How to test XELement and its child elements?

Question

I have a sample Xml code snippet

<modification name="givenName" operation="add" xmlns="urn:oasis:names:tc:DSML:2:0:core">
    <value>Changed name</value>
</modification>

The xml is loaded to my XElement, and I used

        XElement xml = ...to load xml above...;
        xml.Should().HaveAttribute("name", "givenName")
            .And.HaveAttribute("operation", "add")
            .And.HaveAttribute("xmlns", "urn:oasis:names:tc:DSML:2:0:core")
            .And.HaveElement("value");

to test my code, the attributes testing are all passed, but the element testing (the last condition) fails.

Anyone can point out what is wrong with my code?

And how can I test the Xml has an element named "value" and its value is "Changed name"?

Thanks in advance!

score 2 · Accepted Answer · answered Aug 23 '12 at 20:37

2

I suspect the problem is that the XName of the element isn't just value - it's value with a namespace. Presumably HaveElement is namespace-aware. Try this:

XElement xml = ...to load xml above...;
XNamespace ns = "urn:oasis:names:tc:DSML:2:0:core";
xml.Should().HaveAttribute("name", "givenName")
    .And.HaveAttribute("operation", "add")
    .And.HaveAttribute("xmlns", "urn:oasis:names:tc:DSML:2:0:core")
    .And.HaveElement(ns + "value");

The last line checks whether it's got the namespace-qualified element.

answered Aug 23 '12 at 20:37

Jon Skeet

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Good catch, I have to include namespace. However I have to change the code a bit `And.HaveElement((ns + "value").ToString())` otherwise it won't compile. – hardywang Aug 23 '12 at 20:42
Any clue how can I test element's value is "Changed name"? – hardywang Aug 23 '12 at 20:46
@hardywang: Urgh - it doesn't take an XName? That sucks as an API :( – Jon Skeet Aug 23 '12 at 20:46
@hardywang: No idea about checking the value, I'm afraid - I've never used the fluent assertions library. – Jon Skeet Aug 23 '12 at 20:47
1

We'll gonna look at it in the next version of Fluent Assertions. – Dennis Doomen Aug 24 '12 at 06:06
@DennisDoomen: The value part, or taking an `XName` as the input for `HaveElement`, `HaveAttribute` etc? The latter feels like it should be a no-brainer to me :) – Jon Skeet Aug 24 '12 at 06:10
1

Both. But we're in the process of finalizing a big release with a beta, so we'll have to freeze this for a few weeks. – Dennis Doomen Aug 24 '12 at 06:26

score 2 · Answer 2 · answered Feb 23 '13 at 15:12

2

It's going to be part of Fluent Assertions 2.1. If you can't wait you can get it through the Git repository

answered Feb 23 '13 at 15:12

Dennis Doomen

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How to test XELement and its child elements?

2 Answers2