triangle: simplify generator

Author: ErikSchierboom

exercises/practice/triangle/.meta/Generator.tpl

@@ -2,27 +2,11 @@ using Xunit;
 
 public class TriangleTests
 {
-    {{for testCase in testCasesByProperty.equilateral}}
+    {{for testCase in testCases}}
     [Fact{{if !for.first}}(Skip = "Remove this Skip property to run this test"){{end}}]
     public void {{testCase.testMethodName}}()
     {
-        Assert.{{testCase.expected ? "True" : "False"}}(Triangle.IsEquilateral({{testCase.input.sides | array.join ", "}}));
-    }
-    {{end}}
-
-    {{for testCase in testCasesByProperty.isosceles}}
-    [Fact(Skip = "Remove this Skip property to run this test")]
-    public void {{testCase.testMethodName}}()
-    {
-        Assert.{{testCase.expected ? "True" : "False"}}(Triangle.IsIsosceles({{testCase.input.sides | array.join ", "}}));
-    }
-    {{end}}
-
-    {{for testCase in testCasesByProperty.scalene}}
-    [Fact(Skip = "Remove this Skip property to run this test")]
-    public void {{testCase.testMethodName}}()
-    {
-        Assert.{{testCase.expected ? "True" : "False"}}(Triangle.IsScalene({{testCase.input.sides | array.join ", "}}));
+        Assert.{{testCase.expected ? "True" : "False"}}(Triangle.Is{{testCase.property | string.capitalize}}({{testCase.input.sides | array.join ", "}}));
     }
     {{end}}
 }