Add typings for chai-jest-snapshot

types/chai-jest-snapshot/chai-jest-snapshot-tests.ts

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+import chaiJestSnapshot from 'chai-jest-snapshot';
+import { expect } from 'chai';
+
+chai.use(chaiJestSnapshot);
+
+expect({}).to.matchSnapshot();
+expect({}).to.matchSnapshot(true);
+expect({}).to.matchSnapshot("filename");
+expect({}).to.matchSnapshot("filename", "snapshotname");
+expect({}).to.matchSnapshot("filename", "snapshotname", false);
+
+const mockContext: Mocha.IBeforeAndAfterContext = <any> {
+    currentTest: {
+       file: 'testfile',
+       fullTitle: () => 'fullTitle'
+    }
+};
+
+chaiJestSnapshot.setFileName("filename");
+chaiJestSnapshot.setTestName("testname");
+chaiJestSnapshot.configureUsingMochaContext(mockContext);
+chaiJestSnapshot.resetSnapshotRegistry();
+chaiJestSnapshot.addSerializer({});

types/chai-jest-snapshot/index.d.ts

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+// Type definitions for chai-jest-snapshot 1.3
+// Project: https://github.com/suchipi/chai-jest-snapshot#readme
+// Definitions by: Matt Perry <https://github.com/mattvperry>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/// <reference types="chai" />
+/// <reference types="mocha" />
+
+declare global {
+    namespace Chai {
+        interface Assertion {
+            /**
+             * Assert that the object matches the snapshot
+             * @param snapshotFilename
+             * @param snapshotName
+             * @param update
+             */
+            matchSnapshot(snapshotFilename?: string, snapshotName?: string, update?: boolean): Assertion;
+            matchSnapshot(update: boolean): Assertion;
+        }
+    }
+}
+
+interface ChaiJestSnapshot {
+    /**
+     * Chai bootstrapper
+     * @param chai
+     * @param utils
+     */
+    (chai: any, utils: any): void;
+
+    /**
+     * Set snapshot file name
+     * @param filename
+     */
+    setFileName(filename: string): void;
+
+    /**
+     * Set snapshot test name
+     * @param testname
+     */
+    setTestName(testname: string): void;
+
+    /**
+     * Configure snapshot name using mocha context
+     * @param context
+     */
+    configureUsingMochaContext(context: Mocha.IBeforeAndAfterContext): void;
+
+    /**
+     * Reset snapshot registry
+     */
+    resetSnapshotRegistry(): void;
+
+    /**
+     * Add a serializer plugin
+     * @param serializer
+     */
+    addSerializer(serializer: any): void;
+}
+
+declare var ChaiJestSnapshot: ChaiJestSnapshot;
+export default ChaiJestSnapshot;

types/chai-jest-snapshot/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "chai-jest-snapshot-tests.ts"
+    ]
+}

types/chai-jest-snapshot/tslint.json

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+{ "extends": "dtslint/dt.json" }