feat: vendor permission system source

pi-permission-system/test/helpers/presentation-fixtures.ts

@@ -0,0 +1,51 @@
+import type { ToolInputFormatterLookup } from "#src/tool-input-formatter-registry";
+import {
+  TOOL_INPUT_PREVIEW_MAX_LENGTH,
+  TOOL_TEXT_SUMMARY_MAX_LENGTH,
+} from "#src/tool-input-preview";
+import {
+  ToolPreviewFormatter,
+  type ToolPreviewFormatterOptions,
+} from "#src/tool-preview-formatter";
+import type { PermissionCheckResult } from "#src/types";
+
+/**
+ * Build a `PermissionCheckResult` for a presentation unit test.
+ *
+ * Defaults to the package's least-privilege `ask`. The presentation modules
+ * (the payload builders, `permission-prompts`, `tool-preview-formatter`) never
+ * read `state`, so a file whose subject is denials or allows wraps this with
+ * its own default rather than the caller repeating the whole literal.
+ */
+export function makePermissionCheckResult(
+  toolName: string,
+  overrides: Partial<PermissionCheckResult> = {},
+): PermissionCheckResult {
+  return {
+    toolName,
+    state: "ask",
+    source: "tool",
+    origin: "builtin",
+    ...overrides,
+  };
+}
+
+/**
+ * Build a `ToolPreviewFormatter` at the built-in preview limits.
+ *
+ * Pass `options` to exercise a configured limit, and `customFormatters` to
+ * exercise the registry seam ahead of the built-in switch.
+ */
+export function makeToolPreviewFormatter(
+  options: Partial<ToolPreviewFormatterOptions> = {},
+  customFormatters?: ToolInputFormatterLookup,
+): ToolPreviewFormatter {
+  return new ToolPreviewFormatter(
+    {
+      toolInputPreviewMaxLength: TOOL_INPUT_PREVIEW_MAX_LENGTH,
+      toolTextSummaryMaxLength: TOOL_TEXT_SUMMARY_MAX_LENGTH,
+      ...options,
+    },
+    customFormatters,
+  );
+}