test: add additional test case for key appearing later in key path

For #244

Author: mrodrig

test/config/testCsvFilesList.ts

@@ -50,6 +50,7 @@ const csvFileConfig = [
     {key: 'falsyValues', file: '../data/csv/falsyValues.csv'},
     {key: 'nestedNotUnwoundObjects', file: '../data/csv/nestedNotUnwoundObjects.csv'},
     {key: 'newlineWithWrapDelimiters', file: '../data/csv/newlineWithWrapDelimiters.csv'},
+    {key: 'excludeKeyPattern', file: '../data/csv/excludeKeyPattern.csv'},
 ];
 
 function readCsvFile(filePath: string) {

test/config/testJsonFilesList.ts

@@ -43,4 +43,5 @@ export default {
     quotedFieldWithNewline: require('../data/json/quotedFieldWithNewline.json'),
     falsyValues: require('../data/json/falsyValues.json'),
     newlineWithWrapDelimiters: require('../data/json/newlineWithWrapDelimiters'),
+    excludeKeyPattern: require('../data/json/excludeKeyPattern'),
 };

test/data/csv/excludeKeyPattern.csv

@@ -0,0 +1,3 @@
+id,name.arr
+1,this should appear
+2,this should also appear

test/data/json/excludeKeyPattern.json

@@ -0,0 +1,24 @@
+[
+    {
+        "id": 1,
+        "arr": [
+            {
+                "name": "foo"
+            }
+        ],
+        "name": {
+            "arr": "this should appear"
+        }
+    },
+    {
+        "id": 2,
+        "arr": [
+            {
+                "name": "bar"
+            }
+        ],
+        "name": {
+            "arr": "this should also appear"
+        }
+    }
+]

test/json2csv.ts

@@ -513,6 +513,16 @@ export function runTests() {
                 assert.equal(csv, updatedCsv);
             });
 
+            // Test case for #244
+            it('should exclude a matched key prefix, but not if it is not at the start of the key path', () => {
+                const csv = json2csv(jsonTestData.excludeKeyPattern, {
+                    expandArrayObjects: true,
+                    excludeKeys: ['arr']
+                });
+
+                assert.equal(csv, csvTestData.excludeKeyPattern);
+            });
+
             it('should use a custom value parser function when provided', () => {
                 const updatedCsv = csvTestData.trimmedFields.split('\n');
                 const textRow = 'Parsed Value,Parsed Value,Parsed Value,Parsed Value,Parsed Value';