public void TryGetByTargetTypeReturnsFalseWhenThereNotIsAMatch()
{
var valueConverters = new ValueConverters();
Assert.False(valueConverters.TryGet(typeof(Bar), out var convertBar));
Assert.False(valueConverters.TryGet(typeof(Baz), out var convertBaz));
}
public void TryGetByDeclaringTypeAndMemberNameReturnsFalseWhenThereNotIsAMatch()
{
var valueConverters = new ValueConverters();
Assert.False(valueConverters.TryGet(typeof(Foo), "bar", out var convertBar));
Assert.False(valueConverters.TryGet(typeof(Foo), "baz", out var convertBaz));
}
public void TryGetByTargetTypeReturnsTrueWhenThereIsAMatch()
{
var valueConverters = new ValueConverters()
.Add(typeof(Bar), value => new Bar(int.Parse(value)))
.Add(typeof(Baz), ParseBaz);
Assert.True(valueConverters.TryGet(typeof(Bar), out var convertBar));
Assert.True(valueConverters.TryGet(typeof(Baz), out var convertBaz));
}
public void TryGetByDeclaringTypeAndMemberNameReturnsTrueWhenThereIsAMatch()
{
var valueConverters = new ValueConverters()
.Add(typeof(Foo), "bar", value => new Bar(int.Parse(value)))
.Add(typeof(Foo), "baz", ParseBaz);
Assert.True(valueConverters.TryGet(typeof(Foo), "bar", out var convertBar));
Assert.True(valueConverters.TryGet(typeof(Foo), "baz", out var convertBaz));
}
public void TheConvertFuncReturnedByTryGetCallsTheConvertFuncPassedToTheAddByDeclaringTypeAndMemberNameMethod()
{
var invocationCount = 0;
Func <string, Bar> registeredConvertBar = value =>
{
invocationCount++;
return(new Bar(int.Parse(value)));
};
var valueConverters = new ValueConverters()
.Add(typeof(Foo), "bar", registeredConvertBar);
Assert.True(valueConverters.TryGet(typeof(Foo), "bar", out var retrievedConvertBar));
Assert.Equal(0, invocationCount);
var converted = retrievedConvertBar("123");
Assert.Equal(1, invocationCount);
Assert.IsType <Bar>(converted);
Assert.Equal(123, ((Bar)converted).Baz);
}
public void TheConvertFuncReturnedByTryGetCallsTheConvertFuncPassedToTheAddByTargetTypeMethod()
{
var invocationCount = 0;
Func <string, Baz> registeredConvertBaz = value =>
{
invocationCount++;
return(ParseBaz(value));
};
var valueConverters = new ValueConverters()
.Add(typeof(Baz), registeredConvertBaz);
Assert.True(valueConverters.TryGet(typeof(Baz), out var retrievedConvertBaz));
Assert.Equal(0, invocationCount);
var converted = retrievedConvertBaz("123.45,-76.543");
Assert.Equal(1, invocationCount);
Assert.IsType <Baz>(converted);
Assert.Equal(123.45, ((Baz)converted).Latitude);
Assert.Equal(-76.543, ((Baz)converted).Longitude);
}