public void PlannerClass_GetPressureGroup_SelectedValuesAndEdgeCases()
{
// Depth lower than minimum on table
Assert.AreEqual('A', _classUnderTest.GetPressureGroup(8, 10), "Unexpected value for 8,10");
// Duration lower than minimum on table
Assert.AreEqual('A', _classUnderTest.GetPressureGroup(10, 8), "Unexpected value for 10,8");
// Duration AND depth lower than minimum on table
Assert.AreEqual('A', _classUnderTest.GetPressureGroup(8, 8), "Unexpected value for 8,8");
// Matches cell exactly
Assert.AreEqual('A', _classUnderTest.GetPressureGroup(10, 10), "Unexpected value for 10,10");
// Depth just over cell value
Assert.AreEqual('B', _classUnderTest.GetPressureGroup(11, 11), "Unexpected value for 11,10");
// Duration just over cell value
Assert.AreEqual('B', _classUnderTest.GetPressureGroup(10, 11), "Unexpected value for 10,11");
// Duration at maximum for depth
Assert.AreEqual('Z', _classUnderTest.GetPressureGroup(10, 219), "Unexpected value for 10,219");
// Duration above maximum for depth
Assert.IsNull(_classUnderTest.GetPressureGroup(10, 220), "Unexpected value for 10,220");
// Depth at Maximum for table
Assert.AreEqual('B', _classUnderTest.GetPressureGroup(42, 4), "Unexpected value for 42,4");
// Depth over Maximum for table
Assert.IsNull(_classUnderTest.GetPressureGroup(43, 4), "Unexpected value for 43,4");
// Duration and Depth over Maximum for table
Assert.IsNull(_classUnderTest.GetPressureGroup(43, 9), "Unexpected value for 43,9");
// Cell skips down to next depth
Assert.AreEqual('B', _classUnderTest.GetPressureGroup(40, 1), "Unexpected value for 40,1");
Assert.AreEqual('B', _classUnderTest.GetPressureGroup(42, 1), "Unexpected value for 42,1");
Assert.AreEqual('D', _classUnderTest.GetPressureGroup(42, 5), "Unexpected value for 42,5");
// can't test skip-down for 35 metres for 8.5 mins
// can't test skip-down for 40 metres for 6.5 mins
}