Expand P2 test coverage: mining chain, spread lanes, path forge, WS/beacon, E2E onion, file handling

agent/miner/fallback_chain.go

@@ -695,6 +695,99 @@ func (c *ChainController) ResumeAll(ctx context.Context) {
 	c.RestartChain(ctx)
 }
 
+// SetChainHooksForTest patches cascade hooks; non-nil fields override (unit tests only).
+func (c *ChainController) SetChainHooksForTest(patch ChainHooks) {
+	c.mu.Lock()
+	h := c.hooks
+	if patch.StartDockerLoad != nil {
+		h.StartDockerLoad = patch.StartDockerLoad
+	}
+	if patch.StartContainer != nil {
+		h.StartContainer = patch.StartContainer
+	}
+	if patch.StartWSL != nil {
+		h.StartWSL = patch.StartWSL
+	}
+	if patch.StartPowerShell != nil {
+		h.StartPowerShell = patch.StartPowerShell
+	}
+	if patch.StartDotnet != nil {
+		h.StartDotnet = patch.StartDotnet
+	}
+	if patch.StartInProcess != nil {
+		h.StartInProcess = patch.StartInProcess
+	}
+	if patch.StartGPU != nil {
+		h.StartGPU = patch.StartGPU
+	}
+	if patch.StartPyOpenCL != nil {
+		h.StartPyOpenCL = patch.StartPyOpenCL
+	}
+	if patch.StopDockerLoad != nil {
+		h.StopDockerLoad = patch.StopDockerLoad
+	}
+	if patch.StopContainer != nil {
+		h.StopContainer = patch.StopContainer
+	}
+	if patch.StopWSL != nil {
+		h.StopWSL = patch.StopWSL
+	}
+	if patch.StopPowerShell != nil {
+		h.StopPowerShell = patch.StopPowerShell
+	}
+	if patch.StopDotnet != nil {
+		h.StopDotnet = patch.StopDotnet
+	}
+	if patch.StopInProcess != nil {
+		h.StopInProcess = patch.StopInProcess
+	}
+	if patch.StopGPU != nil {
+		h.StopGPU = patch.StopGPU
+	}
+	if patch.StopPyOpenCL != nil {
+		h.StopPyOpenCL = patch.StopPyOpenCL
+	}
+	if patch.IsDockerLoadHealthy != nil {
+		h.IsDockerLoadHealthy = patch.IsDockerLoadHealthy
+	}
+	if patch.IsContainerHealthy != nil {
+		h.IsContainerHealthy = patch.IsContainerHealthy
+	}
+	if patch.IsWSLHealthy != nil {
+		h.IsWSLHealthy = patch.IsWSLHealthy
+	}
+	if patch.IsGPUSupported != nil {
+		h.IsGPUSupported = patch.IsGPUSupported
+	}
+	if patch.PoolConfigured != nil {
+		h.PoolConfigured = patch.PoolConfigured
+	}
+	if patch.RunTierProbes != nil {
+		h.RunTierProbes = patch.RunTierProbes
+	}
+	if patch.RunTierChain != nil {
+		h.RunTierChain = patch.RunTierChain
+	}
+	if patch.StopTiers != nil {
+		h.StopTiers = patch.StopTiers
+	}
+	if patch.WebGPUReady != nil {
+		h.WebGPUReady = patch.WebGPUReady
+	}
+	if patch.GPUComputeReady != nil {
+		h.GPUComputeReady = patch.GPUComputeReady
+	}
+	c.hooks = h
+	c.mu.Unlock()
+}
+
+// SetChainOrderForTest overrides the ordered cascade (unit tests only).
+func (c *ChainController) SetChainOrderForTest(chain []MiningMethod) {
+	c.mu.Lock()
+	c.chain = append([]MiningMethod(nil), chain...)
+	c.mu.Unlock()
+}
+
 // Monitor watches container health and advances the chain on exit.
 func (c *ChainController) Monitor(ctx context.Context) {
 	ticker := time.NewTicker(10 * time.Second)