import { describe, expect, it } from "vitest"; import {  COMPOSER_FOOTER_COMPACT_BREAKPOINT_PX,  COMPOSER_FOOTER_WIDE_ACTIONS_COMPACT_BREAKPOINT_PX,  COMPOSER_PRIMARY_ACTIONS_COMPACT_BREAKPOINT_PX,  measureComposerFooterOverflowPx,  resolveComposerFooterContentWidth,  shouldForceCompactComposerFooterForFit,  shouldUseCompactComposerPrimaryActions,  shouldUseCompactComposerFooter,} from "./composerFooterLayout"; describe("shouldUseCompactComposerFooter", () => {  it("stays expanded without a measured width", () => {    expect(shouldUseCompactComposerFooter(null)).toBe(false);  });   it("switches to compact mode below the breakpoint", () => {    expect(shouldUseCompactComposerFooter(COMPOSER_FOOTER_COMPACT_BREAKPOINT_PX - 1)).toBe(true);  });   it("stays expanded at and above the breakpoint", () => {    expect(shouldUseCompactComposerFooter(COMPOSER_FOOTER_COMPACT_BREAKPOINT_PX)).toBe(false);    expect(shouldUseCompactComposerFooter(COMPOSER_FOOTER_COMPACT_BREAKPOINT_PX + 48)).toBe(false);  });   it("uses a higher breakpoint for wide action states", () => {    expect(      shouldUseCompactComposerFooter(COMPOSER_FOOTER_WIDE_ACTIONS_COMPACT_BREAKPOINT_PX - 1, {        hasWideActions: true,      }),    ).toBe(true);    expect(      shouldUseCompactComposerFooter(COMPOSER_FOOTER_WIDE_ACTIONS_COMPACT_BREAKPOINT_PX, {        hasWideActions: true,      }),    ).toBe(false);  });}); describe("shouldUseCompactComposerPrimaryActions", () => {  it("matches the wide footer breakpoint", () => {    expect(COMPOSER_PRIMARY_ACTIONS_COMPACT_BREAKPOINT_PX).toBe(      COMPOSER_FOOTER_WIDE_ACTIONS_COMPACT_BREAKPOINT_PX,    );    expect(      shouldUseCompactComposerPrimaryActions(COMPOSER_PRIMARY_ACTIONS_COMPACT_BREAKPOINT_PX - 1, {        hasWideActions: true,      }),    ).toBe(true);    expect(      shouldUseCompactComposerPrimaryActions(COMPOSER_PRIMARY_ACTIONS_COMPACT_BREAKPOINT_PX, {        hasWideActions: true,      }),    ).toBe(false);  });}); describe("measureComposerFooterOverflowPx", () => {  it("returns the overflow amount when content exceeds the footer width", () => {    expect(      measureComposerFooterOverflowPx({        footerContentWidth: 500,        leadingContentWidth: 340,        actionsWidth: 180,      }),    ).toBe(28);  });   it("returns zero when content fits", () => {    expect(      measureComposerFooterOverflowPx({        footerContentWidth: 500,        leadingContentWidth: 320,        actionsWidth: 160,      }),    ).toBe(0);  });}); describe("shouldForceCompactComposerFooterForFit", () => {  it("stays expanded when content widths fit within the footer", () => {    expect(      shouldForceCompactComposerFooterForFit({        footerContentWidth: 500,        leadingContentWidth: 320,        actionsWidth: 160,      }),    ).toBe(false);  });   it("stays expanded when minor overflow can be recovered by compacting primary actions", () => {    expect(      shouldForceCompactComposerFooterForFit({        footerContentWidth: 500,        leadingContentWidth: 340,        actionsWidth: 180,      }),    ).toBe(false);  });   it("forces footer compact mode when action compaction would not recover enough space", () => {    expect(      shouldForceCompactComposerFooterForFit({        footerContentWidth: 500,        leadingContentWidth: 420,        actionsWidth: 220,      }),    ).toBe(true);  });   it("ignores incomplete measurements", () => {    expect(      shouldForceCompactComposerFooterForFit({        footerContentWidth: null,        leadingContentWidth: 340,        actionsWidth: 180,      }),    ).toBe(false);  });}); describe("resolveComposerFooterContentWidth", () => {  it("subtracts horizontal padding from the measured footer width", () => {    expect(      resolveComposerFooterContentWidth({        footerWidth: 500,        paddingLeft: 10,        paddingRight: 10,      }),    ).toBe(480);  });   it("clamps negative widths to zero", () => {    expect(      resolveComposerFooterContentWidth({        footerWidth: 10,        paddingLeft: 8,        paddingRight: 8,      }),    ).toBe(0);  });   it("returns null when measurements are incomplete", () => {    expect(      resolveComposerFooterContentWidth({        footerWidth: null,        paddingLeft: 8,        paddingRight: 8,      }),    ).toBeNull();  });});