Add tests for sentiment prediction function

Author: Pragya-19

tests/test_sentiment_prediction.py

@@ -0,0 +1,16 @@
+from nlp_model.sentiment_model import predict_sentiment
+
+
+def test_positive_sentiment():
+    result = predict_sentiment("I am very happy today")
+    assert result == "positive"
+
+
+def test_negative_sentiment():
+    result = predict_sentiment("This is a terrible product")
+    assert result == "negative"
+
+
+def test_neutral_sentiment():
+    result = predict_sentiment("I am going to the market")
+    assert result == "neutral"