diff --git a/web/src/test/auto/headless/engine/predictive-text/helpers/buildAlphabeticClusterFixture.tests.ts b/web/src/test/auto/headless/engine/predictive-text/helpers/buildAlphabeticClusterFixture.tests.ts
index 9a595df441..b680159c04 100644
--- a/web/src/test/auto/headless/engine/predictive-text/helpers/buildAlphabeticClusterFixture.tests.ts
+++ b/web/src/test/auto/headless/engine/predictive-text/helpers/buildAlphabeticClusterFixture.tests.ts
@@ -1,3 +1,12 @@
+/*
+ * Keyman is copyright (C) SIL Global. MIT License.
+ *
+ * Created by jahorton on 2026-03-09
+ *
+ * This file tests the construction of the helper test-fixture function in
+ * buildAlphabeticClusteredFixture.ts.
+ */
+
 import { assert } from "chai";
 
 import { SearchQuotientNode } from "@keymanapp/lm-worker/test-index";
@@ -15,7 +24,7 @@ describe('buildAlphabeticClusteredFixture() fixture', () => {
     const allDists = Object.values(distributions).map(set => Object.values(set)).flat();
     const finalClusterPaths = constituentPaths(clusters.cluster_k5c6) as SearchQuotientNode[][];
 
-    allPaths.forEach((spur) => assert.isTrue(finalClusterPaths.find(seq => seq.indexOf(spur) > -1)));
-    allDists.forEach((dist) => allPaths.find(path => quotientPathHasInputs(path, [dist])));
+    allPaths.forEach((spur) => assert.isOk(finalClusterPaths.find(seq => seq.indexOf(spur) > -1)));
+    allDists.forEach((dist) => assert.isOk(allPaths.find(path => quotientPathHasInputs(path, [dist]))));
   });
 });
\ No newline at end of file
diff --git a/web/src/test/auto/headless/engine/predictive-text/helpers/buildAlphabeticClusteredFixture.ts b/web/src/test/auto/headless/engine/predictive-text/helpers/buildAlphabeticClusteredFixture.ts
index a6493368d7..5da1bb59dd 100644
--- a/web/src/test/auto/headless/engine/predictive-text/helpers/buildAlphabeticClusteredFixture.ts
+++ b/web/src/test/auto/headless/engine/predictive-text/helpers/buildAlphabeticClusteredFixture.ts
@@ -69,16 +69,16 @@ export const buildAlphabeticClusterFixtures = () => {
   ]; // 0.60 total
 
   const distrib_v2_i1d1: Distribution<Transform> = [
-    { sample: { insert: 'á', deleteLeft: 1, deleteRight: 0, id: 13 }, p: 0.05 },
     { sample: { insert: 'é', deleteLeft: 1, deleteRight: 0, id: 13 }, p: 0.06 },
+    { sample: { insert: 'á', deleteLeft: 1, deleteRight: 0, id: 13 }, p: 0.05 },
     { sample: { insert: 'í', deleteLeft: 1, deleteRight: 0, id: 13 }, p: 0.04 },
     { sample: { insert: 'ó', deleteLeft: 1, deleteRight: 0, id: 13 }, p: 0.03 },
     { sample: { insert: 'ú', deleteLeft: 1, deleteRight: 0, id: 13 }, p: 0.02 },
   ]; // 0.2 total
 
   const distrib_v2_i2d1: Distribution<Transform> = [
-    { sample: { insert: 'áá', deleteLeft: 1, deleteRight: 0, id: 13 }, p: 0.05 },
     { sample: { insert: 'éé', deleteLeft: 1, deleteRight: 0, id: 13 }, p: 0.06 },
+    { sample: { insert: 'áá', deleteLeft: 1, deleteRight: 0, id: 13 }, p: 0.05 },
     { sample: { insert: 'íí', deleteLeft: 1, deleteRight: 0, id: 13 }, p: 0.04 },
     { sample: { insert: 'óó', deleteLeft: 1, deleteRight: 0, id: 13 }, p: 0.03 },
     { sample: { insert: 'úú', deleteLeft: 1, deleteRight: 0, id: 13 }, p: 0.02 },
diff --git a/web/src/test/auto/headless/engine/predictive-text/helpers/buildCantLinearFixture.tests.ts b/web/src/test/auto/headless/engine/predictive-text/helpers/buildCantLinearFixture.tests.ts
index 41acda3825..de3620a202 100644
--- a/web/src/test/auto/headless/engine/predictive-text/helpers/buildCantLinearFixture.tests.ts
+++ b/web/src/test/auto/headless/engine/predictive-text/helpers/buildCantLinearFixture.tests.ts
@@ -1,3 +1,13 @@
+/*
+ * Keyman is copyright (C) SIL Global. MIT License.
+ *
+ * Created by jahorton on 2026-03-09
+ *
+ * This file defines unit tests for validating a unit-text fixture for behaviors
+ * related to a simple linear sequence of SearchQuotientSpurs, with no
+ * convergence or divergence occurring within the fixture.
+ */
+
 import { assert } from "chai";
 
 import { constituentPaths } from "./constituentPaths.js";
diff --git a/web/src/test/auto/headless/engine/predictive-text/helpers/buildCantLinearFixture.ts b/web/src/test/auto/headless/engine/predictive-text/helpers/buildCantLinearFixture.ts
index c7c9d68bcc..9226ff9582 100644
--- a/web/src/test/auto/headless/engine/predictive-text/helpers/buildCantLinearFixture.ts
+++ b/web/src/test/auto/headless/engine/predictive-text/helpers/buildCantLinearFixture.ts
@@ -1,3 +1,13 @@
+/*
+ * Keyman is copyright (C) SIL Global. MIT License.
+ *
+ * Created by jahorton on 2026-03-09
+ *
+ * This file defines a unit-text fixture for testing behaviors related to a
+ * simple linear sequence of SearchQuotientSpurs, with no convergence or
+ * divergence occurring within the fixture.
+ */
+
 import { LegacyQuotientRoot, LegacyQuotientSpur, models } from "@keymanapp/lm-worker/test-index";
 import { jsonFixture } from "@keymanapp/common-test-resources/model-helpers.mjs";
 
diff --git a/web/src/test/auto/headless/engine/predictive-text/helpers/quotientPathHasInputs.tests.ts b/web/src/test/auto/headless/engine/predictive-text/helpers/quotientPathHasInputs.tests.ts
index 952699ef16..b0f4ee34d2 100644
--- a/web/src/test/auto/headless/engine/predictive-text/helpers/quotientPathHasInputs.tests.ts
+++ b/web/src/test/auto/headless/engine/predictive-text/helpers/quotientPathHasInputs.tests.ts
@@ -10,11 +10,11 @@
 import { assert } from 'chai';
 
 import { models, SearchQuotientRoot } from '@keymanapp/lm-worker/test-index';
+import { jsonFixture } from "@keymanapp/common-test-resources/model-helpers.mjs";
 
 import { quotientPathHasInputs } from "./quotientPathHasInputs.js";
 import { buildCantLinearFixture } from './buildCantLinearFixture.js';
 import { buildAlphabeticClusterFixtures } from './buildAlphabeticClusteredFixture.js';
-import { jsonFixture } from '../templates/helpers.js';
 
 import TrieModel = models.TrieModel;