SatisfyAllConditions

Asserts that every one of the supplied conditions holds, reporting all the failures at once rather than stopping at the first.

Which form to use:

• All the assertions hang off a common subject → use the value.ShouldSatisfy([...]) extension method. The value under test is passed to each condition, and it appears as the subject in the failure message.

• A group of otherwise unrelated assertions → use the static Should.Satisfy([...]) method. There is no single subject to pass, so each condition is a self-contained assertion.

ShouldSatisfyAllConditions is the original name for this assertion. It still works but is now obsolete: it cannot capture the asserted expression via CallerArgumentExpression and falls back to stack-trace parsing, which is not trim- or AOT-safe. Prefer ShouldSatisfy / Should.Satisfy.

A common subject — ShouldSatisfy

var mrBurns = new Person { Name = null };
mrBurns.ShouldSatisfy(
                [
                    p => p.Name.ShouldNotBeNullOrEmpty(),
                    p => p.Name.ShouldBe("Mr.Burns")
                ]);

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Exception

mrBurns
    should satisfy all the conditions specified, but does not.
The following errors were found ...
---------------- Error 1 ----------------
    p.Name (null)
        should not be null or empty

---------------- Error 2 ----------------
    p.Name
        should be
    "Mr.Burns"
        but was
    null

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Unrelated conditions — Should.Satisfy

var mrBurns = new Person { Name = null };
var homer = new Person { Name = "Homer" };
Should.Satisfy(
                [
                    () => mrBurns.Name.ShouldNotBeNullOrEmpty(),
                    () => homer.Name.ShouldBe("Mr.Burns")
                ]);

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Exception

The conditions specified should all be satisfied, but were not.
The following errors were found ...
---------------- Error 1 ----------------
    mrBurns.Name (null)
        should not be null or empty

---------------- Error 2 ----------------
    homer.Name
        should be
    "Mr.Burns"
        but was
    "Homer"
        difference
    Expected: "Mr.Burns"
    Actual:   "Homer"

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