text('plugins { kotlin("jvm") }')
+        (temp_dir / "gradlew").write_text("#!/bin/sh")
+
+        analyzer = ServiceAnalyzer(temp_dir, "api")
+        analyzer._detect_testing()
+
+        assert analyzer.analysis["testing"] == "gradle"
+        assert analyzer.analysis["test_command"] == "./gradlew test"
+        assert (
+            analyzer.analysis["targeted_test_command"]
+            == "./gradlew test --tests {target}"
+        )
+
+    def test_js_service_separates_unit_and_e2e(self, temp_dir):
+        """JS service reports unit and e2e frameworks separately."""
+        (temp_dir / "package.json").write_text(
+            '{"devDependencies": {"vitest": "^1.0.0", "cypress": "^13.0.0"}}'
+        )
+
+        analyzer = ServiceAnalyzer(temp_dir, "frontend")
+        analyzer._detect_testing()
+
+        assert analyzer.analysis["testing"] == "vitest"
+        assert analyzer.analysis["e2e_testing"] == "cypress"
+
+    def test_service_without_tests_has_no_test_command(self, temp_dir):
+        """Service without test setup gets no test keys."""
+        (temp_dir / "main.zig").write_text("pub fn main() void {}")
+
+        analyzer = ServiceAnalyzer(temp_dir, "tool")
+        analyzer._detect_testing()
+
+        assert "test_command" not in analyzer.analysis
+        assert "targeted_test_command" not in analyzer.analysis