Function googletest::matchers::char_count
source · pub fn char_count<T: Debug + ?Sized + AsRef<str>, E: Matcher<ActualT = usize>>(
expected: E
) -> impl Matcher<ActualT = T>
Expand description
Matches a string whose number of Unicode scalars matches expected
.
In other words, the argument must match the output of
actual_string.chars().count()
.
This can have surprising effects when what appears to be a single character is composed of multiple Unicode scalars. See Rust documentation on character representation for more information.
This matches against owned strings and string slices.
let string_slice = "A string";
verify_that!(string_slice, char_count(eq(8)))?;
let non_ascii_string_slice = "Ä ſtřiɲğ";
verify_that!(non_ascii_string_slice, char_count(eq(8)))?;
let owned_string = String::from("A string");
verify_that!(owned_string, char_count(eq(8)))?;
The parameter expected
can be any integer numeric matcher.
let string_slice = "A string";
verify_that!(string_slice, char_count(gt(4)))?;