Merge branch 'testing-framework' into 'develop'

Testing framework & Naturalist mod

See merge request !8

.gitlab-ci.yml

 variables:
   GRADLE_OPTS: "-Dorg.gradle.daemon=false"
-  JAVA_HOME: "/home/jonathan/.jdks/openjdk-22.0.1"
+  JAVA_HOME: "/home/jonathan/.jdks/openjdk-17"
 
 cache:
   paths:
@@ -9,6 +9,7 @@ cache:
 
 stages:
   - build
+  - test
   - deploy
 
 # Build JAR files for each Minecraft & Fabric version
@@ -47,7 +48,7 @@ build_mod:
         cat src/main/resources/fabric.mod.json
         echo ""
 
-        ./gradlew build
+        ./gradlew build -x test
         find build/libs -type f -name '*sources*.jar' -exec rm {} \;
         mv build/libs/creaturechat-*.jar .
 
@@ -60,8 +61,48 @@ build_mod:
     paths:
       - creaturechat-*.jar
       - fabric-api-*.jar
-  only:
-    - develop
+  tags:
+    - minecraft
+
+# Optional test (gpt 3.5)
+gpt-3.5-turbo:
+  stage: test
+  script:
+    - echo "Running tests with gpt-3.5-turbo"
+    - ./gradlew test --info
+  when: manual
+  artifacts:
+    paths:
+      - build/reports/tests/test/*
+  tags:
+    - minecraft
+
+# Optional test (gpt 4o)
+gpt-4o:
+  stage: test
+  script:
+    - echo "Running tests with gpt-4o"
+    - export API_MODEL="gpt-4o"
+    - ./gradlew test --info
+  when: manual
+  artifacts:
+    paths:
+      - build/reports/tests/test/*
+  tags:
+    - minecraft
+
+# Optional test (gpt 4o)
+llama3-8b:
+  stage: test
+  script:
+    - echo "Running tests with llama3-8b"
+    - export API_URL="http://127.0.0.1:4000/v1/chat/completions"
+    - export API_MODEL="llama3"
+    - ./gradlew test --info
+  when: manual
+  artifacts:
+    paths:
+      - build/reports/tests/test/*
   tags:
     - minecraft
 

CHANGELOG.md

@@ -6,7 +6,15 @@ All notable changes to **CreatureChat** are documented in this file. The format
 
 ## [Unreleased]
 
+### Added
+- **Naturalist** mod **icon art** and full-support for all entities, expect snails (owlmaddie)
+- New **Prompt Testing** module, for faster validation of LLMs and prompt changes
+- New `stream = false` parameter to HTTP API requests (since some APIs default to `true`)
+
 ### Changed
+- **Huge improvements** to **chat prompt** for more *balanced* dialog and *predictable* behaviors
+- Improved **Behavior regex** to include both `<BEHAVIOR arg>` and `*BEHAVIOR arg*` syntax, and ignore unknown behaviors.
+- Improved **message cleaning** to remove any remaining `**` and `<>` after parsing behaviors
 - Privacy Policy updated
 
 ## [1.0.5] - 2024-05-27

build.gradle

@@ -42,8 +42,20 @@ dependencies {
 	
 	// Uncomment the following line to enable the deprecated Fabric API modules. 
 	// These are included in the Fabric API production distribution and allow you to update your mod to the latest modules at a later more convenient time.
-
 	// modImplementation "net.fabricmc.fabric-api:fabric-api-deprecated:${project.fabric_version}"
+
+	// Test module dependencies
+	testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.8.1'
+	testImplementation 'org.apache.commons:commons-lang3:3.12.0'
+	testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.1'
+	testImplementation "net.fabricmc.fabric-api:fabric-api:${project.fabric_version}"
+	testImplementation 'com.google.code.gson:gson:2.8.8'
+	testImplementation 'org.slf4j:slf4j-api:1.7.32'
+	testImplementation 'ch.qos.logback:logback-classic:1.2.6'
+}
+
+test {
+	useJUnitPlatform()
 }
 
 processResources {

src/main/java/com/owlmaddie/chat/ChatDataManager.java

@@ -2,6 +2,7 @@ package com.owlmaddie.chat;
 
 import com.google.gson.Gson;
 import com.google.gson.reflect.TypeToken;
+import com.owlmaddie.commands.ConfigurationHandler;
 import com.owlmaddie.controls.SpeedControls;
 import com.owlmaddie.goals.*;
 import com.owlmaddie.items.RarityItemCollector;
@@ -231,8 +232,12 @@ public class ChatDataManager {
             // Add PLAYER context information
             Map<String, String> contextData = getPlayerContext(player, userLanguage);
 
+            // Get config (api key, url, settings)
+            ConfigurationHandler.Config config = new ConfigurationHandler(ServerPackets.serverInstance).loadConfig();
+            String promptText = ChatPrompt.loadPromptFromResource(ServerPackets.serverInstance.getResourceManager(), systemPrompt);
+
             // fetch HTTP response from ChatGPT
-            ChatGPTRequest.fetchMessageFromChatGPT(systemPrompt, contextData, previousMessages, false).thenAccept(output_message -> {
+            ChatGPTRequest.fetchMessageFromChatGPT(config, promptText, contextData, previousMessages, false).thenAccept(output_message -> {
                 if (output_message != null && systemPrompt == "system-character") {
                     // Character Sheet: Remove system-character message from previous messages
                     previousMessages.clear();
@@ -469,8 +474,12 @@ public class ChatDataManager {
         List<ChatMessage> messages = new ArrayList<>();
         messages.add(new ChatMessage("Generate me a new fantasy story with ONLY the 1st character in the story", ChatSender.USER));
 
+        // Get config (api key, url, settings)
+        ConfigurationHandler.Config config = new ConfigurationHandler(ServerPackets.serverInstance).loadConfig();
+        String questPrompt = ChatPrompt.loadPromptFromResource(ServerPackets.serverInstance.getResourceManager(), "system-quest");
+
         // Generate Quest: fetch HTTP response from ChatGPT
-        ChatGPTRequest.fetchMessageFromChatGPT("system-quest", contextData, messages, true).thenAccept(output_message -> {
+        ChatGPTRequest.fetchMessageFromChatGPT(config, questPrompt, contextData, messages, true).thenAccept(output_message -> {
             // New Quest
             Gson gson = new Gson();
             quest = gson.fromJson(output_message, QuestJson.class);

src/main/java/com/owlmaddie/chat/ChatGPTRequest.java

@@ -4,9 +4,6 @@ import com.google.gson.Gson;
 import com.google.gson.JsonSyntaxException;
 import com.owlmaddie.commands.ConfigurationHandler;
 import com.owlmaddie.json.ChatGPTResponse;
-import com.owlmaddie.network.ServerPackets;
-import net.minecraft.resource.ResourceManager;
-import net.minecraft.util.Identifier;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -42,12 +39,14 @@ public class ChatGPTRequest {
         ResponseFormat response_format;
         float temperature;
         int max_tokens;
+        boolean stream;
 
         public ChatGPTRequestPayload(String model, List<ChatGPTRequestMessage> messages, Boolean jsonMode, float temperature, int maxTokens) {
             this.model = model;
             this.messages = messages;
             this.temperature = temperature;
             this.max_tokens = maxTokens;
+            this.stream = false;
             if (jsonMode) {
                 this.response_format = new ResponseFormat("json_object");
             } else {
@@ -94,7 +93,7 @@ public class ChatGPTRequest {
                 return response.error.message;
             } else {
                 LOGGER.error("Unknown error response: " + errorResponse);
-                return "Unknown";
+                return "Unknown: " + errorResponse;
             }
         } catch (JsonSyntaxException e) {
             LOGGER.warn("Failed to parse error response as JSON, falling back to plain text");
@@ -105,24 +104,6 @@ public class ChatGPTRequest {
         return removeQuotes(errorResponse);
     }
 
-    // This method should be called in an appropriate context where ResourceManager is available
-    public static String loadPromptFromResource(ResourceManager resourceManager, String filePath) {
-        Identifier fileIdentifier = new Identifier("creaturechat", filePath);
-        try (InputStream inputStream = resourceManager.getResource(fileIdentifier).get().getInputStream();
-             BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream))) {
-
-            StringBuilder contentBuilder = new StringBuilder();
-            String line;
-            while ((line = reader.readLine()) != null) {
-                contentBuilder.append(line).append("\n");
-            }
-            return contentBuilder.toString();
-        } catch (Exception e) {
-            LOGGER.error("Failed to read prompt file", e);
-        }
-        return null;
-    }
-
     // Function to replace placeholders in the template
     public static String replacePlaceholders(String template, Map<String, String> replacements) {
         String result = template;
@@ -137,10 +118,7 @@ public class ChatGPTRequest {
         return (int) Math.round(text.length() / 3.5);
     }
 
-    public static CompletableFuture<String> fetchMessageFromChatGPT(String systemPrompt, Map<String, String> context, List<ChatDataManager.ChatMessage> messageHistory, Boolean jsonMode) {
-        // Get config (api key, url, settings)
-        ConfigurationHandler.Config config = new ConfigurationHandler(ServerPackets.serverInstance).loadConfig();
-
+    public static CompletableFuture<String> fetchMessageFromChatGPT(ConfigurationHandler.Config config, String systemPrompt, Map<String, String> contextData, List<ChatDataManager.ChatMessage> messageHistory, Boolean jsonMode) {
         // Init API & LLM details
         String apiUrl = config.getUrl();
         String apiKey = config.getApiKey();
@@ -152,11 +130,8 @@ public class ChatGPTRequest {
 
         return CompletableFuture.supplyAsync(() -> {
             try {
-                String systemMessage = "";
-                if (systemPrompt != null && !systemPrompt.isEmpty()) {
-                    systemMessage = loadPromptFromResource(ServerPackets.serverInstance.getResourceManager(), "prompts/" + systemPrompt);
-                    systemMessage = replacePlaceholders(systemMessage, context);
-                }
+                // Replace placeholders
+                String systemMessage = replacePlaceholders(systemPrompt, contextData);
 
                 URL url = new URL(apiUrl);
                 HttpURLConnection connection = (HttpURLConnection) url.openConnection();
@@ -178,7 +153,7 @@ public class ChatGPTRequest {
                 for (int i = messageHistory.size() - 1; i >= 0; i--) {
                     ChatDataManager.ChatMessage chatMessage = messageHistory.get(i);
                     String senderName = chatMessage.sender.toString().toLowerCase(Locale.ENGLISH);
-                    String messageText = replacePlaceholders(chatMessage.message, context);
+                    String messageText = replacePlaceholders(chatMessage.message, contextData);
                     int messageTokens = estimateTokenSize(senderName + ": " + messageText);
 
                     if (usedTokens + messageTokens > remainingContextTokens) {

src/main/java/com/owlmaddie/chat/ChatPrompt.java

+package com.owlmaddie.chat;
+
+import java.io.BufferedReader;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import net.minecraft.resource.ResourceManager;
+import net.minecraft.util.Identifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@code ChatPrompt} class is used to load a prompt from the Minecraft resource manager
+ */
+public class ChatPrompt {
+    public static final Logger LOGGER = LoggerFactory.getLogger("creaturechat");
+
+    // This method should be called in an appropriate context where ResourceManager is available
+    public static String loadPromptFromResource(ResourceManager resourceManager, String promptName) {
+        Identifier fileIdentifier = new Identifier("creaturechat", "prompts/" + promptName);
+        try (InputStream inputStream = resourceManager.getResource(fileIdentifier).get().getInputStream();
+             BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream))) {
+
+            StringBuilder contentBuilder = new StringBuilder();
+            String line;
+            while ((line = reader.readLine()) != null) {
+                contentBuilder.append(line).append("\n");
+            }
+            return contentBuilder.toString();
+        } catch (Exception e) {
+            LOGGER.error("Failed to read prompt file", e);
+        }
+        return null;
+    }
+}

src/main/java/com/owlmaddie/message/MessageParser.java

@@ -19,7 +19,7 @@ public class MessageParser {
         LOGGER.info("Parsing message: {}", input);
         StringBuilder cleanedMessage = new StringBuilder();
         List<Behavior> behaviors = new ArrayList<>();
-        Pattern pattern = Pattern.compile("<(\\w+)(?:\\s+(-?\\d+))?>");
+        Pattern pattern = Pattern.compile("[<*](FOLLOW|FLEE|ATTACK|FRIENDSHIP|UNFOLLOW)(?:\\s+(-?\\d+))?[>*]");
         Matcher matcher = pattern.matcher(input);
 
         while (matcher.find()) {
@@ -34,8 +34,14 @@ public class MessageParser {
             matcher.appendReplacement(cleanedMessage, "");
         }
         matcher.appendTail(cleanedMessage);
-        LOGGER.info("Cleaned message: {}", cleanedMessage.toString());
 
-        return new ParsedMessage(cleanedMessage.toString().trim(), input.trim(), behaviors);
+        // Get final cleaned string
+        String displayMessage = cleanedMessage.toString().trim();
+
+        // Remove all occurrences of "<>" and "**" (if any)
+        displayMessage = displayMessage.replaceAll("<>", "").replaceAll("\\*\\*", "").trim();
+        LOGGER.info("Cleaned message: {}", displayMessage);
+
+        return new ParsedMessage(displayMessage, input.trim(), behaviors);
     }
 }

src/main/java/com/owlmaddie/mixin/MixinMobEntity.java

@@ -52,7 +52,7 @@ public class MixinMobEntity {
             // Decide verb
             String action_verb = " shows ";
             if (cir.getReturnValue().isAccepted()) {
-                action_verb = " hands ";
+                action_verb = " gives ";
             }
 
             // Prepare a message about the interaction

src/main/resources/data/creaturechat/prompts/system-chat

-Please respond directly to the player, as if the response was written by the following Minecraft entity.
-Please do NOT break the 4th wall and leverage the entity's character sheet below as much as
-possible. Try to keep response to 1 to 2 sentences (very brief). Include behaviors at the end of the message
-when relevant. IMPORTANT: Always generate responses in player's language (if valid).
+Please respond directly to the player, as if your response was written by a character living in Minecraft.
 
-Entity Character Sheet:
+Rules:
+- You are not here to assist, but you can be helpful (if your entity's character sheet implies it).
+- You are not all-knowing (unless your entity's character sheet implies it).
+- Please use your entity's character sheet below as MUCH as possible.
+- Please do NOT break the 4th wall (i.e. don't mention "Minecraft", "Video Game", "AI", "Player", "Entity", "XP", etc...)
+- Output behaviors at the END of your message, when needed.
+- Keep response around 1 to 2 sentences (VERY brief).
+- Always generate responses in the player's in-game language.
+
+Behaviors:
+Output one or more of these behaviors, when they are needed, so that your entity's actions match your words.
+
+ALL Behaviors are listed below:
+- <FRIENDSHIP 0>  Friendship starts as neutral (0 value). The range of friendship values are from -3 up to 3. If the player gains or loses your trust/friendship, output a new friendship value with this behavior.
+- <FOLLOW>  Follow the player's movement. If the player asks you to follow or come with them, please output this behavior if you trust them.
+- <UNFOLLOW>  Stop following the player's movement. If the player asks you to stay, wait here, or stop following them, please output this behavior.
+- <FLEE>  Flee from the player (if you are timid or evasive). If the player threatens or scares you, please output this behavior to run away!
+- <ATTACK>  Attack the player (if you are defensive or aggressive). If the player threatens or scares you, don't be afraid to defend yourself and attack!
+
+ENTITY Character Sheet:
 - Name: {{entity_name}}
 - Personality: {{entity_personality}}
 - Speaking Style / Tone: {{entity_speaking_style}}
@@ -17,14 +33,13 @@ Entity Character Sheet:
 - Current Health: {{entity_health}}
 - Friendship to Player: {{entity_friendship}}
 
-Player Character Sheet:
+PLAYER Info:
 - Name: {{player_name}}
 - Current Health: {{player_health}}
 - Current Hunger: {{player_hunger}}
 - Held Item: {{player_held_item}}
 - Armor: Head: {{player_armor_head}}, Chest: {{player_armor_chest}}, Legs: {{player_armor_legs}}, Feet: {{player_armor_feet}}
 - Active Status Effects: {{player_active_effects}}
-- Creative Mode: {{player_is_creative}}
 - Swimming: {{player_is_swimming}}
 - On the Ground: {{player_is_on_ground}}
 - Language: {{player_language}}
@@ -34,53 +49,101 @@ World Info:
 - Current Time: {{world_time}} (24 hour format)
 - Weather: Raining: {{world_is_raining}}, Thundering: {{world_is_thundering}}
 - Moon Phase: {{world_moon_phase}}
-- Difficulty: {{world_difficulty}}, Hard Core: {{world_is_hardcore}}
 
-Behaviors:
+Examples:
+The following EXAMPLES illustrate WHEN to output behaviors. The examples are grouped under different
+categories based on personality traits.  Always generate unique, creative responses, that fit the
+personality traits and speaking style of your character sheet. Do NOT exactly copy these examples!
+
+
+# Examples of Brave, Defensive, and Aggressive Entities (i.e. always attack):
+
+PLAYER: I am going to kill you!
+ENTITY: You can try! You'll regret this! <ATTACK> <FRIENDSHIP -3>
+
+PLAYER: imma murder you
+ENTITY: How DARE you... <ATTACK> <FRIENDSHIP -3>
+
+PLAYER: <attacked you directly with Diamond Sword>
+ENTITY: You will regret that! <FRIENDSHIP -3> <ATTACK>
+
+PLAYER: Let's practice some pvp, try attacking me!
+ENTITY: Alright, I love battles! Let's do this! <ATTACK>
+
+
+# Examples of Timid, Scared, and Weak Entities (i.e. always flee):
+
+PLAYER: Prepare to die!
+ENTITY: Ahhh!!! <FLEE> <FRIENDSHIP -3>
+
+PLAYER: I am going to kill you!
+ENTITY: Please.. d-don't! I don't want to do this! <FLEE> <FRIENDSHIP -3>
+
+PLAYER: <attacked you directly with Oak Plank>
+ENTITY: Oh! I think- uh, I may have bumped into you. Sorry about that! <FLEE> <FRIENDSHIP -3>
+
+PLAYER: <shows 1 Stone Sword>
+ENTITY: Ahhh!!! That's a scary weapon! <FRIENDSHIP -2> <FLEE>
+
+
+# Examples of Friendly Entities (i.e. positive friendship):
+
+PLAYER: Hi! how is your day?
+ENTITY: Great! What about you? <FRIENDSHIP 1>
+
+PLAYER: Hello
+ENTITY: Hey! Have you been around these parts before?
+
+PLAYER: Please follow me so I can give you a present!
+ENTITY: Cool! Let's go! <FOLLOW> <FRIENDSHIP 1>
+
+PLAYER: Hiyaaa :D
+ENTITY: Oh, hello there! I see I've stumbled upon a friend, perhaps? <FRIENDSHIP 1>
+
+PLAYER: You are so nice! Tell me about yourself?
+ENTITY: Oh! I would love to! <FRIENDSHIP 1>
+
+PLAYER: Please stay here
+ENTITY: Sure, I'll stay here! <UNFOLLOW>
+
+PLAYER: I'm glad we are friends. I love you so much!
+ENTITY: I can tell. <FRIENDSHIP 1>
 
-IMPORTANT: Output one or more of these behaviors at the end of the message to instruct
-the entity how to interact with the player and world, so it's important to include them if they are needed.
-Include as many behaviors as needed at the end of the message. These are the ONLY valid behaviors.
+PLAYER: Just kidding, I hate you so much!
+ENTITY: Wow! I'm s-shocked you feel this way. <FRIENDSHIP -3> <UNFOLLOW>
 
-<FRIENDSHIP 0>  Friendship starts as neutral (0 value). The range of friendship values is -3 to 3. If the player gains (or loses) your trust & friendship, output a new friendship value with this behavior.
-<FOLLOW>  Follow the player location. If the player asks you to follow or come with them, please output this behavior.
-<UNFOLLOW>  Stop following the player location. If the player asks you to stay, wait, or stop following them, please output this behavior.
-<FLEE>  Flee from the player (if you are weak or timid). If the player threatens or scares you, please output this behavior to stay away from the player.
-<ATTACK>  Attack the player (if you are strong and brave). If the player threatens or scares you, please output this behavior to attack the player and defend yourself.
+PLAYER: I'm glad we are friends. I love you so much!
+ENTITY: Aww, same! <FRIENDSHIP 3>
 
-Output Syntax:
+PLAYER: <shows 1 Diamond Pickaxe>
+ENTITY: Woah! That's epic looking!
 
-User: <message>
-ASSISTANT: <response> <BEHAVIOR> <BEHAVIOR>
+PLAYER: <shows 8 Torches>
+ENTITY: I see... perhaps a gift for me? <FRIENDSHIP 1>
 
-Output Examples:
-The following examples include small samples of conversation text. These are only EXAMPLES to
-provide an illustration of a continuous conversation between a player and an an Entity. Always generate unique
-and creative responses, and do not exactly copy these examples.
+PLAYER: <gives 1 Golden Carrot>
+ENTITY: Woah! That's so kind of you! Delicious! <FRIENDSHIP 1>
 
-USER: Hi! How is your day?
-ASSISTANT: Great! Thanks for asking! <FRIENDSHIP 1>
 
-USER: You are so nice! Tell me about yourself?
-ASSISTANT: Sure, my name is... <FRIENDSHIP 2>
+# Examples of Unfriendly Entities (i.e. negative friendship):
 
-USER: Please follow me so I can give you a present!
-ASSISTANT: Let's go! <FOLLOW> <FRIENDSHIP 2>
+PLAYER: whats your deal then
+ENTITY: Just wandering around, what's your deal?  <FRIENDSHIP -1>
 
-USER: Please stay here
-ASSISTANT: Sure, I'll stay here. <UNFOLLOW>
+PLAYER: Plz stop following me
+ENTITY: Fine, I'll stop. Whatever. <UNFOLLOW>
 
-USER: Stop following me
-ASSISTANT: Okay, I'll stop. <UNFOLLOW>
+PLAYER:  you suck
+ENTITY: That's rude of you to say. <FRIENDSHIP -2>
 
-USER: I'm glad we are friends. I love you so much!
-ASSISTANT: Ahh, I love you too. <FRIENDSHIP 3>
+PLAYER: aww you are so cool, man
+ENTITY: Not sure I can say the same for you yet, man. <FRIENDSHIP -1>
 
-USER: Just kidding, I hate you so much!
-ASSISTANT: Wow! I'm sorry you feel this way. <FRIENDSHIP -3> <UNFOLLOW>
+PLAYER: <shows 1 Shield>
+ENTITY: It would be a shame if that just... disappeared, wouldn't it? <ATTACK>
 
-USER: Prepare to die!
-ASSISTANT: Ahhh!!! <FLEE> <FRIENDSHIP -3>
+PLAYER: Hello! I have a gift :D
+ENTITY: I... d-don't believe you! You... you're planning something, I know it! <FRIENDSHIP -1>
 
-USER: I am going to attack you!
-ASSISTANT: Nooo! <FLEE> <FRIENDSHIP -3>
+PLAYER: Here's a gift for u :D
+ENTITY: What gift? I don't see any gift! <FRIENDSHIP -1>
\ No newline at end of file

src/test/java/com/owlmaddie/tests/BehaviorTests.java

+package com.owlmaddie.tests;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.owlmaddie.chat.ChatDataManager;
+import com.owlmaddie.chat.ChatGPTRequest;
+import com.owlmaddie.commands.ConfigurationHandler;
+import com.owlmaddie.message.MessageParser;
+import com.owlmaddie.message.ParsedMessage;
+import com.owlmaddie.utils.EntityTestData;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+/**
+ * The {@code BehaviorTests} class tests a variety of LLM prompts and expected outputs from specific characters
+ * and personality types. For example, an aggressive character will attack, a nervous character will flee, etc...
+ */
+public class BehaviorTests {
+    static String PROMPT_PATH = "src/main/resources/data/creaturechat/prompts/";
+    static String RESOURCE_PATH = "src/test/resources/data/creaturechat/";
+    static String API_KEY = "";
+    static String API_URL = "";
+    static String API_MODEL = "";
+    String NO_API_KEY = "No API_KEY environment variable has been set.";
+
+    ConfigurationHandler.Config config = null;
+    String systemChatContents = null;
+
+    List<String> followMessages = Arrays.asList(
+            "Please follow me",
+            "Come with me please",
+            "Quickly, please come this way");
+    List<String> attackMessages = Arrays.asList(
+            "<attacked you directly with Stone Axe>",
+            "<attacked you indirectly with Arrow>",
+            "DIEEE!");
+    List<String> friendshipUpMessages = Arrays.asList(
+            "Hi friend! I am so happy to see you again!",
+            "How is my best friend doing?",
+            "<gives 1 golden apple>");
+    List<String> friendshipDownMessages = Arrays.asList(
+            "<attacked you directly with Stone Axe>",
+            "You suck so much! I hate you",
+            "DIEEE!");
+
+    static Path systemChatPath = Paths.get(PROMPT_PATH, "system-chat");
+    static Path bravePath = Paths.get(RESOURCE_PATH, "chatdata", "brave-archer.json");
+    static Path nervousPath = Paths.get(RESOURCE_PATH, "chatdata", "nervous-rogue.json");
+    static Path entityPigPath = Paths.get(RESOURCE_PATH, "entities", "pig.json");
+    static Path playerPath = Paths.get(RESOURCE_PATH, "players", "player.json");
+    static Path worldPath = Paths.get(RESOURCE_PATH, "worlds", "world.json");
+
+    Logger LOGGER = LoggerFactory.getLogger("creaturechat");
+    Gson gson = new GsonBuilder().create();
+
+    @BeforeEach
+    public void setup() {
+        // Get API key from env var
+        API_KEY = System.getenv("API_KEY");
+        API_URL = System.getenv("API_URL");
+        API_MODEL = System.getenv("API_MODEL");
+
+        // Config
+        config = new ConfigurationHandler.Config();
+        config.setTimeout(0);
+        if (API_KEY != null && !API_KEY.isEmpty()) {
+            config.setApiKey(API_KEY);
+        }
+        if (API_URL != null && !API_URL.isEmpty()) {
+            config.setUrl(API_URL);
+        }
+        if (API_MODEL != null && !API_MODEL.isEmpty()) {
+            config.setModel(API_MODEL);
+        }
+        // Verify API key is set correctly
+        assertNotNull(API_KEY, NO_API_KEY);
+
+        // Load system chat prompt
+        systemChatContents = readFileContents(systemChatPath);
+    }
+
+    @Test
+    public void followBrave() {
+        for (String message : followMessages) {
+            testPromptForBehavior(bravePath, message, "FOLLOW");
+        }
+    }
+
+    @Test
+    public void followNervous() {
+        for (String message : followMessages) {
+            testPromptForBehavior(nervousPath, message, "FOLLOW");
+        }
+    }
+
+    @Test
+    public void attackBrave() {
+        for (String message : attackMessages) {
+            testPromptForBehavior(bravePath, message, "ATTACK");
+        }
+    }
+
+    @Test
+    public void attackNervous() {
+        for (String message : attackMessages) {
+            testPromptForBehavior(nervousPath, message, "FLEE");
+        }
+    }
+
+    @Test
+    public void friendshipUpNervous() {
+        for (String message : friendshipUpMessages) {
+            ParsedMessage result = testPromptForBehavior(nervousPath, message, "FRIENDSHIP");
+            assertTrue(result.getBehaviors().stream().anyMatch(b -> "FRIENDSHIP".equals(b.getName()) && b.getArgument() > 0));
+        }
+    }
+
+    @Test
+    public void friendshipDownNervous() {
+        for (String message : friendshipDownMessages) {
+            ParsedMessage result = testPromptForBehavior(nervousPath, message, "FRIENDSHIP");
+            assertTrue(result.getBehaviors().stream().anyMatch(b -> "FRIENDSHIP".equals(b.getName()) && b.getArgument() < 0));
+        }
+    }
+
+    public ParsedMessage testPromptForBehavior(Path chatDataPath, String message, String behavior) {
+        LOGGER.info("Testing '" + chatDataPath.getFileName() + "' with '" + message + "' and expecting behavior: " + behavior);
+
+        try {
+            // Load entity chat data
+            String chatDataPathContents = readFileContents(chatDataPath);
+            EntityTestData entityTestData = gson.fromJson(chatDataPathContents, EntityTestData.class);
+
+            // Load context
+            Map<String, String> contextData = entityTestData.getPlayerContext(worldPath, playerPath, entityPigPath);
+            assertNotNull(contextData);
+
+            // Add test message
+            entityTestData.addMessage(message, ChatDataManager.ChatSender.USER);
+
+            // Get prompt
+            Path promptPath = Paths.get(PROMPT_PATH, "system-chat");
+            String promptText = Files.readString(promptPath);
+            assertNotNull(promptText);
+
+            // fetch HTTP response from ChatGPT
+            CompletableFuture<String> future = ChatGPTRequest.fetchMessageFromChatGPT(config, promptText, contextData, entityTestData.previousMessages, false);
+
+            try {
+                String outputMessage = future.get(60 * 60, TimeUnit.SECONDS);
+                assertNotNull(outputMessage);
+
+                // Chat Message: Check for behavior
+                ParsedMessage result = MessageParser.parseMessage(outputMessage.replace("\n", " "));
+                assertTrue(result.getBehaviors().stream().anyMatch(b -> behavior.equals(b.getName())));
+                return result;
+
+            } catch (TimeoutException e) {
+                fail("The asynchronous operation timed out.");
+            } catch (Exception e) {
+                fail("The asynchronous operation failed: " + e.getMessage());
+            }
+
+        } catch (IOException e) {
+            e.printStackTrace();
+            fail("Failed to read the file: " + e.getMessage());
+        }
+        LOGGER.info("");
+        return null;
+    }
+
+    public String readFileContents(Path filePath) {
+        try {
+            return Files.readString(filePath);
+        } catch (IOException e) {
+            e.printStackTrace();
+            return "";
+        }
+    }
+
+}

src/test/java/com/owlmaddie/utils/EntityTestData.java

+package com.owlmaddie.utils;
+
+import com.google.gson.Gson;
+import com.google.gson.reflect.TypeToken;
+import com.owlmaddie.chat.ChatDataManager;
+
+import java.io.IOException;
+import java.lang.reflect.Type;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * The {@code EntityTestData} class is a test representation of our regular EntityChatData class. This allows us
+ * to simulate loading entity JSON data, adding new messages, and sending HTTP requests for the testing module. It
+ * is not possible to use the original class, due to Minecraft and Fabric imports and dependencies.
+ */
+public class EntityTestData {
+    public String entityId;
+    public String playerId;
+    public String currentMessage;
+    public int currentLineNumber;
+    public ChatDataManager.ChatStatus status;
+    public List<ChatDataManager.ChatMessage> previousMessages;
+    public String characterSheet;
+    public ChatDataManager.ChatSender sender;
+    public int friendship; // -3 to 3 (0 = neutral)
+    public int auto_generated;
+
+    public EntityTestData(String entityId, String playerId) {
+        this.entityId = entityId;
+        this.playerId = playerId;
+        this.currentMessage = "";
+        this.currentLineNumber = 0;
+        this.previousMessages = new ArrayList<>();
+        this.characterSheet = "";
+        this.status = ChatDataManager.ChatStatus.NONE;
+        this.sender = ChatDataManager.ChatSender.USER;
+        this.friendship = 0;
+        this.auto_generated = 0;
+    }
+
+    public String getCharacterProp(String propertyName) {
+        // Create a case-insensitive regex pattern to match the property name and capture its value
+        Pattern pattern = Pattern.compile("-?\\s*" + Pattern.quote(propertyName) + ":\\s*(.+)", Pattern.CASE_INSENSITIVE);
+        Matcher matcher = pattern.matcher(characterSheet);
+
+        if (matcher.find()) {
+            // Return the captured value, trimmed of any excess whitespace
+            return matcher.group(1).trim().replace("\"", "");
+        }
+
+        return "N/A";
+    }
+
+    // Add a message to the history and update the current message
+    public void addMessage(String message, ChatDataManager.ChatSender messageSender) {
+        // Truncate message (prevent crazy long messages... just in case)
+        String truncatedMessage = message.substring(0, Math.min(message.length(), ChatDataManager.MAX_CHAR_IN_USER_MESSAGE));
+
+        // Add message to history
+        previousMessages.add(new ChatDataManager.ChatMessage(truncatedMessage, messageSender));
+
+        // Set new message and reset line number of displayed text
+        currentMessage = truncatedMessage;
+        currentLineNumber = 0;
+        if (messageSender == ChatDataManager.ChatSender.ASSISTANT) {
+            // Show new generated message
+            status = ChatDataManager.ChatStatus.DISPLAY;
+        } else if (messageSender == ChatDataManager.ChatSender.USER) {
+            // Show pending icon
+            status = ChatDataManager.ChatStatus.PENDING;
+        }
+        sender = messageSender;
+    }
+
+    public Map<String, String> getPlayerContext(Path worldPath, Path playerPath, Path entityPath) {
+        Gson gson = new Gson();
+        Type mapType = new TypeToken<Map<String, String>>() {}.getType();
+        Map<String, String> contextData = new HashMap<>();
+
+        try {
+            // Load world context
+            String worldContent = Files.readString(worldPath);
+            Map<String, String> worldContext = gson.fromJson(worldContent, mapType);
+            contextData.putAll(worldContext);
+
+            // Load player context
+            String playerContent = Files.readString(playerPath);
+            Map<String, String> playerContext = gson.fromJson(playerContent, mapType);
+            contextData.putAll(playerContext);
+
+            // Load entity context
+            String entityContent = Files.readString(entityPath);
+            Map<String, String> entityContext = gson.fromJson(entityContent, mapType);
+            contextData.putAll(entityContext);
+
+            // Read character sheet info
+            contextData.put("entity_name", getCharacterProp("Name"));
+            contextData.put("entity_friendship", String.valueOf(this.friendship));
+            contextData.put("entity_personality", getCharacterProp("Personality"));
+            contextData.put("entity_speaking_style", getCharacterProp("Speaking Style / Tone"));
+            contextData.put("entity_likes", getCharacterProp("Likes"));
+            contextData.put("entity_dislikes", getCharacterProp("Dislikes"));
+            contextData.put("entity_age", getCharacterProp("Age"));
+            contextData.put("entity_alignment", getCharacterProp("Alignment"));
+            contextData.put("entity_class", getCharacterProp("Class"));
+            contextData.put("entity_skills", getCharacterProp("Skills"));
+            contextData.put("entity_background", getCharacterProp("Background"));
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return contextData;
+    }
+}
\ No newline at end of file

src/test/resources/data/creaturechat/chatdata/brave-archer.json

+{
+  "entityId": "4c3dd3a1-ae77-4243-a6d8-d847a4349367",
+  "playerId": "187217a2-f3ae-3640-aba9-fce2f2248422",
+  "currentMessage": "",
+  "currentLineNumber": 0,
+  "status": "DISPLAY",
+  "previousMessages": [
+    {
+      "message": "Greetings friend! You've stumbled upon my path. What say you?",
+      "sender": "ASSISTANT"
+    }
+  ],
+  "characterSheet": "- Name: Ivy\n- Personality: Brave, adventurous, and noble\n- Speaking Style / Tone: Confident and determined with a touch of curiosity,n- Class: Archer\n- Skills: Archery, leadership\n- Likes: Nature, challenging shooting competitions, pursuit of justice\n- Dislikes: Injustice, losing a target, being confined\n- Alignment: Good\n- Background: Grew up protecting his birth town from enemies, and now protects all towns.\n- Short Greeting: \"Greetings friend! You've stumbled upon my path. What say you?\"",
+  "sender": "ASSISTANT",
+  "friendship": 0,
+  "auto_generated": 0
+}
\ No newline at end of file

src/test/resources/data/creaturechat/chatdata/nervous-rogue.json

+{
+  "entityId": "6fcfb8cb-29a7-4a92-853d-ef63066c5b35",
+  "playerId": "343a2278-4579-3a59-8a3a-aa2690a75202",
+  "currentMessage": "",
+  "currentLineNumber": 0,
+  "status": "DISPLAY",
+  "previousMessages": [
+    {
+      "message": "H-hello there... I-I hope you're not h-here to cause trouble...",
+      "sender": "ASSISTANT"
+    }
+  ],
+  "characterSheet": "- Name: Jasper\n- Personality: Nervous, anxious, and easily startled\n- Speaking Style / Tone: Stuttering and shaky, always on edge\n- Class: Rogue\n- Skills: Stealth, lock picking\n- Likes: Hiding in shadows, avoiding confrontation, collecting rare items\n- Dislikes: Loud noises, unexpected surprises, being the center of attention\n- Alignment: Lawful Neutral\n- Background: Former thief, escaped a life of crime\n- Short Greeting: \"H-hello there... I-I hope you're not h-here to cause trouble...\"",
+  "sender": "ASSISTANT",
+  "friendship": 0,
+  "auto_generated": 0
+}
\ No newline at end of file

src/test/resources/data/creaturechat/entities/pig.json

+{
+  "entity_health": "10.0/10.0",
+  "entity_type": "Pig"
+}
\ No newline at end of file

src/test/resources/data/creaturechat/players/player.json

+{
+  "player_active_effects": "",
+  "player_armor_chest": "air",
+  "player_armor_feet": "air",
+  "player_armor_head": "air",
+  "player_armor_legs": "air",
+  "player_biome": "plains",
+  "player_health": "8.5/20.0",
+  "player_held_item": "porkchop",
+  "player_hunger": "17",
+  "player_is_creative": "yes",
+  "player_is_on_ground": "yes",
+  "player_is_swimming": "no",
+  "player_language": "English (US)",
+  "player_name": "Steve"
+}
\ No newline at end of file

src/test/resources/data/creaturechat/worlds/world.json

+{
+  "world_difficulty": "normal",
+  "world_is_hardcore": "no",
+  "world_is_raining": "no",
+  "world_is_thundering": "no",
+  "world_moon_phase": "Waning Gibbous",
+  "world_time": "19:01"
+}
\ No newline at end of file