refactor: standardizes case interface and unitifies tests

Author: moltar

cases/__snapshots__/class-validator.test.ts.snap

@@ -0,0 +1,28 @@
+import clone from 'clone'
+import { Data } from '../data'
+
+export interface ICase {
+  /**
+   * Human readable case name.
+  */
+  name: string
+
+  /**
+   * Validation implementation method.
+   *
+   * Method returns a `Data` object or throws when invalid data is provided.
+  */
+  validate(): Promise<Data> | Data
+}
+
+export abstract class Case implements ICase {
+  protected readonly data: Data
+
+  public abstract get name(): string
+
+  public constructor(data: Data) {
+    this.data = Object.freeze(clone(data))
+  }
+
+  public abstract validate(): Promise<Data> | Data
+}

cases/__snapshots__/io-ts.test.ts.snap

@@ -1,6 +1,7 @@
 import 'reflect-metadata'
 import { IsNegative, MinLength, ValidateNested } from 'class-validator'
 import { transformAndValidate, transformAndValidateSync } from 'class-transformer-validator'
+import { Case, ICase } from './abstract'
 import { Data } from '../data'
 
 type DeeplyNested = Data['deeplyNested']
@@ -29,10 +30,18 @@ class DataType implements Data {
   deeplyNested!: DeeplyNestedType
 }
 
-export function caseClassValidatorSync(data: Data) {
-  return transformAndValidateSync(DataType, data)
+export class ClassValidatorSyncCase extends Case implements ICase {
+  name = 'class-transformer-validator-sync'
+
+  validate() {
+    return transformAndValidateSync(DataType, this.data)
+  }
 }
 
-export function caseClassValidatorAsync(data: Data) {
-  return transformAndValidate(DataType, data)
-}
+export class ClassValidatorAsyncCase extends Case implements ICase {
+  name = 'class-transformer-validator-async'
+
+  validate() {
+    return transformAndValidate(DataType, this.data)
+  }
+}

cases/__snapshots__/marshal.test.ts.snap

@@ -1,7 +1,16 @@
-export * from './class-validator'
-export * from './io-ts'
-export * from './json-encode-decode'
-export * from './marshal'
-export * from './runtypes'
-export * from './toi'
-export * from './ts-json-validator'
+import { ClassValidatorAsyncCase, ClassValidatorSyncCase } from './class-validator'
+import { IoTsCase } from './io-ts'
+import { MarshalCase } from './marshal'
+import { RuntypesCase } from './runtypes'
+import { ToiCase } from './toi'
+import { TsJsonValidatorCase } from './ts-json-validator'
+
+export default [
+  ClassValidatorAsyncCase,
+  ClassValidatorSyncCase,
+  IoTsCase,
+  MarshalCase,
+  RuntypesCase,
+  ToiCase,
+  TsJsonValidatorCase
+]