Move validation tests to vallie package

container_test.go

@@ -25,8 +25,6 @@ import (
 	"reflect"
 	"testing"
 
-	"go.uber.org/dig/vallie"
-
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
@@ -546,32 +544,6 @@ func TestMultiObjectRegisterResolve(t *testing.T) {
 	require.NotNil(t, third, "Child3 must have been registered")
 }
 
-func Test_ZeroValueObjectValidationSuccess(t *testing.T) {
-	t.Parallel()
-	c := New()
-
-	c.Provide(&Parent1{})
-	err := c.Invoke(func(p1 *Parent1) {
-		er := vallie.Validate(p1)
-		require.NoError(t, er)
-	})
-	require.Nil(t, err)
-}
-
-func Test_ZeroValueObjectValidationError(t *testing.T) {
-	t.Parallel()
-	c := New()
-
-	var zeroP12 *Parent12
-	err := c.Invoke(func(p12 *Parent12) {
-		er := vallie.Validate(p12)
-		require.Error(t, er)
-		require.Contains(t, er.Error(), "zero value")
-		zeroP12 = p12
-	})
-	require.Nil(t, err)
-}
-
 func TestZeroValueOnInvoke(t *testing.T) {
 	type missing struct{}
 	type present struct{}

vallie/vallie_test.go

@@ -0,0 +1,35 @@
+package vallie
+
+import (
+	"net/http"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestValidation(t *testing.T) {
+	type nothing struct{}
+
+	tests := []struct {
+		desc  string
+		input []interface{}
+		valid bool
+	}{
+		{"empty input", []interface{}{}, true},
+		{"nil pointer", []interface{}{(*nothing)(nil)}, false},
+		{"zero value", []interface{}{nothing{}}, false},
+		{"non-zero value", []interface{}{5}, true},
+		{"mixed input", []interface{}{5, http.DefaultServeMux}, true},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.desc, func(t *testing.T) {
+			assert.Equal(
+				t,
+				tt.valid,
+				Validate(tt.input...) == nil,
+				"unexpected validation result for %v", tt.input,
+			)
+		})
+	}
+}