Expects one value equals another value.
Arguments:
- $1
[string]
-- The first value. - $2
[string]
-- The second value. - [$3]
"--"
-- An optional specifier that enables custom failure messages. - [$4]
[string]
-- The custom failure message pattern, with "%s" for the values provided.
Example:
expect_equal 1 1 # Success
expect_equal "yes" "no" # Failure
expect_equal 1 2 -- "%s to equal %s" # Failure: "Expected 1 to equal 2"