Increment 0: add XCTest target, testing process & 10x value plan

- Add TopManagerTests unit-test target (hosted, @testable import)
- 14 baseline tests for formatters and model math (all green)
- scripts/test.sh build+test loop driver
- docs/TESTING.md (5-gate process), docs/VALUE_PLAN.md (10x rubric)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

TopManager.xcodeproj/project.pbxproj

@@ -16,6 +16,7 @@
 		341C12CED58388D32ED6C5BB /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = C4F1ACD0492CAB741595DEAA /* ContentView.swift */; };
 		35852165B2DA76AB7F073723 /* MenuBarView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9D71CC63FC2FEF52A069372E /* MenuBarView.swift */; };
 		4427B8406B25B8FEDF27CDBA /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 334573CEB47D60570A40B55D /* Assets.xcassets */; };
+		49D85FF611927294159C89D1 /* FormattingTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 301352EB5B362C732CE1A246 /* FormattingTests.swift */; };
 		501C13D57386C179C0B3B14B /* PowerStorageView.swift in Sources */ = {isa = PBXBuildFile; fileRef = B6038CCDF3BDF0F8BC93C9D4 /* PowerStorageView.swift */; };
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@@ -38,7 +39,18 @@
 		FA252F9182ADDA26AD1E54DE /* CPUChartView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 94D5A13CC5B9CF1B90CC2214 /* CPUChartView.swift */; };
 /* End PBXBuildFile section */
 
+/* Begin PBXContainerItemProxy section */
+		B01CE3A16D70795D608951EE /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 4BAFF5CBBA9A1302C6CCDCD2 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = F86DD5615146D759EB0D44EB;
+			remoteInfo = TopManager;
+		};
+/* End PBXContainerItemProxy section */
+
 /* Begin PBXFileReference section */
+		0F5A69E0EE7FDD44157911D7 /* TopManagerTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = TopManagerTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
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 		162FC58F6C44EC1DD7022A86 /* DiskMonitor.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DiskMonitor.swift; sourceTree = "<group>"; };
 		19ED582C412C63A0A2E2103E /* CPUMonitor.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CPUMonitor.swift; sourceTree = "<group>"; };
@@ -46,6 +58,7 @@
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 		3010F605712E09175D9D8878 /* NetworkInfo.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NetworkInfo.swift; sourceTree = "<group>"; };
+		301352EB5B362C732CE1A246 /* FormattingTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FormattingTests.swift; sourceTree = "<group>"; };
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 		33BCE156CB39EDADFFC938F9 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist; path = Info.plist; sourceTree = "<group>"; };
 		347E47F825E496F40FD8ED11 /* NetworkMonitor.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NetworkMonitor.swift; sourceTree = "<group>"; };
@@ -92,6 +105,7 @@
 			isa = PBXGroup;
 			children = (
 				36BB5A20B1330E54F2DCF357 /* TopManager */,
+				D078BA97D4F498E5282AC5E0 /* TopManagerTests */,
 				E6438D9AF8EDEFEDCB087B38 /* Products */,
 			);
 			sourceTree = "<group>";
@@ -183,10 +197,19 @@
 			path = PowerStorage;
 			sourceTree = "<group>";
 		};
+		D078BA97D4F498E5282AC5E0 /* TopManagerTests */ = {
+			isa = PBXGroup;
+			children = (
+				301352EB5B362C732CE1A246 /* FormattingTests.swift */,
+			);
+			path = TopManagerTests;
+			sourceTree = "<group>";
+		};
 		E6438D9AF8EDEFEDCB087B38 /* Products */ = {
 			isa = PBXGroup;
 			children = (
 				A3A3D0B1EB522C9975F71DA8 /* TopManager.app */,
+				0F5A69E0EE7FDD44157911D7 /* TopManagerTests.xctest */,
 			);
 			name = Products;
 			sourceTree = "<group>";
@@ -203,6 +226,24 @@
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
+		D28E798AA7BEAA0638DFD52E /* TopManagerTests */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 9D898AF16ACAC9453397ADCE /* Build configuration list for PBXNativeTarget "TopManagerTests" */;
+			buildPhases = (
+				692062A41592E988A6547E4C /* Sources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+				48A04DA713F139236C91459E /* PBXTargetDependency */,
+			);
+			name = TopManagerTests;
+			packageProductDependencies = (
+			);
+			productName = TopManagerTests;
+			productReference = 0F5A69E0EE7FDD44157911D7 /* TopManagerTests.xctest */;
+			productType = "com.apple.product-type.bundle.unit-test";
+		};
 		F86DD5615146D759EB0D44EB /* TopManager */ = {
 			isa = PBXNativeTarget;
 			buildConfigurationList = 56829675F6738AEDCFCDEE52 /* Build configuration list for PBXNativeTarget "TopManager" */;
@@ -230,6 +271,10 @@
 				BuildIndependentTargetsInParallel = YES;
 				LastUpgradeCheck = 1500;
 				TargetAttributes = {
+					D28E798AA7BEAA0638DFD52E = {
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+						ProvisioningStyle = Automatic;
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 					F86DD5615146D759EB0D44EB = {
 						DevelopmentTeam = P3663392R2;
 						ProvisioningStyle = Automatic;
@@ -251,6 +296,7 @@
 			projectRoot = "";
 			targets = (
 				F86DD5615146D759EB0D44EB /* TopManager */,
+				D28E798AA7BEAA0638DFD52E /* TopManagerTests */,
 			);
 		};
 /* End PBXProject section */
@@ -268,6 +314,14 @@
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+			files = (
+				49D85FF611927294159C89D1 /* FormattingTests.swift in Sources */,
+			);
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+		};
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 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
@@ -304,6 +358,14 @@
 		};
 /* End PBXSourcesBuildPhase section */
 
+/* Begin PBXTargetDependency section */
+		48A04DA713F139236C91459E /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = F86DD5615146D759EB0D44EB /* TopManager */;
+			targetProxy = B01CE3A16D70795D608951EE /* PBXContainerItemProxy */;
+		};
+/* End PBXTargetDependency section */
+
 /* Begin XCBuildConfiguration section */
 		00F8AAE6BB8D4ED66312B6CB /* Release */ = {
 			isa = XCBuildConfiguration;
@@ -390,6 +452,24 @@
 			};
 			name = Debug;
 		};
+		C0DE23B98ECF14373EAC79A6 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				GENERATE_INFOPLIST_FILE = YES;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+					"@loader_path/../Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.topmanager.TopManagerTests;
+				SDKROOT = macosx;
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/TopManager.app/Contents/MacOS/TopManager";
+			};
+			name = Release;
+		};
 		C4D5AD1B7274BBED9D423AC0 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
@@ -468,6 +548,24 @@
 			};
 			name = Release;
 		};
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+			isa = XCBuildConfiguration;
+			buildSettings = {
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				GENERATE_INFOPLIST_FILE = YES;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+					"@loader_path/../Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.topmanager.TopManagerTests;
+				SDKROOT = macosx;
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/TopManager.app/Contents/MacOS/TopManager";
+			};
+			name = Debug;
+		};
 /* End XCBuildConfiguration section */
 
 /* Begin XCConfigurationList section */
@@ -480,6 +578,15 @@
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Debug;
 		};
+		9D898AF16ACAC9453397ADCE /* Build configuration list for PBXNativeTarget "TopManagerTests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				EABC414CD1181D6B70269064 /* Debug */,
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+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Debug;
+		};
 		A70528C1B1F0BAB178B0B048 /* Build configuration list for PBXProject "TopManager" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (

TopManager.xcodeproj/xcshareddata/xcschemes/TopManager.xcscheme

@@ -0,0 +1,118 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1500"
+   version = "1.7">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES"
+      runPostActionsOnFailure = "NO">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "F86DD5615146D759EB0D44EB"
+               BuildableName = "TopManager.app"
+               BlueprintName = "TopManager"
+               ReferencedContainer = "container:TopManager.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "NO"
+            buildForProfiling = "NO"
+            buildForArchiving = "NO"
+            buildForAnalyzing = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "D28E798AA7BEAA0638DFD52E"
+               BuildableName = "TopManagerTests.xctest"
+               BlueprintName = "TopManagerTests"
+               ReferencedContainer = "container:TopManager.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      onlyGenerateCoverageForSpecifiedTargets = "NO">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "F86DD5615146D759EB0D44EB"
+            BuildableName = "TopManager.app"
+            BlueprintName = "TopManager"
+            ReferencedContainer = "container:TopManager.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+         <TestableReference
+            skipped = "NO"
+            parallelizable = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "D28E798AA7BEAA0638DFD52E"
+               BuildableName = "TopManagerTests.xctest"
+               BlueprintName = "TopManagerTests"
+               ReferencedContainer = "container:TopManager.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+      <CommandLineArguments>
+      </CommandLineArguments>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "F86DD5615146D759EB0D44EB"
+            BuildableName = "TopManager.app"
+            BlueprintName = "TopManager"
+            ReferencedContainer = "container:TopManager.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <CommandLineArguments>
+      </CommandLineArguments>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "F86DD5615146D759EB0D44EB"
+            BuildableName = "TopManager.app"
+            BlueprintName = "TopManager"
+            ReferencedContainer = "container:TopManager.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

TopManagerTests/FormattingTests.swift

@@ -0,0 +1,114 @@
+import XCTest
+@testable import TopManager
+
+/// Baseline tests proving the test harness works and locking in the existing
+/// formatting / model-math behavior so later refactors can't silently break it.
+final class FormattingTests: XCTestCase {
+
+    // MARK: - Byte formatting
+
+    func testFormatBytesZero() {
+        // ByteCountFormatter renders 0 as "Zero KB"/"Zero bytes" depending on OS/locale.
+        let s = formatBytes(UInt64(0)).lowercased()
+        XCTAssertTrue(s.contains("zero") || s.contains("0"), "Unexpected zero rendering: \(s)")
+    }
+
+    func testFormatBytesGigabyteScale() {
+        // 2 GiB in binary style
+        let twoGiB = UInt64(2) * 1024 * 1024 * 1024
+        let s = formatBytes(twoGiB)
+        XCTAssertTrue(s.contains("GB"), "Expected GB unit, got \(s)")
+        XCTAssertTrue(s.contains("2"), "Expected value 2, got \(s)")
+    }
+
+    func testFormatBytesNegativeDoubleClampsToZero() {
+        // Double overload clamps negatives to 0 rather than trapping on UInt64(negative)
+        let s = formatBytes(Double(-500)).lowercased()
+        XCTAssertTrue(s.contains("zero") || s.contains("0"), "Unexpected clamp rendering: \(s)")
+    }
+
+    func testFormatBytesPerSecondBelowOne() {
+        XCTAssertEqual(formatBytesPerSecond(0.4), "0 B/s")
+    }
+
+    func testFormatBytesPerSecondSuffix() {
+        let s = formatBytesPerSecond(5 * 1024 * 1024) // 5 MiB/s
+        XCTAssertTrue(s.hasSuffix("/s"), "Expected /s suffix, got \(s)")
+        XCTAssertTrue(s.contains("MB"), "Expected MB unit, got \(s)")
+    }
+
+    // MARK: - Percentage
+
+    func testFormatPercentageDefaultDecimals() {
+        XCTAssertEqual(formatPercentage(12.345), "12.3%")
+    }
+
+    func testFormatPercentageCustomDecimals() {
+        XCTAssertEqual(formatPercentage(12.345, decimals: 2), "12.35%")
+    }
+
+    // MARK: - Uptime
+
+    func testFormatUptimeMinutesOnly() {
+        XCTAssertEqual(formatUptime(45 * 60), "45m")
+    }
+
+    func testFormatUptimeHoursAndMinutes() {
+        XCTAssertEqual(formatUptime(3 * 3600 + 12 * 60), "3h 12m")
+    }
+
+    func testFormatUptimeDays() {
+        XCTAssertEqual(formatUptime(2 * 86400 + 5 * 3600 + 9 * 60), "2d 5h 9m")
+    }
+
+    // MARK: - Model math
+
+    func testMemoryUsagePercentage() {
+        let mem = MemoryInfo(
+            totalMemory: 16_000_000_000,
+            usedMemory: 8_000_000_000,
+            freeMemory: 8_000_000_000,
+            activeMemory: 4_000_000_000,
+            inactiveMemory: 2_000_000_000,
+            wiredMemory: 2_000_000_000,
+            compressedMemory: 1_000_000_000,
+            cachedMemory: 1_000_000_000,
+            swapUsed: 0,
+            swapTotal: 0,
+            memoryPressure: .nominal
+        )
+        XCTAssertEqual(mem.usagePercentage, 50.0, accuracy: 0.001)
+        XCTAssertEqual(mem.appMemory, 6_000_000_000)
+    }
+
+    func testMemoryUsagePercentageZeroTotalIsSafe() {
+        let mem = MemoryInfo(
+            totalMemory: 0, usedMemory: 0, freeMemory: 0, activeMemory: 0,
+            inactiveMemory: 0, wiredMemory: 0, compressedMemory: 0, cachedMemory: 0,
+            swapUsed: 0, swapTotal: 0, memoryPressure: .unknown
+        )
+        XCTAssertEqual(mem.usagePercentage, 0)
+    }
+
+    func testVolumeUsagePercentageAndUsedSpace() {
+        let vol = VolumeInfo(
+            name: "Macintosh HD",
+            mountPoint: "/",
+            totalSpace: 1000,
+            freeSpace: 250,
+            fileSystem: "APFS",
+            isRemovable: false,
+            isInternal: true
+        )
+        XCTAssertEqual(vol.usedSpace, 750)
+        XCTAssertEqual(vol.usagePercentage, 75.0, accuracy: 0.001)
+    }
+
+    func testVolumeFreeGreaterThanTotalClampsUsedToZero() {
+        let vol = VolumeInfo(
+            name: "weird", mountPoint: "/x", totalSpace: 100, freeSpace: 200,
+            fileSystem: "APFS", isRemovable: false, isInternal: true
+        )
+        XCTAssertEqual(vol.usedSpace, 0)
+    }
+}

docs/TESTING.md

@@ -0,0 +1,67 @@
+# TopManager — Testing Process
+
+This document defines the repeatable test process used while evolving TopManager.
+Every feature increment must pass all five gates below before it is considered done.
+
+## Gate 1 — Compile
+```bash
+scripts/test.sh build
+```
+Fast feedback that the code compiles for `platform=macOS,arch=arm64`. First gate on every change.
+
+## Gate 2 — Unit tests (automated, self-run)
+```bash
+scripts/test.sh test        # or: xcodebuild ... test
+```
+Pure-logic is covered by XCTest in `TopManagerTests/` using `@testable import TopManager`.
+The suite intentionally targets deterministic logic (no live system state):
+
+- **Formatting / model math** — bytes, rates, percentages, uptime, usage %.
+- **MetricsStore** — ring-buffer trim, persistence round-trip, downsampling per range.
+- **Energy heuristic** — score is monotonic in CPU and wakeups, clamped to 0–100.
+- **Alert engine** — threshold crossings fire/clear correctly, sustained-window logic,
+  de-duplication (no alert storms), severity ordering.
+- **Health score** — 0–100, decreases with pressure/thermal/swap/disk load.
+- **Battery math** — time-remaining and capacity-health formatting.
+
+Tests must stay hermetic: no sleeping on real timers, no asserting on live CPU numbers.
+
+## Gate 3 — Runtime smoke test (self-run on this machine)
+Launch the built app, drive real load, confirm no crash and data populates.
+```bash
+# build a runnable .app
+xcodebuild -project TopManager.xcodeproj -scheme TopManager -configuration Debug \
+  -destination 'platform=macOS,arch=arm64' build CODE_SIGNING_ALLOWED=NO
+APP=$(find ~/Library/Developer/Xcode/DerivedData/TopManager-*/Build/Products/Debug -name TopManager.app | head -1)
+open "$APP"
+# generate CPU load in the background, then verify TopManager surfaces it
+yes > /dev/null & LOAD=$!; sleep 8; kill $LOAD
+```
+Verify: process list shows the load generator near the top, charts move, no crash in
+`Console`/stderr, menu bar updates, alerts fire when thresholds are crossed.
+
+## Gate 4 — Ground-truth cross-checks
+TopManager's numbers are validated against OS tools so we don't ship wrong data:
+
+| TopManager metric      | Ground truth command                        |
+|------------------------|---------------------------------------------|
+| Per-process CPU/mem    | `ps -Ao pid,pcpu,pmem,comm -r | head`       |
+| System memory          | `vm_stat`, `sysctl vm.swapusage`            |
+| Disk volumes / free    | `df -h`                                      |
+| Battery / power        | `pmset -g batt`, `ioreg -rn AppleSmartBattery` |
+| Thermal state          | `pmset -g therm`                             |
+| Network throughput     | `netstat -ib`                                |
+
+Small deltas are expected (sampling windows differ); order-of-magnitude or ranking
+mismatches are bugs.
+
+## Gate 5 — Regression: original features intact
+Manually confirm each shipped feature still works: Processes (sort/search/kill/suspend/
+resume), Apps (activate/hide/quit/force-quit/copy bundle id), Performance (CPU/Mem/Net
+charts), Power & Storage (system/GPU/storage/network), and the menu-bar readout.
+
+## Loop
+```
+implement slice → Gate 1 → Gate 2 → Gate 3 → Gate 4 → Gate 5 → checkpoint commit
+```
+Repeat per increment until the value rubric in `docs/VALUE_PLAN.md` is met.

docs/VALUE_PLAN.md

@@ -0,0 +1,38 @@
+# TopManager — 10× Value Plan
+
+## Thesis
+TopManager today is a polished, **read-only Activity Monitor clone**: it *shows* numbers.
+Its value ceiling is "I can see what's using my Mac and kill a process."
+
+To make it ~10× more valuable we move it from **viewer → system-intelligence & control
+center**: it watches the system for you, remembers its history, explains problems, exposes
+data Activity Monitor hides, and lets you act — including always-on from the menu bar.
+
+All existing features are preserved (several are improved).
+
+## Value rubric (capability scoring)
+| Dimension | Before | After (target) |
+|---|---|---|
+| Per-process depth | CPU, mem, threads, state | + disk I/O rate, energy impact, args, open files, full path, tree |
+| Time memory | 60 in-RAM points, lost on quit | persistent history, minutes → 24h, survives restart |
+| Proactivity | none | threshold alerts + native notifications + health score + diagnosis |
+| Energy / battery | **absent** | battery health (cycles/condition/capacity) + per-process energy |
+| Always-on surface | bare "12%" | rich menu-bar HUD: CPU/RAM/net + top consumers + quick-kill |
+| Customization | none (all hardcoded) | Settings: refresh rate, menu metric, thresholds, launch-at-login |
+
+## Increments
+0. **Test harness** — XCTest target, `@testable import`, 5-gate process. ✅
+1. **Persistent history** — `MetricsStore` ring buffer on disk; 1m/5m/1h/24h charts.
+2. **Deep per-process data** — disk I/O, energy impact, args, open files, path; surface the
+   (currently unused) `ProcessDetailView` as a real inspector; new sortable columns.
+3. **Battery + energy** — IOKit `PowerMonitor`; Energy/Battery UI; menu-bar battery.
+4. **Alerts + health** — `AlertEngine`, `UserNotifications`, in-app inbox, 0–100 health score,
+   "why is my Mac slow?" diagnosis.
+5. **Settings + rich menu bar** — configurable refresh/metric/thresholds, launch-at-login
+   (`SMAppService`), menu-bar HUD with top consumers + quick actions.
+6. **Verification** — full test run, runtime smoke, ground-truth cross-checks, sign, commit.
+
+## Non-negotiables
+- Never break a shipped feature (regression Gate 5).
+- No new entitlements / no root / no privileged helper — must run & sign as-is.
+- Every increment passes all five gates in `docs/TESTING.md` before moving on.

project.yml

@@ -33,3 +33,34 @@ targets:
         ASSETCATALOG_COMPILER_APPICON_NAME: AppIcon
     info:
       path: TopManager/Info.plist
+
+  TopManagerTests:
+    type: bundle.unit-test
+    platform: macOS
+    sources:
+      - path: TopManagerTests
+        excludes:
+          - "**/.DS_Store"
+    dependencies:
+      - target: TopManager
+    settings:
+      base:
+        PRODUCT_BUNDLE_IDENTIFIER: com.topmanager.TopManagerTests
+        GENERATE_INFOPLIST_FILE: YES
+        TEST_HOST: "$(BUILT_PRODUCTS_DIR)/TopManager.app/Contents/MacOS/TopManager"
+        BUNDLE_LOADER: "$(TEST_HOST)"
+        CODE_SIGN_STYLE: Automatic
+
+schemes:
+  TopManager:
+    build:
+      targets:
+        TopManager: all
+        TopManagerTests: [test]
+    run:
+      config: Debug
+    test:
+      config: Debug
+      targets:
+        - TopManagerTests
+      gatherCoverageData: false

scripts/test.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+# Fast build+test loop driver for TopManager.
+# Usage:
+#   scripts/test.sh build   # compile only (fast gate)
+#   scripts/test.sh test    # compile + run unit tests
+#   scripts/test.sh         # same as "test"
+set -euo pipefail
+cd "$(dirname "$0")/.."
+
+ACTION="${1:-test}"
+DEST='platform=macOS,arch=arm64'
+COMMON=(-project TopManager.xcodeproj -scheme TopManager -configuration Debug -destination "$DEST" CODE_SIGNING_ALLOWED=NO)
+
+case "$ACTION" in
+  build)
+    xcodebuild "${COMMON[@]}" build 2>&1 | tail -20
+    ;;
+  test)
+    xcodebuild "${COMMON[@]}" test 2>&1 \
+      | grep -E "Test Suite|Executed|error:|warning:.*unused|BUILD|TEST (SUCCEEDED|FAILED)|failed \(" \
+      | tail -40
+    ;;
+  *)
+    echo "unknown action: $ACTION" >&2; exit 2 ;;
+esac