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test: add test case for SurveyEngine.submitAnswer error condition #7

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test: add test case for SurveyEngine.submitAnswer error condition #7

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174 changes: 90 additions & 84 deletions field-logic/src/lib/engine.test.ts
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Original file line number Diff line number Diff line change
@@ -1,98 +1,104 @@
import { describe, it, expect, beforeEach } from 'vitest';
import { SurveyEngine } from './SurveyEngine';
import type { SurveyDefinition } from '../types/schema';
import { describe, it, expect, beforeEach } from "vitest";
import { SurveyEngine } from "./SurveyEngine";
import type { SurveyDefinition } from "../types/schema";

const mockSurvey: SurveyDefinition = {
meta: {
survey_id: "test_v1",
title: "Test Survey",
version: "1.0",
created_at: "2023-01-01"
meta: {
survey_id: "test_v1",
title: "Test Survey",
version: "1.0",
created_at: "2023-01-01",
},
config: {
allow_back_navigation: true,
save_progress_automatically: false,
},
nodes: [
{
id: "start",
type: "info",
content: { text: "Welcome" },
routing: { default: "q1" },
},
config: {
allow_back_navigation: true,
save_progress_automatically: false
{
id: "q1",
type: "boolean",
content: { question: "Yes or No?" },
routing: {
rules: [
{ operator: "equals", value: true, target: "q2_yes" },
{ operator: "equals", value: false, target: "q2_no" },
],
default: "end",
},
},
nodes: [
{
id: "start",
type: "info",
content: { text: "Welcome" },
routing: { default: "q1" }
},
{
id: "q1",
type: "boolean",
content: { question: "Yes or No?" },
routing: {
rules: [
{ operator: "equals", value: true, target: "q2_yes" },
{ operator: "equals", value: false, target: "q2_no" }
],
default: "end"
}
},
{
id: "q2_yes",
type: "text",
content: { question: "Why yes?" },
routing: { default: "end" }
},
{
id: "q2_no",
type: "text",
content: { question: "Why no?" },
routing: { default: "end" }
},
{
id: "end",
type: "summary",
content: { text: "Done" },
routing: { default: null }
}
]
{
id: "q2_yes",
type: "text",
content: { question: "Why yes?" },
routing: { default: "end" },
},
{
id: "q2_no",
type: "text",
content: { question: "Why no?" },
routing: { default: "end" },
},
{
id: "end",
type: "summary",
content: { text: "Done" },
routing: { default: null },
},
],
};

describe('SurveyEngine', () => {
let engine: SurveyEngine;
describe("SurveyEngine", () => {
let engine: SurveyEngine;

beforeEach(() => {
engine = new SurveyEngine(mockSurvey, "test_session");
});

beforeEach(() => {
engine = new SurveyEngine(mockSurvey, 'test_session');
});
it("should start at the first node", () => {
const node = engine.start();
expect(node.id).toBe("start");
});

it('should start at the first node', () => {
const node = engine.start();
expect(node.id).toBe('start');
});
it("should navigate to next node via default route", () => {
engine.start();
const node = engine.submitAnswer(null); // 'info' type has no answer
expect(node?.id).toBe("q1");
});

it('should navigate to next node via default route', () => {
engine.start();
const node = engine.submitAnswer(null); // 'info' type has no answer
expect(node?.id).toBe('q1');
});
it("should handle boolean branching (true)", () => {
engine.start();
engine.submitAnswer(null); // move to q1
const node = engine.submitAnswer(true); // Answer true to q1
expect(node?.id).toBe("q2_yes");
});

it('should handle boolean branching (true)', () => {
engine.start();
engine.submitAnswer(null); // move to q1
const node = engine.submitAnswer(true); // Answer true to q1
expect(node?.id).toBe('q2_yes');
});
it("should handle boolean branching (false)", () => {
engine.start();
engine.submitAnswer(null); // move to q1
const node = engine.submitAnswer(false); // Answer false to q1
expect(node?.id).toBe("q2_no");
});

it('should handle boolean branching (false)', () => {
engine.start();
engine.submitAnswer(null); // move to q1
const node = engine.submitAnswer(false); // Answer false to q1
expect(node?.id).toBe('q2_no');
});
it("should record answers in session", () => {
engine.start();
engine.submitAnswer(null); // q1
engine.submitAnswer(true); // q2_yes
const session = engine.getSession();

it('should record answers in session', () => {
engine.start();
engine.submitAnswer(null); // q1
engine.submitAnswer(true); // q2_yes
const session = engine.getSession();
expect(session.responses["q1"]).toBe(true);
expect(session.visitedNodes).toContain("q1");
expect(session.visitedNodes).toContain("q2_yes");
});

expect(session.responses['q1']).toBe(true);
expect(session.visitedNodes).toContain('q1');
expect(session.visitedNodes).toContain('q2_yes');
});
it("should throw error if submitAnswer called before start", () => {
expect(() => engine.submitAnswer("some answer")).toThrow(
"Survey not active",
);
});
});