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import { test } from "node:test";
import { gzipSync } from "node:zlib";
import type { DB, IssueSample } from "@superlog/db";
import type * as schema from "@superlog/db/schema";
import {
findSourceMapArtifact,
symbolicateIssueSample,
symbolicateStacktraceWithArtifact,
symbolicateTelemetrySample,
symbolicationAttrsForSample,
} from "./symbolication.js";
const sourceMap = JSON.stringify({
version: 3,
file: "index.android.bundle",
sources: ["app/index.tsx"],
names: ["HomeScreen"],
mappings: "AAAAA",
});
const artifact = {
id: "artifact-1",
projectId: "project-1",
platform: "android",
release: "juno@1.2.3",
dist: null,
debugId: null,
bundleFile: "index.android.bundle",
mapFile: "index.android.bundle.map",
sourceMapHash: "a".repeat(64),
sourceMapBytes: Buffer.byteLength(sourceMap),
storageBucket: "source-map-bucket",
storageKey: "source-maps/project-1/android/hash.map.gz",
contentEncoding: "gzip",
uploadedByOrgApiKeyId: null,
createdAt: new Date("2026-06-02T00:00:00.000Z"),
updatedAt: new Date("2026-06-02T00:00:00.000Z"),
} satisfies schema.SourceMapArtifact;
test("symbolicateStacktraceWithArtifact rewrites generated stack frames", () => {
const result = symbolicateStacktraceWithArtifact({
stacktrace: "TypeError: bad\n at useMemoCache (index.android.bundle:1:1)",
sourceMap,
artifact,
});
assert.ok(result);
assert.equal(result.stacktrace, "TypeError: bad\n at HomeScreen (app/index.tsx:1:1)");
assert.deepEqual(result.frames[0], {
functionName: "HomeScreen",
source: "app/index.tsx",
line: 1,
column: 1,
generatedFile: "index.android.bundle",
generatedLine: 1,
generatedColumn: 1,
});
});
test("symbolicateStacktraceWithArtifact infers original function names from source content", () => {
const sourceMapWithoutNames = JSON.stringify({
version: 3,
file: "entry.js",
sources: ["/app/(tabs)/index.tsx"],
sourcesContent: [
[
"async function emitError() {",
" const superlog = await ensureSuperlog();",
" superlog?.captureException(new Error('Expo SDK demo error'), { component: 'home' });",
"}",
].join("\n"),
],
names: [],
mappings: "AAAA",
});
const result = symbolicateStacktraceWithArtifact({
stacktrace: "Error: Expo SDK demo error\n at L (entry.js:1:1)",
sourceMap: sourceMapWithoutNames,
artifact: { ...artifact, platform: "web" },
});
assert.ok(result);
assert.equal(
result.stacktrace,
"Error: Expo SDK demo error\n at emitError (/app/(tabs)/index.tsx:1:1)",
);
assert.equal(result.frames[0]?.functionName, "emitError");
});
test("symbolicationAttrsForSample extracts release, platform, dist, and debug id", () => {
const sample = {
kind: "log",
service: "juno",
severity: "ERROR",
message: "bad",
body: "bad",
exceptionType: "TypeError",
topFrame: null,
normalizedFrames: [],
stacktrace: "TypeError: bad\n at index.android.bundle:1:1",
seenAt: "2026-06-02T00:00:00.000Z",
logAttrs: {
"service.version": "juno@1.2.3",
"device.platform": "Android",
"expo.update_id": "update-1",
"sourcemap.debug_id": "debug-1",
},
resourceAttrs: null,
} satisfies IssueSample;
assert.deepEqual(symbolicationAttrsForSample(sample), {
debugId: "debug-1",
release: "juno@1.2.3",
dist: "update-1",
platform: "android",
});
});
test("symbolicateIssueSample loads matching source map object and symbolicates", async () => {
const sample = {
kind: "log",
service: "juno",
severity: "ERROR",
message: "bad",
body: "bad",
exceptionType: "TypeError",
topFrame: null,
normalizedFrames: [],
stacktrace: "TypeError: bad\n at useMemoCache (index.android.bundle:1:1)",
seenAt: "2026-06-02T00:00:00.000Z",
logAttrs: {
"service.version": "juno@1.2.3",
"device.platform": "android",
},
resourceAttrs: null,
} satisfies IssueSample;
const database = {
query: {
sourceMapArtifacts: {
findFirst: async () => null,
findMany: async () => [artifact],
},
},
} as unknown as DB;
const result = await symbolicateIssueSample({
database,
objectReader: {
async getSourceMapObject(input) {
assert.equal(input.bucket, "source-map-bucket");
assert.equal(input.key, "source-maps/project-1/android/hash.map.gz");
return gzipSync(sourceMap);
},
},
projectId: "project-1",
sample,
});
assert.ok(result);
assert.equal(result.artifact.id, "artifact-1");
assert.equal(result.frames[0]?.source, "app/index.tsx");
});
test("symbolicateTelemetrySample symbolicates logs without issue rows", async () => {
const database = {
query: {
sourceMapArtifacts: {
findFirst: async () => null,
findMany: async () => [artifact],
},
},
} as unknown as DB;
const result = await symbolicateTelemetrySample({
database,
objectReader: {
async getSourceMapObject(input) {
assert.equal(input.bucket, "source-map-bucket");
assert.equal(input.key, "source-maps/project-1/android/hash.map.gz");
return gzipSync(sourceMap);
},
},
projectId: "project-1",
sample: {
stacktrace: "TypeError: bad\n at useMemoCache (index.android.bundle:1:1)",
logAttrs: {
"service.version": "juno@1.2.3",
"device.platform": "android",
},
resourceAttrs: null,
},
});
assert.ok(result);
assert.equal(result.artifact.id, "artifact-1");
assert.equal(result.frames[0]?.source, "app/index.tsx");
});
test("symbolicateTelemetrySample returns null when a log has no stacktrace", async () => {
const result = await symbolicateTelemetrySample({
database: {} as DB,
objectReader: null,
projectId: "project-1",
sample: {
stacktrace: null,
logAttrs: null,
resourceAttrs: null,
},
});
assert.equal(result, null);
});
test("findSourceMapArtifact prefers artifact matching generated stack frame file", async () => {
const entryArtifact = {
...artifact,
id: "entry-artifact",
platform: "web",
bundleFile: "dist/_expo/static/js/web/entry-abc123.js",
mapFile: "dist/_expo/static/js/web/entry-abc123.js.map",
createdAt: new Date("2026-06-02T00:00:00.000Z"),
updatedAt: new Date("2026-06-02T00:00:00.000Z"),
} satisfies schema.SourceMapArtifact;
const indexArtifact = {
...artifact,
id: "index-artifact",
platform: "web",
bundleFile: "dist/_expo/static/js/web/index-def456.js",
mapFile: "dist/_expo/static/js/web/index-def456.js.map",
createdAt: new Date("2026-06-02T00:01:00.000Z"),
updatedAt: new Date("2026-06-02T00:01:00.000Z"),
} satisfies schema.SourceMapArtifact;
const database = {
query: {
sourceMapArtifacts: {
findFirst: async () => null,
findMany: async () => [indexArtifact, entryArtifact],
},
},
} as unknown as DB;
const result = await findSourceMapArtifact({
database,
projectId: "project-1",
attrs: {
debugId: null,
release: "juno@1.2.3",
dist: null,
platform: "web",
},
stacktrace:
"TypeError: bad\n at useMemoCache (https://app.example.com/_expo/static/js/web/entry-abc123.js:1:1)",
});
assert.equal(result?.id, "entry-artifact");
});
test("findSourceMapArtifact falls back to generated stack frame file when release is missing", async () => {
const entryArtifact = {
...artifact,
id: "entry-artifact",
platform: "web",
release: "expo-test-2@local",
bundleFile: "dist-superlog/_expo/static/js/web/entry-90d9514ed4f128f73d2feaf2e08ff315.js",
mapFile: "dist-superlog/_expo/static/js/web/entry-90d9514ed4f128f73d2feaf2e08ff315.js.map",
createdAt: new Date("2026-06-02T00:00:00.000Z"),
updatedAt: new Date("2026-06-02T00:00:00.000Z"),
} satisfies schema.SourceMapArtifact;
const database = {
query: {
sourceMapArtifacts: {
findFirst: async () => null,
findMany: async () => [entryArtifact],
},
},
} as unknown as DB;
const result = await findSourceMapArtifact({
database,
projectId: "project-1",
attrs: {
debugId: null,
release: null,
dist: null,
platform: null,
},
stacktrace:
"Error: Expo SDK demo error\n at L (http://localhost:8093/_expo/static/js/web/entry-90d9514ed4f128f73d2feaf2e08ff315.js:1095:1077)",
});
assert.equal(result?.id, "entry-artifact");
});
test("findSourceMapArtifact falls back to generated stack frame file when release attrs do not match upload release", async () => {
const entryArtifact = {
...artifact,
id: "entry-artifact",
platform: "web",
release: "expo-test-2@local",
dist: null,
bundleFile: "dist-superlog/_expo/static/js/web/entry-90d9514ed4f128f73d2feaf2e08ff315.js",
mapFile: "dist-superlog/_expo/static/js/web/entry-90d9514ed4f128f73d2feaf2e08ff315.js.map",
createdAt: new Date("2026-06-02T00:00:00.000Z"),
updatedAt: new Date("2026-06-02T00:00:00.000Z"),
} satisfies schema.SourceMapArtifact;
const database = {
query: {
sourceMapArtifacts: {
findFirst: async () => null,
findMany: async (_query: unknown) => [entryArtifact],
},
},
} as unknown as DB;
const result = await findSourceMapArtifact({
database,
projectId: "project-1",
attrs: {
debugId: null,
release: "1.0.0",
dist: "embedded",
platform: "web",
},
stacktrace:
"Error: Expo SDK demo error\n at L (http://localhost:8093/_expo/static/js/web/entry-90d9514ed4f128f73d2feaf2e08ff315.js:1095:1077)",
});
assert.equal(result?.id, "entry-artifact");
});
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