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53 changes: 53 additions & 0 deletions frontend/src/leftoverMapAxisBadge.test.ts
Original file line number Diff line number Diff line change
Expand Up @@ -5,8 +5,10 @@ import {
LEFTOVER_MAP_AXIS_BADGE_SHARE,
LEFTOVER_MAP_AXIS_BADGE_SINGULAR,
} from "./leftoverMapAxisBadge";
import { LEFTOVER_MAP_COMPARE_PLOT_AXIS_SHARE } from "./leftoverMapPlotAxisShare";
import {
leftoverMapCompareAxisBadge,
leftoverMapComparePlotAxisBadge,
LEFTOVER_MAP_COMPARE_AXIS_SHARE,
LEFTOVER_MAP_COMPARE_AXIS_SINGULAR,
LEFTOVER_MAP_COMPARE_AXIS_SINGULAR_SHARE,
Expand Down Expand Up @@ -68,6 +70,57 @@ describe("leftoverMapAxisBadgeSingular", () => {
});
});

describe("leftoverMapComparePlotAxisBadge", () => {
it("returns no graphic badge when neither persisted measure is usable", () => {
expect(
leftoverMapComparePlotAxisBadge({
axis_index: 1,
leftover_singular_value: Number.NaN,
leftover_share: Number.POSITIVE_INFINITY,
}),
).toBeNull();
});

it("keeps graphic share-only evidence independent", () => {
expect(
leftoverMapComparePlotAxisBadge({
axis_index: 2,
leftover_singular_value: null,
leftover_share: 0.18,
}),
).toEqual({
template: LEFTOVER_MAP_COMPARE_PLOT_AXIS_SHARE,
values: { axis: 2, share: "18" },
});
});

it("keeps graphic singular-only evidence independent and preserves finite zero", () => {
expect(
leftoverMapComparePlotAxisBadge({
axis_index: 1,
leftover_singular_value: 0,
leftover_share: null,
}),
).toEqual({
template: LEFTOVER_MAP_COMPARE_PLOT_AXIS_SINGULAR,
values: { axis: 1, value: "0.00" },
});
});

it("combines persisted graphic singular and share evidence without deriving either", () => {
expect(
leftoverMapComparePlotAxisBadge({
axis_index: 1,
leftover_singular_value: 1.24,
leftover_share: 0.42,
}),
).toEqual({
template: LEFTOVER_MAP_COMPARE_PLOT_AXIS_SINGULAR_SHARE,
values: { axis: 1, value: "1.24", share: "42" },
});
});
});

describe("leftoverMapCompareAxisBadge", () => {
it("keeps persisted singular and share evidence independent", () => {
expect(
Expand Down
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