2 files changed, 59 insertions, 0 deletions
diff --git a/vid-webpack-master/src/app/shared/components/validators/numbersLettersUnderscore/numbersLettersUnderscore.validator.spec.ts b/vid-webpack-master/src/app/shared/components/validators/numbersLettersUnderscore/numbersLettersUnderscore.validator.spec.ts
new file mode 100644
index 00000000..ec9f3f73
--- /dev/null
+++ b/vid-webpack-master/src/app/shared/components/validators/numbersLettersUnderscore/numbersLettersUnderscore.validator.spec.ts
@@ -0,0 +1,39 @@
+import { ReflectiveInjector } from '@angular/core';
+import { NumbersLettersUnderscoreValidator } from './numbersLettersUnderscore.validator';
+
+describe('Numbers letters underscore validator', () => {
+  let injector;
+  let service: NumbersLettersUnderscoreValidator;
+
+  beforeEach(() => {
+
+    let injector = ReflectiveInjector.resolveAndCreate([
+      NumbersLettersUnderscoreValidator
+    ]);
+
+    service = injector.get(NumbersLettersUnderscoreValidator);
+  });
+
+
+  describe('#valid', () => {
+    it("'legal' should return null", ()=> {
+      let legalVal: string = "legal";
+      let result = NumbersLettersUnderscoreValidator.valid(legalVal);
+      expect(result).toBeNull();
+    });
+
+    it("'illegal' should return object with invalidNumberLettersUnderscore true", ()=> {
+      let illegalVal: string = "illegal-Val";
+      let result = NumbersLettersUnderscoreValidator.valid(illegalVal);
+      expect(result.invalidNumberLettersUnderscore).toBeTruthy();
+    });
+
+    it("'null' should return null", ()=> {
+      let nullVal: string = null
+      let result = NumbersLettersUnderscoreValidator.valid(nullVal);
+      expect(result).toBeNull();
+    });
+
+
+  });
+});
diff --git a/vid-webpack-master/src/app/shared/components/validators/numbersLettersUnderscore/numbersLettersUnderscore.validator.ts b/vid-webpack-master/src/app/shared/components/validators/numbersLettersUnderscore/numbersLettersUnderscore.validator.ts
new file mode 100644
index 00000000..418bdfc4
--- /dev/null
+++ b/vid-webpack-master/src/app/shared/components/validators/numbersLettersUnderscore/numbersLettersUnderscore.validator.ts
@@ -0,0 +1,20 @@
+import { Injectable } from '@angular/core';
+import { isNullOrUndefined, isString } from 'util';
+
+@Injectable()
+export class NumbersLettersUnderscoreValidator {
+  static valid(control: any) {
+    let reg =  /^[a-zA-Z0-9_]*$/;
+
+    if(isNullOrUndefined(control)) return null;
+    let val = isString(control) ? control : control.value;
+    if (val === null) {
+      return {'invalidNumberLettersUnderscore': true};
+    }
+    if (reg.test(val)) {
+      return null;
+    } else {
+      return {'invalidNumberLettersUnderscore': true};
+    }
+  }
+}