Add ChatPromptTemplateTest

tokuhirom · Jun 20, 2023 · e24fdf7 · e24fdf7
1 parent cf2dd71
commit e24fdf7
Showing 1 changed file with 37 additions and 0 deletions.
diff --git a/langchain-core/src/test/java/com/hw/langchain/prompts/chat/ChatPromptTemplateTest.java b/langchain-core/src/test/java/com/hw/langchain/prompts/chat/ChatPromptTemplateTest.java
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+package com.hw.langchain.prompts.chat;
+
+import com.hw.langchain.schema.BaseMessage;
+import com.hw.langchain.schema.HumanMessage;
+import com.hw.langchain.schema.SystemMessage;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+
+/**
+ * @author HamaWhite
+ */
+class ChatPromptTemplateTest {
+
+    @Test
+    void testFormatMessages() {
+        var template = "You are a helpful assistant that translates {input_language} to {output_language}.";
+        var systemMessagePrompt = SystemMessagePromptTemplate.fromTemplate(template);
+
+        var humanTemplate = "{text}";
+        var humanMessagePrompt = HumanMessagePromptTemplate.fromTemplate(humanTemplate);
+
+        var chatPrompt = ChatPromptTemplate.fromMessages(List.of(systemMessagePrompt, humanMessagePrompt));
+        List<BaseMessage> actual = chatPrompt.formatMessages(Map.of("input_language", "English",
+                "output_language", "French",
+                "text", "I love programming."));
+
+        List<BaseMessage> expected = List.of(
+                new SystemMessage("You are a helpful assistant that translates English to French."),
+                new HumanMessage("I love programming."));
+        assertEquals(expected, actual);
+    }
+}