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denoland-deno/std/fs/write_json_test.ts
Jesse Jackson f32d28019d
test(std): fs/writeJson add test for append option (#6889)
Co-authored-by: Ryan Dahl <ry@tinyclouds.org>
Co-authored-by: Nayeem Rahman <nayeemrmn99@gmail.com>
2020-08-11 11:04:14 +02:00

201 lines
5.5 KiB
TypeScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import * as path from "../path/mod.ts";
import {
assertEquals,
assertThrows,
assertThrowsAsync,
} from "../testing/asserts.ts";
import {
exists,
existsSync,
} from "./exists.ts";
import { writeJson, writeJsonSync } from "./write_json.ts";
const testdataDir = path.resolve("fs", "testdata");
Deno.test("writeJson not exists", async function (): Promise<void> {
const notExistsJsonFile = path.join(testdataDir, "writeJson_not_exists.json");
await writeJson(notExistsJsonFile, { a: "1" });
const content = await Deno.readTextFile(notExistsJsonFile);
await Deno.remove(notExistsJsonFile);
assertEquals(content, `{"a":"1"}\n`);
});
Deno.test("writeJson if not exists", async function (): Promise<void> {
const notExistsJsonFile = path.join(
testdataDir,
"writeJson_file_not_exists.json",
);
try {
assertThrowsAsync(
async function (): Promise<void> {
await writeJson(notExistsJsonFile, { a: "1" }, { create: false });
},
Deno.errors.NotFound,
);
} finally {
if (await exists(notExistsJsonFile)) await Deno.remove(notExistsJsonFile);
}
});
Deno.test("writeJson exists", async function (): Promise<void> {
const existsJsonFile = path.join(testdataDir, "writeJson_exists.json");
await Deno.writeFile(existsJsonFile, new Uint8Array());
try {
await writeJson(existsJsonFile, { a: "1" });
const content = await Deno.readTextFile(existsJsonFile);
assertEquals(content, `{"a":"1"}\n`);
} finally {
await Deno.remove(existsJsonFile);
}
});
Deno.test("writeJson spaces", async function (): Promise<void> {
const existsJsonFile = path.join(testdataDir, "writeJson_spaces.json");
await Deno.writeFile(existsJsonFile, new Uint8Array());
try {
await writeJson(existsJsonFile, { a: "1" }, { spaces: 2 });
const content = await Deno.readTextFile(existsJsonFile);
assertEquals(content, `{\n "a": "1"\n}\n`);
} finally {
await Deno.remove(existsJsonFile);
}
});
Deno.test("writeJson replacer", async function (): Promise<void> {
const existsJsonFile = path.join(testdataDir, "writeJson_replacer.json");
await Deno.writeFile(existsJsonFile, new Uint8Array());
try {
await writeJson(
existsJsonFile,
{ a: "1", b: "2", c: "3" },
{ replacer: ["a"] },
);
const content = await Deno.readTextFile(existsJsonFile);
assertEquals(content, `{"a":"1"}\n`);
} finally {
await Deno.remove(existsJsonFile);
}
});
Deno.test("writeJson append", async function (): Promise<void> {
const existsJsonFile = path.join(testdataDir, "writeJson_append.json");
await Deno.writeFile(existsJsonFile, new Uint8Array());
try {
await writeJson(existsJsonFile, { a: "1" }, { append: true });
await writeJson(existsJsonFile, { b: "2" }, { append: true });
const content = await Deno.readTextFile(existsJsonFile);
assertEquals(content, `{"a":"1"}\n{"b":"2"}\n`);
} finally {
await Deno.remove(existsJsonFile);
}
});
Deno.test("writeJsonSync not exists", function (): void {
const notExistsJsonFile = path.join(
testdataDir,
"writeJsonSync_not_exists.json",
);
writeJsonSync(notExistsJsonFile, { a: "1" });
const content = Deno.readTextFileSync(notExistsJsonFile);
Deno.removeSync(notExistsJsonFile);
assertEquals(content, `{"a":"1"}\n`);
});
Deno.test("writeJsonSync if not exists", function (): void {
const notExistsJsonFile = path.join(
testdataDir,
"writeJsonSync_file_not_exists.json",
);
try {
assertThrows(
function (): void {
writeJsonSync(notExistsJsonFile, { a: "1" }, { create: false });
},
Deno.errors.NotFound,
);
} finally {
if (existsSync(notExistsJsonFile)) Deno.removeSync(notExistsJsonFile);
}
});
Deno.test("writeJsonSync exists", function (): void {
const existsJsonFile = path.join(testdataDir, "writeJsonSync_exists.json");
Deno.writeFileSync(existsJsonFile, new Uint8Array());
try {
writeJsonSync(existsJsonFile, { a: "1" });
const content = Deno.readTextFileSync(existsJsonFile);
assertEquals(content, `{"a":"1"}\n`);
} finally {
Deno.removeSync(existsJsonFile);
}
});
Deno.test("writeJsonSync spaces", function (): void {
const existsJsonFile = path.join(testdataDir, "writeJsonSync_spaces.json");
Deno.writeFileSync(existsJsonFile, new Uint8Array());
try {
writeJsonSync(existsJsonFile, { a: "1" }, { spaces: 2 });
const content = Deno.readTextFileSync(existsJsonFile);
assertEquals(content, `{\n "a": "1"\n}\n`);
} finally {
Deno.removeSync(existsJsonFile);
}
});
Deno.test("writeJsonSync replacer", function (): void {
const existsJsonFile = path.join(
testdataDir,
"writeJsonSync_replacer.json",
);
Deno.writeFileSync(existsJsonFile, new Uint8Array());
try {
writeJsonSync(
existsJsonFile,
{ a: "1", b: "2", c: "3" },
{ replacer: ["a"] },
);
const content = Deno.readTextFileSync(existsJsonFile);
assertEquals(content, `{"a":"1"}\n`);
} finally {
Deno.removeSync(existsJsonFile);
}
});
Deno.test("writeJsonSync append", function (): void {
const existsJsonFile = path.join(testdataDir, "writeJsonSync_append.json");
Deno.writeFileSync(existsJsonFile, new Uint8Array());
try {
writeJsonSync(existsJsonFile, { a: "1" }, { append: true });
writeJsonSync(existsJsonFile, { b: "2" }, { append: true });
const content = Deno.readTextFileSync(existsJsonFile);
assertEquals(content, `{"a":"1"}\n{"b":"2"}\n`);
} finally {
Deno.removeSync(existsJsonFile);
}
});