fix(trim): Fixed boolean option condition and add tests

projects/ngx-translate-cut/src/lib/ngx-translate-cut.options.factory.spec.ts

@@ -0,0 +1,29 @@
+import { SEPARATOR } from './ngx-translate-cut.constants';
+import { ngxTranslateCutOptionsFactory } from './ngx-translate-cut.options.factory';
+import { NgxTranslateCutOptions } from './ngx-translate-cut.options.interface';
+import { NgxTranslateCutOptionsService } from './ngx-translate-cut.options.service';
+
+describe('ngxTranslateCutOptionsFactory', () => {
+  let factory: (options?: NgxTranslateCutOptions) => NgxTranslateCutOptionsService;
+
+  beforeEach(() => {
+    factory = ngxTranslateCutOptionsFactory;
+  });
+
+  it('should be created with default options', () => {
+    const result = factory();
+
+    expect(result.separator).toEqual(SEPARATOR);
+    expect(result.trim).toEqual(true);
+  });
+
+  it('should be created with custom options', () => {
+    const result = factory({
+      separator: '*',
+      trim: false,
+    });
+
+    expect(result.separator).toEqual('*');
+    expect(result.trim).toEqual(false);
+  });
+});

projects/ngx-translate-cut/src/lib/ngx-translate-cut.options.factory.ts

@@ -10,7 +10,7 @@ export const ngxTranslateCutOptionsFactory = (
     if (options.separator) {
       ngxTranslateCutOptionsService.separator = options.separator;
     }
-    if (options.trim) {
+    if (options.trim !== undefined) {
       ngxTranslateCutOptionsService.trim = options.trim;
     }
   }

projects/ngx-translate-cut/src/lib/ngx-translate-cut.pipe.spec.ts

@@ -50,4 +50,32 @@ describe('NgxTranslateCutPipe', () => {
     expect(pipe.transform(null, 0))
       .toEqual('');
   });
+
+  describe('Separator', () => {
+    const dataWithCustomSeparator = 'first * second * last';
+
+    it('Should use custom separator', () => {
+      options.separator = '*';
+
+      expect(pipe.transform(dataWithCustomSeparator, 0))
+        .toEqual('first');
+      expect(pipe.transform(dataWithCustomSeparator, 1))
+        .toEqual('second');
+      expect(pipe.transform(dataWithCustomSeparator, 2))
+        .toEqual('last');
+    });
+  });
+
+  describe('Trim', () => {
+    it('Should omit trim', () => {
+      options.trim = false;
+
+      expect(pipe.transform(data, 0))
+        .toEqual('first ');
+      expect(pipe.transform(data, 1))
+        .toEqual(' second ');
+      expect(pipe.transform(data, 2))
+        .toEqual(' last');
+    });
+  });
 });