Add custom floats formatting to prevent scientific notation

2022-05-18 22:29:31 +02:00
parent 4a2e8d0a69
commit 8c971cd11e
6 changed files with 164 additions and 27 deletions
--- a/Source/Tools/FlaxEngine.Tests/TestEditorUtils.cs
+++ b/Source/Tools/FlaxEngine.Tests/TestEditorUtils.cs
@@ -0,0 +1,60 @@
+// Copyright (c) 2012-2022 Wojciech Figat. All rights reserved.
+
+using NUnit.Framework;
+
+namespace FlaxEngine.Tests
+{
+    /// <summary>
+    /// Tests for <see cref="FlaxEditor.Utilities.Utils"/>.
+    /// </summary>
+    [TestFixture]
+    public class TestEditorUtils
+    {
+        /// <summary>
+        /// Test floating point values formatting to readable text.
+        /// </summary>
+        [Test]
+        public void TestFormatFloat()
+        {
+            Assert.AreEqual("0", FlaxEditor.Utilities.Utils.FormatFloat(0.0f));
+            Assert.AreEqual("0", FlaxEditor.Utilities.Utils.FormatFloat(0.0d));
+            Assert.AreEqual("0.1234", FlaxEditor.Utilities.Utils.FormatFloat(0.1234f));
+            Assert.AreEqual("0.1234", FlaxEditor.Utilities.Utils.FormatFloat(0.1234d));
+            Assert.AreEqual("1234", FlaxEditor.Utilities.Utils.FormatFloat(1234.0f));
+            Assert.AreEqual("1234", FlaxEditor.Utilities.Utils.FormatFloat(1234.0d));
+            Assert.AreEqual("1234.123", FlaxEditor.Utilities.Utils.FormatFloat(1234.123f));
+            Assert.AreEqual("1234.1234", FlaxEditor.Utilities.Utils.FormatFloat(1234.1234d));
+
+            double[] values =
+            {
+                123450000000000000.0, 1.0 / 7, 10000000000.0 / 7, 100000000000000000.0 / 7, 0.001 / 7, 0.0001 / 7, 100000000000000000.0, 0.00000000001,
+                1.23e-2, 1.234e-5, 1.2345E-10, 1.23456E-20, 5E-20, 1.23E+2, 1.234e5, 1.2345E10, -7.576E-05, 1.23456e20, 5e+20, 9.1093822E-31, 5.9736e24,
+                double.Epsilon, Mathd.Epsilon, Mathf.Epsilon
+            };
+            foreach (int sign in new[] { 1, -1 })
+            {
+                foreach (double value in values)
+                {
+                    double value1 = sign * value;
+                    string text = FlaxEditor.Utilities.Utils.FormatFloat(value1);
+                    Assert.IsFalse(text.Contains("e"));
+                    Assert.IsFalse(text.Contains("E"));
+                    double value2 = double.Parse(text);
+                    Assert.AreEqual(value2, value1);
+                }
+            }
+            foreach (int sign in new[] { 1, -1 })
+            {
+                foreach (double value in values)
+                {
+                    float value1 = (float)(sign * value);
+                    string text = FlaxEditor.Utilities.Utils.FormatFloat(value1);
+                    Assert.IsFalse(text.Contains("e"));
+                    Assert.IsFalse(text.Contains("E"));
+                    float value2 = float.Parse(text);
+                    Assert.AreEqual(value2, value1);
+                }
+            }
+        }
+    }
+}