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test(server): the text generation's fake Claude CLI is a fixture file, not a generated string #15479

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Merged
juliusmarminge merged 1 commit into from
Oct 4, 2026
Merged

test(server): the text generation's fake Claude CLI is a fixture file, not a generated string #15479

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80 changes: 6 additions & 74 deletions apps/server/src/textGeneration/ClaudeTextGeneration.test.ts
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -34,86 +34,18 @@ const ClaudeTextGenerationTestLayer = ServerConfig.ServerConfig.layerTest(proces
function makeFakeClaudeBinary(dir: string) {
return Effect.gen(function* () {
const path = yield* Path.Path;
const fs = yield* FileSystem.FileSystem;
const platform = yield* HostProcessPlatform;
const binDir = path.join(dir, "bin");
const fixturePath = yield* path.fromFileUrl(
new URL("./testing/ClaudeTextGeneration.fixture.mjs", import.meta.url),
);
const source = yield* fs.readFileString(fixturePath);
writeFakeCli({
directory: binDir,
name: "claude",
platform,
source: [
"const argv = process.argv.slice(2);",
'const args = argv.join(" ");',
'const { realpathSync } = await import("node:fs");',
"",
"function fail(message, code) {",
' process.stderr.write(message + "\\n");',
" process.exit(code);",
"}",
"",
'const permissionIndex = argv.indexOf("--permission-mode");',
'if (permissionIndex === -1 || argv[permissionIndex + 1] !== "dontAsk") {',
' fail("text generation must deny permission prompts", 12);',
"}",
'const toolsIndex = argv.indexOf("--tools");',
'if (toolsIndex === -1 || argv[toolsIndex + 1] !== "") {',
' fail("text generation must receive an explicit empty tool set", 6);',
"}",
'if (argv.includes("--dangerously-skip-permissions")) {',
' fail("text generation must not bypass permissions", 7);',
"}",
'if (!argv.includes("--disable-slash-commands")) {',
' fail("text generation must disable skills", 8);',
"}",
'if (!argv.includes("--strict-mcp-config")) {',
' fail("text generation must not load configured MCP servers", 9);',
"}",
'const settingsIndex = argv.indexOf("--settings");',
"if (settingsIndex === -1 || JSON.parse(argv[settingsIndex + 1]).disableAllHooks !== true) {",
' fail("text generation must disable hooks", 10);',
"}",
"const cwdMustNotBe = process.env.T3_FAKE_CLAUDE_CWD_MUST_NOT_BE;",
"if (cwdMustNotBe && realpathSync(process.cwd()) === realpathSync(cwdMustNotBe)) {",
' fail("text generation ran in the project directory", 11);',
"}",
"",
'let stdinContent = "";',
"if (!process.stdin.isTTY) {",
" const chunks = [];",
" for await (const chunk of process.stdin) {",
" chunks.push(chunk);",
" }",
' stdinContent = Buffer.concat(chunks).toString("utf8");',
"}",
"",
"const argsMustContain = process.env.T3_FAKE_CLAUDE_ARGS_MUST_CONTAIN;",
"if (argsMustContain && !args.includes(argsMustContain)) {",
' fail("args missing expected content", 2);',
"}",
"",
"const argsMustNotContain = process.env.T3_FAKE_CLAUDE_ARGS_MUST_NOT_CONTAIN;",
"if (argsMustNotContain && args.includes(argsMustNotContain)) {",
' fail("args contained forbidden content", 3);',
"}",
"",
"const stdinMustContain = process.env.T3_FAKE_CLAUDE_STDIN_MUST_CONTAIN;",
"if (stdinMustContain && !stdinContent.includes(stdinMustContain)) {",
' fail("stdin missing expected content", 4);',
"}",
"",
"const configDirMustBe = process.env.T3_FAKE_CLAUDE_CONFIG_DIR_MUST_BE;",
"if (configDirMustBe && process.env.CLAUDE_CONFIG_DIR !== configDirMustBe) {",
' fail("CLAUDE_CONFIG_DIR was " + (process.env.CLAUDE_CONFIG_DIR ?? ""), 5);',
"}",
"",
"const stderrText = process.env.T3_FAKE_CLAUDE_STDERR;",
"if (stderrText) {",
' process.stderr.write(stderrText + "\\n");',
"}",
"",
'process.stdout.write(process.env.T3_FAKE_CLAUDE_OUTPUT ?? "");',
"process.exitCode = Number(process.env.T3_FAKE_CLAUDE_EXIT_CODE ?? 0);",
"",
].join("\n"),
source,
});
return binDir;
});
Expand Down
72 changes: 72 additions & 0 deletions apps/server/src/textGeneration/testing/ClaudeTextGeneration.fixture.mjs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,72 @@
import * as NodeFS from "node:fs";

const argv = process.argv.slice(2);
const args = argv.join(" ");

function fail(message, code) {
process.stderr.write(message + "\n");
process.exit(code);
}

const permissionIndex = argv.indexOf("--permission-mode");
if (permissionIndex === -1 || argv[permissionIndex + 1] !== "dontAsk") {
fail("text generation must deny permission prompts", 12);
}
const toolsIndex = argv.indexOf("--tools");
if (toolsIndex === -1 || argv[toolsIndex + 1] !== "") {
fail("text generation must receive an explicit empty tool set", 6);
}
if (argv.includes("--dangerously-skip-permissions")) {
fail("text generation must not bypass permissions", 7);
}
if (!argv.includes("--disable-slash-commands")) {
fail("text generation must disable skills", 8);
}
if (!argv.includes("--strict-mcp-config")) {
fail("text generation must not load configured MCP servers", 9);
}
const settingsIndex = argv.indexOf("--settings");
if (settingsIndex === -1 || JSON.parse(argv[settingsIndex + 1]).disableAllHooks !== true) {
fail("text generation must disable hooks", 10);
}
const cwdMustNotBe = process.env.T3_FAKE_CLAUDE_CWD_MUST_NOT_BE;
if (cwdMustNotBe && NodeFS.realpathSync(process.cwd()) === NodeFS.realpathSync(cwdMustNotBe)) {
fail("text generation ran in the project directory", 11);
}

let stdinContent = "";
if (!process.stdin.isTTY) {
const chunks = [];
for await (const chunk of process.stdin) {
chunks.push(chunk);
}
stdinContent = Buffer.concat(chunks).toString("utf8");
}

const argsMustContain = process.env.T3_FAKE_CLAUDE_ARGS_MUST_CONTAIN;
if (argsMustContain && !args.includes(argsMustContain)) {
fail("args missing expected content", 2);
}

const argsMustNotContain = process.env.T3_FAKE_CLAUDE_ARGS_MUST_NOT_CONTAIN;
if (argsMustNotContain && args.includes(argsMustNotContain)) {
fail("args contained forbidden content", 3);
}

const stdinMustContain = process.env.T3_FAKE_CLAUDE_STDIN_MUST_CONTAIN;
if (stdinMustContain && !stdinContent.includes(stdinMustContain)) {
fail("stdin missing expected content", 4);
}

const configDirMustBe = process.env.T3_FAKE_CLAUDE_CONFIG_DIR_MUST_BE;
if (configDirMustBe && process.env.CLAUDE_CONFIG_DIR !== configDirMustBe) {
fail("CLAUDE_CONFIG_DIR was " + (process.env.CLAUDE_CONFIG_DIR ?? ""), 5);
}

const stderrText = process.env.T3_FAKE_CLAUDE_STDERR;
if (stderrText) {
process.stderr.write(stderrText + "\n");
}

process.stdout.write(process.env.T3_FAKE_CLAUDE_OUTPUT ?? "");
process.exitCode = Number(process.env.T3_FAKE_CLAUDE_EXIT_CODE ?? 0);
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