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webpack/test/cleverMerge.unittest.js

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Improve cleverMerge to respect byDependency order correctly Allow to use "..." in `option.resolve` too Add "..." to schema when needed Apply dependency specific mainFields, aliasFields and conditionNames only for cjs and esm dependencies or when none is specified for backward-compat.
2020-07-11 16:30:18 +08:00
"use strict";
const {
DELETE,
chore: eslint more rules (#19648)
2025-07-03 17:06:45 +08:00
cachedCleverMerge,
cleverMerge,
allow function in byProperty configurations
2021-01-05 18:29:54 +08:00
removeOperations,
chore: eslint more rules (#19648)
2025-07-03 17:06:45 +08:00
resolveByProperty
Improve cleverMerge to respect byDependency order correctly Allow to use "..." in `option.resolve` too Add "..." to schema when needed Apply dependency specific mainFields, aliasFields and conditionNames only for cjs and esm dependencies or when none is specified for backward-compat.
2020-07-11 16:30:18 +08:00
} = require("../lib/util/cleverMerge");
describe("cleverMerge", () => {
const base = {
a1: [1],
a2: [1],
a3: [1],
b1: [1, "...", 2],
b2: [1, "...", 2],
b3: [1, "...", 2],
bySomething: {
x: {
a2: [5],
a3: [5, "...", 6],
a4: [5],
a5: [5, "...", 6],
b2: [5],
b3: [5, "...", 6],
b4: [5],
b5: [5, "...", 6]
}
}
};
const cases = {
"different properties": [{ a: 1 }, { b: 2 }, { a: 1, b: 2 }],
"same property": [{ a: 1 }, { a: 2 }, { a: 2 }],
arrays: [
{ a1: 1, a2: 1, b1: [], b2: [], c1: [1], c2: [1] },
{
a1: [2],
a2: [2, "...", 3],
b1: [2],
b2: [2, "...", 3],
c1: [2],
c2: [2, "...", 3]
},
{
a1: [2],
a2: [2, 1, 3],
b1: [2],
b2: [2, 3],
c1: [2],
c2: [2, 1, 3]
}
],
"by field override": [
base,
{
a1: [8],
a2: [8],
a3: [8],
a4: [8],
a5: [8],
b1: [8],
b2: [8],
b3: [8],
b4: [8],
b5: [8]
},
{
a1: [8],
a2: [8],
a3: [8],
a4: [8],
a5: [8],
b1: [8],
b2: [8],
b3: [8],
b4: [8],
b5: [8]
}
],
"by field extend default": [
base,
{
a1: [8, "..."],
a2: [8, "..."],
a3: [8, "..."],
a4: [8, "..."],
a5: [8, "..."],
b1: [8, "..."],
b2: [8, "..."],
b3: [8, "..."]
},
{
a1: [8, 1],
a2: [8, 1],
a3: [1],
a4: [8, "..."],
b1: [8, 1, "...", 2],
b2: [8, 1, "...", 2],
b3: [1, "...", 2],
bySomething: {
x: {
a2: [8, 5],
a3: [8, 5, "...", 6],
a4: [8, 5],
a5: [8, 5, "...", 6],
b2: [8, 5],
b3: [8, 5, "...", 6],
b4: [5],
b5: [5, "...", 6]
},
default: {
a3: [8, "..."],
a5: [8, "..."],
b3: [8, "..."]
}
}
}
],
"by field override other": [
base,
{
bySomething: {
y: {
a1: [8],
a2: [8],
a3: [8],
a4: [8],
a5: [8],
b1: [8],
b2: [8],
b3: [8],
b4: [8],
b5: [8]
}
}
},
{
a1: [1],
a2: [1],
a3: [1],
b1: [1, "...", 2],
b2: [1, "...", 2],
b3: [1, "...", 2],
bySomething: {
x: {
a2: [5],
a3: [5, "...", 6],
a4: [5],
a5: [5, "...", 6],
b2: [5],
b3: [5, "...", 6],
b4: [5],
b5: [5, "...", 6]
},
y: {
a1: [8],
a2: [8],
a3: [8],
a4: [8],
a5: [8],
b1: [8],
b2: [8],
b3: [8],
b4: [8],
b5: [8]
}
}
}
],
"by field override same": [
base,
{
bySomething: {
x: {
a1: [8],
a2: [8],
a3: [8],
a4: [8],
a5: [8],
b1: [8],
b2: [8],
b3: [8],
b4: [8],
b5: [8]
}
}
},
{
a1: [1],
a2: [1],
a3: [1],
b1: [1, "...", 2],
b2: [1, "...", 2],
b3: [1, "...", 2],
bySomething: {
x: {
a1: [8],
a2: [8],
a3: [8],
a4: [8],
a5: [8],
b1: [8],
b2: [8],
b3: [8],
b4: [8],
b5: [8]
}
}
}
],
"by field extend other": [
base,
{
bySomething: {
y: {
a1: [8, "..."],
a2: [8, "..."],
a3: [8, "..."],
a4: [8, "..."],
a5: [8, "..."],
b1: [8, "..."],
b2: [8, "..."],
b3: [8, "..."]
}
}
},
{
a1: [1],
a2: [1],
a3: [1],
b1: [1, "...", 2],
b2: [1, "...", 2],
b3: [1, "...", 2],
bySomething: {
x: {
a2: [5],
a3: [5, "...", 6],
a4: [5],
a5: [5, "...", 6],
b2: [5],
b3: [5, "...", 6],
b4: [5],
b5: [5, "...", 6]
},
y: {
a1: [8, "..."],
a2: [8, "..."],
a3: [8, "..."],
a4: [8, "..."],
a5: [8, "..."],
b1: [8, "..."],
b2: [8, "..."],
b3: [8, "..."]
}
}
}
],
"by field extend same": [
base,
{
bySomething: {
x: {
a1: [8, "..."],
a2: [8, "..."],
a3: [8, "..."],
a4: [8, "..."],
a5: [8, "..."],
b1: [8, "..."],
b2: [8, "..."],
b3: [8, "..."]
}
}
},
{
a1: [1],
a2: [1],
a3: [1],
b1: [1, "...", 2],
b2: [1, "...", 2],
b3: [1, "...", 2],
bySomething: {
x: {
a1: [8, "..."],
a2: [8, 5],
a3: [8, 5, "...", 6],
a4: [8, 5],
a5: [8, 5, "...", 6],
b1: [8, "..."],
b2: [8, 5],
b3: [8, 5, "...", 6],
b4: [5],
b5: [5, "...", 6]
}
}
}
],
"by field extend base, same and other": [
base,
{
a1: [7, "..."],
a2: [7, "..."],
a3: [7, "..."],
a4: [7, "..."],
a5: [7, "..."],
b1: [7, "..."],
b2: [7, "..."],
b3: [7, "..."],
bySomething: {
x: {
a1: [8, "..."],
a2: [8, "..."],
a3: [8, "..."],
a4: [8, "..."],
a5: [8, "..."],
b1: [8, "..."],
b2: [8, "..."],
b3: [8, "..."]
},
y: {
a1: [9, "..."],
a2: [9, "..."],
a3: [9, "..."],
a4: [9, "..."],
a5: [9, "..."],
b1: [9, "..."],
b2: [9, "..."],
b3: [9, "..."]
}
}
},
{
a1: [7, 1],
a2: [7, 1],
a3: [1],
a4: [7, "..."],
b1: [7, 1, "...", 2],
b2: [7, 1, "...", 2],
b3: [1, "...", 2],
bySomething: {
x: {
a1: [8, "..."],
a2: [8, 7, 5],
a3: [8, 7, 5, "...", 6],
a4: [8, 7, 5],
a5: [8, 7, 5, "...", 6],
b1: [8, "..."],
b2: [8, 7, 5],
b3: [8, 7, 5, "...", 6],
b4: [5],
b5: [5, "...", 6]
},
y: {
a1: [9, "..."],
a2: [9, "..."],
a3: [9, 7, "..."],
a4: [9, "..."],
a5: [9, 7, "..."],
b1: [9, "..."],
b2: [9, "..."],
b3: [9, 7, "..."]
},
default: {
a3: [7, "..."],
a5: [7, "..."],
b3: [7, "..."]
}
}
}
],
"by field promoting edge cases": [
{
a: [1, "...", 2],
b: [1, "...", 2],
c: [1, "...", 2],
d: [1, "...", 2],
bySomething: {
x: {
a: [3, "...", 4],
b: [3, "...", 4],
d: [3, "...", 4]
},
y: {
a: [5],
b: [5]
},
default: {
a: [6, "...", 7],
c: [6, "...", 7]
}
}
},
{
a: [8, "...", 9],
b: [8, "...", 9],
c: [8, "...", 9],
d: [8, "...", 9]
},
{
a: [1, "...", 2],
b: [1, "...", 2],
c: [1, "...", 2],
d: [1, "...", 2],
bySomething: {
x: {
a: [8, 3, "...", 4, 9],
b: [8, 3, "...", 4, 9],
c: [8, "...", 9],
d: [8, 3, "...", 4, 9]
},
y: {
a: [8, 5, 9],
b: [8, 5, 9],
c: [8, "...", 9],
d: [8, "...", 9]
},
default: {
a: [8, 6, "...", 7, 9],
b: [8, "...", 9],
c: [8, 6, "...", 7, 9],
d: [8, "...", 9]
}
}
}
],
"by field clone default": [
{
a: 1,
bySomething: {
x: {
b: 2
},
default: {
c: 3
}
}
},
{
bySomething: {
y: {
d: 4
}
}
},
{
a: 1,
bySomething: {
x: {
b: 2
},
y: {
c: 3,
d: 4
},
default: {
c: 3
}
}
}
],
deleting: [
base,
{
a1: DELETE,
a2: DELETE,
a3: DELETE,
a4: DELETE,
a5: DELETE,
b1: DELETE,
b2: DELETE,
b3: DELETE
},
{
a1: DELETE,
a2: DELETE,
a3: DELETE,
a4: DELETE,
a5: DELETE,
b1: DELETE,
b2: DELETE,
b3: DELETE,
bySomething: {
x: {
b4: [5],
b5: [5, "...", 6]
}
}
}
],
"merge objects": [
{
nested: base
},
{
nested: base
},
{
nested: {
a1: [1],
a2: [1],
a3: [1],
b1: [1, 1, "...", 2, 2],
b2: [1, 1, "...", 2, 2],
b3: [1, "...", 2],
bySomething: {
x: {
a2: [5],
a3: [5, "...", 6],
a4: [5],
a5: [5, 5, "...", 6, 6],
b2: [5],
b3: [5, 1, 5, "...", 6, 2, 6],
b4: [5],
b5: [5, 5, "...", 6, 6]
},
default: {
b3: [1, "...", 2]
}
}
}
}
allow function in byProperty configurations
2021-01-05 18:29:54 +08:00
],
dynamicSecond: [
{
a: 4, // keep
b: 5, // static override
c: 6 // dynamic override
},
{
b: 50,
y: 20,
byArguments: (x, y, z) => ({
c: 60,
x,
y,
z
})
},
{
a: 4,
b: 50,
c: 60,
x: 1,
y: 2,
z: 3
}
],
dynamicBoth: [
{
a: 4, // keep
b: 5, // static override
c: 6, // dynamic override
byArguments: (x, y, z) => ({
x, // keep
y, // static override
z // dynamic override
})
},
{
b: 50,
y: 20,
byArguments: (x, y, z) => ({
c: 60,
z: z * 10
})
},
{
a: 4,
b: 50,
c: 60,
x: 1,
y: 20,
z: 30
}
],
dynamicChained: [
cleverMerge(
{
a: 6, // keep
b: 7, // static override
c: 8, // dynamic override
d: 9, // static override (3rd)
e: 10, // dynamic override (3rd)
byArguments: (x, y, z, v, w) => ({
x, // keep
y, // static override
z, // dynamic override
v, // static override (3rd)
w // dynamic override (3rd)
})
},
{
b: 70,
y: 20,
byArguments: (x, y, z) => ({
c: 80,
z: z * 10
})
}
),
{
d: 90,
v: 40,
byArguments: (x, y, z, v, w) => ({
e: 100,
w: w * 10
})
},
{
a: 6,
b: 70,
c: 80,
d: 90,
e: 100,
x: 1,
y: 20,
z: 30,
v: 40,
w: 50
}
],
dynamicFalse1: [
{
a: 1,
byArguments: () => false
},
{
b: 2
},
false
],
dynamicFalse2: [
{
a: 1
},
{
b: 2,
byArguments: () => false
},
false
],
dynamicFalse3: [
{
a: 1,
byArguments: () => false
},
{
b: 2,
byArguments: () => false
},
false
improve handling of non-object values in clever merge improve caching
2021-01-06 17:51:44 +08:00
],
nonObject1: [1, 2, 2],
nonObject2: [1, { a: 1 }, 1],
nonObject3: [{ a: 1 }, 1, 1],
nonObject4: [{ a: 1 }, undefined, { a: 1 }],
nonObject5: [undefined, { a: 1 }, { a: 1 }]
Improve cleverMerge to respect byDependency order correctly Allow to use "..." in `option.resolve` too Add "..." to schema when needed Apply dependency specific mainFields, aliasFields and conditionNames only for cjs and esm dependencies or when none is specified for backward-compat.
2020-07-11 16:30:18 +08:00
};
for (const key of Object.keys(cases)) {
const testCase = cases[key];
refactor: use `eslint-config-webpack` (#19645)
2025-07-02 20:10:54 +08:00
Improve cleverMerge to respect byDependency order correctly Allow to use "..." in `option.resolve` too Add "..." to schema when needed Apply dependency specific mainFields, aliasFields and conditionNames only for cjs and esm dependencies or when none is specified for backward-compat.
2020-07-11 16:30:18 +08:00
it(`should merge ${key} correctly`, () => {
allow function in byProperty configurations
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let merged = cleverMerge(testCase[0], testCase[1]);
improve handling of non-object values in clever merge improve caching
2021-01-06 17:51:44 +08:00
let merged1 = cachedCleverMerge(testCase[0], testCase[1]);
let merged2 = cachedCleverMerge(testCase[0], testCase[1]);
expect(merged2).toBe(merged1);
allow function in byProperty configurations
2021-01-05 18:29:54 +08:00
merged = resolveByProperty(merged, "byArguments", 1, 2, 3, 4, 5);
improve handling of non-object values in clever merge improve caching
2021-01-06 17:51:44 +08:00
merged1 = resolveByProperty(merged1, "byArguments", 1, 2, 3, 4, 5);
merged2 = resolveByProperty(merged2, "byArguments", 1, 2, 3, 4, 5);
allow function in byProperty configurations
2021-01-05 18:29:54 +08:00
expect(merged).toEqual(testCase[2]);
improve handling of non-object values in clever merge improve caching
2021-01-06 17:51:44 +08:00
expect(merged1).toEqual(testCase[2]);
expect(merged2).toEqual(testCase[2]);
Improve cleverMerge to respect byDependency order correctly Allow to use "..." in `option.resolve` too Add "..." to schema when needed Apply dependency specific mainFields, aliasFields and conditionNames only for cjs and esm dependencies or when none is specified for backward-compat.
2020-07-11 16:30:18 +08:00
});
}
it("should allow to remove operations", () => {
expect(
removeOperations({
a: 1,
b: DELETE,
c: ["..."],
d: [1, "...", 2],
e: [1, 2, 3],
f: {
a: 1,
b: DELETE,
c: ["..."],
d: [1, "...", 2],
e: [1, 2, 3],
f: {
a: 1,
b: DELETE,
c: ["..."],
d: [1, "...", 2],
e: [1, 2, 3]
}
}
})
).toEqual({
a: 1,
c: [],
d: [1, 2],
e: [1, 2, 3],
f: {
a: 1,
c: [],
d: [1, 2],
e: [1, 2, 3],
f: {
a: 1,
c: [],
d: [1, 2],
e: [1, 2, 3]
}
}
});
});
});