Empty cells should display the value of a field or property. If a cell contains "blank" or "null" then treat it as blank ("") or truly null.

Empty cells are automatically filled with the value of the field or property, and no check is performed. To explicitly set a value to empty string ("") or null, or to check for empty string or null, use the "blank" and "null" keywords.

This works in column fixtures...

fit.ff.FixtureFixture
fixture	string fixture
	field	field	field?	field?	field?
--rww	null		null	blank	joe
--wrw	blank		null	blank	joe
--wwr	joe		null	blank	joe

...row fixtures...

fit.ff.FixtureFixture
fixture	blank and null keyword row fixture
	field	property	get	field	property	get	field	property	get
rrrwwwwww	null	null	null	blank	blank	blank	Joe	Joe	Joe
rrrwwwwww	blank	blank	blank	Joe	Joe	Joe	null	null	null
rrrwwwwww	Joe	Joe	Joe	null	null	null	blank	blank	blank

public class BlankAndNullKeywordRowFixture : RowFixture
{
	public override object[] Query()
	{
		StringFixture fixture1 = new StringFixture();
		fixture1.Field = null;
		fixture1.Property = null;
		fixture1.Set(null);
		StringFixture fixture2 = new StringFixture();
		fixture2.Field = "";
		fixture2.Property = "";
		fixture2.Set("");
		StringFixture fixture3 = new StringFixture();
		fixture3.Field = "Joe";
		fixture3.Property = "Joe";
		fixture3.Set("Joe");
		return new object[]{fixture1, fixture2, fixture3};
	}

	public override Type GetTargetClass()
	{
		return typeof(StringFixture);
	}
}

...and action fixtures...

fit.ff.FixtureFixture
fixture	action fixture
	start	string fixture
	enter	field	null
---	check	field
--r	check	field	null
--w	check	field	blank
--w	check	field	Joe

fit.ff.FixtureFixture
fixture	action fixture
	start	string fixture
	enter	field	blank
---	check	field
--w	check	field	null
--r	check	field	blank
--w	check	field	Joe

fit.ff.FixtureFixture
fixture	action fixture
	start	string fixture
	enter	field	Joe
---	check	field
--w	check	field	null
--w	check	field	blank
--r	check	field	Joe

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