112 lines
4.1 KiB
TypeScript
112 lines
4.1 KiB
TypeScript
import { describe, expect, it } from "vitest";
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const {
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buildLineCellRenderRuns,
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createBlankCell,
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cloneTerminalCell,
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createContinuationCell,
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createTerminalCell,
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lineCellsToText,
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measureCharDisplayColumns,
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measureLineCellsDisplayColumns,
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resolveUniformLineBackground
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} = require("./terminalCursorModel.js");
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describe("terminalCursorModel", () => {
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it("按 cell 列宽处理宽字符和组合字符", () => {
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expect(measureCharDisplayColumns("a")).toBe(1);
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expect(measureCharDisplayColumns("中")).toBe(2);
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expect(measureCharDisplayColumns("\u0301")).toBe(0);
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expect(measureCharDisplayColumns("😀")).toBe(2);
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});
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it("按固定列缓冲区统计显示列宽，不把 continuation 重复计数", () => {
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const row = [
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createTerminalCell("A", null, 1),
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createTerminalCell("中", null, 2),
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createContinuationCell(null),
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createTerminalCell("B", null, 1)
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];
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expect(lineCellsToText(row)).toBe("A中B");
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expect(measureLineCellsDisplayColumns(row)).toBe(4);
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});
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it("渲染 run 会把宽字符 owner 独立出来，并跳过 continuation 占位格", () => {
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const styleA = { fg: "#fff", bg: "", bold: false, underline: false };
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const styleB = { fg: "#0f0", bg: "", bold: false, underline: false };
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const row = [
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createTerminalCell("A", styleA, 1),
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createTerminalCell("B", styleA, 1),
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createTerminalCell("中", styleA, 2),
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createContinuationCell(styleA),
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createTerminalCell("C", styleB, 1)
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];
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expect(buildLineCellRenderRuns(row)).toEqual([
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{ text: "AB", style: styleA, columns: 2, fixed: false },
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{ text: "中", style: styleA, columns: 2, fixed: true },
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{ text: "C", style: styleB, columns: 1, fixed: false }
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]);
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});
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it("placeholder blank cell 会保留列宽背景，但不会把尾随补位写进文本快照", () => {
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const style = { fg: "", bg: "#666666", bold: false, underline: false };
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const row = [
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createBlankCell(style),
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createBlankCell(style),
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createTerminalCell("X", style, 1),
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createBlankCell(style),
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createBlankCell(style)
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];
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expect(lineCellsToText(row)).toBe(" X");
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expect(buildLineCellRenderRuns(row)).toEqual([
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{ text: "", style, columns: 2, fixed: true },
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{ text: "X", style, columns: 1, fixed: false },
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{ text: "", style, columns: 2, fixed: true }
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]);
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});
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it("整行 run 若共享同一个非空背景色，会返回可提升到 line 层的背景", () => {
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const bg = "#203040";
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const styleA = { fg: "#ffffff", bg, bold: false, underline: false };
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const styleB = { fg: "#89c2ff", bg, bold: true, underline: false };
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const row = [
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createBlankCell(styleA),
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createTerminalCell(">", styleA, 1),
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createTerminalCell(" ", styleA, 1),
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createTerminalCell("U", styleB, 1),
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createTerminalCell("s", styleB, 1),
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createTerminalCell("e", styleB, 1),
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createBlankCell(styleB)
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];
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expect(resolveUniformLineBackground(buildLineCellRenderRuns(row))).toBe(bg);
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});
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it("只要一行里存在无背景或不同背景的 run，就不会提升到 line 层", () => {
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const rowWithGap = [
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createTerminalCell("A", { fg: "#fff", bg: "#111111", bold: false, underline: false }, 1),
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createTerminalCell("B", { fg: "#fff", bg: "", bold: false, underline: false }, 1)
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];
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const rowWithMixedBg = [
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createTerminalCell("A", { fg: "#fff", bg: "#111111", bold: false, underline: false }, 1),
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createTerminalCell("B", { fg: "#fff", bg: "#222222", bold: false, underline: false }, 1)
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];
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expect(resolveUniformLineBackground(buildLineCellRenderRuns(rowWithGap))).toBe("");
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expect(resolveUniformLineBackground(buildLineCellRenderRuns(rowWithMixedBg))).toBe("");
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});
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it("克隆 cell 时会复制样式对象，避免覆盖时污染原对象", () => {
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const original = createTerminalCell("A", { fg: "#fff", bold: true }, 1);
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const cloned = cloneTerminalCell(original);
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cloned.style.fg = "#000";
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expect(original.style.fg).toBe("#fff");
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expect(cloned.style.fg).toBe("#000");
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expect(cloned.width).toBe(1);
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});
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});
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