Mikkel Georgsen
11aea60aee
- TesterDriver interface: Connect/Read/Disconnect - StreamingTesterDriver interface: embeds TesterDriver, adds Stream() - TestResult struct: CableType, versions, speed, power, continuity, eMarker, resistance - LiveReading struct: Voltage, CurrentAmps, PowerWatts, PDProtocol, Timestamp - MockUSBDriver: deterministic USB 3.2 Gen 2 result, ErrNotConnected guard - MockDPDriver: deterministic DP 1.4 result - MockHDMIDriver: deterministic HDMI 2.1 result - MockFNB58Driver: 3 LiveReading samples at 100ms, context-cancelled via Disconnect() - KnownDevices: 4 RoleCableTester placeholder entries (dead0:0001-0004)
59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
package tester
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import (
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"errors"
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"time"
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)
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// ErrNotConnected is returned by Read() when Connect() has not been called.
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var ErrNotConnected = errors.New("tester: not connected — call Connect() first")
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// CableType identifies the physical cable standard being tested.
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type CableType int
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const (
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CableTypeUSB CableType = iota
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CableTypeDP
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CableTypeHDMI
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)
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// TestResult captures all measurements from a single cable test run.
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type TestResult struct {
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CableType CableType
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USBVersion string
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DPVersion string
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HDMIVersion string
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SpeedGbps float64
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MaxWatts int
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PinContinuity bool
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HasEMarker bool
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ResistanceOhm float64
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}
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// LiveReading is a single sample from a streaming power/protocol meter (e.g. FNB58).
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type LiveReading struct {
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Voltage float64
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CurrentAmps float64
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PowerWatts float64
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PDProtocol string
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Timestamp time.Time
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}
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// TesterDriver is the common interface for all discrete cable testers.
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// Connect must be called before Read.
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// Disconnect is idempotent.
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type TesterDriver interface {
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Connect() error
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Read() (TestResult, error)
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Disconnect() error
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}
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// StreamingTesterDriver extends TesterDriver for devices that continuously
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// emit live power/protocol readings (e.g. FNIRSI FNB58).
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// Stream() returns a read-only channel that emits LiveReading values and is
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// closed when the stream ends or Disconnect() is called.
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// Calling Stream() before Connect() returns a pre-closed channel.
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type StreamingTesterDriver interface {
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TesterDriver
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Stream() <-chan LiveReading
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}
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