Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 | 912x 912x 912x 912x 912x 912x 4x 908x 912x 912x 912x 5750x 5750x 5750x 5750x 5750x 5742x 5742x 5742x 5742x 5750x 5750x 41065x 41065x 41065x 41065x 41065x 41049x 41049x 41049x 41049x 41065x 20213x 20213x 20213x 20213x 20213x 20213x 20213x 20213x 20213x 43773x 20213x 20213x 20213x 43777x 43773x 116519x 90588x | import { resolve, dirname } from "node:path";
import { fileURLToPath } from "node:url";
import { type Needle, type TraceMap } from "@jridgewell/trace-mapping";
import {
type CoverageMapData as IstanbulCoverageMapData,
type FileCoverageData,
} from "istanbul-lib-coverage";
// https://github.com/istanbuljs/istanbuljs/blob/main/docs/raw-output.md#branch-types
export type Branch = "if" | "binary-expr" | "cond-expr" | "switch" | "default-arg";
export type CoverageMapData = IstanbulCoverageMapData & {
[key: string]: FileCoverageData;
};
type FileCoverageDataWithMeta = FileCoverageData & { meta: Meta };
type Meta = {
lastFunction: number;
lastBranch: number;
lastStatement: number;
seen: Record<string, number>;
};
export function createCoverageMapData(filename: string, sourceMap: TraceMap) {
const data: CoverageMapData = {};
const directory = dirname(filename);
for (const source of sourceMap.sources) {
let path = filename;
Eif (source) {
if (source.startsWith("file://")) {
path = fileURLToPath(source);
} else {
path = resolve(directory, source);
}
}
const meta: Meta = {
lastBranch: 0,
lastFunction: 0,
lastStatement: 0,
seen: {},
};
data[path] = {
path,
statementMap: {},
fnMap: {},
branchMap: {},
s: {},
f: {},
b: {},
// @ts-expect-error -- internal
meta,
};
}
return data;
}
export function addFunction(options: {
coverageMapData: CoverageMapData;
filename: string;
name?: string;
covered?: number;
decl: { start: Needle; end: Needle };
loc: { start: Needle; end: Needle };
}) {
const fileCoverage = options.coverageMapData[options.filename];
const meta = (fileCoverage as FileCoverageDataWithMeta).meta;
const key = `f:${cacheKey(options.decl)}`;
let index = meta.seen[key];
if (index == null) {
index = meta.lastFunction;
meta.lastFunction++;
meta.seen[key] = index;
fileCoverage.fnMap[index] = {
name: options.name || `(anonymous_${index})`,
decl: pickLocation(options.decl),
loc: pickLocation(options.loc),
line: options.loc.start.line,
};
}
fileCoverage.f[index] ||= 0;
fileCoverage.f[index] += options.covered || 0;
}
export function addStatement(options: {
coverageMapData: CoverageMapData;
filename: string;
covered?: number;
loc: { start: Needle; end: Needle };
}) {
const fileCoverage = options.coverageMapData[options.filename];
const meta = (fileCoverage as FileCoverageDataWithMeta).meta;
const key = `s:${cacheKey(options.loc)}`;
let index = meta.seen[key];
if (index == null) {
index = meta.lastStatement;
meta.lastStatement++;
meta.seen[key] = index;
fileCoverage.statementMap[index] = pickLocation(options.loc);
}
fileCoverage.s[index] = options.covered || 0;
}
export function addBranch(options: {
coverageMapData: CoverageMapData;
filename: string;
type: Branch;
loc: { start: Needle; end: Needle };
locations: { start: Partial<Needle>; end: Partial<Needle> }[];
covered?: number[];
}) {
const fileCoverage = options.coverageMapData[options.filename];
const meta = (fileCoverage as FileCoverageDataWithMeta).meta;
const key = ["b", ...options.locations.map(cacheKey)].join(":");
let index = meta.seen[key];
Eif (index == null) {
index = meta.lastBranch;
meta.lastBranch++;
meta.seen[key] = index;
fileCoverage.branchMap[index] = {
loc: pickLocation(options.loc),
type: options.type,
// @ts-expect-error -- Istanbul cheats types for implicit else
locations: options.locations.map((loc) => pickLocation(loc)),
line: options.loc.start.line,
};
}
Eif (!fileCoverage.b[index]) {
fileCoverage.b[index] = Array(options.locations.length).fill(0);
}
options.covered?.forEach((hit, i) => {
if (fileCoverage.b[index][i] !== undefined) {
fileCoverage.b[index][i] += hit;
}
});
}
function pickLocation(loc: { start: Needle; end: Needle }) {
return {
start: { line: loc.start.line, column: loc.start.column },
end: { line: loc.end.line, column: loc.end.column },
};
}
function cacheKey(loc: { start: Partial<Needle>; end: Partial<Needle> }) {
return `${loc.start.line}:${loc.start.column}:${loc.end.line}:${loc.end.column}`;
}
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