Custom add and create flow polish

tests/unit/usesWizardFieldBlocksModalBody.test.ts

@@ -0,0 +1,116 @@
+import { describe, expect, it } from "vitest";
+import { usesWizardFieldBlocksModalBody } from "../../lib/create/usesWizardFieldBlocksModalBody";
+import type { CustomMethodCardFieldBlock } from "../../lib/create/customMethodCardFieldBlocks";
+
+const id = "550e8400-e29b-41d4-a716-446655440000";
+const meta = { [id]: { label: "L", supportText: "S" } };
+const blocks: CustomMethodCardFieldBlock[] = [
+  { kind: "text", id: "b1", blockTitle: "T", placeholderText: "p" },
+];
+
+describe("usesWizardFieldBlocksModalBody", () => {
+  it("is false without meta row", () => {
+    expect(
+      usesWizardFieldBlocksModalBody({
+        methodId: "signal",
+        meta: {},
+        fieldBlocksById: {},
+        modalEditUnlocked: false,
+        draftFieldBlocks: null,
+      }),
+    ).toBe(false);
+  });
+
+  it("is true when persisted field blocks exist (wizard card)", () => {
+    expect(
+      usesWizardFieldBlocksModalBody({
+        methodId: id,
+        meta,
+        fieldBlocksById: { [id]: blocks },
+        modalEditUnlocked: false,
+        draftFieldBlocks: null,
+      }),
+    ).toBe(true);
+  });
+
+  it("is true for proportion-only persisted blocks (read-only modal)", () => {
+    const proportionBlocks: CustomMethodCardFieldBlock[] = [
+      {
+        kind: "proportion",
+        id: "p1",
+        blockTitle: "Share of async",
+        defaultPercent: 40,
+      },
+    ];
+    expect(
+      usesWizardFieldBlocksModalBody({
+        methodId: id,
+        meta,
+        fieldBlocksById: { [id]: proportionBlocks },
+        modalEditUnlocked: false,
+        draftFieldBlocks: null,
+      }),
+    ).toBe(true);
+  });
+
+  it("is true when persisted blocks exist even if customMethodCardMetaById row is missing", () => {
+    expect(
+      usesWizardFieldBlocksModalBody({
+        methodId: id,
+        meta: {},
+        fieldBlocksById: { [id]: blocks },
+        modalEditUnlocked: false,
+        draftFieldBlocks: null,
+      }),
+    ).toBe(true);
+  });
+
+  it("is false when meta exists but persisted blocks empty and not editing blocks (preset duplicate stub)", () => {
+    expect(
+      usesWizardFieldBlocksModalBody({
+        methodId: id,
+        meta,
+        fieldBlocksById: { [id]: [] },
+        modalEditUnlocked: false,
+        draftFieldBlocks: null,
+      }),
+    ).toBe(false);
+  });
+
+  it("is true in read-only modal when custom, blocks empty, and facet matches preset stubs", () => {
+    expect(
+      usesWizardFieldBlocksModalBody({
+        methodId: id,
+        meta,
+        fieldBlocksById: { [id]: [] },
+        modalEditUnlocked: false,
+        draftFieldBlocks: null,
+        customFacetDetailsMatchPreset: true,
+      }),
+    ).toBe(true);
+  });
+
+  it("is false when customizing with empty wizard draft — structured fields stay active", () => {
+    expect(
+      usesWizardFieldBlocksModalBody({
+        methodId: id,
+        meta,
+        fieldBlocksById: {},
+        modalEditUnlocked: true,
+        draftFieldBlocks: [],
+      }),
+    ).toBe(false);
+  });
+
+  it("is true when customizing with non-empty block draft", () => {
+    expect(
+      usesWizardFieldBlocksModalBody({
+        methodId: id,
+        meta,
+        fieldBlocksById: {},
+        modalEditUnlocked: true,
+        draftFieldBlocks: blocks,
+      }),
+    ).toBe(true);
+  });
+});