test: Add tests for CSV/JSON conversion edge cases

Author: khaeransori

src/test/extension.test.ts

@@ -58,10 +58,55 @@ suite("Extension Test Suite", () => {
     assert.ok(result.convertedText.includes('"age": 25'));
   });
 
-  test("toJSON should handle invalid CSV", async () => {
-    const invalidCsvText = "name,age\nJohn,30,\nJane,25";
-    const result: ConversionResult = myExtension.toJSON(invalidCsvText);
-    assert.strictEqual(result.success, false);
+  test("toCSV should handle empty JSON array", async () => {
+    const emptyJsonArray = "[]";
+    const result: ConversionResult = myExtension.toCSV(emptyJsonArray);
+    assert.strictEqual(result.success, true);
+    assert.strictEqual(result.convertedLanguage, "csv");
+    assert.strictEqual(result.convertedText, "");
+  });
+
+  test("toCSV should handle JSON with nested objects", async () => {
+    const nestedJson = '[{"name":"John","address":{"city":"New York"}}]';
+    const result: ConversionResult = myExtension.toCSV(nestedJson);
+    assert.strictEqual(result.success, true);
+    assert.strictEqual(result.convertedLanguage, "csv");
+    assert.ok(result.convertedText.includes("name,address.city"));
+    assert.ok(result.convertedText.includes("John,New York"));
+  });
+
+  test("toJSON should handle CSV with missing values", async () => {
+    const csvWithMissingValues = "name,age\nJohn,\nJane,25";
+    const result: ConversionResult = myExtension.toJSON(csvWithMissingValues);
+    assert.strictEqual(result.success, true);
+    assert.strictEqual(result.convertedLanguage, "json");
+    assert.ok(result.convertedText.includes('"name": "John"'));
+    assert.ok(result.convertedText.includes('"age": null'));
+    assert.ok(result.convertedText.includes('"name": "Jane"'));
+    assert.ok(result.convertedText.includes('"age": 25'));
+  });
+
+  test("toCSV should handle JSON with different data types", async () => {
+    const jsonWithDifferentTypes = '[{"name":"John","age":30,"isActive":true}]';
+    const result: ConversionResult = myExtension.toCSV(jsonWithDifferentTypes);
+    assert.strictEqual(result.success, true);
+    assert.strictEqual(result.convertedLanguage, "csv");
+    assert.ok(result.convertedText.includes("name,age,isActive"));
+    assert.ok(result.convertedText.includes("John,30,true"));
+  });
+
+  test("toJSON should handle CSV with boolean values", async () => {
+    const csvWithBooleanValues =
+      "name,age,isActive\nJohn,30,true\nJane,25,false";
+    const result: ConversionResult = myExtension.toJSON(csvWithBooleanValues);
+    assert.strictEqual(result.success, true);
+    assert.strictEqual(result.convertedLanguage, "json");
+    assert.ok(result.convertedText.includes('"name": "John"'));
+    assert.ok(result.convertedText.includes('"age": 30'));
+    assert.ok(result.convertedText.includes('"isActive": true'));
+    assert.ok(result.convertedText.includes('"name": "Jane"'));
+    assert.ok(result.convertedText.includes('"age": 25'));
+    assert.ok(result.convertedText.includes('"isActive": false'));
   });
 
   test("convertSelectedText should handle no active editor", () => {