agreed-core/test/lib/server.customFuncs.js

agreed is a mock server and test client, agreed will be helper for Consumer Driven Contract

"use strict";

const agreedServer = require("../helper/server.js");
const test = require("eater/runner").test;
const http = require("http");
const AssertStream = require("assert-stream");
const assert = require("power-assert");
const mustCall = require("must-call");

test("server: check custom function", () => {
  const server = agreedServer({
    agrees: [
      {
        request: {
          path: "/test/custom/agreed/values",
          query: {
            a: "{:a}",
            b: "{:b}",
            c: "{:c}"
          },
          values: {
            a: 1,
            b: 2,
            c: 3
          }
        },
        response: {
          body: {
            sum: "{sum:a,b,c}"
          },
          funcs: {
            sum: (a, b, c) => parseInt(a) + parseInt(b) + parseInt(c)
          }
        }
      }
    ],
    port: 0
  });

  server.on("listening", () => {
    const options = {
      host: "localhost",
      method: "GET",
      path: "/test/custom/agreed/values?a=1&b=2&c=4",
      port: server.address().port
    };
    const req = http
      .request(options, res => {
        let data = "";
        res.on("data", d => (data += d));
        res.on(
          "end",
          mustCall(() => {
            const result = JSON.parse(data);
            assert.strictEqual(result.sum, 7);
          })
        );
        server.close();
      })
      .on("error", console.error);

    req.end();
  });
});

test("server: check custom function with array response", () => {
  const server = agreedServer({
    agrees: [
      {
        request: {
          path: "/test/custom/agreed/values",
          query: {
            a: "{:a}",
            b: "{:b}",
            c: "{:c}"
          },
          values: {
            a: 1,
            b: 2,
            c: 3
          }
        },
        response: {
          body: {
            sum: "{sum:a,b,c}"
          },
          funcs: {
            sum: (a, b, c) => {
              var A = parseInt(a);
              var B = parseInt(b);
              var C = parseInt(c);
              return [A + B + C, A * B * C, A - B - C];
            }
          }
        }
      }
    ],
    port: 0
  });

  server.on("listening", () => {
    const options = {
      host: "localhost",
      method: "GET",
      path: "/test/custom/agreed/values?a=20&b=30&c=40",
      port: server.address().port
    };
    const req = http
      .request(options, res => {
        let data = "";
        res.on("data", d => (data += d));
        res.on(
          "end",
          mustCall(() => {
            const result = JSON.parse(data);
            assert.deepStrictEqual(result.sum, [90, 24000, -50]);
          })
        );
        server.close();
      })
      .on("error", console.error);

    req.end();
  });
});