Capybara, rspec- How to find text anywhere on page - xpath

Question

There are multiple ways to find it but I want to do this in a specific manner. Here it is-
To get an element with some text in it, my framework creates an xpath in this manner-
#xpath = "//h1[contains(text(), '[the-text-i-am-searching-for]')]"
Then it executes-
find(:xpath, #xpath).visible?
Now in similar format I want to create an xpath which just looks for a text anywhere in the page and then can be used in find(:xpath,#xpath).visible? to return a true or false.
To give a little more context:
My HTML paragraph looks something like this-
<blink><p>some text here <b><u>some bold and underlined text here</u></b> again some text Learn more [the-text-i-am-searching-for]</p></blink>
but if I try to find it using find(:xpath, #xpath) where my xpath is
#xpath = "//p[contains(text(), '[the-text-i-am-searching-for]')]"
it fails.

Answer 1

Try replacing "//p[contains(text(), '[the-text-i-am-searching-for]')]" with "//p[contains(., '[the-text-i-am-searching-for]')]"
I don't know your environment but in Python with lxml it works:
>>> import lxml.etree
>>> doc = lxml.etree.HTML("""<blink><p>some text here <b><u>some bold and underlined text here</u></b> again some text Learn more [the-text-i-am-searching-for]</p></blink>""")
>>> doc.xpath('//p[contains(text(), "[the-text-i-am-searching-for]")]')
[]
>>> doc.xpath('//p[contains(., "[the-text-i-am-searching-for]")]')
[<Element p at 0x1c1b9b0>]
>>>
The context node . will be converted to a string to match the signature boolean contains(string, string) (http://www.w3.org/TR/xpath/#section-String-Functions)
>>> doc.xpath('string(//p)')
'some text here some bold and underlined text here again some text Learn more [the-text-i-am-searching-for]'
>>>
Consider these variations
>>> doc.xpath('//p')
[<Element p at 0x1c1b9b0>]
>>> doc.xpath('//p/*')
[<Element b at 0x1e34b90>, <Element a at 0x1e34af0>]
>>> doc.xpath('string(//p)')
'some text here some bold and underlined text here again some text Learn more [the-text-i-am-searching-for]'
>>> doc.xpath('//p/text()')
['some text here ', ' again some text ', ' [the-text-i-am-searching-for]']
>>> doc.xpath('string(//p/text())')
'some text here '
>>> doc.xpath('//p/text()[3]')
[' [the-text-i-am-searching-for]']
>>> doc.xpath('//p/text()[contains(., "[the-text-i-am-searching-for]")]')
[' [the-text-i-am-searching-for]']
>>> doc.xpath('//p[contains(text(), "[the-text-i-am-searching-for]")]')
[]