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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,167 @@ | ||
| import { readFileSync } from "fs"; | ||
| import { createRequire } from "module"; | ||
| import type { NodePath } from "@babel/traverse"; | ||
| import type * as t from "@babel/types"; | ||
| import { z } from "zod"; | ||
| import { getLogger } from "@/log"; | ||
|
|
||
| export const EXPRESSION_PLACEHOLDER = "${...}"; | ||
|
|
||
| export const TestLocationSchema = z.object({ | ||
| testName: z.string(), | ||
| startLine: z.number().int().positive(), | ||
| endLine: z.number().int().positive(), | ||
| }); | ||
| export type TestLocation = z.infer<typeof TestLocationSchema>; | ||
|
|
||
| const TestLocationsSchema = z.array(TestLocationSchema); | ||
|
|
||
| export const parseShortestTestFile = (filePath: string): TestLocation[] => { | ||
| const log = getLogger(); | ||
| try { | ||
| log.setGroup("File Parser"); | ||
| const require = createRequire(import.meta.url); | ||
|
|
||
| const TemplateElementSchema = z.object({ | ||
| value: z.object({ | ||
| cooked: z.string().optional(), | ||
| raw: z.string().optional(), | ||
| }), | ||
| }); | ||
| type TemplateElement = z.infer<typeof TemplateElementSchema>; | ||
|
|
||
| const StringLiteralSchema = z.object({ | ||
| type: z.literal("StringLiteral"), | ||
| value: z.string(), | ||
| }); | ||
|
|
||
| const TemplateLiteralSchema = z.object({ | ||
| type: z.literal("TemplateLiteral"), | ||
| quasis: z.array(TemplateElementSchema), | ||
| }); | ||
|
|
||
| const babelTypes = require("@babel/types"); | ||
| const babelParser = require("@babel/parser"); | ||
| const traverseModule = require("@babel/traverse"); | ||
| const babelTraverse = traverseModule.default || traverseModule; | ||
|
|
||
| const fileContent = readFileSync(filePath, "utf8"); | ||
| const ast = babelParser.parse(fileContent, { | ||
| sourceType: "module", | ||
| plugins: [ | ||
| "typescript", | ||
| "objectRestSpread", | ||
| "optionalChaining", | ||
| "nullishCoalescingOperator", | ||
| ], | ||
| }); | ||
|
|
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| const testLocations: TestLocation[] = []; | ||
|
|
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| const testCallsByLine = new Map< | ||
| number, | ||
| { name: string; node: NodePath<t.CallExpression> } | ||
| >(); | ||
|
|
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| babelTraverse(ast, { | ||
| CallExpression(path: NodePath<t.CallExpression>) { | ||
| const node = path.node; | ||
|
|
||
| if ( | ||
| !node.type || | ||
| node.type !== "CallExpression" || | ||
| !node.callee || | ||
| node.callee.type !== "Identifier" || | ||
| node.callee.name !== "shortest" | ||
| ) { | ||
| return; | ||
| } | ||
|
|
||
| const args = node.arguments || []; | ||
| if (args.length === 0) return; | ||
|
|
||
| const firstArg = args[0]; | ||
| let testName = ""; | ||
|
|
||
| if (babelTypes.isStringLiteral(firstArg)) { | ||
| const parsed = StringLiteralSchema.parse(firstArg); | ||
| testName = parsed.value; | ||
| } else if (babelTypes.isTemplateLiteral(firstArg)) { | ||
| const parsed = TemplateLiteralSchema.parse(firstArg); | ||
| testName = parsed.quasis | ||
| .map( | ||
| (quasi: TemplateElement, i: number, arr: TemplateElement[]) => { | ||
| const str = quasi.value.cooked || quasi.value.raw || ""; | ||
| return i < arr.length - 1 ? str + EXPRESSION_PLACEHOLDER : str; | ||
| }, | ||
| ) | ||
| .join("") | ||
| .replace(/\s+/g, " ") | ||
| .trim(); | ||
| } else { | ||
| return; | ||
| } | ||
|
|
||
| const startLine = node.loc?.start?.line || 0; | ||
| testCallsByLine.set(startLine, { | ||
| name: testName, | ||
| node: path, | ||
| }); | ||
| }, | ||
| }); | ||
|
|
||
| const sortedStartLines = Array.from(testCallsByLine.keys()).sort( | ||
| (a, b) => a - b, | ||
| ); | ||
|
|
||
| for (let i = 0; i < sortedStartLines.length; i++) { | ||
| const currentLine = sortedStartLines[i]; | ||
| const nextLine = sortedStartLines[i + 1] || Number.MAX_SAFE_INTEGER; | ||
| const { name, node } = testCallsByLine.get(currentLine)!; | ||
|
|
||
| let path = node; | ||
| let endLine = path.node.loc?.end?.line || 0; | ||
|
|
||
| let currentPath: NodePath<t.Node> = path; | ||
| while ( | ||
| currentPath.parentPath && | ||
| (currentPath.parentPath.node.loc?.end?.line ?? 0) < nextLine | ||
| ) { | ||
| const parentType = currentPath.parentPath.node.type; | ||
|
|
||
| if (parentType === "ExpressionStatement") { | ||
| endLine = currentPath.parentPath.node.loc?.end?.line || endLine; | ||
| break; | ||
| } | ||
|
|
||
| if ( | ||
| parentType === "CallExpression" || | ||
| parentType === "MemberExpression" | ||
| ) { | ||
| currentPath = currentPath.parentPath; | ||
| endLine = Math.max(endLine, currentPath.node.loc?.end?.line || 0); | ||
| } else { | ||
| endLine = Math.max( | ||
| endLine, | ||
| currentPath.parentPath.node.loc?.end?.line || endLine, | ||
| ); | ||
| break; | ||
| } | ||
| } | ||
| endLine = Math.min(endLine, nextLine - 1); | ||
|
|
||
| const testLocation = TestLocationSchema.parse({ | ||
| testName: name, | ||
| startLine: currentLine, | ||
| endLine, | ||
| }); | ||
| testLocations.push(testLocation); | ||
| } | ||
|
|
||
| log.trace("Test locations", { filePath, testLocations }); | ||
|
|
||
| return TestLocationsSchema.parse(testLocations); | ||
| } finally { | ||
| log.resetGroup(); | ||
| } | ||
| }; |
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