{
    "basic": {
        "source": ".foo{ color: blue; &:hover { color: green; } @nest :not(&) { color: red; } }",
        "generate": ".foo{color:blue;&:hover{color:green}@nest :not(&){color:red}}",
        "ast": {
            "type": "Rule",
            "prelude": {
                "type": "SelectorList",
                "children": [
                    {
                        "type": "Selector",
                        "children": [
                            {
                                "type": "ClassSelector",
                                "name": "foo"
                            }
                        ]
                    }
                ]
            },
            "block": {
                "type": "Block",
                "children": [
                    {
                        "type": "Declaration",
                        "important": false,
                        "property": "color",
                        "value": {
                            "type": "Value",
                            "children": [
                                {
                                    "type": "Identifier",
                                    "name": "blue"
                                }
                            ]
                        }
                    },
                    {
                        "type": "Rule",
                        "prelude": {
                            "type": "SelectorList",
                            "children": [
                                {
                                    "type": "Selector",
                                    "children": [
                                        {
                                            "type": "NestingSelector"
                                        },
                                        {
                                            "type": "PseudoClassSelector",
                                            "name": "hover",
                                            "children": null
                                        }
                                    ]
                                }
                            ]
                        },
                        "block": {
                            "type": "Block",
                            "children": [
                                {
                                    "type": "Declaration",
                                    "important": false,
                                    "property": "color",
                                    "value": {
                                        "type": "Value",
                                        "children": [
                                            {
                                                "type": "Identifier",
                                                "name": "green"
                                            }
                                        ]
                                    }
                                }
                            ]
                        }
                    },
                    {
                        "type": "Atrule",
                        "name": "nest",
                        "prelude": {
                            "type": "AtrulePrelude",
                            "children": [
                                {
                                    "type": "SelectorList",
                                    "children": [
                                        {
                                            "type": "Selector",
                                            "children": [
                                                {
                                                    "type": "PseudoClassSelector",
                                                    "name": "not",
                                                    "children": [
                                                        {
                                                            "type": "SelectorList",
                                                            "children": [
                                                                {
                                                                    "type": "Selector",
                                                                    "children": [
                                                                        {
                                                                            "type": "NestingSelector"
                                                                        }
                                                                    ]
                                                                }
                                                            ]
                                                        }
                                                    ]
                                                }
                                            ]
                                        }
                                    ]
                                }
                            ]
                        },
                        "block": {
                            "type": "Block",
                            "children": [
                                {
                                    "type": "Declaration",
                                    "important": false,
                                    "property": "color",
                                    "value": {
                                        "type": "Value",
                                        "children": [
                                            {
                                                "type": "Identifier",
                                                "name": "red"
                                            }
                                        ]
                                    }
                                }
                            ]
                        }
                    }
                ]
            }
        }
    },
    "nested @media": {
        "source": ".foo{ color: blue; @media (orientation: landscape) { color: red; @media (min-width: 1024px) { color: green; } } }",
        "generate": ".foo{color:blue;@media (orientation:landscape){color:red;@media (min-width:1024px){color:green}}}",
        "ast": {
            "type": "Rule",
            "prelude": {
                "type": "SelectorList",
                "children": [
                    {
                        "type": "Selector",
                        "children": [
                            {
                                "type": "ClassSelector",
                                "name": "foo"
                            }
                        ]
                    }
                ]
            },
            "block": {
                "type": "Block",
                "children": [
                    {
                        "type": "Declaration",
                        "important": false,
                        "property": "color",
                        "value": {
                            "type": "Value",
                            "children": [
                                {
                                    "type": "Identifier",
                                    "name": "blue"
                                }
                            ]
                        }
                    },
                    {
                        "type": "Atrule",
                        "name": "media",
                        "prelude": {
                            "type": "AtrulePrelude",
                            "children": [
                                {
                                    "type": "MediaQueryList",
                                    "children": [
                                        {
                                            "type": "MediaQuery",
                                            "modifier": null,
                                            "mediaType": null,
                                            "condition": {
                                                "type": "Condition",
                                                "kind": "media",
                                                "children": [
                                                    {
                                                        "type": "Feature",
                                                        "kind": "media",
                                                        "name": "orientation",
                                                        "value": {
                                                            "type": "Identifier",
                                                            "name": "landscape"
                                                        }
                                                    }
                                                ]
                                            }
                                        }
                                    ]
                                }
                            ]
                        },
                        "block": {
                            "type": "Block",
                            "children": [
                                {
                                    "type": "Declaration",
                                    "important": false,
                                    "property": "color",
                                    "value": {
                                        "type": "Value",
                                        "children": [
                                            {
                                                "type": "Identifier",
                                                "name": "red"
                                            }
                                        ]
                                    }
                                },
                                {
                                    "type": "Atrule",
                                    "name": "media",
                                    "prelude": {
                                        "type": "AtrulePrelude",
                                        "children": [
                                            {
                                                "type": "MediaQueryList",
                                                "children": [
                                                    {
                                                        "type": "MediaQuery",
                                                        "modifier": null,
                                                        "mediaType": null,
                                                        "condition": {
                                                            "type": "Condition",
                                                            "kind": "media",
                                                            "children": [
                                                                {
                                                                    "type": "Feature",
                                                                    "kind": "media",
                                                                    "name": "min-width",
                                                                    "value": {
                                                                        "type": "Dimension",
                                                                        "value": "1024",
                                                                        "unit": "px"
                                                                    }
                                                                }
                                                            ]
                                                        }
                                                    }
                                                ]
                                            }
                                        ]
                                    },
                                    "block": {
                                        "type": "Block",
                                        "children": [
                                            {
                                                "type": "Declaration",
                                                "important": false,
                                                "property": "color",
                                                "value": {
                                                    "type": "Value",
                                                    "children": [
                                                        {
                                                            "type": "Identifier",
                                                            "name": "green"
                                                        }
                                                    ]
                                                }
                                            }
                                        ]
                                    }
                                }
                            ]
                        }
                    }
                ]
            }
        }
    },
    "nested @supports": {
        "source": ".foo{ color: blue; @supports (prop: value) { color: red; @supports (prop2: value2) { color: green; } } }",
        "generate": ".foo{color:blue;@supports (prop:value){color:red;@supports (prop2:value2){color:green}}}",
        "ast": {
            "type": "Rule",
            "prelude": {
                "type": "SelectorList",
                "children": [
                    {
                        "type": "Selector",
                        "children": [
                            {
                                "type": "ClassSelector",
                                "name": "foo"
                            }
                        ]
                    }
                ]
            },
            "block": {
                "type": "Block",
                "children": [
                    {
                        "type": "Declaration",
                        "important": false,
                        "property": "color",
                        "value": {
                            "type": "Value",
                            "children": [
                                {
                                    "type": "Identifier",
                                    "name": "blue"
                                }
                            ]
                        }
                    },
                    {
                        "type": "Atrule",
                        "name": "supports",
                        "prelude": {
                            "type": "AtrulePrelude",
                            "children": [
                                {
                                    "type": "Condition",
                                    "kind": "supports",
                                    "children": [
                                        {
                                            "type": "SupportsDeclaration",
                                            "declaration": {
                                                "type": "Declaration",
                                                "important": false,
                                                "property": "prop",
                                                "value": {
                                                    "type": "Value",
                                                    "children": [
                                                        {
                                                            "type": "Identifier",
                                                            "name": "value"
                                                        }
                                                    ]
                                                }
                                            }
                                        }
                                    ]
                                }
                            ]
                        },
                        "block": {
                            "type": "Block",
                            "children": [
                                {
                                    "type": "Declaration",
                                    "important": false,
                                    "property": "color",
                                    "value": {
                                        "type": "Value",
                                        "children": [
                                            {
                                                "type": "Identifier",
                                                "name": "red"
                                            }
                                        ]
                                    }
                                },
                                {
                                    "type": "Atrule",
                                    "name": "supports",
                                    "prelude": {
                                        "type": "AtrulePrelude",
                                        "children": [
                                            {
                                                "type": "Condition",
                                                "kind": "supports",
                                                "children": [
                                                    {
                                                        "type": "SupportsDeclaration",
                                                        "declaration": {
                                                            "type": "Declaration",
                                                            "important": false,
                                                            "property": "prop2",
                                                            "value": {
                                                                "type": "Value",
                                                                "children": [
                                                                    {
                                                                        "type": "Identifier",
                                                                        "name": "value2"
                                                                    }
                                                                ]
                                                            }
                                                        }
                                                    }
                                                ]
                                            }
                                        ]
                                    },
                                    "block": {
                                        "type": "Block",
                                        "children": [
                                            {
                                                "type": "Declaration",
                                                "important": false,
                                                "property": "color",
                                                "value": {
                                                    "type": "Value",
                                                    "children": [
                                                        {
                                                            "type": "Identifier",
                                                            "name": "green"
                                                        }
                                                    ]
                                                }
                                            }
                                        ]
                                    }
                                }
                            ]
                        }
                    }
                ]
            }
        }
    },
    "nested @container": {
        "source": "selector { @container card (inline-size > 30em) { @container style(--responsive: true) { color: green; } } }",
        "generate": "selector{@container card (inline-size>30em){@container style(--responsive: true){color:green}}}",
        "ast": {
            "type": "Rule",
            "prelude": {
                "type": "SelectorList",
                "children": [
                    {
                        "type": "Selector",
                        "children": [
                            {
                                "type": "TypeSelector",
                                "name": "selector"
                            }
                        ]
                    }
                ]
            },
            "block": {
                "type": "Block",
                "children": [
                    {
                        "type": "Atrule",
                        "name": "container",
                        "prelude": {
                            "type": "AtrulePrelude",
                            "children": [
                                {
                                    "type": "Identifier",
                                    "name": "card"
                                },
                                {
                                    "type": "Condition",
                                    "kind": "container",
                                    "children": [
                                        {
                                            "type": "FeatureRange",
                                            "kind": "container",
                                            "left": {
                                                "type": "Identifier",
                                                "name": "inline-size"
                                            },
                                            "leftComparison": ">",
                                            "middle": {
                                                "type": "Dimension",
                                                "value": "30",
                                                "unit": "em"
                                            },
                                            "rightComparison": null,
                                            "right": null
                                        }
                                    ]
                                }
                            ]
                        },
                        "block": {
                            "type": "Block",
                            "children": [
                                {
                                    "type": "Atrule",
                                    "name": "container",
                                    "prelude": {
                                        "type": "AtrulePrelude",
                                        "children": [
                                            {
                                                "type": "Condition",
                                                "kind": "container",
                                                "children": [
                                                    {
                                                        "type": "FeatureFunction",
                                                        "kind": "container",
                                                        "feature": "style",
                                                        "value": {
                                                            "type": "Declaration",
                                                            "important": false,
                                                            "property": "--responsive",
                                                            "value": {
                                                                "type": "Raw",
                                                                "value": " true"
                                                            }
                                                        }
                                                    }
                                                ]
                                            }
                                        ]
                                    },
                                    "block": {
                                        "type": "Block",
                                        "children": [
                                            {
                                                "type": "Declaration",
                                                "important": false,
                                                "property": "color",
                                                "value": {
                                                    "type": "Value",
                                                    "children": [
                                                        {
                                                            "type": "Identifier",
                                                            "name": "green"
                                                        }
                                                    ]
                                                }
                                            }
                                        ]
                                    }
                                }
                            ]
                        }
                    }
                ]
            }
        }
    },
    "nested @starting-style": {
        "source": "selector { @starting-style { color: red; } }",
        "generate": "selector{@starting-style{color:red}}",
        "ast": {
            "type": "Rule",
            "prelude": {
                "type": "SelectorList",
                "children": [
                    {
                        "type": "Selector",
                        "children": [
                            {
                                "type": "TypeSelector",
                                "name": "selector"
                            }
                        ]
                    }
                ]
            },
            "block": {
                "type": "Block",
                "children": [
                    {
                        "type": "Atrule",
                        "name": "starting-style",
                        "prelude": null,
                        "block": {
                            "type": "Block",
                            "children": [
                                {
                                    "type": "Declaration",
                                    "important": false,
                                    "property": "color",
                                    "value": {
                                        "type": "Value",
                                        "children": [
                                            {
                                                "type": "Identifier",
                                                "name": "red"
                                            }
                                        ]
                                    }
                                }
                            ]
                        }
                    }
                ]
            }
        }
    },
    "don't parse nested rule when it not started with &": {
        "source": ".foo{ .bar & { color: green; }; div:hover { color: red; } }",
        "generate": ".foo{.bar & { color: green; };div:hover { color: red; }}",
        "ast": {
            "type": "Rule",
            "prelude": {
                "type": "SelectorList",
                "children": [
                    {
                        "type": "Selector",
                        "children": [
                            {
                                "type": "ClassSelector",
                                "name": "foo"
                            }
                        ]
                    }
                ]
            },
            "block": {
                "type": "Block",
                "children": [
                    {
                        "type": "Raw",
                        "value": ".bar & { color: green; };"
                    },
                    {
                        "type": "Declaration",
                        "important": false,
                        "property": "div",
                        "value": {
                            "type": "Raw",
                            "value": "hover { color: red; }"
                        }
                    }
                ]
            }
        }
    }
}