---
source: crates/ruff_python_parser/tests/fixtures.rs
input_file: crates/ruff_python_parser/resources/valid/statement/assert.py
---
## AST

```
Module(
    ModModule {
        node_index: AtomicNodeIndex(..),
        range: 0..186,
        body: [
            Assert(
                StmtAssert {
                    node_index: AtomicNodeIndex(..),
                    range: 0..12,
                    test: Compare(
                        ExprCompare {
                            node_index: AtomicNodeIndex(..),
                            range: 7..12,
                            left: NumberLiteral(
                                ExprNumberLiteral {
                                    node_index: AtomicNodeIndex(..),
                                    range: 7..8,
                                    value: Int(
                                        1,
                                    ),
                                },
                            ),
                            ops: [
                                Lt,
                            ],
                            comparators: [
                                NumberLiteral(
                                    ExprNumberLiteral {
                                        node_index: AtomicNodeIndex(..),
                                        range: 11..12,
                                        value: Int(
                                            2,
                                        ),
                                    },
                                ),
                            ],
                        },
                    ),
                    msg: None,
                },
            ),
            Assert(
                StmtAssert {
                    node_index: AtomicNodeIndex(..),
                    range: 13..26,
                    test: Call(
                        ExprCall {
                            node_index: AtomicNodeIndex(..),
                            range: 20..26,
                            func: Name(
                                ExprName {
                                    node_index: AtomicNodeIndex(..),
                                    range: 20..24,
                                    id: Name("call"),
                                    ctx: Load,
                                },
                            ),
                            arguments: Arguments {
                                range: 24..26,
                                node_index: AtomicNodeIndex(..),
                                args: [],
                                keywords: [],
                            },
                        },
                    ),
                    msg: None,
                },
            ),
            Assert(
                StmtAssert {
                    node_index: AtomicNodeIndex(..),
                    range: 27..41,
                    test: BoolOp(
                        ExprBoolOp {
                            node_index: AtomicNodeIndex(..),
                            range: 34..41,
                            op: And,
                            values: [
                                Name(
                                    ExprName {
                                        node_index: AtomicNodeIndex(..),
                                        range: 34..35,
                                        id: Name("a"),
                                        ctx: Load,
                                    },
                                ),
                                Name(
                                    ExprName {
                                        node_index: AtomicNodeIndex(..),
                                        range: 40..41,
                                        id: Name("b"),
                                        ctx: Load,
                                    },
                                ),
                            ],
                        },
                    ),
                    msg: None,
                },
            ),
            Assert(
                StmtAssert {
                    node_index: AtomicNodeIndex(..),
                    range: 42..60,
                    test: Lambda(
                        ExprLambda {
                            node_index: AtomicNodeIndex(..),
                            range: 49..60,
                            parameters: Some(
                                Parameters {
                                    range: 56..57,
                                    node_index: AtomicNodeIndex(
                                        0,
                                    ),
                                    posonlyargs: [],
                                    args: [
                                        ParameterWithDefault {
                                            range: 56..57,
                                            node_index: AtomicNodeIndex(..),
                                            parameter: Parameter {
                                                range: 56..57,
                                                node_index: AtomicNodeIndex(..),
                                                name: Identifier {
                                                    id: Name("x"),
                                                    range: 56..57,
                                                    node_index: AtomicNodeIndex(..),
                                                },
                                                annotation: None,
                                            },
                                            default: None,
                                        },
                                    ],
                                    vararg: None,
                                    kwonlyargs: [],
                                    kwarg: None,
                                },
                            ),
                            body: Name(
                                ExprName {
                                    node_index: AtomicNodeIndex(..),
                                    range: 59..60,
                                    id: Name("y"),
                                    ctx: Load,
                                },
                            ),
                        },
                    ),
                    msg: None,
                },
            ),
            Assert(
                StmtAssert {
                    node_index: AtomicNodeIndex(..),
                    range: 61..75,
                    test: Await(
                        ExprAwait {
                            node_index: AtomicNodeIndex(..),
                            range: 68..75,
                            value: Name(
                                ExprName {
                                    node_index: AtomicNodeIndex(..),
                                    range: 74..75,
                                    id: Name("x"),
                                    ctx: Load,
                                },
                            ),
                        },
                    ),
                    msg: None,
                },
            ),
            Assert(
                StmtAssert {
                    node_index: AtomicNodeIndex(..),
                    range: 76..99,
                    test: If(
                        ExprIf {
                            node_index: AtomicNodeIndex(..),
                            range: 83..99,
                            test: BooleanLiteral(
                                ExprBooleanLiteral {
                                    node_index: AtomicNodeIndex(..),
                                    range: 88..92,
                                    value: true,
                                },
                            ),
                            body: Name(
                                ExprName {
                                    node_index: AtomicNodeIndex(..),
                                    range: 83..84,
                                    id: Name("x"),
                                    ctx: Load,
                                },
                            ),
                            orelse: Name(
                                ExprName {
                                    node_index: AtomicNodeIndex(..),
                                    range: 98..99,
                                    id: Name("y"),
                                    ctx: Load,
                                },
                            ),
                        },
                    ),
                    msg: None,
                },
            ),
            Assert(
                StmtAssert {
                    node_index: AtomicNodeIndex(..),
                    range: 101..118,
                    test: Name(
                        ExprName {
                            node_index: AtomicNodeIndex(..),
                            range: 108..109,
                            id: Name("x"),
                            ctx: Load,
                        },
                    ),
                    msg: Some(
                        StringLiteral(
                            ExprStringLiteral {
                                node_index: AtomicNodeIndex(..),
                                range: 111..118,
                                value: StringLiteralValue {
                                    inner: Single(
                                        StringLiteral {
                                            range: 111..118,
                                            node_index: AtomicNodeIndex(..),
                                            value: "error",
                                            flags: StringLiteralFlags {
                                                quote_style: Double,
                                                prefix: Empty,
                                                triple_quoted: false,
                                            },
                                        },
                                    ),
                                },
                            },
                        ),
                    ),
                },
            ),
            Assert(
                StmtAssert {
                    node_index: AtomicNodeIndex(..),
                    range: 119..140,
                    test: Name(
                        ExprName {
                            node_index: AtomicNodeIndex(..),
                            range: 126..127,
                            id: Name("x"),
                            ctx: Load,
                        },
                    ),
                    msg: Some(
                        Lambda(
                            ExprLambda {
                                node_index: AtomicNodeIndex(..),
                                range: 129..140,
                                parameters: Some(
                                    Parameters {
                                        range: 136..137,
                                        node_index: AtomicNodeIndex(
                                            0,
                                        ),
                                        posonlyargs: [],
                                        args: [
                                            ParameterWithDefault {
                                                range: 136..137,
                                                node_index: AtomicNodeIndex(..),
                                                parameter: Parameter {
                                                    range: 136..137,
                                                    node_index: AtomicNodeIndex(..),
                                                    name: Identifier {
                                                        id: Name("x"),
                                                        range: 136..137,
                                                        node_index: AtomicNodeIndex(..),
                                                    },
                                                    annotation: None,
                                                },
                                                default: None,
                                            },
                                        ],
                                        vararg: None,
                                        kwonlyargs: [],
                                        kwarg: None,
                                    },
                                ),
                                body: Name(
                                    ExprName {
                                        node_index: AtomicNodeIndex(..),
                                        range: 139..140,
                                        id: Name("y"),
                                        ctx: Load,
                                    },
                                ),
                            },
                        ),
                    ),
                },
            ),
            Assert(
                StmtAssert {
                    node_index: AtomicNodeIndex(..),
                    range: 141..158,
                    test: Name(
                        ExprName {
                            node_index: AtomicNodeIndex(..),
                            range: 148..149,
                            id: Name("x"),
                            ctx: Load,
                        },
                    ),
                    msg: Some(
                        Await(
                            ExprAwait {
                                node_index: AtomicNodeIndex(..),
                                range: 151..158,
                                value: Name(
                                    ExprName {
                                        node_index: AtomicNodeIndex(..),
                                        range: 157..158,
                                        id: Name("x"),
                                        ctx: Load,
                                    },
                                ),
                            },
                        ),
                    ),
                },
            ),
            Assert(
                StmtAssert {
                    node_index: AtomicNodeIndex(..),
                    range: 159..185,
                    test: Name(
                        ExprName {
                            node_index: AtomicNodeIndex(..),
                            range: 166..167,
                            id: Name("x"),
                            ctx: Load,
                        },
                    ),
                    msg: Some(
                        If(
                            ExprIf {
                                node_index: AtomicNodeIndex(..),
                                range: 169..185,
                                test: BooleanLiteral(
                                    ExprBooleanLiteral {
                                        node_index: AtomicNodeIndex(..),
                                        range: 174..178,
                                        value: true,
                                    },
                                ),
                                body: Name(
                                    ExprName {
                                        node_index: AtomicNodeIndex(..),
                                        range: 169..170,
                                        id: Name("x"),
                                        ctx: Load,
                                    },
                                ),
                                orelse: Name(
                                    ExprName {
                                        node_index: AtomicNodeIndex(..),
                                        range: 184..185,
                                        id: Name("y"),
                                        ctx: Load,
                                    },
                                ),
                            },
                        ),
                    ),
                },
            ),
        ],
    },
)
```