unleash-server
Version:
Unleash is an enterprise ready feature flag service. It provides different strategies for handling feature flags.
203 lines • 7.05 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
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return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
const unleash_client_1 = require("unleash-client");
const experimental_1 = require("../types/experimental");
const flag_resolver_1 = __importStar(require("./flag-resolver"));
const variant_1 = require("unleash-client/lib/variant");
test('should produce empty exposed flags', () => {
const resolver = new flag_resolver_1.default(experimental_1.defaultExperimentalOptions);
const result = resolver.getAll();
expect(result.anonymiseEventLog).toBe(false);
});
test('should produce UI flags with extra dynamic flags', () => {
const config = {
...experimental_1.defaultExperimentalOptions,
flags: { extraFlag: false },
};
const resolver = new flag_resolver_1.default(config);
const result = resolver.getAll();
expect(result.extraFlag).toBe(false);
});
test('should use external resolver for dynamic flags', () => {
const externalResolver = {
isEnabled: (name) => {
if (name === 'extraFlag') {
return true;
}
},
getVariant: () => (0, variant_1.getDefaultVariant)(),
};
const config = {
flags: { extraFlag: false },
externalResolver,
};
const resolver = new flag_resolver_1.default(config);
const result = resolver.getAll();
expect(result.extraFlag).toBe(true);
});
test('should not use external resolver for enabled experiments', () => {
const externalResolver = {
isEnabled: () => {
return false;
},
getVariant: () => (0, variant_1.getDefaultVariant)(),
};
const config = {
flags: { should_be_enabled: true, extraFlag: false },
externalResolver,
};
const resolver = new flag_resolver_1.default(config);
const result = resolver.getAll();
expect(result.should_be_enabled).toBe(true);
});
test('should load experimental flags', () => {
const externalResolver = {
isEnabled: () => {
return false;
},
getVariant: () => (0, variant_1.getDefaultVariant)(),
};
const config = {
flags: { extraFlag: false, someFlag: true },
externalResolver,
};
const resolver = new flag_resolver_1.default(config);
expect(resolver.isEnabled('someFlag')).toBe(true);
expect(resolver.isEnabled('extraFlag')).toBe(false);
});
test('should load experimental flags from external provider', () => {
const externalResolver = {
isEnabled: (name) => {
if (name === 'extraFlag') {
return true;
}
},
getVariant: () => (0, variant_1.getDefaultVariant)(),
};
const config = {
flags: { extraFlag: false, someFlag: true },
externalResolver,
};
const resolver = new flag_resolver_1.default(config);
expect(resolver.isEnabled('someFlag')).toBe(true);
expect(resolver.isEnabled('extraFlag')).toBe(true);
});
test('should support variant flags', () => {
const variant = {
enabled: true,
name: 'variant',
payload: {
type: unleash_client_1.PayloadType.STRING,
value: 'variant-A',
},
};
const externalResolver = {
isEnabled: () => true,
getVariant: (name) => {
if (name === 'extraFlag') {
return variant;
}
return (0, variant_1.getDefaultVariant)();
},
};
const config = {
flags: { extraFlag: undefined, someFlag: true, otherflag: false },
externalResolver,
};
const resolver = new flag_resolver_1.default(config);
expect(resolver.getVariant('someFlag')).toStrictEqual((0, variant_1.getDefaultVariant)());
expect(resolver.getVariant('otherFlag')).toStrictEqual((0, variant_1.getDefaultVariant)());
expect(resolver.getVariant('extraFlag')).toStrictEqual(variant);
});
test('should expose an helper to get variant value', () => {
expect((0, flag_resolver_1.getVariantValue)({
enabled: true,
name: 'variant-A',
})).toBe('variant-A');
expect((0, flag_resolver_1.getVariantValue)({
enabled: true,
name: 'variant',
payload: {
type: unleash_client_1.PayloadType.STRING,
value: 'variant-B',
},
})).toBe('variant-B');
expect((0, flag_resolver_1.getVariantValue)({
enabled: true,
name: 'variant',
payload: {
type: unleash_client_1.PayloadType.JSON,
value: `{"foo": "bar"}`,
},
})).toStrictEqual({
foo: 'bar',
});
});
test('should call external resolver getVariant when not overridden to be true, even if set as object in experimental', () => {
const variant = {
enabled: true,
name: 'variant',
payload: {
type: unleash_client_1.PayloadType.STRING,
value: 'variant-A',
},
};
const externalResolver = {
isEnabled: () => true,
getVariant: (name) => {
if (name === 'variantFlag') {
return variant;
}
return (0, variant_1.getDefaultVariant)();
},
};
const config = {
flags: {
variantFlag: {
name: 'variant-flag',
enabled: false,
payload: {
type: unleash_client_1.PayloadType.JSON,
value: '',
},
},
},
externalResolver,
};
const resolver = new flag_resolver_1.default(config);
expect(resolver.getVariant('variantFlag')).toStrictEqual(variant);
});
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