Fix #324 - duplicate log in Remous

add e2e spec

e2e/remous.e2e-spec.ts

+import { AppPage } from "./app.po";
+import { ListPage } from "./list.po";
+import { CalculatorPage } from "./calculator.po";
+import { browser } from "protractor";
+import { Navbar } from "./navbar.po";
+
+/**
+ * Remous
+ */
+describe("ngHyd − remous", () => {
+  let startPage: AppPage;
+  let listPage: ListPage;
+  let calcPage: CalculatorPage;
+  let navBar: Navbar;
+
+  beforeEach(() => {
+    startPage = new AppPage();
+    listPage = new ListPage();
+    calcPage = new CalculatorPage();
+    navBar = new Navbar();
+  });
+
+  it("when leaving calculated remous page then coming back to it, logs should not be duplicated", async () => {
+    await startPage.navigateTo();
+
+    // 1. create new Remous
+    await listPage.clickMenuEntryForCalcType(4);
+    await browser.sleep(300);
+
+    // 2. calculate it, there should be 6 messages in the log
+    await calcPage.getCalculateButton().click();
+    expect(await calcPage.nbLogEntries()).toBe(6);
+    await browser.sleep(300);
+
+    // 3. go to home page (simplest example)
+    await navBar.clickNewCalculatorButton();
+    await browser.sleep(300);
+
+    // 4. go back to Remous
+    await navBar.clickCalculatorTab(0);
+    await browser.sleep(300);
+
+    // 5. there should still be 6 messages in the log
+    expect(await calcPage.nbLogEntries()).toBe(6);
+  });
+});

src/app/results/remous-results.ts

@@ -101,7 +101,7 @@ export class RemousResults extends CalculatorResults {
         this._xValues.setValues(0, Long, Dx);
     }
 
-    public get log() {
+    public get log(): cLog {
         return this._log;
     }
 
@@ -134,6 +134,7 @@ export class RemousResults extends CalculatorResults {
             }
         }
 
+        this._log.clear();
         this._log.addLog(this._result.globalLog);
 
         this._varResults = new VarResults();