test(agentcompat): add evidence validation

Co-authored-by: naiba/CloudCode <hi+cloudcode@nai.ba>

integration/agentcompat/internal/evidence/junit.go

@@ -0,0 +1,46 @@
+package evidence
+
+import "encoding/xml"
+
+type junitSuite struct {
+	XMLName  xml.Name    `xml:"testsuite"`
+	Name     string      `xml:"name,attr"`
+	Tests    int         `xml:"tests,attr"`
+	Failures int         `xml:"failures,attr"`
+	Cases    []junitCase `xml:"testcase"`
+}
+
+type junitCase struct {
+	Name    string        `xml:"name,attr"`
+	Failure *junitFailure `xml:"failure,omitempty"`
+}
+
+type junitFailure struct {
+	Message string `xml:"message,attr"`
+}
+
+func JUnit(results Results) ([]byte, error) {
+	if err := results.Validate(); err != nil {
+		return nil, err
+	}
+	suite := junitSuite{Name: results.Profile, Tests: len(results.Scenarios)}
+	for _, scenario := range results.Scenarios {
+		caseResult := junitCase{Name: scenario.Name}
+		if !scenario.Passed {
+			suite.Failures++
+			caseResult.Failure = &junitFailure{Message: Redact(scenario.Error)}
+		}
+		suite.Cases = append(suite.Cases, caseResult)
+	}
+	return xml.Marshal(suite)
+}
+
+func countFailedScenarios(scenarios []ScenarioResult) int {
+	failed := 0
+	for _, scenario := range scenarios {
+		if !scenario.Passed {
+			failed++
+		}
+	}
+	return failed
+}