missing-test-assertion

added in: 1.6.0 warning

Warns that there is no assertion in the test.

By default the rule checks for expect, expectLater, all expectAsync... variants and fail in test and testWidgets methods.

Config

Set include-assertions (default is none) to include additional assertions.

Set include-methods (default is none) to check additional test methods for missing assertions.

dart_code_linter:
  ...
  rules:
    ...
    - missing-test-assertion:
        include-assertions:
          - verify
        include-methods:
          - customTest

Example

Bad:

test('bad unit test', () {
    // Given
    final a = 1;
    final b = 2;

    // When
    final c = a + 1;
});

Good:

test('good unit test', () {
    // Given
    final a = 1;
    final b = 2;

    // When
    final c = a + 1;

    // Then : actual assertion
    expect(b, c);
});