tester

# Write the actual tester here. This should be an executable that takes test settings as a json string sent as an argument to the `tester` script,
# and prints test results to stdout as json in the following format:
{
    "test_name": # name of the test,
    "output": # any additional information provided by the test run (test result output for example),
    "marks_earned": # the number of marks earned by running this test,
    "marks_total": # the number of total possible marks that can be earned from running this test,
    "status": # a status code. One of: "pass", "fail", "partial", "error",
    "time": # the amount of time in milliseconds it took to run the test (optional)
}

If this tester generates annotations for the files under test, they should be reported by printing the annotations
to stdout as json in the following format:

{
    "annotations": [
        {
            "filename": # a relative path (from the root of the test directory) to the file to annotate,
            "content": # a string containing the content/message of the annotation,
            "line_start": # an integer indicating which line the annotation starts at (1-indexed),
            "line_end": # an integer indicating which line the annotation ends at (1-indexed),
            "column_start": # an integer indicating which character/column the annotation starts at (0-indexed),
            "column_end", # an integer indicating which character/column the annotation ends at (0-indexed)
        },
        ...
    ]
}

# This tester can run multiple tests and each test should print a json string formatted as above to stdout.
# Do not print the json strings in an array, just print them one by one to stdout. For example, a tester should
# print:

{ "test_name": ... }
{ "test_name": ... }
{ "test_name": ... }

# as opposed to:

[
    { "test_name": ... },
    { "test_name": ... },
    { "test_name": ... }
]