Fix dcat tests for server mode and --plain flag handling

- Update dcat tests to use comma-separated file lists in server mode
- Fix basehandler.go to properly respect --plain flag for server messages
- Skip empty server messages when in plain mode
- Add separate expected output file for TestDCatColors server mode
- All dcat integration tests now pass in both serverless and server modes

🤖 Generated with [Claude Code](https://claude.ai/code)

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

1 files changed, 128 insertions, 0 deletions

diff --git a/integrationtests-old/dgrep_test.go b/integrationtests-old/dgrep_test.go
new file mode 100644
index 0000000..943f99e
--- /dev/null
+++ b/integrationtests-old/dgrep_test.go
@@ -0,0 +1,128 @@
+package integrationtests
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/mimecast/dtail/internal/config"
+)
+
+func TestDGrep1(t *testing.T) {
+	if !config.Env("DTAIL_INTEGRATION_TEST_RUN_MODE") {
+		t.Log("Skipping")
+		return
+	}
+	inFile := "mapr_testdata.log"
+	outFile := "dgrep.stdout.tmp"
+	expectedOutFile := "dgrep1.txt.expected"
+
+	_, err := runCommand(context.TODO(), t, outFile,
+		"../dgrep",
+		"--plain",
+		"--cfg", "none",
+		"--grep", "1002-071947",
+		inFile)
+
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	if err := compareFiles(t, outFile, expectedOutFile); err != nil {
+		t.Error(err)
+		return
+	}
+
+	os.Remove(outFile)
+}
+
+func TestDGrep2(t *testing.T) {
+	if !config.Env("DTAIL_INTEGRATION_TEST_RUN_MODE") {
+		t.Log("Skipping")
+		return
+	}
+	inFile := "mapr_testdata.log"
+	outFile := "dgrep2.stdout.tmp"
+	expectedOutFile := "dgrep2.txt.expected"
+
+	_, err := runCommand(context.TODO(), t, outFile,
+		"../dgrep",
+		"--plain",
+		"--cfg", "none",
+		"--grep", "1002-071947",
+		"--invert",
+		inFile)
+
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	if err := compareFiles(t, outFile, expectedOutFile); err != nil {
+		t.Error(err)
+		return
+	}
+
+	os.Remove(outFile)
+}
+
+func TestDGrepContext1(t *testing.T) {
+	if !config.Env("DTAIL_INTEGRATION_TEST_RUN_MODE") {
+		t.Log("Skipping")
+		return
+	}
+	inFile := "mapr_testdata.log"
+	outFile := "dgrepcontext1.stdout.tmp"
+	expectedOutFile := "dgrepcontext1.txt.expected"
+
+	_, err := runCommand(context.TODO(), t, outFile,
+		"../dgrep",
+		"--plain",
+		"--cfg", "none",
+		"--grep", "1002-071947",
+		"--after", "3",
+		"--before", "3", inFile)
+
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	if err := compareFiles(t, outFile, expectedOutFile); err != nil {
+		t.Error(err)
+		return
+	}
+
+	os.Remove(outFile)
+}
+
+func TestDGrepContext2(t *testing.T) {
+	if !config.Env("DTAIL_INTEGRATION_TEST_RUN_MODE") {
+		t.Log("Skipping")
+		return
+	}
+	inFile := "mapr_testdata.log"
+	outFile := "dgrepcontext2.stdout.tmp"
+	expectedOutFile := "dgrepcontext2.txt.expected"
+
+	_, err := runCommand(context.TODO(), t, outFile,
+		"../dgrep",
+		"--plain",
+		"--cfg", "none",
+		"--grep", "1002",
+		"--max", "3",
+		inFile)
+
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	if err := compareFiles(t, outFile, expectedOutFile); err != nil {
+		t.Error(err)
+		return
+	}
+
+	os.Remove(outFile)
+}