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implemented 09-system-metrics.md: added system metrics: introduced system monitoring with a metrics collector, REST API endpoint, Thymeleaf UI rendering, and lifecycle management

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Michael Hoennig
2026-07-07 12:55:11 +02:00
parent 67c9f0ade9
commit a6a2c9de0b
21 changed files with 1069 additions and 6 deletions
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src/test/kotlin/de/hoennig/gittally/server/UiControllerTest.kt
+53 -1
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@@ -11,6 +11,9 @@ import de.hoennig.gittally.config.ConfigLoader
import de.hoennig.gittally.config.GitTallyConfig
import de.hoennig.gittally.config.GiteaConfig
import de.hoennig.gittally.config.ServerConfig
import de.hoennig.gittally.metrics.MetricAggregate
import de.hoennig.gittally.metrics.SystemMetrics
import de.hoennig.gittally.metrics.SystemMetricsCollector
import io.kotest.core.spec.style.FunSpec
import io.mockk.clearMocks
import io.mockk.every
@@ -49,8 +52,27 @@ class UiControllerTest : FunSpec() {
@MockkBean
lateinit var configLoader: ConfigLoader
@MockkBean
lateinit var metricsCollector: SystemMetricsCollector
private val startedAt = Instant.parse("2026-07-07T10:00:00Z")
private val emptySystemMetrics =
SystemMetrics(
timestamp = null,
sampleCount = 0,
cpuCount = 8,
ramTotalGib = null,
diskTotalGib = null,
cpuUsed = null,
cpuIdle = null,
ramUsedGib = null,
ramFreeGib = null,
diskUsedGib = null,
diskFreeGib = null,
repoSizeGib = null,
)
private val successResult =
BuildResult(
branch = "main",
@@ -63,7 +85,7 @@ class UiControllerTest : FunSpec() {
init {
beforeEach {
clearMocks(repository, buildExecutor, artifactStore, controlTokens, configLoader)
clearMocks(repository, buildExecutor, artifactStore, controlTokens, configLoader, metricsCollector)
every { configLoader.load(any()) } returns
GitTallyConfig(
server = ServerConfig(impressumUrl = "https://example.org/imprint"),
@@ -191,6 +213,36 @@ class UiControllerTest : FunSpec() {
.andExpect(status().isNotFound)
}
test("system view renders metric rows, totals, and the polling hook") {
every { metricsCollector.snapshot() } returns
emptySystemMetrics.copy(
timestamp = Instant.parse("2026-07-07T10:00:00Z"),
sampleCount = 5,
ramTotalGib = 32.0,
cpuUsed = MetricAggregate(current = 1.0, min = 0.5, max = 2.0, avg = 1.25),
)
mockMvc
.perform(get("/system"))
.andExpect(status().isOk)
.andExpect(content().string(containsString("""data-api="/api/system"""")))
.andExpect(content().string(containsString("""data-metric="cpuUsed"""")))
.andExpect(content().string(containsString("CPU used (cores)")))
.andExpect(content().string(containsString("1.25")))
.andExpect(content().string(containsString("8 cores")))
.andExpect(content().string(containsString("32.00 GiB")))
}
test("system view renders n/a for unavailable metrics") {
every { metricsCollector.snapshot() } returns emptySystemMetrics
mockMvc
.perform(get("/system"))
.andExpect(status().isOk)
.andExpect(content().string(containsString("Repo size (GiB)")))
.andExpect(content().string(containsString("n/a")))
}
test("branch names with HTML metacharacters render escaped") {
val nasty = "feat/<script>alert('x')</script>"
every { repository.latestPerBranch() } returns listOf(successResult.copy(branch = nasty))