1 files changed, 94 insertions, 0 deletions
diff --git a/tests/linux_mtd.c b/tests/linux_mtd.c
new file mode 100644
index 000000000..3aaa5abda
--- /dev/null
+++ b/tests/linux_mtd.c
@@ -0,0 +1,94 @@
+/*
+ * This file is part of the flashrom project.
+ *
+ * Copyright 2021 Google LLC
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include "lifecycle.h"
+
+#if CONFIG_LINUX_MTD == 1
+struct linux_mtd_io_state {
+	char *fopen_path;
+};
+
+static FILE *linux_mtd_fopen(void *state, const char *pathname, const char *mode)
+{
+	struct linux_mtd_io_state *io_state = state;
+
+	io_state->fopen_path = strdup(pathname);
+
+	return not_null();
+}
+
+static size_t linux_mtd_fread(void *state, void *buf, size_t size, size_t len, FILE *fp)
+{
+	struct linux_mtd_fread_mock_entry {
+		const char *path;
+		const char *data;
+	};
+	const struct linux_mtd_fread_mock_entry fread_mock_map[] = {
+		{ "/sys/class/mtd/mtd0//type",            "nor"    },
+		{ "/sys/class/mtd/mtd0//name",            "Device" },
+		{ "/sys/class/mtd/mtd0//flags",           ""       },
+		{ "/sys/class/mtd/mtd0//size",            "1024"   },
+		{ "/sys/class/mtd/mtd0//erasesize",       "512"    },
+		{ "/sys/class/mtd/mtd0//numeraseregions", "0"      },
+	};
+
+	struct linux_mtd_io_state *io_state = state;
+	unsigned int i;
+
+	if (!io_state->fopen_path)
+		return 0;
+
+	for (i = 0; i < ARRAY_SIZE(fread_mock_map); i++) {
+		const struct linux_mtd_fread_mock_entry *entry = &fread_mock_map[i];
+
+		if (!strcmp(io_state->fopen_path, entry->path)) {
+			size_t data_len = min(size * len, strlen(entry->data));
+			memcpy(buf, entry->data, data_len);
+			return data_len;
+		}
+	}
+
+	return 0;
+}
+
+static int linux_mtd_fclose(void *state, FILE *fp)
+{
+	struct linux_mtd_io_state *io_state = state;
+
+	free(io_state->fopen_path);
+
+	return 0;
+}
+
+void linux_mtd_probe_lifecycle_test_success(void **state)
+{
+	struct linux_mtd_io_state linux_mtd_io_state = { NULL };
+	struct io_mock_fallback_open_state linux_mtd_fallback_open_state = {
+		.noc = 0,
+		.paths = { NULL },
+	};
+	const struct io_mock linux_mtd_io = {
+		.state	= &linux_mtd_io_state,
+		.iom_fopen	= linux_mtd_fopen,
+		.iom_fread	= linux_mtd_fread,
+		.iom_fclose = linux_mtd_fclose,
+		.fallback_open_state = &linux_mtd_fallback_open_state,
+	};
+
+	run_probe_lifecycle(state, &linux_mtd_io, &programmer_linux_mtd, "", "Opaque flash chip");
+}
+#else
+	SKIP_TEST(linux_mtd_probe_lifecycle_test_success)
+#endif /* CONFIG_LINUX_MTD */