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test: tighten wsl detection coverage

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This commit is contained in:
Peter Steinberger 2026-03-14 00:41:22 +00:00
parent 4eb279036a
commit 576134ec73
1 changed files with 20 additions and 0 deletions
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20
src/infra/wsl.test.ts
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@ -59,6 +59,13 @@ describe("wsl detection", () => {
expect(readFileSyncMock).toHaveBeenCalledWith("/proc/version", "utf8");
});
it("returns false when sync detection cannot read /proc/version", () => {
readFileSyncMock.mockImplementationOnce(() => {
throw new Error("ENOENT");
});
expect(isWSLSync()).toBe(false);
});
it.each(["Linux version 6.6.0-1-microsoft-standard-WSL2", "Linux version 6.6.0-1-wsl2"])(
"detects WSL2 sync from kernel version: %s",
(kernelVersion) => {
@ -68,6 +75,12 @@ describe("wsl detection", () => {
},
);
it("returns false for WSL2 sync when WSL is detected but no WSL2 markers exist", () => {
readFileSyncMock.mockReturnValueOnce("Linux version 4.4.0-19041-Microsoft");
readFileSyncMock.mockReturnValueOnce("Linux version 4.4.0-19041-Microsoft");
expect(isWSL2Sync()).toBe(false);
});
it("returns false for sync detection on non-linux platforms", () => {
setPlatform("darwin");
expect(isWSLSync()).toBe(false);
@ -88,6 +101,13 @@ describe("wsl detection", () => {
expect(readFileMock).toHaveBeenCalledTimes(2);
});
it("short-circuits async detection from WSL env vars without reading osrelease", async () => {
process.env.WSL_DISTRO_NAME = "Ubuntu";
await expect(isWSL()).resolves.toBe(true);
expect(readFileMock).not.toHaveBeenCalled();
});
it("returns false when async WSL detection cannot read osrelease", async () => {
readFileMock.mockRejectedValueOnce(new Error("ENOENT"));
await expect(isWSL()).resolves.toBe(false);