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test/e2e: Support logging individual resources' state to stdout #2519

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test/e2e: Support logging individual resources' state to stdout #2519

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25 changes: 25 additions & 0 deletions test/e2e/ctx/ctx.go
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
package ctx

import (
"bytes"
"fmt"
"os"
"os/exec"
Expand Down Expand Up @@ -140,6 +141,30 @@ func (ctx TestContext) DumpNamespaceArtifacts(namespace string) error {
return nil
}

func (ctx TestContext) DescribeResource(command string) error {
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This can be largely be useful to dump out resources (or container logs) when you run into a failed test case:

if CurrentGinkgoTestDescription().Failed {
	ctx.Ctx().DescribeResource(fmt.Sprintf("kubectl get operators %s -o yaml", o.GetName()))
	ctx.Ctx().DescribeResource(fmt.Sprintf("kubectl -n %s logs -l app=olm-operator --tail=50 --prefix --timestamps", *olmNamespace))
}

ctx.Logf("Running command %s", command)
stdout, stderr, err := ctx.ExecCommand(command)
if err != nil {
return fmt.Errorf("failed to run command: %s", strings.TrimSpace(stderr+err.Error()))
}
ctx.Logf("%s", strings.TrimSpace(stdout))
return nil
}

func (ctx TestContext) ExecCommand(command string) (string, string, error) {
var (
stdoutBuf bytes.Buffer
stderrBuf bytes.Buffer
)
cmd := exec.Command("bash", "-c", command)
cmd.Stdout = &stdoutBuf
cmd.Stderr = &stderrBuf
cmd.Env = []string{"KUBECONFIG=" + ctx.kubeconfigPath}

err := cmd.Run()
return stdoutBuf.String(), stderrBuf.String(), err
}

func setDerivedFields(ctx *TestContext) error {
if ctx == nil {
return fmt.Errorf("nil test context")
Expand Down