38 lines
1.3 KiB
TypeScript
38 lines
1.3 KiB
TypeScript
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// Reflect.metadata ( metadataKey, metadataValue )
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// - https://github.com/jonathandturner/decorators/blob/master/specs/metadata.md#reflectmetadata--metadatakey-metadatavalue-
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import "../../Reflect";
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import * as assert from "assert";
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export function ReflectMetadataReturnsDecoratorFunction() {
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let result = Reflect.metadata("key", "value");
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assert.equal(typeof result, "function");
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}
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export function ReflectMetadataDecoratorThrowsWithInvalidTargetWithTargetKey() {
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let decorator = Reflect.metadata("key", "value");
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assert.throws(() => decorator(undefined, "name"), TypeError);
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}
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export function ReflectMetadataDecoratorThrowsWithInvalidTargetWithoutTargetKey() {
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let decorator = Reflect.metadata("key", "value");
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assert.throws(() => decorator({}, undefined), TypeError);
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}
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export function ReflectMetadataDecoratorSetsMetadataOnTargetWithoutTargetKey() {
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let decorator = Reflect.metadata("key", "value");
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let target = function () {}
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decorator(target);
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let result = Reflect.hasOwnMetadata("key", target, undefined);
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assert.equal(result, true);
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}
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export function ReflectMetadataDecoratorSetsMetadataOnTargetWithTargetKey() {
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let decorator = Reflect.metadata("key", "value");
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let target = {}
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decorator(target, "name");
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let result = Reflect.hasOwnMetadata("key", target, "name");
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assert.equal(result, true);
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}
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