Menu
Here is an assertion that I have written
assert.equal(0,0,"Test Passed);
I was hoping that it would print the message Test passed but it is not happening. However if the assertion fails the message is displayed along with the error.
So is there any way to print the message if the test is successful?
789
try { Assert. assertEquals(actualString, expectedString); } catch (AssertionError e) { System. out. println("Not equal"); throw e; } System.
Example: >>> assert (1==2, 1==1) <stdin>:1: SyntaxWarning: assertion is always true, perhaps remove parentheses? Example: >>> assert (1==2), ("This condition returns a %s value.") % "False" Traceback (most recent call last): File "<stdin>", line 1, in <module> AssertionError: This condition returns a False value.
The assert keyword is used when debugging code. The assert keyword lets you test if a condition in your code returns True, if not, the program will raise an AssertionError. You can write a message to be written if the code returns False, check the example below.
From a test readability perspective, assertion messages are code comments. Instead of relying on them, refactor tests to be self-documenting. In terms of ease of diagnostics, a better alternative to assertion messages is: Making tests verify a single unit of behavior.
According to the source, the message is only printed when the assertion fails.
assert.equal = function equal(actual, expected, message) {
if (actual != expected) fail(actual, expected, message, '==', assert.equal);
};
Just for completeness here is the definition of fail.
function fail(actual, expected, message, operator, stackStartFunction) {
throw new assert.AssertionError({
message: message,
actual: actual,
expected: expected,
operator: operator,
stackStartFunction: stackStartFunction
});
}
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
