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Mini Shell
Mini Shell
/**
* @filedescription Object Schema Tests
*/
/* global it, describe, beforeEach */
"use strict";
//-----------------------------------------------------------------------------
// Requirements
//-----------------------------------------------------------------------------
const assert = require("chai").assert;
const { ObjectSchema } = require("../src/");
//-----------------------------------------------------------------------------
// Class
//-----------------------------------------------------------------------------
describe("ObjectSchema", () => {
let schema;
describe("new ObjectSchema()", () => {
it("should add a new key when a strategy is passed", () => {
schema = new ObjectSchema({
foo: {
merge() {},
validate() {}
}
});
assert.isTrue(schema.hasKey("foo"));
});
it("should throw an error when a strategy is missing a merge() method", () => {
assert.throws(() => {
schema = new ObjectSchema({
foo: {
validate() { }
}
});
}, /Definition for key "foo" must have a merge property/);
});
it("should throw an error when a strategy is missing a merge() method", () => {
assert.throws(() => {
schema = new ObjectSchema();
}, /Schema definitions missing/);
});
it("should throw an error when a strategy is missing a validate() method", () => {
assert.throws(() => {
schema = new ObjectSchema({
foo: {
merge() { },
}
});
}, /Definition for key "foo" must have a validate\(\) method/);
});
it("should throw an error when merge is an invalid string", () => {
assert.throws(() => {
new ObjectSchema({
foo: {
merge: "bar",
validate() { }
}
});
}, /key "foo" missing valid merge strategy/);
});
it("should throw an error when validate is an invalid string", () => {
assert.throws(() => {
new ObjectSchema({
foo: {
merge: "assign",
validate: "s"
}
});
}, /key "foo" missing valid validation strategy/);
});
});
describe("merge()", () => {
it("should throw an error when an unexpected key is found", () => {
let schema = new ObjectSchema({});
assert.throws(() => {
schema.merge({ foo: true }, { foo: true });
}, /Unexpected key "foo"/);
});
it("should throw an error when merge() throws an error", () => {
let schema = new ObjectSchema({
foo: {
merge() {
throw new Error("Boom!");
},
validate() {}
}
});
assert.throws(() => {
schema.merge({ foo: true }, { foo: true });
}, /Key "foo": Boom!/);
});
it("should call the merge() strategy for one key when called", () => {
schema = new ObjectSchema({
foo: {
merge() {
return "bar";
},
validate() {}
}
});
const result = schema.merge({ foo: true }, { foo: false });
assert.propertyVal(result, "foo", "bar");
});
it("should not call the merge() strategy when both objects don't contain the key", () => {
let called = false;
schema = new ObjectSchema({
foo: {
merge() {
called = true;
},
validate() {}
}
});
schema.merge({}, {});
assert.isFalse(called, "The merge() strategy should not have been called.");
});
it("should omit returning the key when the merge() strategy returns undefined", () => {
schema = new ObjectSchema({
foo: {
merge() {
return undefined;
},
validate() { }
}
});
const result = schema.merge({ foo: true }, { foo: false });
assert.notProperty(result, "foo");
});
it("should call the merge() strategy for two keys when called", () => {
schema = new ObjectSchema({
foo: {
merge() {
return "bar";
},
validate() { }
},
bar: {
merge() {
return "baz";
},
validate() {}
}
});
const result = schema.merge({ foo: true, bar: 1 }, { foo: true, bar: 2 });
assert.propertyVal(result, "foo", "bar");
assert.propertyVal(result, "bar", "baz");
});
it("should call the merge() strategy for two keys when called on three objects", () => {
schema = new ObjectSchema({
foo: {
merge() {
return "bar";
},
validate() { }
},
bar: {
merge() {
return "baz";
},
validate() { }
}
});
const result = schema.merge(
{ foo: true, bar: 1 },
{ foo: true, bar: 3 },
{ foo: false, bar: 2 }
);
assert.propertyVal(result, "foo", "bar");
assert.propertyVal(result, "bar", "baz");
});
it("should call the merge() strategy when defined as 'overwrite'", () => {
schema = new ObjectSchema({
foo: {
merge: "overwrite",
validate() { }
}
});
const result = schema.merge(
{ foo: true },
{ foo: false }
);
assert.propertyVal(result, "foo", false);
});
it("should call the merge() strategy when defined as 'assign'", () => {
schema = new ObjectSchema({
foo: {
merge: "assign",
validate() { }
}
});
const result = schema.merge(
{ foo: { bar: true } },
{ foo: { baz: false } }
);
assert.strictEqual(result.foo.bar, true);
assert.strictEqual(result.foo.baz, false);
});
it("should call the merge strategy when there's a subschema", () => {
schema = new ObjectSchema({
name: {
schema: {
first: {
merge: "replace",
validate: "string"
},
last: {
merge: "replace",
validate: "string"
}
}
}
});
const result = schema.merge({
name: {
first: "n",
last: "z"
}
}, {
name: {
first: "g"
}
});
assert.strictEqual(result.name.first, "g");
assert.strictEqual(result.name.last, "z");
});
it("should return separate objects when using subschema", () => {
schema = new ObjectSchema({
age: {
merge: "replace",
validate: "number"
},
address: {
schema: {
street: {
schema: {
number: {
merge: "replace",
validate: "number"
},
streetName: {
merge: "replace",
validate: "string"
}
}
},
state: {
merge: "replace",
validate: "string"
}
}
}
});
const baseObject = {
address: {
street: {
number: 100,
streetName: "Foo St"
},
state: "HA"
}
};
const result = schema.merge(baseObject, {
age: 29
});
assert.notStrictEqual(result.address.street, baseObject.address.street);
assert.deepStrictEqual(result.address, baseObject.address);
});
it("should not error when calling the merge strategy when there's a subschema and no matching key in second object", () => {
schema = new ObjectSchema({
name: {
schema: {
first: {
merge: "replace",
validate: "string"
},
last: {
merge: "replace",
validate: "string"
}
}
}
});
const result = schema.merge({
name: {
first: "n",
last: "z"
}
}, {
});
assert.strictEqual(result.name.first, "n");
assert.strictEqual(result.name.last, "z");
});
it("should not error when calling the merge strategy when there's multiple subschemas and no matching key in second object", () => {
schema = new ObjectSchema({
user: {
schema: {
name: {
schema: {
first: {
merge: "replace",
validate: "string"
},
last: {
merge: "replace",
validate: "string"
}
}
}
}
}
});
const result = schema.merge({
user: {
name: {
first: "n",
last: "z"
}
}
}, {
});
assert.strictEqual(result.user.name.first, "n");
assert.strictEqual(result.user.name.last, "z");
});
});
describe("validate()", () => {
it("should throw an error when an unexpected key is found", () => {
let schema = new ObjectSchema({});
assert.throws(() => {
schema.validate({ foo: true });
}, /Unexpected key "foo"/);
});
it("should not throw an error when an expected key is found", () => {
schema = new ObjectSchema({
foo: {
merge() {
return "bar";
},
validate() {}
}
});
schema.validate({ foo: true });
});
it("should pass the property value into validate() when key is found", () => {
schema = new ObjectSchema({
foo: {
merge() {
return "bar";
},
validate(value) {
assert.isTrue(value);
}
}
});
schema.validate({ foo: true });
});
it("should not throw an error when expected keys are found", () => {
schema = new ObjectSchema({
foo: {
merge() {
return "bar";
},
validate() {}
},
bar: {
merge() {
return "baz";
},
validate() {}
}
});
schema.validate({ foo: true, bar: true });
});
it("should not throw an error when expected keys are found with required keys", () => {
schema = new ObjectSchema({
foo: {
merge() {
return "bar";
},
validate() { }
},
bar: {
requires: ["foo"],
merge() {
return "baz";
},
validate() { }
}
});
schema.validate({ foo: true, bar: true });
});
it("should throw an error when expected keys are found without required keys", () => {
schema = new ObjectSchema({
foo: {
merge() {
return "bar";
},
validate() { }
},
baz: {
merge() {
return "baz";
},
validate() { }
},
bar: {
name: "bar",
requires: ["foo", "baz"],
merge() { },
validate() { }
}
});
assert.throws(() => {
schema.validate({ bar: true });
}, /Key "bar" requires keys "foo", "baz"./);
});
it("should throw an error when an expected key is found but is invalid", () => {
schema = new ObjectSchema({
foo: {
merge() {
return "bar";
},
validate() {
throw new Error("Invalid key.");
}
}
});
assert.throws(() => {
schema.validate({ foo: true });
}, /Key "foo": Invalid key/);
});
it("should throw an error when an expected key is found but is invalid with a string validator", () => {
schema = new ObjectSchema({
foo: {
merge() {
return "bar";
},
validate: "string"
}
});
assert.throws(() => {
schema.validate({ foo: true });
}, /Key "foo": Expected a string/);
});
it("should throw an error when an expected key is found but is invalid with a number validator", () => {
schema = new ObjectSchema({
foo: {
merge() {
return "bar";
},
validate: "number"
}
});
assert.throws(() => {
schema.validate({ foo: true });
}, /Key "foo": Expected a number/);
});
it("should throw an error when a required key is missing", () => {
schema = new ObjectSchema({
foo: {
required: true,
merge() {
return "bar";
},
validate() {}
}
});
assert.throws(() => {
schema.validate({});
}, /Missing required key "foo"/);
});
it("should throw an error when a subschema is provided and the value doesn't validate", () => {
schema = new ObjectSchema({
name: {
schema: {
first: {
merge: "replace",
validate: "string"
},
last: {
merge: "replace",
validate: "string"
}
}
}
});
assert.throws(() => {
schema.validate({
name: {
first: 123,
last: "z"
}
});
}, /Key "name": Key "first": Expected a string/);
});
it("should not throw an error when a subschema is provided and the value validates", () => {
schema = new ObjectSchema({
name: {
schema: {
first: {
merge: "replace",
validate: "string"
},
last: {
merge: "replace",
validate: "string"
}
}
}
});
schema.validate({
name: {
first: "n",
last: "z"
}
});
});
});
});
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