toMatchMarkdownTableFile

Asserts that tabular data matches a Markdown file snapshot. The value is serialized to a Markdown table and compared to a stored validation file.

Usage

Array-Based Rows

Use Table.define to define the actual Markdown table:

import { Table } from "@cronn/vitest-file-snapshots";

test("matches Markdown table", () => {
  expect(
    Table.define({
      columns: ["input", "output"],
      rows: [
        ["input 1", "output 1"],
        ["input 2", "output 2"],
      ],
    }),
  ).toMatchMarkdownTableFile();
});

Output:

matches_Markdown_table.md

| input   | output   |
| ------- | -------- |
| input 1 | output 1 |
| input 2 | output 2 |

Record-Based Rows

Use Table.fromRecords to define the actual Markdown table by an array of records:

import { Table } from "@cronn/vitest-file-snapshots";

test("matches Markdown table from records", () => {
  expect(
    Table.fromRecords([
      { input: "input 1", output: "output 1" },
      { input: "input 2", output: "output 2" },
    ]),
  ).toMatchMarkdownTableFile();
});

Output:

matches_Markdown_table_from_records.md

| input   | output   |
| ------- | -------- |
| input 1 | output 1 |
| input 2 | output 2 |

The columns are derived from the keys while the rows are derived from the values.

Options

Option	Default Value	Description
name	undefined	Unique name of the file snapshot. Used to distinguish multiple file snapshots within the same test. See Named Snapshots.
normalizers	[]	Custom normalizers to apply before serialization. See Normalization of Snapshots.
resolveFilePath	resolveNameAsFile	Custom resolver for the file path used to store snapshots. See File Path Resolvers.