Added unit tests for DBConnetionTab module

Change-Id: I122b726bec4f8cd631ccdf244f0529f28fd93623

Author: mbodzek

MySQLShellPluginDevelopment.code-workspace

@@ -1,3 +1,4 @@
+// cSpell:ignore dbaeumer pylance antlr4 debugpy orta
 {
     "folders": [
         {
@@ -47,7 +48,7 @@
             "${workspaceFolder}\\plugins\\rds_plugin"
         ],
         "liveServer.settings.multiRootWorkspaceName": "MySQL REST Service Plugin",
-        "jest.autoRun": "off",
+        "jest.runMode": "on-demand",
         "jest.disabledWorkspaceFolders": [
             "MySQL REST Service Plugin",
             "Shell GUI Backend",
@@ -71,7 +72,7 @@
         "configurations": [
             {
                 "name": "Python: Attach to Port",
-                "type": "python",
+                "type": "debugpy",
                 "request": "attach",
                 "connect": {
                     "host": "localhost",
@@ -80,7 +81,7 @@
             },
             {
                 "name": "Python: Attach using Process Id",
-                "type": "python",
+                "type": "debugpy",
                 "request": "attach",
                 "processId": "${command:pickProcess}"
             }
@@ -91,7 +92,6 @@
         "tasks": []
     },
     "extensions": {
-        // cSpell:ignore dbaeumer pylance
         "recommendations": [
             "streetsidesoftware.code-spell-checker",
             "dbaeumer.vscode-eslint",

gui/frontend/src/modules/db-editor/DBConnectionTab.tsx

@@ -603,7 +603,7 @@ Execute \\help or \\? for help;`;
             await requisitions.execute("sqlTransactionChanged", undefined);
 
             void requisitions.execute("showInfo", "Commit successful.");
-        } catch (reason) {
+        } catch (reason) /* istanbul ignore next */ {
             const message = reason instanceof Error ? reason.message : String(reason);
             await requisitions.execute("showError", "Error while committing changes: " + message);
         }
@@ -716,7 +716,7 @@ Execute \\help or \\? for help;`;
             } else if (this.scriptRef.current) {
                 this.scriptRef.current.insertScriptText(data.language, content);
             }
-        } catch (reason) {
+        } catch (reason) /* istanbul ignore next */ {
             const message = reason instanceof ResponseError ? reason.message : String(reason);
             await requisitions.execute("showError", "Cannot load scripts content: " + message);
 
@@ -822,7 +822,7 @@ Execute \\help or \\? for help;`;
 
                     return Promise.resolve(true);
                 }
-            } else {
+            } else /* istanbul ignore next */ {
                 if (payload.contextId) {
                     this.addContextResultMessage(payload.contextId, `\nAuthentication cancelled.`);
                 }
@@ -3053,7 +3053,7 @@ Execute \\help or \\? for help;`;
 
                         void requisitions.execute("showInfo",
                             `The HeatWave options have been saved successfully to ${fileResult.path[0]}`);
-                    } catch (reason) {
+                    } catch (reason) /* istanbul ignore next */ {
                         let content: string;
 
                         if (reason instanceof ResponseError) {
@@ -3087,7 +3087,7 @@ Execute \\help or \\? for help;`;
                             void requisitions.execute("showInfo",
                                 `The HeatWave options have been loaded successfully from ${fileResult.path[0]}`);
                         }
-                    } catch (reason) {
+                    } catch (reason) /* istanbul ignore next */ {
                         let content: string;
 
                         if (reason instanceof ResponseError) {