openmct/platform/features/plot/test/elements/PlotTelemetryFormatterSpec.js

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define(
    ["../../src/elements/PlotTelemetryFormatter"],
    function (PlotTelemetryFormatter) {

        describe("The PlotTelemetryFormatter", function () {
            var mockFormatter,
                formatter;

            beforeEach(function () {
                mockFormatter = jasmine.createSpyObj(
                    'telemetryFormatter',
                    ['formatDomainValue', 'formatRangeValue']
                );
                formatter = new PlotTelemetryFormatter(mockFormatter);
            });

            describe("using domain & range format keys", function () {
                var rangeFormat = "someRangeFormat",
                    domainFormat = "someDomainFormat";

                beforeEach(function () {
                    formatter.setRangeFormat(rangeFormat);
                    formatter.setDomainFormat(domainFormat);
                });

                it("includes format in formatDomainValue calls", function () {
                    mockFormatter.formatDomainValue.andReturn("formatted!");
                    expect(formatter.formatDomainValue(12321))
                        .toEqual("formatted!");
                    expect(mockFormatter.formatDomainValue)
                        .toHaveBeenCalledWith(12321, domainFormat);
                });

                it("includes format in formatRangeValue calls for strings", function () {
                    mockFormatter.formatRangeValue.andReturn("formatted!");
                    expect(formatter.formatRangeValue('foo'))
                        .toEqual("formatted!");
                    expect(mockFormatter.formatRangeValue)
                        .toHaveBeenCalledWith('foo', rangeFormat);
                });

                it("formats numeric values with three fixed digits", function () {
                    expect(formatter.formatRangeValue(10)).toEqual("10.000");
                });
            });

        });
    }
);