@netdata/charts/dist/es6/chartLibraries/dygraph/index.test.js

Netdata frontend SDK and chart utilities

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import { loadHeatmapPayload, makeTestChart } from "@jest/testUtilities";
import dygraphChart from "./index";
var mockDygraph = {
  updateOptions: jest.fn(),
  destroy: jest.fn(),
  resize: jest.fn(),
  setSelection: jest.fn(),
  xAxisRange: jest.fn(function () {
    return [1617946860000, 1617947750000];
  }),
  getArea: jest.fn(function () {
    return {
      w: 800,
      h: 400
    };
  }),
  toDomXCoord: jest.fn(function (x) {
    return x;
  }),
  xAxisExtremes: jest.fn(function () {
    return [1617946860000, 1617947750000];
  }),
  renderGraph_: jest.fn(function (x) {
    return x;
  })
};
jest.mock("dygraphs", function () {
  return jest.fn(function () {
    return mockDygraph;
  });
});
describe("dygraphChart", function () {
  beforeEach(function () {
    jest.clearAllMocks();
  });
  it("creates chart instance with required methods", function () {
    var _makeTestChart = makeTestChart(),
      sdk = _makeTestChart.sdk,
      chart = _makeTestChart.chart;
    var instance = dygraphChart(sdk, chart);
    expect(instance).toHaveProperty("mount");
    expect(instance).toHaveProperty("unmount");
    expect(instance).toHaveProperty("render");
    expect(instance).toHaveProperty("getDygraph");
    expect(instance).toHaveProperty("getChartWidth");
    expect(instance).toHaveProperty("getChartHeight");
    expect(_typeof(instance.mount)).toBe("function");
    expect(_typeof(instance.unmount)).toBe("function");
    expect(_typeof(instance.render)).toBe("function");
  });
  it("mounts and creates dygraph instance", function () {
    var _makeTestChart2 = makeTestChart({
        attributes: {
          theme: "dark",
          outOfLimits: false
        }
      }),
      sdk = _makeTestChart2.sdk,
      chart = _makeTestChart2.chart;
    chart.getPayload = function () {
      return {
        data: [[1617946860000, 10, 20]],
        labels: ["time", "load1", "load5"]
      };
    };
    chart.getDateWindow = function () {
      return [1617946860000, 1617947750000];
    };
    chart.formatXAxis = function (x) {
      return x.toString();
    };
    chart.getThemeAttribute = function () {
      return "#333";
    };
    chart.getUnitSign = function () {
      return "";
    };
    var instance = dygraphChart(sdk, chart);
    var element = document.createElement("div");
    expect(function () {
      return instance.mount(element);
    }).not.toThrow();
    var Dygraph = require("dygraphs");
    expect(Dygraph).toHaveBeenCalledWith(element, expect.any(Array), expect.any(Object));
    expect(element.classList.contains("dark")).toBe(true);
  });
  it("handles empty data by creating placeholder chart", function () {
    var _makeTestChart3 = makeTestChart({
        attributes: {
          theme: "light",
          outOfLimits: true
        }
      }),
      sdk = _makeTestChart3.sdk,
      chart = _makeTestChart3.chart;
    chart.getPayload = function () {
      return {
        data: [],
        labels: []
      };
    };
    chart.getDateWindow = function () {
      return [1617946860000, 1617947750000];
    };
    chart.formatXAxis = function (x) {
      return x.toString();
    };
    chart.getThemeAttribute = function () {
      return "#333";
    };
    chart.getUnitSign = function () {
      return "";
    };
    var instance = dygraphChart(sdk, chart);
    var element = document.createElement("div");
    instance.mount(element);
    var Dygraph = require("dygraphs");
    expect(Dygraph).toHaveBeenCalledWith(element, [[0]], expect.objectContaining({
      labels: ["X"]
    }));
  });
  it("prevents multiple mounts on same element", function () {
    var _makeTestChart4 = makeTestChart({
        attributes: {
          theme: "dark"
        }
      }),
      sdk = _makeTestChart4.sdk,
      chart = _makeTestChart4.chart;
    chart.getPayload = function () {
      return {
        data: [[1617946860000, 10]],
        labels: ["time", "value"]
      };
    };
    chart.getDateWindow = function () {
      return [1617946860000, 1617947750000];
    };
    chart.formatXAxis = function (x) {
      return x.toString();
    };
    chart.getThemeAttribute = function () {
      return "#333";
    };
    chart.getUnitSign = function () {
      return "";
    };
    var instance = dygraphChart(sdk, chart);
    var element = document.createElement("div");
    instance.mount(element);
    var Dygraph = require("dygraphs");
    var firstCallCount = Dygraph.mock.calls.length;
    instance.mount(element);
    expect(Dygraph.mock.calls.length).toBe(firstCallCount);
  });
  it("renders without errors when not mounted", function () {
    var _makeTestChart5 = makeTestChart(),
      sdk = _makeTestChart5.sdk,
      chart = _makeTestChart5.chart;
    var instance = dygraphChart(sdk, chart);
    expect(function () {
      return instance.render();
    }).not.toThrow();
  });
  it("skips render when highlighting, panning, or processing", function () {
    var _makeTestChart6 = makeTestChart({
        attributes: {
          highlighting: true,
          panning: false,
          processing: false
        }
      }),
      sdk = _makeTestChart6.sdk,
      chart = _makeTestChart6.chart;
    chart.getPayload = function () {
      return {
        data: [[1617946860000, 10]],
        labels: ["time", "value"]
      };
    };
    chart.getDateWindow = function () {
      return [1617946860000, 1617947750000];
    };
    chart.formatXAxis = function (x) {
      return x.toString();
    };
    chart.getThemeAttribute = function () {
      return "#333";
    };
    chart.getUnitSign = function () {
      return "";
    };
    var instance = dygraphChart(sdk, chart);
    var element = document.createElement("div");
    instance.mount(element);
    instance.render();
    expect(mockDygraph.updateOptions).not.toHaveBeenCalled();
  });
  it("unmounts without errors", function () {
    var _makeTestChart7 = makeTestChart(),
      sdk = _makeTestChart7.sdk,
      chart = _makeTestChart7.chart;
    chart.getPayload = function () {
      return {
        data: [[1617946860000, 10]],
        labels: ["time", "value"]
      };
    };
    chart.getDateWindow = function () {
      return [1617946860000, 1617947750000];
    };
    chart.formatXAxis = function (x) {
      return x.toString();
    };
    chart.getThemeAttribute = function () {
      return "#333";
    };
    chart.getUnitSign = function () {
      return "";
    };
    var instance = dygraphChart(sdk, chart);
    var element = document.createElement("div");
    instance.mount(element);
    expect(function () {
      return instance.unmount();
    }).not.toThrow();
    expect(mockDygraph.destroy).toHaveBeenCalled();
  });
  it("returns dygraph instance from getDygraph", function () {
    var _makeTestChart8 = makeTestChart(),
      sdk = _makeTestChart8.sdk,
      chart = _makeTestChart8.chart;
    chart.getPayload = function () {
      return {
        data: [[1617946860000, 10]],
        labels: ["time", "value"]
      };
    };
    chart.getDateWindow = function () {
      return [1617946860000, 1617947750000];
    };
    chart.formatXAxis = function (x) {
      return x.toString();
    };
    chart.getThemeAttribute = function () {
      return "#333";
    };
    chart.getUnitSign = function () {
      return "";
    };
    var instance = dygraphChart(sdk, chart);
    var element = document.createElement("div");
    expect(instance.getDygraph()).toBeNull();
    instance.mount(element);
    expect(instance.getDygraph()).toBe(mockDygraph);
  });
  it("calculates chart dimensions from dygraph when mounted", function () {
    var _makeTestChart9 = makeTestChart(),
      sdk = _makeTestChart9.sdk,
      chart = _makeTestChart9.chart;
    chart.getPayload = function () {
      return {
        data: [[1617946860000, 10]],
        labels: ["time", "value"]
      };
    };
    chart.getDateWindow = function () {
      return [1617946860000, 1617947750000];
    };
    chart.formatXAxis = function (x) {
      return x.toString();
    };
    chart.getThemeAttribute = function () {
      return "#333";
    };
    chart.getUnitSign = function () {
      return "";
    };
    var instance = dygraphChart(sdk, chart);
    var element = document.createElement("div");
    instance.mount(element);
    expect(instance.getChartWidth()).toBe(800);
    expect(instance.getChartHeight()).toBe(400);
  });
  it("enables dygraph stepPlot when the stepPlot attribute is set", function () {
    var _makeTestChart0 = makeTestChart({
        attributes: {
          theme: "dark",
          chartType: "line",
          stepPlot: true
        }
      }),
      sdk = _makeTestChart0.sdk,
      chart = _makeTestChart0.chart;
    chart.getPayload = function () {
      return {
        data: [[1617946860000, 1]],
        labels: ["time", "value"]
      };
    };
    chart.getDateWindow = function () {
      return [1617946860000, 1617947750000];
    };
    chart.formatXAxis = function (x) {
      return x.toString();
    };
    chart.getThemeAttribute = function () {
      return "#333";
    };
    chart.getUnitSign = function () {
      return "";
    };
    var instance = dygraphChart(sdk, chart);
    instance.mount(document.createElement("div"));
    var Dygraph = require("dygraphs");
    expect(Dygraph).toHaveBeenCalledWith(expect.any(Object), expect.any(Array), expect.objectContaining({
      stepPlot: true
    }));
  });
  it("does not enable dygraph stepPlot by default", function () {
    var _makeTestChart1 = makeTestChart({
        attributes: {
          theme: "dark",
          chartType: "line"
        }
      }),
      sdk = _makeTestChart1.sdk,
      chart = _makeTestChart1.chart;
    chart.getPayload = function () {
      return {
        data: [[1617946860000, 10]],
        labels: ["time", "value"]
      };
    };
    chart.getDateWindow = function () {
      return [1617946860000, 1617947750000];
    };
    chart.formatXAxis = function (x) {
      return x.toString();
    };
    chart.getThemeAttribute = function () {
      return "#333";
    };
    chart.getUnitSign = function () {
      return "";
    };
    var instance = dygraphChart(sdk, chart);
    instance.mount(document.createElement("div"));
    var Dygraph = require("dygraphs");
    expect(Dygraph).toHaveBeenCalledWith(expect.any(Object), expect.any(Array), expect.objectContaining({
      stepPlot: false
    }));
  });
  it("preserves compact scaled heatmap y-axis labels", function () {
    var ids = ["0.005", "1000", "+Inf"];
    var _makeTestChart10 = makeTestChart({
        attributes: {
          chartType: "heatmap",
          groupBy: ["dimension"],
          selectedLegendDimensions: [],
          viewDimensions: {
            ids: ids,
            names: ids,
            priorities: ids.map(function (_, index) {
              return index;
            }),
            units: ids.map(function () {
              return "";
            }),
            contexts: ids.map(function () {
              return "";
            }),
            grouped: ["dimension"]
          }
        }
      }),
      sdk = _makeTestChart10.sdk,
      chart = _makeTestChart10.chart;
    chart.updateDimensions();
    chart.getPayload = function () {
      return {
        data: [[1617946860000, 1, 2, 3]],
        labels: ["time", "0.005", "1000", "+Inf"]
      };
    };
    chart.getDateWindow = function () {
      return [1617946860000, 1617947750000];
    };
    chart.formatXAxis = function (x) {
      return x.toString();
    };
    chart.getThemeAttribute = function () {
      return "#333";
    };
    chart.getUnitSign = function () {
      return "";
    };
    var instance = dygraphChart(sdk, chart);
    instance.mount(document.createElement("div"));
    var Dygraph = require("dygraphs");
    var options = Dygraph.mock.calls[Dygraph.mock.calls.length - 1][2];
    var formatter = options.axes.y.axisLabelFormatter;
    expect(formatter("5m")).toBe("5m");
    expect(formatter("1k")).toBe("1k");
    expect(formatter("+Inf")).toBe("+Inf");
    expect(formatter("0.005")).toBe(0.005);
  });
  it("uses cropped heatmap bucket count for y-axis range", /*#__PURE__*/_asyncToGenerator(/*#__PURE__*/_regenerator().m(function _callee() {
    var ids, _makeTestChart11, sdk, chart, instance, Dygraph, options;
    return _regenerator().w(function (_context) {
      while (1) switch (_context.n) {
        case 0:
          ids = ["0", "1", "2", "3", "4", "5", "6"];
          _makeTestChart11 = makeTestChart({
            attributes: {
              chartType: "heatmap",
              groupBy: ["dimension"],
              selectedLegendDimensions: [],
              viewDimensions: {
                ids: ids,
                names: ids,
                priorities: ids.map(function (_, index) {
                  return index;
                }),
                units: ids.map(function () {
                  return "";
                }),
                contexts: ids.map(function () {
                  return "";
                }),
                grouped: ["dimension"]
              }
            }
          }), sdk = _makeTestChart11.sdk, chart = _makeTestChart11.chart;
          _context.n = 1;
          return loadHeatmapPayload(chart, ids, [[0, 0, 1, 0, 2, 0, 0]], {
            timestamp: 1617946860000
          });
        case 1:
          chart.getDateWindow = function () {
            return [1617946860000, 1617947750000];
          };
          chart.formatXAxis = function (x) {
            return x.toString();
          };
          chart.getThemeAttribute = function () {
            return "#333";
          };
          chart.getUnitSign = function () {
            return "";
          };
          instance = dygraphChart(sdk, chart);
          instance.mount(document.createElement("div"));
          Dygraph = require("dygraphs");
          options = Dygraph.mock.calls[Dygraph.mock.calls.length - 1][2];
          expect(options.valueRange).toEqual([0, 5]);
        case 2:
          return _context.a(2);
      }
    }, _callee);
  })));
  it("returns axis range from dygraph", function () {
    var _makeTestChart12 = makeTestChart(),
      sdk = _makeTestChart12.sdk,
      chart = _makeTestChart12.chart;
    chart.getPayload = function () {
      return {
        data: [[1617946860000, 10]],
        labels: ["time", "value"]
      };
    };
    chart.getDateWindow = function () {
      return [1617946860000, 1617947750000];
    };
    chart.formatXAxis = function (x) {
      return x.toString();
    };
    chart.getThemeAttribute = function () {
      return "#333";
    };
    chart.getUnitSign = function () {
      return "";
    };
    var instance = dygraphChart(sdk, chart);
    var element = document.createElement("div");
    instance.mount(element);
    expect(instance.getXAxisRange()).toEqual([1617946860000, 1617947750000]);
  });
});