{
    "basic": {
        "source": ":matches(test)",
        "ast": {
            "type": "PseudoClassSelector",
            "name": "matches",
            "children": [
                {
                    "type": "SelectorList",
                    "children": [
                        {
                            "type": "Selector",
                            "children": [
                                {
                                    "type": "TypeSelector",
                                    "name": "test"
                                }
                            ]
                        }
                    ]
                }
            ]
        }
    },
    "selector group": {
        "source": ":matches(.a,.b.c)",
        "ast": {
            "type": "PseudoClassSelector",
            "name": "matches",
            "children": [
                {
                    "type": "SelectorList",
                    "children": [
                        {
                            "type": "Selector",
                            "children": [
                                {
                                    "type": "ClassSelector",
                                    "name": "a"
                                }
                            ]
                        },
                        {
                            "type": "Selector",
                            "children": [
                                {
                                    "type": "ClassSelector",
                                    "name": "b"
                                },
                                {
                                    "type": "ClassSelector",
                                    "name": "c"
                                }
                            ]
                        }
                    ]
                }
            ]
        }
    },
    "selector group and spaces": {
        "source": ":matches(  .a  ,  .b  )",
        "generate": ":matches(.a,.b)",
        "ast": {
            "type": "PseudoClassSelector",
            "name": "matches",
            "children": [
                {
                    "type": "SelectorList",
                    "children": [
                        {
                            "type": "Selector",
                            "children": [
                                {
                                    "type": "ClassSelector",
                                    "name": "a"
                                }
                            ]
                        },
                        {
                            "type": "Selector",
                            "children": [
                                {
                                    "type": "ClassSelector",
                                    "name": "b"
                                }
                            ]
                        }
                    ]
                }
            ]
        }
    },
    "should be case insensitive": {
        "source": ":MatcheS(.a,.b)",
        "ast": {
            "type": "PseudoClassSelector",
            "name": "MatcheS",
            "children": [
                {
                    "type": "SelectorList",
                    "children": [
                        {
                            "type": "Selector",
                            "children": [
                                {
                                    "type": "ClassSelector",
                                    "name": "a"
                                }
                            ]
                        },
                        {
                            "type": "Selector",
                            "children": [
                                {
                                    "type": "ClassSelector",
                                    "name": "b"
                                }
                            ]
                        }
                    ]
                }
            ]
        }
    },
    "error": [
        {
            "source": ":matches(.a{)",
            "offset": "           ^",
            "error": "\")\" is expected"
        },
        {
            "source": ":matches(,.b)",
            "offset": "         ^",
            "error": "Selector is expected"
        },
        {
            "source": ":matches(.a,)",
            "offset": "            ^",
            "error": "Selector is expected"
        },
        {
            "source": ":matches(.a,,)",
            "offset": "            ^",
            "error": "Selector is expected"
        },
        {
            "source": ":matches(.a,.b{)",
            "offset": "              ^",
            "error": "\")\" is expected"
        },
        {
            "source": ":matches(var(--test))",
            "offset": "         ^",
            "error": "Selector is expected"
        }
    ]
}