refactor(ax): harden forgegen error flow and sync dev guide

Co-Authored-By: Virgil <virgil@lethean.io>

cmd/forgegen/main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"flag"
+	"os"
 
 	core "dappco.re/go/core"
 )
@@ -11,18 +12,26 @@ func main() {
 	outDir := flag.String("out", "types", "output directory for generated types")
 	flag.Parse()
 
-	spec, err := LoadSpec(*specPath)
+	if err := run(*specPath, *outDir); err != nil {
+		core.Print(os.Stderr, "forgegen: %v", err)
+		os.Exit(1)
+	}
+}
+
+func run(specPath, outDir string) error {
+	spec, err := LoadSpec(specPath)
 	if err != nil {
-		panic(core.E("forgegen.main", "load spec", err))
+		return core.E("forgegen.main", "load spec", err)
 	}
 
 	types := ExtractTypes(spec)
 	pairs := DetectCRUDPairs(spec)
 
 	core.Print(nil, "Loaded %d types, %d CRUD pairs", len(types), len(pairs))
-	core.Print(nil, "Output dir: %s", *outDir)
+	core.Print(nil, "Output dir: %s", outDir)
 
-	if err := Generate(types, pairs, *outDir); err != nil {
-		panic(core.E("forgegen.main", "generate types", err))
+	if err := Generate(types, pairs, outDir); err != nil {
+		return core.E("forgegen.main", "generate types", err)
 	}
+	return nil
 }

cmd/forgegen/main_test.go

@@ -0,0 +1,40 @@
+package main
+
+import (
+	"testing"
+
+	core "dappco.re/go/core"
+	coreio "dappco.re/go/core/io"
+)
+
+func TestMain_Run_Good(t *testing.T) {
+	outDir := t.TempDir()
+	if err := run("../../testdata/swagger.v1.json", outDir); err != nil {
+		t.Fatal(err)
+	}
+
+	entries, err := coreio.Local.List(outDir)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	goFiles := 0
+	for _, e := range entries {
+		if core.HasSuffix(e.Name(), ".go") {
+			goFiles++
+		}
+	}
+	if goFiles == 0 {
+		t.Fatal("no .go files generated by run")
+	}
+}
+
+func TestMain_Run_Bad(t *testing.T) {
+	err := run("/does/not/exist/swagger.v1.json", t.TempDir())
+	if err == nil {
+		t.Fatal("expected error for invalid spec path")
+	}
+	if !core.Contains(err.Error(), "load spec") {
+		t.Fatalf("got error %q, expected load spec context", err.Error())
+	}
+}

docs/development.md

@@ -39,7 +39,7 @@ All tests use the standard `testing` package with `net/http/httptest` for HTTP s
 go test ./...
 
 # Run a specific test by name
-go test -v -run TestClient_Good_Get ./...
+go test -v -run TestClient_Get_Good ./...
 
 # Run tests with race detection
 go test -race ./...
@@ -59,7 +59,7 @@ core go cov --open   # Open coverage report in browser
 
 ### Test naming convention
 
-Tests follow the `_Good`, `_Bad`, `_Ugly` suffix pattern:
+Tests follow `Test<TypeOrArea>_<MethodOrCase>_<Good|Bad|Ugly>`:
 
 - **`_Good`** — Happy-path tests confirming correct behaviour.
 - **`_Bad`** — Expected error conditions (e.g. 404, 500 responses).
@@ -67,11 +67,11 @@ Tests follow the `_Good`, `_Bad`, `_Ugly` suffix pattern:
 
 Examples:
 ```
-TestClient_Good_Get
-TestClient_Bad_ServerError
-TestClient_Bad_NotFound
-TestClient_Good_ContextCancellation
-TestResource_Good_ListAll
+TestClient_Get_Good
+TestClient_ServerError_Bad
+TestClient_NotFound_Bad
+TestClient_ContextCancellation_Good
+TestResource_ListAll_Good
 ```
 
 
@@ -173,7 +173,7 @@ To add coverage for a new Forgejo API domain:
 
    ```go
    func (s *TopicService) ListRepoTopics(ctx context.Context, owner, repo string) ([]types.Topic, error) {
-       path := fmt.Sprintf("/api/v1/repos/%s/%s/topics", owner, repo)
+       path := ResolvePath("/api/v1/repos/{owner}/{repo}/topics", pathParams("owner", owner, "repo", repo))
        return ListAll[types.Topic](ctx, s.client, path, nil)
    }
    ```