chore: add pem testcase

Author: afham123

pkg/postprocess/pem_test.go

@@ -0,0 +1,37 @@
+package postprocess
+
+import "testing"
+
+func TestIsPem(t *testing.T) {
+	type args struct {
+		cc string
+	}
+	tests := []struct {
+		name     string
+		text     []byte
+		isSecret bool
+	}{
+		{
+			"Invalid private pem file",
+			[]byte("Random Binary Data"),
+			false,
+		},
+		{
+			"Invalid private pem file",
+			[]byte("This is not a pem file."),
+			false,
+		},
+		{
+			"Invalid private pem file",
+			[]byte("Non-pem File"),
+			false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := IsPrivatePem(tt.text); got != tt.isSecret {
+				t.Errorf("TestIsPem() = %v, want %v", got, tt.isSecret)
+			}
+		})
+	}
+}