mirror of https://github.com/webpack/webpack.git
54 lines
1.9 KiB
JavaScript
54 lines
1.9 KiB
JavaScript
it("should load only used exports", async (done) => {
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const m = await import("./dir1/a");
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expect(m.default).toBe(3);
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expect(m.usedExports).toEqual(["default", "usedExports"]);
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done();
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});
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it("should get warning on using 'webpackExports' with statically analyze-able dynamic import", async (done) => {
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const m = await import(/* webpackExports: ["default"] */"./dir1/a?2");
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expect(m.a).toBe(1);
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done();
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});
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it("should not tree-shake default export for exportsType=default module", async () => {
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const m1 = await import("./dir2/json/object.json");
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const m2 = await import("./dir2/json/array.json");
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const m3 = await import("./dir2/json/primitive.json");
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expect(m1.default).toEqual({ a: 1 });
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expect(m2.default).toEqual(["a"]);
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expect(m3.default).toBe("a");
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const m4 = await import("./dir2/a");
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expect(m4.default).toEqual({ a: 1, b: 2 });
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});
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it("should not tree-shake default export for exportsType=default context module", async () => {
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const dir = "json";
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const m1 = await import(`./dir3/${dir}/object.json`);
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const m2 = await import(`./dir3/${dir}/array.json`);
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const m3 = await import(`./dir3/${dir}/primitive.json`);
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expect(m1.default).toEqual({ a: 1 });
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expect(m2.default).toEqual(["a"]);
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expect(m3.default).toBe("a");
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const file = "a";
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const m4 = await import(`./dir3/${file}`);
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expect(m4.default).toEqual({ a: 1, b: 2 });
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});
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it("should not tree-shake if reassigin", async () => {
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let m = await import("./dir1/a?3");
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expect(m.default).toBe(3);
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expect(m.usedExports).toBe(true);
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m = {};
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})
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it("should tree-shake if its member call and strictThisContextOnImports is false", async () => {
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let m = await import("./dir4/a");
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expect(m.f()).toBe(undefined);
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expect(m.usedExports).toEqual(["f", "usedExports"]);
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let m2 = await import("./dir4/lib");
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expect(m2.b.f()).toBe(1);
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expect(m2.b.usedExports).toEqual(true);
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expect(m2.usedExports).toEqual(["b", "usedExports"]);
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})
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