package lexer import ( "testing" "code.osinet.fr/fgm/waiig15/token" ) func TestNextToken(t *testing.T) { input := "\r" + ` let five = 5; let ten = 10; let add = fn(x, y) { x + y; }; let result = add(five, ten); !-/*5; 5 < 10 > 5; if (5 < 10) { return true; } else { return false; } 10 == 10; 10 != 9; $ ` tests := []struct { expectedType token.TokenType expectedLiteral string }{ {token.LET, "let"}, {token.IDENT, "five"}, {token.ASSIGN, "="}, {token.INT, "5"}, {token.SEMICOLON, ";"}, // 5 {token.LET, "let"}, {token.IDENT, "ten"}, {token.ASSIGN, "="}, {token.INT, "10"}, {token.SEMICOLON, ";"}, // 10 {token.LET, "let"}, {token.IDENT, "add"}, {token.ASSIGN, "="}, {token.FUNCTION, "fn"}, {token.LPAREN, "("}, {token.IDENT, "x"}, {token.COMMA, ","}, {token.IDENT, "y"}, {token.RPAREN, ")"}, {token.LBRACE, "{"}, {token.IDENT, "x"}, {token.PLUS, "+"}, {token.IDENT, "y"}, {token.SEMICOLON, ";"}, {token.RBRACE, "}"}, {token.SEMICOLON, ";"}, // 26 {token.LET, "let"}, {token.IDENT, "result"}, {token.ASSIGN, "="}, {token.IDENT, "add"}, {token.LPAREN, "("}, {token.IDENT, "five"}, {token.COMMA, ","}, {token.IDENT, "ten"}, {token.RPAREN, ")"}, {token.SEMICOLON, ";"}, // 36 {token.BANG, "!"}, {token.MINUS, "-"}, {token.SLASH, "/"}, {token.ASTERISK, "*"}, {token.INT, "5"}, {token.SEMICOLON, ";"}, // 42 {token.INT, "5"}, {token.LT, "<"}, {token.INT, "10"}, {token.GT, ">"}, {token.INT, "5"}, {token.SEMICOLON, ";"}, // 48 {token.IF, "if"}, {token.LPAREN, "("}, {token.INT, "5"}, {token.LT, "<"}, {token.INT, "10"}, {token.RPAREN, ")"}, {token.LBRACE, "{"}, {token.RETURN, "return"}, {token.TRUE, "true"}, {token.SEMICOLON, ";"}, {token.RBRACE, "}"}, {token.ELSE, "else"}, {token.LBRACE, "{"}, {token.RETURN, "return"}, {token.FALSE, "false"}, {token.SEMICOLON, ";"}, {token.RBRACE, "}"}, // 65 {token.INT, "10"}, {token.EQ, "=="}, {token.INT, "10"}, {token.SEMICOLON, ";"}, {token.INT, "10"}, {token.NOT_EQ, "!="}, {token.INT, "9"}, {token.SEMICOLON, ";"}, // 73 {token.ILLEGAL, "$"}, {token.EOF, ""}, } l := New(input) for i, tt := range tests { tok := l.NextToken() if tok.Type != tt.expectedType { t.Fatalf("tests[%d] - tokentype wrong. expected=%q, got=%q", i, tt.expectedType, tok.Type) } if tok.Literal != tt.expectedLiteral { t.Fatalf("tests[%d] - literal wrong. expected=%q, got=%q", i, tt.expectedLiteral, tok.Literal) } } }