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Test scrolling down with block decorations

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This commit is contained in:
Antonio Scandurra
2017-04-05 16:38:02 +02:00
parent e289283205
commit 015f196f2f
1 changed files with 35 additions and 7 deletions
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42
spec/text-editor-component-spec.js
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@@ -1159,16 +1159,18 @@ describe('TextEditorComponent', () => {
describe('block decorations', () => {
ffit('renders visible and yet-to-be-measured block decorations, inserting them between the appropriate lines and refreshing them as needed', async () => {
const editor = buildEditor({autoHeight: false})
const {item: item1, decoration: decoration1} = createBlockDecorationAtScreenRow(editor, 0, {height: 80, position: 'before'})
const {item: item2, decoration: decoration2} = createBlockDecorationAtScreenRow(editor, 2, {height: 40, margin: 12, position: 'before'})
const {item: item3, decoration: decoration3} = createBlockDecorationAtScreenRow(editor, 4, {height: 100, position: 'before'})
const {item: item4, decoration: decoration4} = createBlockDecorationAtScreenRow(editor, 7, {height: 120, position: 'before'})
const {item: item5, decoration: decoration5} = createBlockDecorationAtScreenRow(editor, 7, {height: 42, position: 'after'})
const {item: item6, decoration: decoration6} = createBlockDecorationAtScreenRow(editor, 12, {height: 22, position: 'after'})
const {item: item1, decoration: decoration1} = createBlockDecorationAtScreenRow(editor, 0, {height: 11, position: 'before'})
const {item: item2, decoration: decoration2} = createBlockDecorationAtScreenRow(editor, 2, {height: 22, margin: 10, position: 'before'})
const {item: item3, decoration: decoration3} = createBlockDecorationAtScreenRow(editor, 4, {height: 33, position: 'before'})
const {item: item4, decoration: decoration4} = createBlockDecorationAtScreenRow(editor, 7, {height: 44, position: 'before'})
const {item: item5, decoration: decoration5} = createBlockDecorationAtScreenRow(editor, 7, {height: 55, position: 'after'})
const {item: item6, decoration: decoration6} = createBlockDecorationAtScreenRow(editor, 12, {height: 66, position: 'after'})
const {component, element} = buildComponent({editor, rowsPerTile: 3})
await setEditorHeightInLines(component, 10)
await setEditorHeightInLines(component, 4)
expect(component.getRenderedStartRow()).toBe(0)
expect(component.getRenderedEndRow()).toBe(6)
expect(component.getScrollHeight()).toBe(
editor.getScreenLineCount() * component.getLineHeight() +
getElementHeight(item1) + getElementHeight(item2) + getElementHeight(item3) +
@@ -1190,6 +1192,32 @@ describe('TextEditorComponent', () => {
expect(element.contains(item4)).toBe(false)
expect(element.contains(item5)).toBe(false)
expect(element.contains(item6)).toBe(false)
// scroll past the first tile
await setScrollTop(component, 3 * component.getLineHeight() + getElementHeight(item1) + getElementHeight(item2))
expect(component.getRenderedStartRow()).toBe(3)
expect(component.getRenderedEndRow()).toBe(9)
expect(component.getScrollHeight()).toBe(
editor.getScreenLineCount() * component.getLineHeight() +
getElementHeight(item1) + getElementHeight(item2) + getElementHeight(item3) +
getElementHeight(item4) + getElementHeight(item5) + getElementHeight(item6)
)
expect(tileNodeForScreenRow(component, 3).offsetHeight).toBe(
3 * component.getLineHeight() + getElementHeight(item3)
)
expect(tileNodeForScreenRow(component, 6).offsetHeight).toBe(
3 * component.getLineHeight() + getElementHeight(item4) + getElementHeight(item5)
)
expect(element.querySelectorAll('.line').length).toBe(6)
expect(element.contains(item1)).toBe(false)
expect(element.contains(item2)).toBe(false)
expect(item3.previousSibling).toBe(lineNodeForScreenRow(component, 3))
expect(item3.nextSibling).toBe(lineNodeForScreenRow(component, 4))
expect(item4.previousSibling).toBe(lineNodeForScreenRow(component, 6))
expect(item4.nextSibling).toBe(lineNodeForScreenRow(component, 7))
expect(item5.previousSibling).toBe(lineNodeForScreenRow(component, 7))
expect(item5.nextSibling).toBe(lineNodeForScreenRow(component, 8))
expect(element.contains(item6)).toBe(false)
})
function createBlockDecorationAtScreenRow(editor, screenRow, {height, margin, position}) {