frontend/lib/src/components/widgets/DataFrame/columns/ImageColumn.test.ts - develop - vshmidt/streamlit

frontend/lib/src/components/widgets/DataFrame/columns/ImageColumn.test.ts
100 строк3 KB
Ken McGrady
Update copyright header to 2026 (#13491)
02 янв 2026, 16:21
02 янв 2026, 16:21374540a
/**
 * Copyright (c) Streamlit Inc. (2018-2022) Snowflake Inc. (2022-2026)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { GridCellKind, ImageCell } from "@glideapps/glide-data-grid"
import { Field, Utf8 } from "apache-arrow"

import { DataFrameCellType } from "~lib/dataframes/arrowTypeUtils"

import ImageColumn from "./ImageColumn"

const MOCK_IMAGE_COLUMN_PROPS = {
  id: "1",
  name: "image_column",
  title: "Image column",
  indexNumber: 0,
  isEditable: false,
  isHidden: false,
  isIndex: false,
  isPinned: false,
  isStretched: false,
  arrowType: {
    type: DataFrameCellType.DATA,
    arrowField: new Field("image_column", new Utf8(), true),
    pandasType: {
      field_name: "image_column",
      name: "image_column",
      pandas_type: "unicode",
      numpy_type: "object",
      metadata: null,
    },
  },
}

describe("ImageColumn", () => {
  it("creates a valid column instance", () => {
    const mockColumn = ImageColumn(MOCK_IMAGE_COLUMN_PROPS)
    expect(mockColumn.kind).toEqual("image")
    expect(mockColumn.title).toEqual(MOCK_IMAGE_COLUMN_PROPS.title)
    expect(mockColumn.id).toEqual(MOCK_IMAGE_COLUMN_PROPS.id)
    expect(mockColumn.sortMode).toEqual("default")

    const mockCell = mockColumn.getCell(
      "https://streamlit.io/images/brand/streamlit-logo-primary-colormark-darktext.png"
    )
    expect(mockCell.kind).toEqual(GridCellKind.Image)
    expect(mockCell.contentAlign).toEqual("center")
    expect((mockCell as ImageCell).data).toEqual([
      "https://streamlit.io/images/brand/streamlit-logo-primary-colormark-darktext.png",
    ])
  })

  it("ignores isEditable configuration", () => {
    const mockColumn = ImageColumn({
      ...MOCK_IMAGE_COLUMN_PROPS,
      isEditable: true,
    })

    // Column should be readonly, even if isEditable was true
    expect(mockColumn.isEditable).toEqual(false)
  })

  it.each([
    // Image column supports the
    // same conversions as the text column:
    [
      "https://streamlit.io/images/brand/streamlit-logo-primary-colormark-darktext.png",
      "https://streamlit.io/images/brand/streamlit-logo-primary-colormark-darktext.png",
    ],
    ["/foo", "/foo"],
    ["", ""],
    [[], ""],
    [
      "data:image/png;base64,iVBORw0KGgoAAAAAAAAyCAYAAAAUYybjAAAgAElE...",
      "data:image/png;base64,iVBORw0KGgoAAAAAAAAyCAYAAAAUYybjAAAgAElE...",
    ],
    [null, null],
    [undefined, null],
  ])(
    "supports string-compatible value (%p parsed as %p)",
    // eslint-disable-next-line @typescript-eslint/no-explicit-any -- TODO: Replace 'any' with a more specific type.
    (input: any, value: string | null) => {
      const mockColumn = ImageColumn(MOCK_IMAGE_COLUMN_PROPS)
      const cell = mockColumn.getCell(input)
      expect(mockColumn.getCellValue(cell)).toEqual(value)
    }
  )
})