forked from mirrors/gecko-dev
59 lines
2.4 KiB
JavaScript
59 lines
2.4 KiB
JavaScript
"use strict";
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var diff = require("../diff")
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exports["test diff from null"] = function(assert) {
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var to = { a: 1, b: 2 }
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assert.equal(diff(null, to), to, "diff null to x returns x")
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assert.equal(diff(void(0), to), to, "diff undefined to x returns x")
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}
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exports["test diff to null"] = function(assert) {
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var from = { a: 1, b: 2 }
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assert.deepEqual(diff({ a: 1, b: 2 }, null),
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{ a: null, b: null },
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"diff x null returns x with all properties nullified")
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}
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exports["test diff identical"] = function(assert) {
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assert.deepEqual(diff({}, {}), {}, "diff on empty objects is {}")
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assert.deepEqual(diff({ a: 1, b: 2 }, { a: 1, b: 2 }), {},
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"if properties match diff is {}")
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assert.deepEqual(diff({ a: 1, b: { c: { d: 3, e: 4 } } },
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{ a: 1, b: { c: { d: 3, e: 4 } } }), {},
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"diff between identical nested hashes is {}")
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}
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exports["test diff delete"] = function(assert) {
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assert.deepEqual(diff({ a: 1, b: 2 }, { b: 2 }), { a: null },
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"missing property is deleted")
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assert.deepEqual(diff({ a: 1, b: 2 }, { a: 2 }), { a: 2, b: null },
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"missing property is deleted another updated")
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assert.deepEqual(diff({ a: 1, b: 2 }, {}), { a: null, b: null },
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"missing propertes are deleted")
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assert.deepEqual(diff({ a: 1, b: { c: { d: 2 } } }, {}),
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{ a: null, b: null },
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"missing deep propertes are deleted")
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assert.deepEqual(diff({ a: 1, b: { c: { d: 2 } } }, { b: { c: {} } }),
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{ a: null, b: { c: { d: null } } },
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"missing nested propertes are deleted")
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}
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exports["test add update"] = function(assert) {
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assert.deepEqual(diff({ a: 1, b: 2 }, { b: 2, c: 3 }), { a: null, c: 3 },
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"delete and add")
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assert.deepEqual(diff({ a: 1, b: 2 }, { a: 2, c: 3 }), { a: 2, b: null, c: 3 },
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"delete and adds")
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assert.deepEqual(diff({}, { a: 1, b: 2 }), { a: 1, b: 2 },
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"diff on empty objcet returns equivalen of to")
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assert.deepEqual(diff({ a: 1, b: { c: { d: 2 } } }, { d: 3 }),
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{ a: null, b: null, d: 3 },
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"missing deep propertes are deleted")
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assert.deepEqual(diff({ b: { c: {} }, d: null }, { a: 1, b: { c: { d: 2 } } }),
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{ a: 1, b: { c: { d: 2 } } },
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"missing nested propertes are deleted")
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}
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