navy/lib/middleware/__tests__/tag-override.js

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"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
var _chai = require("chai");
var _tagOverride = _interopRequireDefault(require("../tag-override"));
/* eslint-env mocha */

describe('tag-override middleware', function () {
  it('should add the tag when service image has no tag', function () {
    const config = {
      services: {
        api: {
          image: 'navy/api'
        }
      }
    };
    const state = {
      services: {
        api: {
          _tag: 'v1.2.3'
        }
      }
    };
    const result = (0, _tagOverride.default)(config, state);
    (0, _chai.expect)(result.services.api.image).to.equal('navy/api:v1.2.3');
  });
  it('should replace an existing tag with the override', function () {
    const config = {
      services: {
        api: {
          image: 'navy/api:old'
        }
      }
    };
    const state = {
      services: {
        api: {
          _tag: 'new'
        }
      }
    };
    const result = (0, _tagOverride.default)(config, state);
    (0, _chai.expect)(result.services.api.image).to.equal('navy/api:new');
  });
  it('should leave the image untouched when state has no _tag for the service', function () {
    const config = {
      services: {
        api: {
          image: 'navy/api:old'
        }
      }
    };
    const state = {
      services: {
        api: {}
      }
    };
    const result = (0, _tagOverride.default)(config, state);
    (0, _chai.expect)(result.services.api.image).to.equal('navy/api:old');
  });
  it('should ignore state services that have no matching service in config', function () {
    const config = {
      services: {
        api: {
          image: 'api:1'
        }
      }
    };
    const state = {
      services: {
        web: {
          _tag: 'lts'
        }
      }
    };
    const result = (0, _tagOverride.default)(config, state);
    (0, _chai.expect)(result.services.api.image).to.equal('api:1');
    (0, _chai.expect)(result.services).to.not.have.property('web');
  });
  it('should treat a missing state.services as an empty object', function () {
    const config = {
      services: {
        api: {
          image: 'api:1'
        }
      }
    };
    const state = {};
    const result = (0, _tagOverride.default)(config, state);
    (0, _chai.expect)(result.services.api.image).to.equal('api:1');
  });
});