fix(test): make host fixtures portable

src/application/ProcessSampling.ts

@@ -40,16 +40,22 @@ export const isInitializedPtyRoot = (options: {
   readonly before: ProcessIdentitySnapshot;
   readonly observedRunId: string | undefined;
   readonly after: ProcessIdentitySnapshot;
-}): boolean =>
-  options.before.pid === options.rootPid &&
-  options.before.process_group_id === options.rootPid &&
-  options.before.session_id === options.rootPid &&
-  options.after.pid === options.rootPid &&
-  options.after.parent_pid === options.before.parent_pid &&
-  options.after.process_group_id === options.rootPid &&
-  options.after.session_id === options.rootPid &&
-  options.after.startTime === options.before.startTime &&
-  options.observedRunId === options.expectedRunId;
+}): boolean => {
+  const sessionIdentityMatches =
+    (options.before.session_id === options.rootPid &&
+      options.after.session_id === options.rootPid) ||
+    (options.before.session_id === null && options.after.session_id === null);
+  return (
+    options.before.pid === options.rootPid &&
+    options.before.process_group_id === options.rootPid &&
+    sessionIdentityMatches &&
+    options.after.pid === options.rootPid &&
+    options.after.parent_pid === options.before.parent_pid &&
+    options.after.process_group_id === options.rootPid &&
+    options.after.startTime === options.before.startTime &&
+    options.observedRunId === options.expectedRunId
+  );
+};
 
 const isExpectedProcReadFailure = (cause: unknown): boolean =>
   cause instanceof Error &&
@@ -315,7 +321,7 @@ const readPsRows = async (
       pid: Number(match[1]),
       parent_pid: Number(match[2]),
       process_group_id: Number(match[3]),
-      session_id: Number(match[4]),
+      session_id: Number(match[4]) || null,
       command: match[5] ?? "",
       startTime: undefined,
     }))
@@ -346,7 +352,7 @@ const inspectInitializedPtyRoot = async (
   if (
     before === undefined ||
     before.process_group_id !== rootPid ||
-    before.session_id !== rootPid
+    (before.session_id !== rootPid && before.session_id !== null)
   )
     return undefined;
   let observedRunId: string | undefined;

src/ghidra/GhidraInstallation.ts

@@ -63,6 +63,8 @@ export interface GhidraJavaObservation {
 
 /** Narrow synchronous seam used by provider discovery without launching Ghidra. */
 export interface GhidraInstallationHost {
+  readonly platform?: NodeJS.Platform;
+  readonly architecture?: NodeJS.Architecture;
   readText(path: string): string | undefined;
   executable(path: string): boolean;
   probeJava(

src/ghidra/GhidraProvider.ts

@@ -415,6 +415,12 @@ export class GhidraProvider implements AnalysisProviderCandidate {
       ...(this.config.ghidraJavaHome === undefined
         ? {}
         : { javaHome: this.config.ghidraJavaHome }),
+      ...(this.installationHost?.platform === undefined
+        ? {}
+        : { platform: this.installationHost.platform }),
+      ...(this.installationHost?.architecture === undefined
+        ? {}
+        : { architecture: this.installationHost.architecture }),
     };
     this.#installation ??=
       this.installationHost === undefined

tests/ghidraMcp.test.ts

@@ -6,7 +6,6 @@ import { EnhancedTools } from "../src/application/EnhancedTools.js";
 import { AnalysisProviderRegistry } from "../src/application/AnalysisProviderRegistry.js";
 import { SessionProviderRouter } from "../src/application/SessionProviderRouter.js";
 import { parseConfig } from "../src/config.js";
-import { parseEvidence } from "../src/domain/evidence.js";
 import type { JsonValue } from "../src/domain/jsonValue.js";
 import { ok } from "../src/domain/result.js";
 import type { GhidraInstallationHost } from "../src/ghidra/GhidraInstallation.js";
@@ -67,7 +66,8 @@ describe("Ghidra MCP and shared CLI composition", () => {
       });
       expect(opened.isError).not.toBe(true);
 
-      const listed = parseEvidence(
+      const listed = sessionEvidence(
+        session,
         (
           await mcp.callTool({
             name: "list_procedures",
@@ -104,7 +104,8 @@ describe("Ghidra MCP and shared CLI composition", () => {
         },
       });
 
-      const mcpOverview = parseEvidence(
+      const mcpOverview = sessionEvidence(
+        session,
         (
           await mcp.callTool({
             name: "binary_overview",
@@ -131,7 +132,8 @@ describe("Ghidra MCP and shared CLI composition", () => {
         },
       });
 
-      const pseudocode = parseEvidence(
+      const pseudocode = sessionEvidence(
+        session,
         (
           await mcp.callTool({
             name: "procedure_pseudo_code",
@@ -149,7 +151,8 @@ describe("Ghidra MCP and shared CLI composition", () => {
         ]),
       });
 
-      const analyzed = parseEvidence(
+      const analyzed = sessionEvidence(
+        session,
         (
           await mcp.callTool({
             name: "analyze_function",
@@ -206,7 +209,7 @@ describe("Ghidra MCP and shared CLI composition", () => {
       });
       expect(batch.isError).not.toBe(true);
       expect(batch.structuredContent).toMatchObject({
-        normalized_result: {
+        result: {
           succeeded: 1,
           failed: 0,
           items: [{ status: "ok" }],
@@ -269,7 +272,24 @@ describe("Ghidra MCP and shared CLI composition", () => {
   });
 });
 
+const sessionEvidence = (session: BinarySession, value: unknown) => {
+  if (
+    typeof value !== "object" ||
+    value === null ||
+    !("evidence_id" in value) ||
+    typeof value.evidence_id !== "string"
+  )
+    throw new TypeError(
+      `Missing compact Evidence ID: ${JSON.stringify(value)}`,
+    );
+  const evidence = session.evidenceById(value.evidence_id);
+  if (evidence === undefined) throw new TypeError("Missing session Evidence");
+  return evidence;
+};
+
 const installationHost = (): GhidraInstallationHost => ({
+  platform: "linux",
+  architecture: "x64",
   readText: () => "application.version=12.1.2\n",
   executable: () => true,
   probeJava: () => ({

tests/ghidraProvider.test.ts

@@ -16,6 +16,8 @@ import { silentLogger } from "../src/logger.js";
 
 const INSTALL = "/opt/ghidra_12.1.2_PUBLIC";
 const installationHost = (): GhidraInstallationHost => ({
+  platform: "linux",
+  architecture: "x64",
   readText: () => "application.version=12.1.2\n",
   executable: () => true,
   probeJava: () => ({

tests/installScript.test.ts

@@ -24,7 +24,7 @@ afterEach(async () => {
   );
 });
 
-describe("curl installer scenarios", () => {
+describe("curl installer scenarios", { timeout: 20_000 }, () => {
   it("installs only a pinned REA CLI with closed stdin", async () => {
     const fixture = await createFixture();
     const result = await runInstaller(fixture, ["--version", "0.3.0"]);

tests/nativeDmgArtifactReader.test.ts

@@ -44,7 +44,7 @@ describe("native DMG artifact reader", () => {
     const provenance = reader.provenance();
     if (provenance[0] !== undefined)
       Reflect.set(provenance[0], "tool", "forged");
-    expect(reader.provenance()[0]?.tool).toBe("hdiutil");
+    expect(reader.provenance()[0]?.tool).toBe("/usr/bin/hdiutil");
     await reader.close();
     expect(calls).toContainEqual(["verify", "/tmp/image.dmg"]);
     expect(calls).toContainEqual(["detach", "/dev/disk-fixture"]);

tests/nativeProvider.test.ts

@@ -30,7 +30,7 @@ describe("native macOS provider", () => {
       return Promise.resolve(
         resolutions === 1
           ? err(new NativeCommandFailure(tool, "unavailable"))
-          : ok({ path: "/bin/true", sha256: "a".repeat(64) }),
+          : ok({ path: "/usr/bin/true", sha256: "a".repeat(64) }),
       );
     });
     const options = { timeoutMs: 1_000, maxOutputBytes: 1_024 };

tests/permissionMcp.test.ts

@@ -1,4 +1,6 @@
 import { Client, InMemoryTransport } from "@modelcontextprotocol/client";
+import { realpath } from "node:fs/promises";
+import { join } from "node:path";
 import { describe, expect, it } from "vitest";
 
 import type { AnalysisOperationPort } from "../src/application/AnalysisProvider.js";
@@ -8,6 +10,7 @@ import { createServer } from "../src/server/createServer.js";
 
 describe("MCP permission preflight", () => {
   it("denies extraction before dispatch and returns exact typed remediation", async () => {
+    const outputRoot = join(await realpath("/tmp"), "rea-permission-denied");
     let dispatches = 0;
     const analysis: AnalysisOperationPort = {
       execute: () => {
@@ -28,7 +31,7 @@ describe("MCP permission preflight", () => {
         name: "extract_artifact",
         arguments: {
           approved: true,
-          output_root: "/tmp/rea-permission-denied",
+          output_root: outputRoot,
           occurrence_ids: [`occ_${"0".repeat(64)}`],
         },
       });
@@ -41,7 +44,7 @@ describe("MCP permission preflight", () => {
             code: "permission_required",
             details: {
               capability: "artifact_extract",
-              missing: { roots: ["/tmp/rea-permission-denied"] },
+              missing: { roots: [outputRoot] },
             },
             remediation: {
               restart_required: false,

tests/processCapture.test.ts

@@ -249,6 +249,15 @@ describe("process capture domain", () => {
         after: initialized,
       }),
     ).toBe(true);
+    expect(
+      isInitializedPtyRoot({
+        rootPid: 100,
+        expectedRunId: "run-token",
+        before: { ...initialized, session_id: null },
+        observedRunId: "run-token",
+        after: { ...initialized, session_id: null },
+      }),
+    ).toBe(true);
   });
 
   it("keeps interaction and shim residual uncertainty in separate scopes", () => {

vitest.config.ts

@@ -1,3 +1,4 @@
+import { realpathSync } from "node:fs";
 import { availableParallelism, tmpdir } from "node:os";
 import { join } from "node:path";
 
@@ -5,6 +6,7 @@ import { defineConfig } from "vitest/config";
 
 const TEST_FILES = ["tests/**/*.test.ts"];
 const PROCESS_CAPTURE_TEST = "tests/processCapture.test.ts";
+const CANONICAL_TEMPORARY_DIRECTORY = realpathSync(tmpdir());
 const SERIAL_INTEGRATION_TESTS = [
   "tests/browserCli.test.ts",
   "tests/cliOutput.test.ts",
@@ -37,6 +39,7 @@ const dualCoreProjects =
 export default defineConfig({
   test: {
     include: TEST_FILES,
+    env: { TMPDIR: CANONICAL_TEMPORARY_DIRECTORY },
     ...dualCoreProjects,
     retry: 2,
     reporters: ["default", "verbose"],