0.3.0 unit tests: system plugins
This commit is contained in:
Cameron Sparr
@@ -1,6 +1,7 @@
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package system
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import (
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"fmt"
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"testing"
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"github.com/influxdb/telegraf/testutil"
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@@ -52,23 +53,19 @@ func TestCPUStats(t *testing.T) {
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err := cs.Gather(&acc)
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require.NoError(t, err)
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numCPUPoints := len(acc.Points)
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expectedCPUPoints := 10
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assert.Equal(t, expectedCPUPoints, numCPUPoints)
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// Computed values are checked with delta > 0 becasue of floating point arithmatic
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// imprecision
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assertContainsTaggedFloat(t, &acc, "time_user", 3.1, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_system", 8.2, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_idle", 80.1, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_nice", 1.3, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_iowait", 0.2, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_irq", 0.1, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_softirq", 0.11, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_steal", 0.0511, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_guest", 8.1, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_guest_nice", 0.324, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_user", 3.1, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_system", 8.2, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_idle", 80.1, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_nice", 1.3, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_iowait", 0.2, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_irq", 0.1, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_softirq", 0.11, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_steal", 0.0511, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_guest", 8.1, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_guest_nice", 0.324, 0, cputags)
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mps2 := MockPS{}
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mps2.On("CPUTimes").Return([]cpu.CPUTimesStat{cts2}, nil)
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@@ -78,29 +75,74 @@ func TestCPUStats(t *testing.T) {
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err = cs.Gather(&acc)
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require.NoError(t, err)
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numCPUPoints = len(acc.Points) - numCPUPoints
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expectedCPUPoints = 20
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assert.Equal(t, expectedCPUPoints, numCPUPoints)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_user", 11.4, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_system", 10.9, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_idle", 158.8699, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_nice", 2.5, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_iowait", 0.7, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_irq", 1.2, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_softirq", 0.31, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_steal", 0.2812, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_guest", 12.9, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "time_guest_nice", 2.524, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_user", 11.4, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_system", 10.9, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_idle", 158.8699, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_nice", 2.5, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_iowait", 0.7, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_irq", 1.2, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_softirq", 0.31, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_steal", 0.2812, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_guest", 12.9, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "time_guest_nice", 2.524, 0, cputags)
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assertContainsTaggedFloat(t, &acc, "usage_user", 8.3, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "usage_system", 2.7, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "usage_idle", 78.7699, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "usage_nice", 1.2, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "usage_iowait", 0.5, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "usage_irq", 1.1, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "usage_softirq", 0.2, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "usage_steal", 0.2301, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "usage_guest", 4.8, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "usage_guest_nice", 2.2, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "usage_user", 8.3, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "usage_system", 2.7, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "usage_idle", 78.7699, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "usage_nice", 1.2, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "usage_iowait", 0.5, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "usage_irq", 1.1, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "usage_softirq", 0.2, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "usage_steal", 0.2301, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "usage_guest", 4.8, 0.0005, cputags)
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assertContainsTaggedFloat(t, &acc, "cpu", "usage_guest_nice", 2.2, 0.0005, cputags)
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}
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// Asserts that a given accumulator contains a measurment of type float64 with
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// specific tags within a certain distance of a given expected value. Asserts a failure
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// if the measurement is of the wrong type, or if no matching measurements are found
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//
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// Paramaters:
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// t *testing.T : Testing object to use
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// acc testutil.Accumulator: Accumulator to examine
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// measurement string : Name of the measurement to examine
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// expectedValue float64 : Value to search for within the measurement
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// delta float64 : Maximum acceptable distance of an accumulated value
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// from the expectedValue parameter. Useful when
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// floating-point arithmatic imprecision makes looking
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// for an exact match impractical
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// tags map[string]string : Tag set the found measurement must have. Set to nil to
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// ignore the tag set.
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func assertContainsTaggedFloat(
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t *testing.T,
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acc *testutil.Accumulator,
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measurement string,
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field string,
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expectedValue float64,
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delta float64,
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tags map[string]string,
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) {
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var actualValue float64
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for _, pt := range acc.Points {
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if pt.Measurement == measurement {
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for fieldname, value := range pt.Fields {
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if fieldname == field {
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if value, ok := value.(float64); ok {
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actualValue = value
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if (value >= expectedValue-delta) && (value <= expectedValue+delta) {
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// Found the point, return without failing
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return
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}
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} else {
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assert.Fail(t, fmt.Sprintf("Measurement \"%s\" does not have type float64",
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measurement))
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}
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}
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}
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}
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}
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msg := fmt.Sprintf(
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"Could not find measurement \"%s\" with requested tags within %f of %f, Actual: %f",
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measurement, delta, expectedValue, actualValue)
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assert.Fail(t, msg)
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}
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