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Utilities to assert the structure of a DiagnosticsHierarchy.

Pretty much the useful assert_data_tree macro plus some utilities for it.

Macros§

assert_data_tree: Macro to simplify tree matching in tests. The first argument is the actual tree passed as a DiagnosticsHierarchyGetter (e.g. a DiagnosticsHierarchy or an Inspector). The second argument is given to tree_assertion! which creates a TreeAssertion to validate the tree.
assert_json_diff: Macro to check a hierarchy with a nice JSON diff. The syntax of the expected value is the same as that of hierarchy!, and essentially the same as assert_data_tree!, except that partial tree matching is not supported (i.e. the keyword contains).
hierarchy: This macro simplifies creating diagnostics hierarchies, to remove the need of writing multiple nested hierarchies and manually writing all properties.
tree_assertion: Macro to simplify creating TreeAssertions. Commonly used indirectly through the second parameter of assert_data_tree!. See assert_data_tree! for more usage examples.

AnyBoolProperty: A PropertyAssertion that passes for any Boolean.
AnyBytesProperty: A PropertyAssertion that passes for any Bytes.
AnyDoubleProperty: A PropertyAssertion that passes for any Double.
AnyIntProperty: A PropertyAssertion that passes for any Int.
AnyNumericProperty: A PropertyAssertion that passes for any Int, Uint, or Double.
AnyProperty: A PropertyAssertion that always passes
AnyStringProperty: A PropertyAssertion that passes for any String.
AnyUintProperty: A PropertyAssertion that passes for any Uint.
DiagnosticsHierarchy: A hierarchy of nodes representing structured data, such as Inspect or structured log data.
Diff: A difference between expected and actual output.
HistogramAssertion: An assertion for a histogram property.
NonZeroIntProperty: A PropertyAssertion that passes for non-zero, signed integers.
NonZeroUintProperty: A PropertyAssertion that passes for non-zero, unsigned integers.
TreeAssertion: Struct for matching against a Data tree (DiagnosticsHierarchy).

DiagnosticsHierarchyGetter: A type which can function as a “view” into a diagnostics hierarchy, optionally allocating a new instance to service a request.
JsonGetter
PropertyAssertion: Trait implemented by types that can act as properies for assertion.