diff --git a/test/node_scalar_string_test.go b/test/node_scalar_string_test.go
index 7647ba1..1f897af 100644
--- a/test/node_scalar_string_test.go
+++ b/test/node_scalar_string_test.go
@@ -10,7 +10,7 @@ import (
 	"github.com/z7zmey/php-parser/token"
 )
 
-func TestNewNodeScalarString(t *testing.T) {
+func TestDoubleQuotedScalarString(t *testing.T) {
 	src := `<? "test";`
 
 	strToken := token.NewToken([]byte("\"test\""), 1, 1)
@@ -20,6 +20,103 @@ func TestNewNodeScalarString(t *testing.T) {
 	node := parser.Parse(bytes.NewBufferString(src), "test.php")
 
 	if diff := pretty.Compare(expected, node); diff != "" {
-		t.Errorf("post-AddCrew diff: (-expected +actual)\n%s", diff)
+		t.Errorf("diff: (-expected +actual)\n%s", diff)
+	}
+}
+
+func TestMultilineDoubleQuotedScalarString(t *testing.T) {
+	src := `<? "
+	test
+	";`
+
+	strToken := token.NewToken([]byte("\"\n\ttest\n\t\""), 1, 3)
+	strNode := node.NewNodeScalarString(strToken)
+	expected := node.SimpleNode("Statements").Append(strNode)
+
+	node := parser.Parse(bytes.NewBufferString(src), "test.php")
+
+	if diff := pretty.Compare(expected, node); diff != "" {
+		t.Errorf("diff: (-expected +actual)\n%s", diff)
+	}
+}
+
+func TestSingleQuotedScalarString(t *testing.T) {
+	src := `<? '$test';`
+
+	strToken := token.NewToken([]byte("'$test'"), 1, 1)
+	strNode := node.NewNodeScalarString(strToken)
+	expected := node.SimpleNode("Statements").Append(strNode)
+
+	node := parser.Parse(bytes.NewBufferString(src), "test.php")
+
+	if diff := pretty.Compare(expected, node); diff != "" {
+		t.Errorf("diff: (-expected +actual)\n%s", diff)
+	}
+}
+
+func TestMultilineSingleQuotedScalarString(t *testing.T) {
+	src := `<? '
+	$test
+	';`
+
+	strToken := token.NewToken([]byte("'\n\t$test\n\t'"), 1, 3)
+	strNode := node.NewNodeScalarString(strToken)
+	expected := node.SimpleNode("Statements").Append(strNode)
+
+	node := parser.Parse(bytes.NewBufferString(src), "test.php")
+
+	if diff := pretty.Compare(expected, node); diff != "" {
+		t.Errorf("diff: (-expected +actual)\n%s", diff)
+	}
+}
+
+func TestPlainHeredocScalarString(t *testing.T) {
+	src := `<? <<<CAD
+	hello
+CAD;
+`
+
+	strToken := token.NewToken([]byte("\thello\n"), 2, 3)
+	strNode := node.NewNodeScalarString(strToken)
+	expected := node.SimpleNode("Statements").Append(strNode)
+
+	node := parser.Parse(bytes.NewBufferString(src), "test.php")
+
+	if diff := pretty.Compare(expected, node); diff != "" {
+		t.Errorf("diff: (-expected +actual)\n%s", diff)
+	}
+}
+
+func TestHeredocScalarString(t *testing.T) {
+	src := `<? <<<"CAD"
+	hello
+CAD;
+`
+
+	strToken := token.NewToken([]byte("\thello\n"), 2, 3)
+	strNode := node.NewNodeScalarString(strToken)
+	expected := node.SimpleNode("Statements").Append(strNode)
+
+	node := parser.Parse(bytes.NewBufferString(src), "test.php")
+
+	if diff := pretty.Compare(expected, node); diff != "" {
+		t.Errorf("diff: (-expected +actual)\n%s", diff)
+	}
+}
+
+func TestNowdocScalarString(t *testing.T) {
+	src := `<? <<<'CAD'
+	hello $world
+CAD;
+`
+
+	strToken := token.NewToken([]byte("\thello $world\n"), 2, 3)
+	strNode := node.NewNodeScalarString(strToken)
+	expected := node.SimpleNode("Statements").Append(strNode)
+
+	node := parser.Parse(bytes.NewBufferString(src), "test.php")
+
+	if diff := pretty.Compare(expected, node); diff != "" {
+		t.Errorf("diff: (-expected +actual)\n%s", diff)
 	}
 }