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backend/cmd/fetch_codex_models/main_test.go

@@ -0,0 +1,48 @@
+package main
+
+import "testing"
+
+func TestCodexModelsURL(t *testing.T) {
+	got, err := codexModelsURL(" 0.144.1 ")
+	if err != nil {
+		t.Fatalf("codexModelsURL: %v", err)
+	}
+	want := "https://chatgpt.com/backend-api/codex/models?client_version=0.144.1"
+	if got != want {
+		t.Fatalf("codexModelsURL = %q, want %q", got, want)
+	}
+}
+
+func TestCountModels(t *testing.T) {
+	count, err := countModels([]byte(`{"models":[{"slug":"a"},{"slug":"b"}]}`))
+	if err != nil {
+		t.Fatalf("countModels(valid): %v", err)
+	}
+	if count != 2 {
+		t.Fatalf("countModels(valid) = %d, want 2", count)
+	}
+
+	// Upstream dumps may omit CPA catalog-required fields; counting must still work.
+	count, err = countModels([]byte(`{"models":[{"slug":"gpt-5.6-sol"}]}`))
+	if err != nil {
+		t.Fatalf("countModels(incomplete upstream model): %v", err)
+	}
+	if count != 1 {
+		t.Fatalf("countModels(incomplete upstream model) = %d, want 1", count)
+	}
+
+	count, err = countModels([]byte(`{"models":[]}`))
+	if err != nil {
+		t.Fatalf("countModels(empty): %v", err)
+	}
+	if count != 0 {
+		t.Fatalf("countModels(empty) = %d, want 0", count)
+	}
+
+	if _, err := countModels([]byte(`{"models":`)); err == nil {
+		t.Fatal("countModels(malformed) error = nil, want error")
+	}
+	if _, err := countModels([]byte(`{}`)); err == nil {
+		t.Fatal("countModels(missing models) error = nil, want error")
+	}
+}