diff --git a/analyzers/test/test.l b/analyzers/test/test.l
index 653093e..73595e5 100644
--- a/analyzers/test/test.l
+++ b/analyzers/test/test.l
@@ -73,6 +73,7 @@ LETTER_OR_DIGIT        [a-zA-Z0-9_]
 "++"                   { return INC; }
 "--"                   { return DEC; }
 
+"interface{}"          { return INTERFACE_LITERAL; }
 "interface"            { return INTERFACE; }
 "map"                  { return MAP; }
 "struct"               { return STRUCT; }
diff --git a/analyzers/test/test.y b/analyzers/test/test.y
index bc83f6b..9aad94e 100644
--- a/analyzers/test/test.y
+++ b/analyzers/test/test.y
@@ -25,7 +25,7 @@ void free_node(char *str) {
 %token VAR FUNC RETURN STRING_LITERAL FLOAT_LITERAL COMPLEX_LITERAL NUMBER PACKAGE IMPORT
 %token INC DEC PLUS_EQ MINUS_EQ MUL_EQ DIV_EQ MOD_EQ
 %token AMPERSAND_EQ PIPE_EQ XOR_EQ LSHIFT_EQ RSHIFT_EQ AND_NOT_EQ
-%token FOR BREAK CONTINUE ARROW IF ELSE RANGE DEFER GO TYPE STRUCT MAP CHAN INTERFACE
+%token FOR BREAK CONTINUE ARROW IF ELSE RANGE DEFER GO TYPE STRUCT MAP CHAN INTERFACE INTERFACE_LITERAL
 %token CHAN CONST CASE SWITCH MAKE
 %token PLUS MINUS MULT DIV MOD
 %token STRING
@@ -70,6 +70,7 @@ statement:
     | any_identifier ASSIGN math_expr SEMICOLON
     | any_identifier ASSIGN literal SEMICOLON
     | var_multiple_short_assignment SEMICOLON
+    | TYPE IDENTIFIER interface_declaration SEMICOLON
     | func_declaration
     { printf("\033[1;33mSTATEMENT: function declaration\033[0m\n"); }
     | type_delcaration SEMICOLON
@@ -244,6 +245,7 @@ math_expr:
     | LPAREN { printf("LPAREN\n"); } math_expr RPAREN { printf("RPAREN\n"); }
     | NUMBER { printf("NUMBER\n"); }
     | FLOAT_LITERAL { printf("FLOAT LITERAL\n"); }
+    | INTERFACE_LITERAL { printf("INTERFACE LITERAL\n"); }
     | COMPLEX_LITERAL { printf("COMPLEX LITERAL\n"); }
     | make { printf("make\n"); }
     | any_identifier { printf("IDENTIFIER\n"); }
@@ -272,7 +274,7 @@ log_expr:
 // types
 
 interface_types:
-    INTERFACE {printf("INTERFACE\n"); } LBRACE interface_declarate_field_list RBRACE
+    INTERFACE_LITERAL
 
 struct_types:
     STRUCT LBRACE declarate_field_list RBRACE
@@ -337,6 +339,7 @@ literal:
     | arr_literal {  }
     | struct_literal {  }
     | func_literal {  }
+    | INTERFACE_LITERAL
     | COMPLEX_LITERAL {  }
     | BOOL_LITERAL { }
     | FLOAT_LITERAL { }
@@ -467,6 +470,8 @@ map_element:
     | IDENTIFIER LBRACK any_identifier RBRACK
 
 // interface
+interface_declaration:
+    INTERFACE {printf("INTERFACE\n"); } LBRACE interface_declarate_field_list RBRACE
 
 interface_field:
     IDENTIFIER LPAREN arg_list RPAREN {printf("ret type interface\n");} return_type
@@ -497,7 +502,8 @@ struct_literal:
     any_identifier LBRACE field_list RBRACE { printf("STRUCT LITERAL\n"); }
     | any_identifier LBRACE math_expr_or_literals_list RBRACE { printf("STRUCT LITERAL\n"); }
 
-// chan
+// 
+
 chan_types:
     CHAN type
 
diff --git a/tests/test_interfaces.txt b/tests/test_interfaces.txt
index fc6bfc1..bee1ead 100644
--- a/tests/test_interfaces.txt
+++ b/tests/test_interfaces.txt
@@ -1,6 +1,46 @@
 package main;
+import "fmt";
 
 type test interface{
     a(a int) (a, b int);
     b() (a, b int, string);
-};
\ No newline at end of file
+};
+ 
+type Vehicle interface{
+    move();
+};
+ 
+func drive(vehicle Vehicle){
+    vehicle.move();
+}
+ 
+type Car struct{ };
+type Aircraft struct{};
+
+func (c Car) move(){
+    fmt.Println("Автомобиль едет");
+}
+func (a Aircraft) move(){
+    fmt.Println("Самолет летит");
+}
+ 
+func main() {
+     
+    tesla := Car{};
+    boing := Aircraft{};
+    drive(tesla);
+    drive(boing);
+
+    var anything interface{}; // Пустой интерфейс
+    
+    b := interface{}; // short decl
+
+    anything = 42;
+    fmt.Printf("Тип: %T, Значение: %v\n", anything, anything); // int, 42
+    
+    anything = "hello";
+    fmt.Printf("Тип: %T, Значение: %v\n", anything, anything); // string, hello
+    
+    anything = 3.14;
+    fmt.Printf("Тип: %T, Значение: %v\n", anything, anything); // float64, 3.14
+}
\ No newline at end of file