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vortex-data / vortex / 16935267080

13 Aug 2025 11:00AM UTC coverage: 24.312% (-63.3%) from 87.658%
16935267080

Pull #4226

github

web-flow
Merge 81b48c7fb into baa6ea202
Pull Request #4226: Support converting TimestampTZ to and from duckdb

0 of 2 new or added lines in 1 file covered. (0.0%)

20666 existing lines in 469 files now uncovered.

8726 of 35892 relevant lines covered (24.31%)

147.74 hits per line

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0.0
/vortex-array/src/array/display/mod.rs
1
// SPDX-License-Identifier: Apache-2.0
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// SPDX-FileCopyrightText: Copyright the Vortex contributors
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//! Convert an array into a human-readable string representation.
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5
mod tree;
6

7
use std::fmt::Display;
8

9
use itertools::Itertools as _;
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use tree::TreeDisplayWrapper;
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use vortex_error::VortexExpect as _;
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use crate::Array;
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/// Describe how to convert an array to a string.
16
///
17
/// See also:
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/// [Array::display_as](../trait.Array.html#method.display_as)
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/// and [DisplayArrayAs].
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pub enum DisplayOptions {
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    /// Only the top-level encoding id and limited metadata: `vortex.primitive(i16, len=5)`.
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    ///
23
    /// ```
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    /// # use vortex_array::display::DisplayOptions;
25
    /// # use vortex_array::IntoArray;
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    /// # use vortex_buffer::buffer;
27
    /// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
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    /// assert_eq!(
29
    ///     format!("{}", array.display_as(DisplayOptions::MetadataOnly)),
30
    ///     "vortex.primitive(i16, len=5)",
31
    /// );
32
    /// ```
33
    MetadataOnly,
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    /// Only the logical values of the array: `[0i16, 1i16, 2i16, 3i16, 4i16]`.
35
    ///
36
    /// ```
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    /// # use vortex_array::display::DisplayOptions;
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    /// # use vortex_array::IntoArray;
39
    /// # use vortex_buffer::buffer;
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    /// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
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    /// assert_eq!(
42
    ///     format!("{}", array.display_as(DisplayOptions::default())),
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    ///     "[0i16, 1i16, 2i16, 3i16, 4i16]",
44
    /// );
45
    /// assert_eq!(
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    ///     format!("{}", array.display_as(DisplayOptions::default())),
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    ///     format!("{}", array.display_values()),
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    /// );
49
    /// ```
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    CommaSeparatedScalars { omit_comma_after_space: bool },
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    /// The tree of encodings and all metadata but no values.
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    ///
53
    /// ```
54
    /// # use vortex_array::display::DisplayOptions;
55
    /// # use vortex_array::IntoArray;
56
    /// # use vortex_buffer::buffer;
57
    /// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
58
    /// let expected = "root: vortex.primitive(i16, len=5) nbytes=10 B (100.00%)
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    ///   metadata: EmptyMetadata
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    ///   buffer (align=2): 10 B (100.00%)
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    /// ";
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    /// assert_eq!(format!("{}", array.display_as(DisplayOptions::TreeDisplay)), expected);
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    /// ```
64
    TreeDisplay,
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    /// Display values in a formatted table with columns.
66
    ///
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    /// For struct arrays, displays a column for each field in the struct.
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    /// For regular arrays, displays a single column with values.
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    ///
70
    /// ```
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    /// # use vortex_array::display::DisplayOptions;
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    /// # use vortex_array::arrays::StructArray;
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    /// # use vortex_array::IntoArray;
74
    /// # use vortex_buffer::buffer;
75
    /// let s = StructArray::from_fields(&[
76
    ///     ("x", buffer![1, 2].into_array()),
77
    ///     ("y", buffer![3, 4].into_array()),
78
    /// ]).unwrap().into_array();
79
    /// let expected = "
80
    /// ┌──────┬──────┐
81
    /// │  x   │  y   │
82
    /// ├──────┼──────┤
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    /// │ 1i32 │ 3i32 │
84
    /// ├──────┼──────┤
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    /// │ 2i32 │ 4i32 │
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    /// └──────┴──────┘".trim();
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    /// assert_eq!(format!("{}", s.display_as(DisplayOptions::TableDisplay)), expected);
88
    /// ```
89
    #[cfg(feature = "table-display")]
90
    TableDisplay,
91
}
92

93
impl Default for DisplayOptions {
94
    fn default() -> Self {
×
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        Self::CommaSeparatedScalars {
×
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            omit_comma_after_space: false,
×
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        }
×
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    }
×
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}
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101
/// A shim used to display an array as specified in the options.
102
///
103
/// See also:
104
/// [Array::display_as](../trait.Array.html#method.display_as)
105
/// and [DisplayOptions].
106
pub struct DisplayArrayAs<'a>(pub &'a dyn Array, pub DisplayOptions);
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impl Display for DisplayArrayAs<'_> {
UNCOV
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    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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UNCOV
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        self.0.fmt_as(f, &self.1)
×
UNCOV
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    }
×
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}
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114
/// Display the encoding and limited metadata of this array.
115
///
116
/// # Examples
117
/// ```
118
/// # use vortex_array::IntoArray;
119
/// # use vortex_buffer::buffer;
120
/// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
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/// assert_eq!(
122
///     format!("{}", array),
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///     "vortex.primitive(i16, len=5)",
124
/// );
125
/// ```
126
impl Display for dyn Array + '_ {
127
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
×
128
        self.fmt_as(f, &DisplayOptions::MetadataOnly)
×
129
    }
×
130
}
131

132
impl dyn Array + '_ {
133
    /// Display logical values of the array
134
    ///
135
    /// For example, an `i16` typed array containing the first five non-negative integers is displayed
136
    /// as: `[0i16, 1i16, 2i16, 3i16, 4i16]`.
137
    ///
138
    /// # Examples
139
    ///
140
    /// ```
141
    /// # use vortex_array::IntoArray;
142
    /// # use vortex_buffer::buffer;
143
    /// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
144
    /// assert_eq!(
145
    ///     format!("{}", array.display_values()),
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    ///     "[0i16, 1i16, 2i16, 3i16, 4i16]",
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    /// )
148
    /// ```
149
    ///
150
    /// See also:
151
    /// [Array::display_as](..//trait.Array.html#method.display_as),
152
    /// [DisplayArrayAs], and [DisplayOptions].
UNCOV
153
    pub fn display_values(&self) -> impl Display {
×
UNCOV
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        DisplayArrayAs(
×
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            self,
×
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            DisplayOptions::CommaSeparatedScalars {
×
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                omit_comma_after_space: false,
×
UNCOV
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            },
×
UNCOV
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        )
×
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    }
×
161

162
    /// Display the array as specified by the options.
163
    ///
164
    /// See [DisplayOptions] for examples.
UNCOV
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    pub fn display_as(&self, options: DisplayOptions) -> impl Display {
×
UNCOV
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        DisplayArrayAs(self, options)
×
UNCOV
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    }
×
168

169
    /// Display the tree of encodings of this array as an indented lists.
170
    ///
171
    /// While some metadata (such as length, bytes and validity-rate) are included, the logical
172
    /// values of the array are not displayed. To view the logical values see
173
    /// [Array::display_as](../trait.Array.html#method.display_as)
174
    /// and [DisplayOptions].
175
    ///
176
    /// # Examples
177
    /// ```
178
    /// # use vortex_array::display::DisplayOptions;
179
    /// # use vortex_array::IntoArray;
180
    /// # use vortex_buffer::buffer;
181
    /// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
182
    /// let expected = "root: vortex.primitive(i16, len=5) nbytes=10 B (100.00%)
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    ///   metadata: EmptyMetadata
184
    ///   buffer (align=2): 10 B (100.00%)
185
    /// ";
186
    /// assert_eq!(format!("{}", array.display_tree()), expected);
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    /// ```
UNCOV
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    pub fn display_tree(&self) -> impl Display {
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UNCOV
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        DisplayArrayAs(self, DisplayOptions::TreeDisplay)
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UNCOV
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    }
×
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    /// Display the array as a formatted table.
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    ///
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    /// For struct arrays, displays a column for each field in the struct.
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    /// For regular arrays, displays a single column with values.
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    ///
197
    /// # Examples
198
    /// ```
199
    /// # #[cfg(feature = "table-display")]
200
    /// # {
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    /// # use vortex_array::arrays::StructArray;
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    /// # use vortex_array::IntoArray;
203
    /// # use vortex_buffer::buffer;
204
    /// let s = StructArray::from_fields(&[
205
    ///     ("x", buffer![1, 2].into_array()),
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    ///     ("y", buffer![3, 4].into_array()),
207
    /// ]).unwrap().into_array();
208
    /// let expected = "
209
    /// ┌──────┬──────┐
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    /// │  x   │  y   │
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    /// ├──────┼──────┤
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    /// │ 1i32 │ 3i32 │
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    /// ├──────┼──────┤
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    /// │ 2i32 │ 4i32 │
215
    /// └──────┴──────┘".trim();
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    /// assert_eq!(format!("{}", s.display_table()), expected);
217
    /// # }
218
    /// ```
219
    #[cfg(feature = "table-display")]
220
    pub fn display_table(&self) -> impl Display {
221
        DisplayArrayAs(self, DisplayOptions::TableDisplay)
222
    }
223

UNCOV
224
    fn fmt_as(&self, f: &mut std::fmt::Formatter, options: &DisplayOptions) -> std::fmt::Result {
×
UNCOV
225
        match options {
×
226
            DisplayOptions::MetadataOnly => {
UNCOV
227
                write!(
×
UNCOV
228
                    f,
×
UNCOV
229
                    "{}({}, len={})",
×
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230
                    self.encoding_id(),
×
UNCOV
231
                    self.dtype(),
×
UNCOV
232
                    self.len()
×
233
                )
234
            }
235
            DisplayOptions::CommaSeparatedScalars {
UNCOV
236
                omit_comma_after_space,
×
237
            } => {
UNCOV
238
                write!(f, "[")?;
×
UNCOV
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                let sep = if *omit_comma_after_space { "," } else { ", " };
×
UNCOV
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                write!(
×
UNCOV
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                    f,
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                    "{}",
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                    (0..self.len())
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                        .map(|i| self.scalar_at(i).vortex_expect("index is in bounds"))
×
UNCOV
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                        .format(sep)
×
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                )?;
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UNCOV
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                write!(f, "]")
×
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            }
UNCOV
249
            DisplayOptions::TreeDisplay => write!(f, "{}", TreeDisplayWrapper(self.to_array())),
×
250
            #[cfg(feature = "table-display")]
251
            DisplayOptions::TableDisplay => {
252
                use crate::canonical::ToCanonical;
253
                let mut builder = tabled::builder::Builder::default();
254

255
                let table = match self.dtype() {
256
                    vortex_dtype::DType::Struct(sf, _) => {
257
                        let struct_ = self.to_struct().vortex_expect("struct array");
258
                        builder.push_record(sf.names().iter().map(|name| name.to_string()));
259

260
                        for row_idx in 0..self.len() {
261
                            if !self.is_valid(row_idx).vortex_expect("index in bounds") {
262
                                let null_row = vec!["null".to_string(); sf.names().len()];
263
                                builder.push_record(null_row);
264
                            } else {
265
                                let mut row = Vec::new();
266
                                for field_array in struct_.fields() {
267
                                    let value = field_array
268
                                        .scalar_at(row_idx)
269
                                        .vortex_expect("index in bounds");
270
                                    row.push(value.to_string());
271
                                }
272
                                builder.push_record(row);
273
                            }
274
                        }
275

276
                        let mut table = builder.build();
277
                        table.with(tabled::settings::Style::modern());
278

279
                        // Center headers
280
                        for col_idx in 0..sf.names().len() {
281
                            table.modify((0, col_idx), tabled::settings::Alignment::center());
282
                        }
283

284
                        for row_idx in 0..self.len() {
285
                            if !self.is_valid(row_idx).vortex_expect("index is in bounds") {
286
                                table.modify(
287
                                    (1 + row_idx, 0),
288
                                    tabled::settings::Span::column(sf.names().len() as isize),
289
                                );
290
                                table.modify(
291
                                    (1 + row_idx, 0),
292
                                    tabled::settings::Alignment::center(),
293
                                );
294
                            }
295
                        }
296
                        table
297
                    }
298
                    _ => {
299
                        // For non-struct arrays, display a single column table without header
300
                        for row_idx in 0..self.len() {
301
                            let value = self.scalar_at(row_idx).vortex_expect("index is in bounds");
302
                            builder.push_record([value.to_string()]);
303
                        }
304

305
                        let mut table = builder.build();
306
                        table.with(tabled::settings::Style::modern());
307

308
                        table
309
                    }
310
                };
311
                write!(f, "{table}")
312
            }
313
        }
UNCOV
314
    }
×
315
}
316

317
#[cfg(test)]
318
mod test {
319
    use vortex_buffer::{Buffer, buffer};
320
    use vortex_dtype::FieldNames;
321

322
    use crate::IntoArray as _;
323
    use crate::arrays::{BoolArray, ListArray, StructArray};
324
    use crate::validity::Validity;
325

326
    #[test]
327
    fn test_primitive() {
328
        let x = Buffer::<u32>::empty().into_array();
329
        assert_eq!(x.display_values().to_string(), "[]");
330

331
        let x = buffer![1].into_array();
332
        assert_eq!(x.display_values().to_string(), "[1i32]");
333

334
        let x = buffer![1, 2, 3, 4].into_array();
335
        assert_eq!(x.display_values().to_string(), "[1i32, 2i32, 3i32, 4i32]");
336
    }
337

338
    #[test]
339
    fn test_empty_struct() {
340
        let s = StructArray::try_new(
341
            FieldNames::from(vec![]),
342
            vec![],
343
            3,
344
            Validity::Array(BoolArray::from_iter([true, false, true]).into_array()),
345
        )
346
        .unwrap()
347
        .into_array();
348
        assert_eq!(s.display_values().to_string(), "[{}, null, {}]");
349
    }
350

351
    #[test]
352
    fn test_simple_struct() {
353
        let s = StructArray::from_fields(&[
354
            ("x", buffer![1, 2, 3, 4].into_array()),
355
            ("y", buffer![-1, -2, -3, -4].into_array()),
356
        ])
357
        .unwrap()
358
        .into_array();
359
        assert_eq!(
360
            s.display_values().to_string(),
361
            "[{x: 1i32, y: -1i32}, {x: 2i32, y: -2i32}, {x: 3i32, y: -3i32}, {x: 4i32, y: -4i32}]"
362
        );
363
    }
364

365
    #[test]
366
    fn test_list() {
367
        let x = ListArray::try_new(
368
            buffer![1, 2, 3, 4].into_array(),
369
            buffer![0, 0, 1, 1, 2, 4].into_array(),
370
            Validity::Array(BoolArray::from_iter([true, true, false, true, true]).into_array()),
371
        )
372
        .unwrap()
373
        .into_array();
374
        assert_eq!(
375
            x.display_values().to_string(),
376
            "[[], [1i32], null, [2i32], [3i32, 4i32]]"
377
        );
378
    }
379

380
    #[test]
381
    #[cfg(feature = "table-display")]
382
    fn test_table_display_primitive() {
383
        use crate::display::DisplayOptions;
384

385
        let array = buffer![1, 2, 3, 4].into_array();
386
        let table_display = array.display_as(DisplayOptions::TableDisplay);
387
        assert_eq!(
388
            table_display.to_string(),
389
            r"
390
┌──────┐
391
│ 1i32 │
392
├──────┤
393
│ 2i32 │
394
├──────┤
395
│ 3i32 │
396
├──────┤
397
│ 4i32 │
398
└──────┘"
399
                .trim()
400
        );
401
    }
402

403
    #[test]
404
    #[cfg(feature = "table-display")]
405
    fn test_table_display() {
406
        use crate::display::DisplayOptions;
407

408
        let array = crate::arrays::PrimitiveArray::from_option_iter(vec![
409
            Some(-1),
410
            Some(-2),
411
            Some(-3),
412
            None,
413
        ])
414
        .into_array();
415

416
        let struct_ = StructArray::try_from_iter_with_validity(
417
            [("x", buffer![1, 2, 3, 4].into_array()), ("y", array)],
418
            Validity::Array(BoolArray::from_iter([true, false, true, true]).into_array()),
419
        )
420
        .unwrap()
421
        .into_array();
422

423
        let table_display = struct_.display_as(DisplayOptions::TableDisplay);
424
        assert_eq!(
425
            table_display.to_string(),
426
            r"
427
┌──────┬───────┐
428
│  x   │   y   │
429
├──────┼───────┤
430
│ 1i32 │ -1i32 │
431
├──────┼───────┤
432
│     null     │
433
├──────┼───────┤
434
│ 3i32 │ -3i32 │
435
├──────┼───────┤
436
│ 4i32 │ null  │
437
└──────┴───────┘"
438
                .trim()
439
        );
440
    }
441
}
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