Fix to clean up phraselists (#340)

Author: vishwacsena

packages/lu/src/parser/lufile/helpers.js

@@ -168,7 +168,7 @@ const helpers = {
                     (finalLUISJSON.composites || []).find(i => i.features);
         if (v5DefFound) {
             finalLUISJSON.luis_schema_version = "6.0.0";
-            if (finalLUISJSON.model_features && finalLUISJSON.model_features.length !== 0) {
+            if (finalLUISJSON.model_features) {
                 finalLUISJSON.phraselists = [];
                 finalLUISJSON.model_features.forEach(item => finalLUISJSON.phraselists.push(Object.assign({}, item)));
                 delete finalLUISJSON.model_features;

packages/lu/test/commands/luis/convert.test.ts

@@ -408,6 +408,13 @@ describe('luis:convert version 5 upgrade test', () => {
   .it('luis:convert successfully converts LUIS JSON model with nDepth entity and features to LU', async () => {
     expect(await compareLuFiles('./../../../results/root38.lu', './../../fixtures/verified/newEntityWithFeatures.lu')).to.be.true
   })
+
+  test
+  .stdout()
+  .command(['luis:convert', '--in', `${path.join(__dirname, './../../fixtures/testcases/v6WithoutPhraseLists.lu')}`, '--out', './results/root38.json'])
+  .it('luis:convert successfully converts LUIS JSON model with no phrase lists (output must have phraselists if any v6 concepts are present in the .lu file)', async () => {
+    expect(await compareLuFiles('./../../../results/root38.json', './../../fixtures/verified/v6WithoutPhraseLists.json')).to.be.true
+  })
 })
 
 describe('luis:convert negative tests', () => {

packages/lu/test/fixtures/testcases/v6WithoutPhraseLists.lu

@@ -0,0 +1,18 @@
+> !# @app.name = test app
+> !# @app.desc = test
+> !# @app.versionId = 0.1
+> !# @app.culture = en-us
+
+# test
+- one
+- two
+
+@ ml address = 
+    - @ number doorNumber
+    - @ ml streetName
+    - @ geographyV2 city
+    - @ zipRegex zipcode
+
+@ prebuilt number
+@ prebuilt geographyV2
+@ regex zipRegex = /[0-9]{5}/

packages/lu/test/fixtures/verified/v6WithoutPhraseLists.json

@@ -0,0 +1,75 @@
+{
+  "intents": [
+    {
+      "name": "test"
+    }
+  ],
+  "entities": [
+    {
+      "name": "address",
+      "roles": [],
+      "children": [
+        {
+          "name": "doorNumber",
+          "instanceOf": "number",
+          "children": []
+        },
+        {
+          "name": "streetName",
+          "instanceOf": null,
+          "children": []
+        },
+        {
+          "name": "city",
+          "instanceOf": "geographyV2",
+          "children": []
+        },
+        {
+          "name": "zipcode",
+          "instanceOf": "zipRegex",
+          "children": []
+        }
+      ]
+    }
+  ],
+  "composites": [],
+  "closedLists": [],
+  "regex_entities": [
+    {
+      "name": "zipRegex",
+      "regexPattern": "[0-9]{5}",
+      "roles": []
+    }
+  ],
+  "regex_features": [],
+  "utterances": [
+    {
+      "text": "one",
+      "intent": "test",
+      "entities": []
+    },
+    {
+      "text": "two",
+      "intent": "test",
+      "entities": []
+    }
+  ],
+  "patterns": [],
+  "patternAnyEntities": [],
+  "prebuiltEntities": [
+    {
+      "name": "number",
+      "roles": []
+    },
+    {
+      "name": "geographyV2",
+      "roles": []
+    }
+  ],
+  "name": "test app",
+  "desc": "test",
+  "versionId": "0.1",
+  "culture": "en-us",
+  "luis_schema_version": "6.0.0",
+  "phraselists": []
+}