diff --git a/node/expr/cast/t_cast_test.go b/node/expr/cast/t_cast_test.go
new file mode 100644
index 0000000..9febe9c
--- /dev/null
+++ b/node/expr/cast/t_cast_test.go
@@ -0,0 +1,248 @@
+package cast_test
+
+import (
+	"bytes"
+	"reflect"
+	"testing"
+
+	"github.com/kylelemons/godebug/pretty"
+	
+	"github.com/z7zmey/php-parser/node"
+	"github.com/z7zmey/php-parser/node/expr"
+	"github.com/z7zmey/php-parser/node/expr/cast"
+	"github.com/z7zmey/php-parser/node/stmt"
+	"github.com/z7zmey/php-parser/php5"
+	"github.com/z7zmey/php-parser/php7"
+)
+
+func assertEqual(t *testing.T, expected interface{}, actual interface{}) {
+	if !reflect.DeepEqual(expected, actual) {
+		diff := pretty.Compare(expected, actual)
+
+		if diff != "" {
+			t.Errorf("diff: (-expected +actual)\n%s", diff)
+		} else {
+			t.Errorf("expected and actual are not equal\n")
+		}
+	}
+}
+
+func TestCastArray(t *testing.T) {
+	src := `<? (array)$a;`
+
+	expected := &stmt.StmtList{
+		Stmts: []node.Node{
+			&stmt.Expression{
+				Expr: &cast.CastArray{
+					Cast: cast.Cast{
+						Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+					},
+				},
+			},
+		},
+	}
+
+	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+
+	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+}
+
+func TestCastBool(t *testing.T) {
+	src := `<? (boolean)$a;`
+
+	expected := &stmt.StmtList{
+		Stmts: []node.Node{
+			&stmt.Expression{
+				Expr: &cast.CastBool{
+					Cast: cast.Cast{
+						Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+					},
+				},
+			},
+		},
+	}
+
+	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+
+	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+}
+
+func TestCastBoolShort(t *testing.T) {
+	src := `<? (bool)$a;`
+
+	expected := &stmt.StmtList{
+		Stmts: []node.Node{
+			&stmt.Expression{
+				Expr: &cast.CastBool{
+					Cast: cast.Cast{
+						Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+					},
+				},
+			},
+		},
+	}
+
+	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+
+	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+}
+
+func TestCastDouble(t *testing.T) {
+	src := `<? (double)$a;`
+
+	expected := &stmt.StmtList{
+		Stmts: []node.Node{
+			&stmt.Expression{
+				Expr: &cast.CastDouble{
+					Cast: cast.Cast{
+						Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+					},
+				},
+			},
+		},
+	}
+
+	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+
+	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+}
+
+func TestCastFloat(t *testing.T) {
+	src := `<? (float)$a;`
+
+	expected := &stmt.StmtList{
+		Stmts: []node.Node{
+			&stmt.Expression{
+				Expr: &cast.CastDouble{
+					Cast: cast.Cast{
+						Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+					},
+				},
+			},
+		},
+	}
+
+	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+
+	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+}
+
+func TestCastInt(t *testing.T) {
+	src := `<? (integer)$a;`
+
+	expected := &stmt.StmtList{
+		Stmts: []node.Node{
+			&stmt.Expression{
+				Expr: &cast.CastInt{
+					Cast: cast.Cast{
+						Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+					},
+				},
+			},
+		},
+	}
+
+	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+
+	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+}
+
+func TestCastIntShort(t *testing.T) {
+	src := `<? (int)$a;`
+
+	expected := &stmt.StmtList{
+		Stmts: []node.Node{
+			&stmt.Expression{
+				Expr: &cast.CastInt{
+					Cast: cast.Cast{
+						Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+					},
+				},
+			},
+		},
+	}
+
+	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+
+	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+}
+
+func TestCastObject(t *testing.T) {
+	src := `<? (object)$a;`
+
+	expected := &stmt.StmtList{
+		Stmts: []node.Node{
+			&stmt.Expression{
+				Expr: &cast.CastObject{
+					Cast: cast.Cast{
+						Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+					},
+				},
+			},
+		},
+	}
+
+	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+
+	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+}
+
+func TestCastString(t *testing.T) {
+	src := `<? (string)$a;`
+
+	expected := &stmt.StmtList{
+		Stmts: []node.Node{
+			&stmt.Expression{
+				Expr: &cast.CastString{
+					Cast: cast.Cast{
+						Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+					},
+				},
+			},
+		},
+	}
+
+	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+
+	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+}
+
+func TestCastUnset(t *testing.T) {
+	src := `<? (unset)$a;`
+
+	expected := &stmt.StmtList{
+		Stmts: []node.Node{
+			&stmt.Expression{
+				Expr: &cast.CastUnset{
+					Cast: cast.Cast{
+						Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+					},
+				},
+			},
+		},
+	}
+
+	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+
+	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+}
diff --git a/node/expr/cast/t_visitor_test.go b/node/expr/cast/t_visitor_test.go
new file mode 100644
index 0000000..af66d45
--- /dev/null
+++ b/node/expr/cast/t_visitor_test.go
@@ -0,0 +1,139 @@
+package cast_test
+
+import (
+	"reflect"
+	"testing"
+	
+	"github.com/kylelemons/godebug/pretty"
+	
+	"github.com/z7zmey/php-parser/node"
+	"github.com/z7zmey/php-parser/node/expr"
+	"github.com/z7zmey/php-parser/node/expr/cast"
+	"github.com/z7zmey/php-parser/walker"
+)
+
+var nodesToTest = []struct {
+	node                node.Node // node
+	expectedVisitedKeys []string  // visited keys
+	expectedAttributes  map[string]interface{}
+}{
+	{
+		&cast.CastArray{
+			Cast: cast.Cast{
+				Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+			},
+		},
+		[]string{"Expr"},
+		map[string]interface{}{},
+	},
+	{
+		&cast.CastBool{
+			Cast: cast.Cast{
+				Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+			},
+		},
+		[]string{"Expr"},
+		map[string]interface{}{},
+	},
+	{
+		&cast.CastDouble{
+			Cast: cast.Cast{
+				Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+			},
+		},
+		[]string{"Expr"},
+		map[string]interface{}{},
+	},
+	{
+		&cast.CastInt{
+			Cast: cast.Cast{
+				Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+			},
+		},
+		[]string{"Expr"},
+		map[string]interface{}{},
+	},
+	{
+		&cast.CastObject{
+			Cast: cast.Cast{
+				Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+			},
+		},
+		[]string{"Expr"},
+		map[string]interface{}{},
+	},
+	{
+		&cast.CastString{
+			Cast: cast.Cast{
+				Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+			},
+		},
+		[]string{"Expr"},
+		map[string]interface{}{},
+	},
+	{
+		&cast.CastUnset{
+			Cast: cast.Cast{
+				Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+			},
+		},
+		[]string{"Expr"},
+		map[string]interface{}{},
+	},
+}
+
+type visitorMock struct {
+	visitChildren bool
+	visitedKeys   []string
+}
+
+func (v *visitorMock) EnterNode(n walker.Walker) bool { return v.visitChildren }
+func (v *visitorMock) GetChildrenVisitor(key string) walker.Visitor {
+	v.visitedKeys = append(v.visitedKeys, key)
+	return &visitorMock{v.visitChildren, nil}
+}
+func (v *visitorMock) LeaveNode(n walker.Walker) {}
+
+func TestVisitorDisableChildren(t *testing.T) {
+	for _, tt := range nodesToTest {
+		v := &visitorMock{false, nil}
+		tt.node.Walk(v)
+
+		expected := []string{}
+		actual := v.visitedKeys
+
+		diff := pretty.Compare(expected, actual)
+		if diff != "" {
+			t.Errorf("%s diff: (-expected +actual)\n%s", reflect.TypeOf(tt.node), diff)
+		}
+	}
+}
+
+func TestVisitor(t *testing.T) {
+	for _, tt := range nodesToTest {
+		v := &visitorMock{true, nil}
+		tt.node.Walk(v)
+
+		expected := tt.expectedVisitedKeys
+		actual := v.visitedKeys
+
+		diff := pretty.Compare(expected, actual)
+		if diff != "" {
+			t.Errorf("%s diff: (-expected +actual)\n%s", reflect.TypeOf(tt.node), diff)
+		}
+	}
+}
+
+// test Attributes()
+
+func TestNameAttributes(t *testing.T) {
+	for _, tt := range nodesToTest {
+		expected := tt.expectedAttributes
+		actual := tt.node.Attributes()
+
+		diff := pretty.Compare(expected, actual)
+		if diff != "" {
+			t.Errorf("%s diff: (-expected +actual)\n%s", reflect.TypeOf(tt.node), diff)
+		}
+	}
+}