83 lines
1.9 KiB
JavaScript
83 lines
1.9 KiB
JavaScript
"use strict";
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const presetEnv = require("../");
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describe("isPluginRequired", () => {
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const MAX_VERSION = `${Number.MAX_SAFE_INTEGER}.0.0`;
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it("returns true if no targets are specified", () => {
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expect(presetEnv.isPluginRequired({}, {})).toBe(true);
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});
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it("returns true if plugin feature is not implemented in one or more targets", () => {
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let targets;
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const plugin = {
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edge: false,
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firefox: 45,
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chrome: 49,
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};
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targets = {
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chrome: MAX_VERSION,
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firefox: MAX_VERSION,
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};
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expect(presetEnv.isPluginRequired(targets, plugin)).toBe(false);
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targets = {
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edge: "12",
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};
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expect(presetEnv.isPluginRequired(targets, plugin)).toBe(true);
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});
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it("returns false if plugin feature is implemented by lower than target", () => {
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const plugin = {
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chrome: 49,
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};
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const targets = {
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chrome: MAX_VERSION,
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};
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expect(presetEnv.isPluginRequired(targets, plugin)).toBe(false);
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});
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it("returns false if plugin feature is implemented is equal to target", () => {
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const plugin = {
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chrome: 49,
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};
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const targets = {
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chrome: "49.0.0",
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};
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expect(presetEnv.isPluginRequired(targets, plugin)).toBe(false);
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});
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it("returns true if plugin feature is implemented is greater than target", () => {
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const plugin = {
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chrome: 50,
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};
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const targets = {
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chrome: "49.0.0",
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};
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expect(presetEnv.isPluginRequired(targets, plugin)).toBe(true);
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});
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it("returns when target is a decimal", () => {
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const plugin = {
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node: 6.9,
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};
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const targets = {
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node: "6.10.0",
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};
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expect(presetEnv.isPluginRequired(targets, plugin)).toBe(false);
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});
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it("throws an error if target version is invalid", () => {
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const plugin = {
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chrome: 50,
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};
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const targets = {
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chrome: 55,
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};
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expect(() => presetEnv.isPluginRequired(targets, plugin)).toThrow();
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});
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});
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