Phase 5: scaffold Crucible (sow-tools) — dispatcher + builder shims, container, PR-first CI, fail-closed (D11, D19).

internal/dispatch/dispatch_test.go

@@ -0,0 +1,87 @@
+package dispatch
+
+import (
+	"bytes"
+	"strings"
+	"testing"
+)
+
+func TestVersion(t *testing.T) {
+	var out, errw bytes.Buffer
+	for _, arg := range []string{"version", "-V", "--version"} {
+		out.Reset()
+		errw.Reset()
+		if code := run([]string{arg}, &out, &errw); code != exitOK {
+			t.Fatalf("%s: exit=%d want %d", arg, code, exitOK)
+		}
+		if !strings.HasPrefix(out.String(), "crucible ") {
+			t.Fatalf("%s: version line %q missing prefix", arg, out.String())
+		}
+	}
+}
+
+func TestHelpAndNoArgs(t *testing.T) {
+	var out, errw bytes.Buffer
+	if code := run([]string{"help"}, &out, &errw); code != exitOK {
+		t.Fatalf("help exit=%d want %d", code, exitOK)
+	}
+	if !strings.Contains(out.String(), "builders:") {
+		t.Fatalf("help output missing builders section:\n%s", out.String())
+	}
+	// No args is a usage error (exit 64) but still prints help.
+	out.Reset()
+	if code := run(nil, &out, &errw); code != exitUsage {
+		t.Fatalf("no-args exit=%d want %d", code, exitUsage)
+	}
+}
+
+func TestListCoversRegistry(t *testing.T) {
+	var out bytes.Buffer
+	list(&out)
+	for _, b := range Registry {
+		if !strings.Contains(out.String(), b.Name) || !strings.Contains(out.String(), b.Bin) {
+			t.Fatalf("list missing %s/%s:\n%s", b.Name, b.Bin, out.String())
+		}
+	}
+}
+
+func TestUnknownBuilderFailsUsage(t *testing.T) {
+	var out, errw bytes.Buffer
+	if code := run([]string{"frobnicate"}, &out, &errw); code != exitUsage {
+		t.Fatalf("unknown builder exit=%d want %d", code, exitUsage)
+	}
+	if !strings.Contains(errw.String(), "unknown builder") {
+		t.Fatalf("unknown builder stderr=%q", errw.String())
+	}
+}
+
+func TestEveryBuilderFailsClosed(t *testing.T) {
+	for _, b := range Registry {
+		var out, errw bytes.Buffer
+		// Via dispatcher.
+		if code := run([]string{b.Name}, &out, &errw); code != exitUnwired {
+			t.Errorf("crucible %s: exit=%d want %d (must fail closed)", b.Name, code, exitUnwired)
+		}
+		if !strings.Contains(errw.String(), "not wired") {
+			t.Errorf("crucible %s: stderr missing fail-closed message: %q", b.Name, errw.String())
+		}
+		// Via standalone shim path.
+		out.Reset()
+		errw.Reset()
+		if code := runBuilder(b.Name, nil, &out, &errw); code != exitUnwired {
+			t.Errorf("%s: exit=%d want %d (must fail closed)", b.Bin, code, exitUnwired)
+		}
+	}
+}
+
+func TestBuilderHelpIsOK(t *testing.T) {
+	for _, b := range Registry {
+		var out, errw bytes.Buffer
+		if code := runBuilder(b.Name, []string{"--help"}, &out, &errw); code != exitOK {
+			t.Errorf("%s --help: exit=%d want %d", b.Name, code, exitOK)
+		}
+		if !strings.Contains(out.String(), b.Summary) {
+			t.Errorf("%s --help: missing summary", b.Name)
+		}
+	}
+}