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import {
formatCodeFrame,
groupCodeFrameLines,
parseLineNumberFromCodeFrameLine,
} from './parse-code-frame'
describe('parse line numbers', () => {
it('parse line numbers from code frame', () => {
const input = {
stackFrame: {
file: 'app/page.tsx',
line1: 2,
column1: 9,
methodName: 'Page',
arguments: [],
ignored: false,
},
// 1 | export default function Page() {
// > 2 | throw new Error('test error')
// | ^
// 3 | return <p>hello world</p>
// 4 | }
codeFrame:
"\u001b[0m \u001b[90m 1 |\u001b[39m \u001b[36mexport\u001b[39m \u001b[36mdefault\u001b[39m \u001b[36mfunction\u001b[39m \u001b[33mPage\u001b[39m() {\u001b[0m\n\u001b[0m\u001b[31m\u001b[1m>\u001b[22m\u001b[39m\u001b[90m 2 |\u001b[39m \u001b[36mthrow\u001b[39m \u001b[36mnew\u001b[39m \u001b[33mError\u001b[39m(\u001b[32m'test error'\u001b[39m)\u001b[0m\n\u001b[0m \u001b[90m |\u001b[39m \u001b[31m\u001b[1m^\u001b[22m\u001b[39m\u001b[0m\n\u001b[0m \u001b[90m 3 |\u001b[39m \u001b[36mreturn\u001b[39m \u001b[33m<\u001b[39m\u001b[33mp\u001b[39m\u001b[33m>\u001b[39mhello world\u001b[33m<\u001b[39m\u001b[33m/\u001b[39m\u001b[33mp\u001b[39m\u001b[33m>\u001b[39m\u001b[0m\n\u001b[0m \u001b[90m 4 |\u001b[39m }\u001b[0m\n\u001b[0m \u001b[90m 5 |\u001b[39m\u001b[0m",
}
const formattedFrame = formatCodeFrame(input.codeFrame)
const decodedLines = groupCodeFrameLines(formattedFrame)
expect(
parseLineNumberFromCodeFrameLine(decodedLines[0], input.stackFrame)
).toEqual({
lineNumber: '1',
isErroredLine: false,
})
expect(
parseLineNumberFromCodeFrameLine(decodedLines[1], input.stackFrame)
).toEqual({
lineNumber: '2',
isErroredLine: true,
})
// Line of ^ marker
expect(
parseLineNumberFromCodeFrameLine(decodedLines[2], input.stackFrame)
).toEqual({
lineNumber: '',
isErroredLine: false,
})
})
it('parse line numbers when a token contains both break and spaces', () => {
// 4 | return (
// 5 | <p>
// > 6 | <p>nest</p>
// | ^
// 7 | </p>
// 8 | )
// 9 | }
const input = {
stackFrame: {
file: 'app/page.tsx',
line1: 6,
column1: 7,
methodName: 'Page',
arguments: [],
},
codeFrame: `"\u001b[0m \u001b[90m 4 |\u001b[39m \u001b[36mreturn\u001b[39m (\n \u001b[90m 5 |\u001b[39m \u001b[33m<\u001b[39m\u001b[33mp\u001b[39m\u001b[33m>\u001b[39m\n\u001b[31m\u001b[1m>\u001b[22m\u001b[39m\u001b[90m 6 |\u001b[39m \u001b[33m<\u001b[39m\u001b[33mp\u001b[39m\u001b[33m>\u001b[39mnest\u001b[33m<\u001b[39m\u001b[33m/\u001b[39m\u001b[33mp\u001b[39m\u001b[33m>\u001b[39m\n \u001b[90m |\u001b[39m \u001b[31m\u001b[1m^\u001b[22m\u001b[39m\n \u001b[90m 7 |\u001b[39m \u001b[33m<\u001b[39m\u001b[33m/\u001b[39m\u001b[33mp\u001b[39m\u001b[33m>\u001b[39m\n \u001b[90m 8 |\u001b[39m )\n \u001b[90m 9 |\u001b[39m }\u001b[0m"`,
}
const formattedFrame = formatCodeFrame(input.codeFrame)
const decodedLines = groupCodeFrameLines(formattedFrame)
expect(
parseLineNumberFromCodeFrameLine(decodedLines[1], input.stackFrame)
).toEqual({
lineNumber: '5',
isErroredLine: false,
})
expect(
parseLineNumberFromCodeFrameLine(decodedLines[2], input.stackFrame)
).toEqual({
lineNumber: '6',
isErroredLine: true,
})
expect(
parseLineNumberFromCodeFrameLine(decodedLines[4], input.stackFrame)
).toEqual({
lineNumber: '7',
isErroredLine: false,
})
})
})
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