added first unit test

WindowsFormsApp01/WindowsFormsApp01/Form1.Designer.cs

@@ -41,6 +41,7 @@
             this.button4 = new System.Windows.Forms.Button();
             this.label4 = new System.Windows.Forms.Label();
             this.label5 = new System.Windows.Forms.Label();
+            this.button5 = new System.Windows.Forms.Button();
             ((System.ComponentModel.ISupportInitialize)(this.numericUpDown1)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.numericUpDown2)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.trackBar1)).BeginInit();
@@ -173,6 +174,16 @@
             this.label5.TabIndex = 12;
             this.label5.Text = "label5";
             // 
+            // button5
+            // 
+            this.button5.Location = new System.Drawing.Point(68, 396);
+            this.button5.Name = "button5";
+            this.button5.Size = new System.Drawing.Size(75, 23);
+            this.button5.TabIndex = 13;
+            this.button5.Text = "store";
+            this.button5.UseVisualStyleBackColor = true;
+            this.button5.Click += new System.EventHandler(this.Button5_Click);
+            // 
             // Form1
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
@@ -180,6 +191,7 @@
             this.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;
             this.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
             this.ClientSize = new System.Drawing.Size(800, 450);
+            this.Controls.Add(this.button5);
             this.Controls.Add(this.label5);
             this.Controls.Add(this.label4);
             this.Controls.Add(this.button4);
@@ -221,6 +233,7 @@
         private System.Windows.Forms.Button button4;
         private System.Windows.Forms.Label label4;
         private System.Windows.Forms.Label label5;
+        private System.Windows.Forms.Button button5;
     }
 }
 

WindowsFormsApp01/WindowsFormsApp01/Form1.cs

@@ -76,12 +76,10 @@ namespace WindowsFormsApp01
             var f = new CalcEventArgs(res);
             //trigger handler
 
-           // if (CalcFinished != null)
-          //  {
-                CalcFinished(f);
-           // }
-
-
+            // if (CalcFinished != null)
+            //  {
+            CalcFinished(f);
+            // }
         }
 
 
@@ -91,11 +89,46 @@ namespace WindowsFormsApp01
 
             Pen _pen = new ClassLibrary01.Class1().getPen();
 
+            using (var p = _pen)
+            {
+                draw(graphics);
+            }
+
+            Brush aBrush = (Brush) Brushes.Red;
+
+
+            for (int i = 10; i < (502); i++)
+            {
+                int y = (int) (246 - (((Math.Log(i) * 10) - 23) * _scale));
+
+                graphics.FillRectangle(aBrush, i, y, 2, 2);
+            }
+        }
+
+        private void storeToFile()
+        {
+            Bitmap bmp = new Bitmap(100, 200);
+
+            var graphics = Graphics.FromImage(bmp);
+
+            draw(graphics);
+
+            bmp.Save(@"C:\Temp\AI.png");
+        }
+
+        private void draw(Graphics graphics)
+        {
+            Pen _pen = new ClassLibrary01.Class1().getPen();
+
+            graphics.Clear(Color.Aqua);
+            
+
             using (var p = _pen)
             {
                 //y axis
                 graphics.DrawLine(p, 10, 10, 10, 246);
 
+
                 //x axis
                 graphics.DrawLine(p, 10, 246, 502, 246);
 
@@ -107,19 +140,6 @@ namespace WindowsFormsApp01
                 graphics.DrawLine(p, 498, 241, 502, 246);
                 graphics.DrawLine(p, 498, 251, 502, 246);
             }
-
-            Brush aBrush = (Brush) Brushes.Red;
-
-
-            for (int i = 10; i < (502); i++)
-            {
-                int y = (int) (246 - (((Math.Log(i) * 10) - 23) * _scale));
-
-                graphics.FillRectangle(aBrush, i, y, 2, 2);
-            }
-
-
-            //graphics.DrawEllipse(new Pen(Color.Black), 70, 70, 30, 10);
         }
 
         private void Form1_Load(object sender, EventArgs e)
@@ -204,11 +224,7 @@ namespace WindowsFormsApp01
             }
             catch (Exception)
             {
-
-
                 label4.Text = "Fehler";
-
-
             }
         }
 
@@ -216,6 +232,11 @@ namespace WindowsFormsApp01
         {
             label4.Text = e.Result.ToString();
         }
+
+        private void Button5_Click(object sender, EventArgs e)
+        {
+            storeToFile();
+        }
     }
 
     public class CalcEventArgs
@@ -236,9 +257,6 @@ namespace WindowsFormsApp01
         public static event CalcEventHandler CalcFinished;
 
 
-       
-
-
         public static void CalcIt()
         {
             int res = DateTime.Now.Second;