Add pt-galera-log-explainer

src/go/pt-galera-log-explainer/regex/file_test.go

@@ -0,0 +1,47 @@
+package regex
+
+import (
+	"testing"
+)
+
+func TestFileType(t *testing.T) {
+	tests := []struct {
+		inputline     string
+		inputoperator bool
+		expected      string
+	}{
+		{
+			inputline:     `{"log":"2023-07-11T06:03:51.109165Z 0 [Note] [MY-010747] [Server] Plugin 'FEDERATED' is disabled.\n","file":"/var/lib/mysql/wsrep_recovery_verbose.log"}`,
+			inputoperator: true,
+			expected:      "recovery.log",
+		},
+		{
+			inputline:     `{"log":"2023-07-11T06:03:51.109165Z 0 [Note] [MY-010747] [Server] Plugin 'FEDERATED' is disabled.\n","file":"/var/lib/mysql/mysqld-error.log"}`,
+			inputoperator: true,
+			expected:      "error.log",
+		},
+		{
+			inputline:     `{"log":"2023-07-11T06:03:51.109165Z 0 [Note] [MY-010747] [Server] Plugin 'FEDERATED' is disabled.\n","file":"/var/lib/mysql/mysqld.post.processing.log"}`,
+			inputoperator: true,
+			expected:      "post.processing.log",
+		},
+		{
+			inputline:     `+ NODE_PORT=3306`,
+			inputoperator: true,
+			expected:      "operator shell",
+		},
+		{
+			inputline:     `++ hostname -f`,
+			inputoperator: true,
+			expected:      "operator shell",
+		},
+	}
+
+	for _, test := range tests {
+
+		out := FileType(test.inputline, test.inputoperator)
+		if out != test.expected {
+			t.Errorf("expected: %s, got: %s", test.expected, out)
+		}
+	}
+}