path: root/resources/model_schema/test_case.schema.yaml

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---

$id: https://fd.io/FIXME/CSIT/UTI/test_case/info/1.5.0
$schema: https://json-schema.org/draft/2020-12/schema
description: >-
    Schema for output of test case.
allOf:
-   description: >-
        The main structure, without conditional relations between fields yet.
    type: object
    additionalProperties: false
    properties:
        duration:
            description: >-
                A derived quantity. Difference between start_time and end_time,
                in seconds.
            $ref: "#/$defs/types/nonnegative_number"
        dut_type:
            description: >-
                DUT type used, e.g. VPP or DPDK.
            type: string
            minLength: 1
        dut_version:
            description: >-
                Version string appropriate to DUT type used.
            type: string
            minLength: 1
        end_time:
            description: >-
                UTC date and time in RFC 3339 format, specifying calendar time
                just before test case ended (at the end of test case teardown).
            $ref: "#/$defs/types/date_time"
        hosts:
            description: >-
                Array of hosts this test interacted with.
                This can be used for identifying testbed number.
                Valid tests shoud interact with at least one DUT or TG.
                The array is usually sorted, but that is not a requirement.
            type: array
            minItems: 1
            items:
                description: >-
                    Host identifier, usually numeric IPv4 address.
                type: string
        telemetry:
            description: >-
                Array of telemetry entries. Each entry represent one captured
                metric.
            type: array
            minItems: 0
            items:
                description: >-
                    Telemetry entry.
                type: string
        message:
            description: >-
                If passed is true, this value is empty.
                Otherwise, value taken directly from TEST_MESSAGE
                Robot variable, read at the end of test case
                (in test teardown, before export and validation).
                It contains information from the exception
                that caused the failure, probably with additional
                exceptions from teardown keywords.
            type: string
        passed:
            description: >-
                Value set accordingly to TEST_STATUS Robot variable,
                true if and only if the status is "PASS".
                The status is read at the end of test case
                (in test teardown, before export and validation).
            type: boolean
        result:
            type: object
            allOf:
            -   description: >-
                    Sub-schema common for all cases,
                    only result type identifier defined here.
                properties:
                    type:
                        description: >-
                            Identifier of which result type case is applied.
                        type: string
                required:
                -   type
            -   oneOf:
                -   description: >-
                        Result type for unknown case.
                        This case represents a test with no specific result
                        (outside message), e.g. device test;
                        or a test with result not parsed into
                        this version of model yet, e.g. GSO test.
                    additionalProperties: false
                    properties:
                        type:
                            const: unknown
                -   description: >-
                        Result type MRR case.
                    additionalProperties: false
                    properties:
                        type:
                            const: mrr
                        receive_rate:
                            description: >-
                                The results refer to receive rates for multiple
                                MRR trials. For PPS, these are aggregate
                                (bidirectional) rates.
                                Currently, the tests are exporting
                                approximated receive rates.
                                That means the actual trial duration
                                is measured (as opposed to trusting traffic
                                generator to honor its target duration),
                                so the resulting values contain noise
                                from time measurement, and can be lower
                                than the real performance
                                (due to various time overheads).
                                Bandwidth values are supported, but currently
                                Robot does not export them.
                            $ref: "#/$defs/types/rate_list_with_bandwidth"
                    required:
                    -   type
                    -   receive_rate
                -   description: >-
                        Result type NDRPDR case.
                    additionalProperties: false
                    properties:
                        type:
                            const: ndrpdr
                        ndr:
                            description: >-
                                The results refer to search for NDR
                                For PPS, lowerbound is aggregate
                                (bidirectional) conditional throughput
                                (forwarding rate across good long trials),
                                upperbound is missing.
                                The accepted loss ratio for NDR is exact zero.
                                Exceed ratio is 50%.
                                Note that packets the Traffic Generator
                                did not send are also counted as lost packets.
                            $ref: "#/$defs/macros/lower_and_maybe_upper_rate"
                        pdr:
                            description: >-
                                The results refer to search for PDR.
                                For PPS, lowerbound is aggregate
                                (bidirectional) conditional throughput
                                (forwarding rate across good long trials),
                                upperbound is missing.
                                The accepted loss ratio for PDR is 0.5%.
                                Exceed ratio is 50%.
                                Note that packets the Traffic Generator
                                did not send are also counted as lost packets.
                            $ref: "#/$defs/macros/lower_and_maybe_upper_rate"
                        latency_forward:
                            description: >-
                                Object with results related to latency part
                                of NDRPDR test, for forward traffic direction.
                                It is the direction used in unidirectional
                                traffic profiles.
                                ASTF profiles and IMIX STL profiles
                                do not support latency information,
                                so for those tests this object is missing.
                                It is also missing if Traffic Generator
                                fails to return valid latency results
                                for any other reasons,
                                e.g. latency rate is too high for CPU/NIC used.
                            $ref: "#/$defs/macros/latency_for_loads"
                        latency_reverse:
                            description: >-
                                Object with results related to latency part
                                of NDRPDR test, for reverse traffic diration.
                                This object is not present
                                when unidirectional traffic profiles are used.
                                ASTF profiles and IMIX STL profiles
                                do not support latency information,
                                so for those tests this object is missing.
                                It is also missing if Traffic Generator
                                fails to return valid latency results
                                for any other reasons,
                                e.g. latency rate is too high for CPU/NIC used.
                            $ref: "#/$defs/macros/latency_for_loads"
                    required:
                    -   type
                    -   ndr
                    -   pdr
                -   description: >-
                        Result type SOAK case.
                    additionalProperties: false
                    properties:
                        type:
                            const: soak
                        critical_rate:
                            description: >-
                                The results refer to bayesian estimate
                                of critical rate corresponding to
                                average loss ratio of 10^-7.
                                For PPS, this is aggregate (bidirectional) rate.
                                The bounds are computed from
                                trial measurement results,
                                but are not equal to any target load used.
                                Note that packets the Traffic Generator
                                did not send are also counted as lost packets.
                            $ref: "#/$defs/macros/lower_and_maybe_upper_rate"
                    required:
                    -   type
                    -   critical_rate
                -   description: >-
                        Result type RECONF case.
                    additionalProperties: false
                    properties:
                        type:
                            const: reconf
                        aggregate_rate:
                            description: >-
                                Load used when reconfiguring, found as NDR lower
                                bound. This is an aggregate (bidirectional)
                                rate. Note that packets which the Traffic
                                Generator did not send, are also counted as lost
                                packets.
                            $ref: "#/$defs/types/rate_with_bandwidth"
                        loss:
                            description: >-
                                Number of packets lost during reconfiguration,
                                with the time that equals packet loss divided by
                                packet rate.
                            $ref: "#/$defs/types/packet_with_time"
                    required:
                    -   type
                    -   loss
                    -   aggregate_rate
                -   description: >-
                        Result type HOSTSTACK case.
                    additionalProperties: false
                    properties:
                        type:
                            const: hoststack
                        bandwidth:
                            description: >-
                                Goodput measured in bits per second.
                            $ref: "#/$defs/types/bandwidth"
                        completed_requests:
                            description: >-
                                Number of completed requests.
                            $ref: "#/$defs/types/count_requests"
                        failed_requests:
                            description: >-
                                Number of failed requests.
                            $ref: "#/$defs/types/count_requests"
                        retransmits:
                            description: >-
                                Number of retransmits.
                            $ref: "#/$defs/types/count_packets"
                        latency:
                            description: >-
                                Value and unit of latency.
                            $ref: "#/$defs/types/value_with_unit"
                        duration:
                            description: >-
                                The relative time difference (in seconds)
                                between program start and end.
                            $ref: "#/$defs/types/time_quantity"
                        rate:
                            description: >-
                                RPS or CPS rate, with corresponding unit, as
                                reported by TG.
                            $ref: "#/$defs/types/rate_without_bandwidth"
                    required:
                    -   type
                    -   bandwidth
        start_time:
            description: >-
                UTC date and time in RFC 3339 format, specifying calendar time
                just after test case started (at the start of test setup).
            $ref: "#/$defs/types/date_time"
        tags:
            description: >-
                The list of strings comes directly
                from Robot variable TEST_TAGS.
                The content should include both static and dynamic tags
                at the end of test case (teardown).
            type: array
            items:
                type: string
        test_documentation:
            description: >-
                Value taken directly from TEST_DOCUMENTATION Robot variable.
                The content is what you see in suite file
                at test case definition, which is usually empty
                as CSIT uses data driven test cases.
            type: string
        test_id:
            description: >-
                A derived quantity.
                It is the most complete and unique identifier for a test case.
                This property has a value, of the following form:
                {suite_name}.{test_name}
                Here, suite name comes from SUITE_NAME robot variable,
                test name comes from TEST_NAME robot variable,
                but both are converted to lower case,
                and spaces are replaced by underscores.
            type: string
            minLength: 3
        test_name_long:
            description: >-
                A derived quantity.
                This property has a value, of the following form:
                {nic_short_name}-{frame_size}-{threads_and_cores}-{suite_part}
                Here, suite part is very similar to suite tag,
                but additionally may contain a prefix describing NIC driver used
                (if it is not the default one, drv_vfio_pci for VPP tests).
                Any space is replaced by underscore and letters are lower case.
            type: string
            minLength: 3
        test_name_short:
            description: >-
                A derived quantity.
                This property has a value very similar to suite tag,
                but additionally may contain a prefix describing NIC driver used
                (if it is not the default one, drv_vfio_pci for VPP tests).
                Any space is replaced by underscore and letters are lower case.
            type: string
            minLength: 3
        test_type:
            description: >-
                A derived quantity.
                Test type identifier, PAL uses it to group similar tests,
                e.g. for comparison tables.
                Ideally, this information should be parseable from test name,
                but the current naming scheme is not simple/consistent enough.
                The current implementation queries the robot test tags.
                The resulting value is frequently identical to result type,
                but this schema version does not require any relation there,
                as PAL may want to group tests differently.
            type: string
            enum:
            -   device
            -   gso
            -   hoststack
            -   mrr
            -   ndrpdr
            -   reconf
            -   soak
        tg_type:
            description: >-
                TG type used, e.g. TREX.
            type: string
            minLength: 1
        tg_version:
            description: >-
                Version string appropriate to TG type used.
            type: string
            minLength: 1
        version:
            description: >-
                CSIT model version (semver format)
                the exporting code adhered to.
            type: string
            const: 1.4.0
    required:
    -   duration
    -   dut_type
    -   dut_version
    -   end_time
    -   hosts
    -   telemetry
    -   message
    -   passed
    -   result
    -   start_time
    -   tags
    -   test_documentation
    -   test_id
    -   test_name_long
    -   test_name_short
    -   test_type
    -   tg_type
    -   tg_version
    -   version
-   description: >-
        Subschema validating relation between status and message.
    oneOf:
    -   description: >-
            Subschema for passing tests, message has to be empty.
        type: object
        properties:
            passed:
                const: true
            message:
                const: ""
    -   description: >-
            Subschema for failing tests, mesage cannot be empty.
        type: object
        properties:
            passed:
                const: false
            message:
                minLength: 1

$defs:
    types:
        nonnegative_number:
            type: number
            minimum: 0
        positive_number:
            type: number
            minimum: 1
        nonnegative_integer:
            type: integer
            minimum: 0
        positive_integer:
            type: integer
            minimum: 1
        date_time:
            type: string
            format: date-time
        empty_array:
            type: array
            maxItems: 0
        rate_unit:
            description: >-
                Packets per second (pps),
                connections per second (cps),
                requests per second (rps),
                bits per second (bps).
            type: string
            enum:
            -   pps
            -   cps
            -   rps
            -   bps
        bandwidth_unit:
            description: >-
                Unit of measurement for bandwidth values.
                Currently a constant, but later versions of model
                may allow more units.
            enum:
            -   bps
        count_packets:
            description: >-
                Type, for counting packets.
            allOf:
            -   $ref: "#/$defs/types/value_with_unit"
            -   properties:
                    value:
                        description: >-
                            A number of packets of interest.
                    unit:
                        description: >-
                            Unit suitable for displaying packet counts.
                        enum:
                        -   packets
        count_requests:
            description: >-
                Type, for counting requests.
            allOf:
            -   $ref: "#/$defs/types/value_with_unit"
            -   properties:
                    value:
                        description: >-
                            A number of requests of interest.
                    unit:
                        description: >-
                            Unit suitable for displaying request counts.
                        enum:
                        -   requests
        time_quantity:
            description: >-
                Reusable type, for various time quantites.
            allOf:
            -   $ref: "#/$defs/types/value_with_unit"
            -   properties:
                    value:
                        description: >-
                            Unless specified otherwise, this is a duration
                            between two events.
                    unit:
                        description: >-
                            Only seconds are the unit supported for time
                            quantities.
                        enum:
                        -   s
        value_with_unit:
            description: >-
                Reusable composite type, value together with its
                unit of measurement.
            type: object
            additionalProperties: false
            properties:
                value:
                    description: >-
                        Numeric value, context specified elsewhere.
                        The only assumption is that value is not negative.
                    $ref: "#/$defs/types/nonnegative_number"
                unit:
                    description: >-
                        Unit of measurement for the value.
                        Context and allowed values are specified elsewhere.
                    type: string
            required:
            -   value
            -   unit
        rate_without_bandwidth:
            description: >-
                Reusable type, for various rate quantites.
            allOf:
            -   $ref: "#/$defs/types/value_with_unit"
            -   properties:
                    value:
                        description: >-
                            Unless specified otherwise,
                            this is the aggregated rate
                            (sum of both traffic directions).
                            Depending on the usage, the value can express
                            intended load, offered load, receive rate,
                            and various approximations
                            or estimated bounds thereof.
                    unit:
                        description: >-
                            A transaction rate unit the value is expressed in.
                        $ref: "#/$defs/types/rate_unit"
        bandwidth:
            description: >-
                Reusable type, for various bandwidth quantites.
            allOf:
            -   $ref: "#/$defs/types/value_with_unit"
            -   properties:
                    value:
                        description: >-
                            Bandwidth value computed from the corresponding
                            rate.
                    unit:
                        $ref: "#/$defs/types/bandwidth_unit"
        rate_with_bandwidth:
            description: >-
                Reusable composite type, joining primary rate
                with optional derived bandwidth.
                Not all test types currently compute bandwidth,
                even if rate unit is pps.
            type: object
            additionalProperties: false
            properties:
                rate:
                    $ref: "#/$defs/types/rate_without_bandwidth"
                bandwidth:
                    $ref: "#/$defs/types/bandwidth"
            required:
            - rate
        packet_with_time:
            description: >-
                Reusable composite type, joining packet count with the
                time quantity.
            type: object
            additionalProperties: false
            properties:
                packet:
                    $ref: "#/$defs/types/count_packets"
                time:
                    $ref: "#/$defs/types/time_quantity"
            required:
            - packet
            - time
        value_list_with_unit_and_stats:
            description: >-
                Reusable composite type, multiple values together with their
                unit of measurement and derived statistics.
            type: object
            additionalProperties: false
            properties:
                values:
                    description: >-
                        List of values of the same unit, useful for MRR.
                    type: array
                    minItmes: 1
                    items:
                        description: >-
                            Numeric value, context specified elsewhere. The only
                            assumption is that the value is nonnegative.
                        $ref: "#/$defs/types/nonnegative_number"
                avg:
                    description: >-
                        A derived quantity. It is the arithmetic average of the
                        values list.
                    $ref: "#/$defs/types/nonnegative_number"
                stdev:
                    description: >-
                        A derived quantity. It is the standard deviation for the
                        values list, as computed by jumpavg library.
                    $ref: "#/$defs/types/nonnegative_number"
                unit:
                    description: >-
                        Unit of measurement for the values.
                        Context and allowed values are specified elsewhere.
                    type: string
            required:
            -   values
            -   avg
            -   stdev
            -   unit
        rate_list_without_bandwidth:
            description: >-
                Reusable composite type, multiple rate values.
            allOf:
            -   $ref: "#/$defs/types/value_list_with_unit_and_stats"
            -   properties:
                    values:
                        items:
                            description: >-
                                Unless specified otherwise,
                                this is the aggregated rate
                                (sum of both traffic directions).
                                Depending on the usage, the value can express
                                intended load, offered load, receive rate,
                                and various approximations or estimated bounds
                                thereof.
                    unit:
                        $ref: "#/$defs/types/rate_unit"
        bandwidth_list:
            description: >-
                Reusable composite type, multiple bandwidth values. This is a
                derived quantity.
            allOf:
            -   $ref: "#/$defs/types/value_list_with_unit_and_stats"
            -   properties:
                    values:
                        items:
                            description: >-
                                Unless specified otherwise,
                                this is the aggregated bandwidth
                                (sum of both traffic directions).
                                Depending on the usage, the value can express
                                intended load, offered load, receive rate,
                                and various approximations or estimated bounds
                                thereof.
                    unit:
                        $ref: "#/$defs/types/bandwidth_unit"
        rate_list_with_bandwidth:
            description: >-
                Reusable composite type, joining primary rates
                with optional derived bandwidths (and stats).
                No test types currently computes the bandwidth part.
            type: object
            additionalProperties: false
            properties:
                rate:
                    $ref: "#/$defs/types/rate_list_without_bandwidth"
                bandwidth:
                    $ref: "#/$defs/types/bandwidth_list"
            required:
            - rate
    macros:
        lower_and_maybe_upper_rate:
            type: object
            additionalProperties: false
            properties:
                lower:
                    description: >-
                        The lower bound (or min_rate) for the estimate
                        of a particular searched value.
                    $ref: "#/$defs/types/rate_with_bandwidth"
                upper:
                    description: >-
                        The upper bound (or max_rate) for the estimate
                        of a particular searched value.
                    $ref: "#/$defs/types/rate_with_bandwidth"
            required:
            -   lower
        latency_numbers:
            type: object
            additionalProperties: false
            properties:
                min:
                    description: >-
                        Rounded minimal latency time measured in this trial.
                        See unit property for the unit of measurement.
                    $ref: "#/$defs/types/nonnegative_integer"
                max:
                    description: >-
                        Rounded maximal latency time measured in this trial.
                        See unit property for the unit of measurement.
                        Zero value is not allowed, as that is one of symptoms
                        of Traffic Generator failing to get proper latency.
                    $ref: "#/$defs/types/positive_integer"
                avg:
                    description: >-
                        Rounded average latency time measured in this trial.
                        See unit property for the unit of measurement.
                    $ref: "#/$defs/types/nonnegative_integer"
                hdrh:
                    description: >-
                        Base64-encoded compressed representation of HDRHistogram
                        of all latency sample times encountered
                        in this latency trial.
                        See unit property for the unit of measurement.
                        Note that some bins can be several units wide.
                    type: string
                unit:
                    description: >-
                        Unit of measurement for latency times.
                        Currently a constant, but later versions
                        of the model may allow more values.
                    type: string
                    enum:
                    -   us
            required:
            -   avg
            -   hdrh
            -   max
            -   min
            -   unit
        latency_for_loads:
            type: object
            additionalProperties: false
            properties:
                pdr_0:
                    description: >-
                        Object related to latency measurement performed
                        at minimal rate (currently 9000 pps per direction).
                    $ref: "#/$defs/macros/latency_numbers"
                pdr_10:
                    description: >-
                        Object related to latency measurement performed
                        at 10% of PDR lower bound, if needed rounded up
                        to minimal rate (currently 9000 pps per direction).
                    $ref: "#/$defs/macros/latency_numbers"
                pdr_50:
                    description: >-
                        Object related to latency measurement performed
                        at 50% of PDR lower bound, if needed rounded up
                        to minimal rate (currently 9000 pps per direction).
                    $ref: "#/$defs/macros/latency_numbers"
                pdr_90:
                    description: >-
                        Object related to latency measurement performed
                        at 90% of PDR lower bound, if needed rounded up
                        to minimal rate (currently 9000 pps per direction).
                    $ref: "#/$defs/macros/latency_numbers"
            required:
            -   pdr_0
            -   pdr_10
            -   pdr_50
            -   pdr_90