forked from tools/josh
93 lines
2.8 KiB
TypeScript
93 lines
2.8 KiB
TypeScript
import {expect} from "chai";
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import "mocha";
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import {File, NullFile, Path} from "../main/js/FileSystem";
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describe("file", () => {
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describe("open", () => {
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describe("append", () => {
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it("returns a stream that reads nothing", () => {
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expect(new File("contents").open("append").read()).to.equal("");
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});
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it("returns a stream that writes to the end of the file", () => {
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const file = new File("old");
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file.open("append").write("_new");
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expect(file.contents).to.equal("old_new");
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});
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});
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describe("read", () => {
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it("returns a stream that reads from the start of the file", () => {
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expect(new File("contents").open("read").read()).to.equal("contents");
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});
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});
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describe("write", () => {
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it("empties the file", () => {
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const file = new File("contents");
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file.open("write");
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expect(file.contents).to.equal("");
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});
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it("returns a stream that overwrites the file", () => {
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const file = new File("old");
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file.open("write").write("new");
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expect(file.contents).to.equal("new");
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});
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});
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});
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describe("nameString", () => {
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it("returns the name if no type is known", () => {
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expect(new File("contents").nameString("file", new Path("/file"))).to.equal("file");
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});
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it("uses the file extension to determine the value", () => {
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expect(new File("contents").nameString("file.txt", new Path("/file")))
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.to.equal(`<a class="file-link" onclick="execute('cat /file')">file.txt</a>`);
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});
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it("uses the mime type if no type is known", () => {
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expect(new File("contents", "txt").nameString("file", new Path("/file")))
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.to.equal(`<a class="file-link" onclick="execute('cat /file')">file</a>`);
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});
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it("overrides the file extension with the mime type", () => {
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expect(new File("link", "lnk").nameString("file.txt", new Path("/file")))
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.to.equal(`<a href="link" class="file-link" onclick="execute('open /file'); return false">file.txt</a>`);
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});
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});
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});
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describe("null file", () => {
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let file: NullFile;
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beforeEach(() => {
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file = new NullFile();
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});
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it("has empty contents", () => {
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expect(file.contents).to.equal("");
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});
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it("is empty after writing to it", () => {
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file.open("write").write("contents");
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expect(file.contents).to.equal("");
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});
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it("is empty when reading from a stream", () => {
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expect(file.open("read").read()).to.equal("");
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});
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});
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