first commit

pigo/internal/cli/providerhelp_test.go

@@ -0,0 +1,32 @@
+package cli
+
+import (
+	"bytes"
+	"strings"
+	"testing"
+
+	"github.com/smallnest/pigo/internal/provider"
+)
+
+// TestPrintProviderHelp verifies the --help "Supported providers" block is
+// derived from the registry: every built-in provider name, its env vars, and
+// its protocol must appear, so the docs cannot silently drift from the code.
+func TestPrintProviderHelp(t *testing.T) {
+	var buf bytes.Buffer
+	PrintProviderHelp(&buf)
+	out := buf.String()
+
+	for _, spec := range provider.ProviderSpecs() {
+		if !strings.Contains(out, spec.Name+":") {
+			t.Errorf("help output missing provider %q", spec.Name)
+		}
+		for _, env := range spec.EnvVars {
+			if !strings.Contains(out, env) {
+				t.Errorf("help output missing env var %q for provider %q", env, spec.Name)
+			}
+		}
+		if !strings.Contains(out, "["+spec.Protocol+"]") {
+			t.Errorf("help output missing protocol %q for provider %q", spec.Protocol, spec.Name)
+		}
+	}
+}