Add e2e tests

e2e/show_config_extra_test.go

@@ -0,0 +1,36 @@
+package e2e
+
+import (
+	"testing"
+)
+
+func TestShowConfigFromYAML(t *testing.T) {
+	t.Parallel()
+	config := `
+url: "http://example.com"
+requests: 1
+showConfig: true
+`
+	configPath := writeTemp(t, "show_config.yaml", config)
+
+	res := run("-f", configPath)
+	assertExitCode(t, res, 0)
+
+	// Non-TTY: should output raw YAML config
+	assertContains(t, res.Stdout, "url:")
+	assertContains(t, res.Stdout, "example.com")
+}
+
+func TestShowConfigFromEnv(t *testing.T) {
+	t.Parallel()
+
+	res := runWithEnv(map[string]string{
+		"SARIN_URL":         "http://example.com",
+		"SARIN_REQUESTS":    "1",
+		"SARIN_SHOW_CONFIG": "true",
+	}, "-q")
+	assertExitCode(t, res, 0)
+
+	assertContains(t, res.Stdout, "url:")
+	assertContains(t, res.Stdout, "example.com")
+}