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dlantsdlants
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more tests!
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‎rplugin/node/magenta/src/tea/render.spec.ts

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import type { NeovimClient, Buffer } from "neovim";
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import { extractMountTree, NeovimTestHelper } from "../../test/preamble.js";
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import { d, mountView } from "./view.js";
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import * as assert from "assert";
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import { test } from "node:test";
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await test.describe("tea/render.spec.ts", async () => {
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let helper: NeovimTestHelper;
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let nvim: NeovimClient;
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let buffer: Buffer;
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test.before(() => {
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helper = new NeovimTestHelper();
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});
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test.beforeEach(async () => {
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nvim = await helper.startNvim();
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buffer = (await nvim.createBuffer(false, true)) as Buffer;
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await buffer.setOption("modifiable", false);
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});
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test.afterEach(() => {
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helper.stopNvim();
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});
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await test("rendering empty string", async () => {
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const view = () => d`1${""}2`;
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const mountedView = await mountView({
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view,
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props: {},
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mount: {
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nvim,
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buffer,
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startPos: { row: 0, col: 0 },
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endPos: { row: 0, col: 0 },
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},
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});
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const lines = await buffer.getLines({
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start: 0,
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end: 1,
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strictIndexing: false,
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});
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assert.equal(lines[0], "12");
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assert.deepStrictEqual(
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await extractMountTree(mountedView._getMountedNode()),
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{
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type: "node",
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startPos: {
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row: 0,
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col: 0,
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},
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endPos: {
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row: 0,
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col: 2,
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},
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children: [
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{
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content: "1",
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startPos: {
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col: 0,
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row: 0,
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},
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endPos: {
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col: 1,
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row: 0,
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},
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type: "string",
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},
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{
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content: "",
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startPos: {
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col: 1,
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row: 0,
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},
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endPos: {
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col: 1,
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row: 0,
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},
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type: "string",
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},
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{
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content: "2",
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startPos: {
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col: 1,
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row: 0,
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},
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endPos: {
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col: 2,
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row: 0,
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},
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type: "string",
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},
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],
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},
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);
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});
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await test("rendering multi-line interpolation", async () => {
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const multiLineValue = `first line
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second line
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third line`;
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const view = () => d`before${multiLineValue}after`;
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const mountedView = await mountView({
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view,
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props: {},
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mount: {
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nvim,
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buffer,
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startPos: { row: 0, col: 0 },
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endPos: { row: 0, col: 0 },
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},
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});
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const lines = await buffer.getLines({
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start: 0,
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end: 4,
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strictIndexing: false,
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});
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assert.deepStrictEqual(lines, [
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"beforefirst line",
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"second line",
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"third lineafter",
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]);
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assert.deepStrictEqual(
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await extractMountTree(mountedView._getMountedNode()),
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{
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type: "node",
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startPos: {
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row: 0,
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col: 0,
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},
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endPos: {
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row: 2,
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col: 15,
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},
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children: [
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{
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content: "before",
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startPos: {
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col: 0,
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row: 0,
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},
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endPos: {
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col: 6,
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row: 0,
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},
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type: "string",
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},
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{
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content: "first line\nsecond line\nthird line",
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startPos: {
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row: 0,
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col: 6,
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},
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endPos: {
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row: 2,
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col: 10,
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},
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type: "string",
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},
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{
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content: "after",
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startPos: {
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row: 2,
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col: 10,
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},
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endPos: {
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row: 2,
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col: 15,
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},
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type: "string",
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},
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],
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},
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);
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});
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await test("rendering multi-line template with interpolation", async () => {
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const name = "world";
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const view = () => d`
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Hello
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${name}
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Goodbye
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`;
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const mountedView = await mountView({
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view,
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props: {},
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mount: {
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nvim,
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buffer,
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startPos: { row: 0, col: 0 },
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endPos: { row: 0, col: 0 },
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},
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});
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const lines = await buffer.getLines({
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start: 0,
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end: 5,
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strictIndexing: false,
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});
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assert.deepStrictEqual(lines, [
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"",
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" Hello",
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" world",
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" Goodbye",
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" ",
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]);
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assert.deepStrictEqual(
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await extractMountTree(mountedView._getMountedNode()),
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{
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type: "node",
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startPos: {
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row: 0,
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col: 0,
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},
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endPos: {
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row: 4,
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col: 4,
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},
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children: [
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{
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content: "\n Hello\n ",
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startPos: {
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col: 0,
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row: 0,
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},
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endPos: {
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col: 8,
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row: 2,
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},
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type: "string",
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},
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{
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content: "world",
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startPos: {
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col: 8,
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row: 2,
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},
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endPos: {
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col: 13,
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row: 2,
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},
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type: "string",
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},
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{
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content: "\n Goodbye\n ",
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startPos: {
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col: 13,
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row: 2,
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},
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endPos: {
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col: 4,
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row: 4,
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},
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type: "string",
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},
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],
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},
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);
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});
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await test("rendering nested interpolation", async () => {
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const inner = d`(inner)`;
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const view = () => d`outer${inner}end`;
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const mountedView = await mountView({
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view,
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props: {},
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mount: {
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nvim,
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buffer,
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startPos: { row: 0, col: 0 },
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endPos: { row: 0, col: 0 },
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},
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});
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const lines = await buffer.getLines({
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start: 0,
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end: 1,
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strictIndexing: false,
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});
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assert.equal(lines[0], "outer(inner)end");
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assert.deepStrictEqual(
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await extractMountTree(mountedView._getMountedNode()),
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{
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type: "node",
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startPos: {
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row: 0,
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col: 0,
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},
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endPos: {
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row: 0,
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col: 15,
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},
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children: [
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{
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content: "outer",
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startPos: {
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row: 0,
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col: 0,
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},
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endPos: {
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row: 0,
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col: 5,
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},
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type: "string",
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},
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{
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type: "node",
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startPos: {
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row: 0,
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col: 5,
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},
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endPos: {
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row: 0,
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col: 12,
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},
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children: [
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{
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content: "(inner)",
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startPos: {
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row: 0,
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col: 5,
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},
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endPos: {
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row: 0,
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col: 12,
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},
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type: "string",
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},
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],
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},
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{
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content: "end",
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startPos: {
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col: 12,
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row: 0,
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},
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endPos: {
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col: 15,
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row: 0,
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},
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type: "string",
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},
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],
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},
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);
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});
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});

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