Add command to validate configuration

config/validate_test.go

@@ -0,0 +1,29 @@
+package config
+
+import (
+	"fmt"
+	"strings"
+	"testing"
+)
+
+func testValidate(t *testing.T, cfg []byte, contains string) {
+	validationErrors, err := Validate(cfg)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if contains == "" && len(validationErrors.Errors()) != 0 {
+		t.Fail()
+	}
+	if !strings.Contains(fmt.Sprint(validationErrors.Errors()), contains) {
+		t.Fail()
+	}
+}
+
+func TestValidate(t *testing.T) {
+	testValidate(t, []byte("{}"), "")
+	testValidate(t, []byte(`rancher:
+  log: true
+`), "")
+	testValidate(t, []byte("bad_key: {}"), "Additional property bad_key is not allowed")
+	testValidate(t, []byte("rancher: []"), "rancher: Invalid type. Expected: object, given: array")
+}