Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
of: unittest: Check tree matches original after reverting a changeset
Enhance the changeset unittest to ensure after a revert, the tree matches
the original tree before the changeset was applied. Specifically, check an
added node is removed, a removed property is added back, and an updated
property has its original value.
Signed-off-by: Rob Herring <robh@kernel.org>
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drivers/of/unittest.c
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drivers/of/unittest.c
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static void __init of_unittest_changeset(void)
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{
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#ifdef CONFIG_OF_DYNAMIC
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int ret;
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struct property *ppadd, padd = { .name = "prop-add", .length = 1, .value = "" };
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struct property *ppname_n1, pname_n1 = { .name = "name", .length = 3, .value = "n1" };
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struct property *ppname_n2, pname_n2 = { .name = "name", .length = 3, .value = "n2" };
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static const char * const str_array[] = { "str1", "str2", "str3" };
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const u32 u32_array[] = { 1, 2, 3 };
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struct of_changeset chgset;
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const char *propstr = NULL;
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n1 = __of_node_dup(NULL, "n1");
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unittest(n1, "testcase setup failure\n");
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of_node_put(np);
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unittest(!of_changeset_revert(&chgset), "revert failed\n");
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unittest(!of_find_node_by_path("/testcase-data/changeset/n2/n21"),
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"'%pOF' still present after revert\n", n21);
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ppremove = of_find_property(parent, "prop-remove", NULL);
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unittest(ppremove, "failed to find removed prop after revert\n");
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ret = of_property_read_string(parent, "prop-update", &propstr);
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unittest(!ret, "failed to find updated prop after revert\n");
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if (!ret)
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unittest(strcmp(propstr, "hello") == 0, "original value not in updated property after revert");
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of_changeset_destroy(&chgset);
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