请为以下程序段设计测试用例集，要求满足条件组合覆盖 ‎ ‎public class Triangle { ‎ ‎ protected long lborderA = 0; ‎ ‎ protected long lborderB = 0; ‎ ‎ protected long lborderC = 0; ‎ ‎ // Constructor ‎ ‎ public Triangle(long lborderA, long lborderB, long lborderC) { ‎ ‎ this.lborderA = lborderA; ‎ ‎ this.lborderB = lborderB; ‎ ‎ this.lborderC = lborderC; } ‎ ‎ ‎ ‎ public boolean isTriangle(Triangle triangle) { ‎ ‎ boolean isTriangle = false; ‎ ‎ ‎ ‎ // check boundary ‎ ‎ if (triangle.lborderA > 0 && triangle.lborderB > 0 && triangle.lborderC > 0 ) ‎ ‎ // check if subtraction of two border larger than the third ‎ ‎ if ((triangle.lborderA-triangle.lborderB) < triangle.lborderC ‎ ‎ && (triangle.lborderB-triangle.lborderC) < triangle.lborderA ‎ ‎ && (triangle.lborderC-triangle.lborderA) < triangle.lborderB) ‎ ‎ {isTriangle = true; } ‎ ‎ return isTriangle; ‎ ‎ } ‎ ‎}

&& triangle.lborderB > 0
&& triangle.lborderC > 0
&& triangle.lborderA + triangle.lborderB > triangle.lborderC
&& triangle.lborderA + triangle.lborderC > triangle.lborderB
&& triangle.lborderB + triangle.lborderC > triangle.lborderA) {
isTriangle = true;
}
return isTriangle;
}
}

测试用例集如下：

1. 边界值测试：
1) lborderA = 0, lborderB = 0, lborderC = 0
2) lborderA = Long.MAX_VALUE, lborderB = Long.MAX_VALUE, lborderC = Long.MAX_VALUE
3) lborderA = Long.MIN_VALUE, lborderB = Long.MIN_VALUE, lborderC = Long.MIN_VALUE
4) lborderA = 1, lborderB = 1, lborderC = 1
5) lborderA = 2, lborderB = 2, lborderC = 5
2. 最坏情况测试：
1) lborderA = 1, lborderB = 2, lborderC = 3
2) lborderA = 1, lborderB = 3, lborderC = 2
3) lborderA = 2, lborderB = 1, lborderC = 3
4) lborderA = 2, lborderB = 3, lborderC = 1
5) lborderA = 3, lborderB = 1, lborderC = 2
6) lborderA = 3, lborderB = 2, lborderC = 1
3. 等边三角形测试：
1) lborderA = 5, lborderB = 5, lborderC = 5
4. 等腰三角形测试：
1) lborderA = 5, lborderB = 5, lborderC = 7
2) lborderA = 5, lborderB = 7, lborderC = 5
3) lborderA = 7, lborderB = 5, lborderC = 5
5. 普通三角形测试：
1) lborderA = 3, lborderB = 4, lborderC = 5
2) lborderA = 4, lborderB = 5, lborderC = 6
3) lborderA = 6, lborderB = 7, lborderC = 9