test_student_typed

test_student_typed(text, pattern=True, not_typed_msg=None, state=None)

Test the student code.

Tests if the student typed a (pattern of) text.

Parameters:

• text (str) – the text that is searched for
• pattern (bool) – if True, the text is treated as a pattern. If False, it is treated as plain text. Defaults to False.
• not_typed_msg (str) – feedback message to be displayed if the student did not type the text.

test_student_typed(text,
                   pattern=True,
                   not_typed_msg=None)

test_student_typed() will look through the student’s submission to find a match with the string specified in text. With pattern, you can declare whether or not to use regular expressions.

Suppose the solution of an exercise looks like this:

*** =solution
```{python}
# Calculate the sum of all single digit numbers and assign the result to 's'
s = sum(range(10))

# Print the result to the shell
print(s)
```

The following SCT tests whether the student typed "sum(range(":

*** =sct
```{python}
test_student_typed("sum(range(", pattern = False)
success_msg("Great job!")
```

Notice that we set pattern to False, this will cause test_student_typed() to search for the pure string, no patterns are used. This SCT is not that robust though, it won’t accept something like sum( range(10) ). This is why we should almost always use regular expressions in test_student_typed. For example:

*** =sct
```{python}
test_student_typed("sum\s*\(\s*range\s*\(", not_typed_msg="You didn't use `range()` inside `sum()`.")
success_msg("Great job!")
```

We also used not_typed_msg here, which will control the feedback given to the student when test_student_typed() doesn’t pass. Note that also success_msg() is used here, this is the message that is shown when the SCT has passed.

In general, you should avoid using test_student_typed(), as it imposes severe restrictions on how a student can solve an exercise. Often, there are different ways to solve an exercise. Unless you have a very advanced regular expression, test_student_typed() will not be able to accept all these different approaches. For the example above, test_function() would be more appropriate.