Merge branch 'master' into isa/arm64

[lunaix-os.git] / lunaix-os / tests / units / device-tree / test-fdt-iter.c

diff --git a/lunaix-os/tests/units/device-tree/test-fdt-iter.c b/lunaix-os/tests/units/device-tree/test-fdt-iter.c
new file mode 100644 (file)
index 0000000..ac53667
--- /dev/null
+++ b/lunaix-os/tests/units/device-tree/test-fdt-iter.c
@@ -0,0 +1,175 @@
+#include "common.h"
+#include <testing/basic.h>
+
+static void
+test_fdt_basic_iter(ptr_t dtb)
+{
+    struct fdt_blob fdt;
+    fdt_loc_t loc;
+    int depth = 0;
+
+    fdt_load(&fdt, dtb);
+    loc = fdt.root;
+
+    testcase("iter-child1", {
+        loc = fdt_next_token(loc, &depth);
+        
+        expect_int(depth, 1);
+        expect_int(loc.token->token, FDT_NOD_BEGIN);
+        expect_str(loc.node->name, "child@1");
+    });
+
+    testcase("iter-child1-prop", {
+        loc = fdt_next_token(loc, &depth);
+        
+        expect_int(depth, 1);
+        expect_true(fdt_prop(loc.token));
+        expect_str(fdt_prop_key(&fdt, loc), "prop-child1");
+    });
+
+    testcase("iter-child1-end", {
+        loc = fdt_next_token(loc, &depth);
+        
+        expect_int(depth, 0);
+        expect_true(fdt_node_end(loc.token));
+    });
+
+    testcase("iter-step-out", {
+        loc = fdt_next_token(loc, &depth);
+        
+        expect_int(depth, -1);
+        expect_true(fdt_node(loc.token));
+        expect_str(loc.node->name, "child@2");
+    });
+}
+
+static void
+test_fdt_sibling_iter(ptr_t dtb)
+{
+    struct fdt_blob fdt;
+    fdt_loc_t loc;
+    int depth = 0;
+
+    fdt_load(&fdt, dtb);
+    loc = fdt.root;
+
+    loc = fdt_descend_into(loc);
+
+    testcase("sibling-iter-1", {
+        expect_int(loc.token->token, FDT_NOD_BEGIN);
+        expect_str(loc.node->name, "child@1");
+    });
+
+    testcase("sibling-iter-2", {
+        expect_true(fdt_next_sibling(loc, &loc));
+
+        expect_int(loc.token->token, FDT_NOD_BEGIN);
+        expect_str(loc.node->name, "child@2");
+    });
+
+    testcase("sibling-iter-3", {
+        expect_true(fdt_next_sibling(loc, &loc));
+
+        expect_int(loc.token->token, FDT_NOD_BEGIN);
+        expect_str(loc.node->name, "child@3");
+    });
+
+    testcase("sibling-iter-3", {
+        expect_false(fdt_next_sibling(loc, &loc));
+
+        expect_true(fdt_node_end(loc.token));
+    });
+}
+
+static void
+test_fdt_descend_ascend(ptr_t dtb)
+{
+    struct fdt_blob fdt;
+    fdt_loc_t loc;
+    int depth = 0;
+
+    fdt_load(&fdt, dtb);
+    loc = fdt.root;
+
+    testcase("descend-to-child1", {
+        loc = fdt_descend_into(loc);
+
+        expect_int(loc.token->token, FDT_NOD_BEGIN);
+        expect_str(loc.node->name, "child@1");
+    });
+
+    testcase("goto-child2", {
+        expect_true(fdt_next_sibling(loc, &loc));
+
+        expect_int(loc.token->token, FDT_NOD_BEGIN);
+        expect_str(loc.node->name, "child@2");
+
+        loc = fdt_descend_into(loc);
+        
+        expect_int(loc.token->token, FDT_PROP);
+        expect_str(fdt_prop_key(&fdt, loc), "prop-child2");
+    });
+
+    testcase("descend-on-prop", {
+        loc = fdt_descend_into(loc);
+
+        expect_true(loc.ptr == loc.ptr);
+        expect_int(loc.token->token, FDT_PROP);
+        expect_str(fdt_prop_key(&fdt, loc), "prop-child2");
+    });
+
+    testcase("descend-to-child21", {
+        expect_true(fdt_next_sibling(loc, &loc));
+
+        expect_int(loc.token->token, FDT_NOD_BEGIN);
+        expect_str(loc.node->name, "child@21");
+    });
+
+    testcase("ascend", {
+        loc = fdt_ascend_from(loc);
+
+        expect_int(loc.token->token, FDT_NOD_BEGIN);
+        expect_str(loc.node->name, "child@3");
+    });
+
+    testcase("ascend-to-root", {
+        loc = fdt_ascend_from(loc);
+
+        expect_true(fdt_node_end(loc.token));
+    });
+}
+
+
+static void
+test_find_prop(ptr_t dtb)
+{
+    struct fdt_blob fdt;
+    fdt_loc_t loc;
+    struct dtp_val val;
+    int depth = 0;
+
+    fdt_load(&fdt, dtb);
+    loc = fdt.root;
+
+    testcase("prop-find-child1", {
+        loc = fdt_descend_into(loc);
+        expect_int(loc.token->token, FDT_NOD_BEGIN);
+        expect_str(loc.node->name, "child@1");
+
+        expect_true(fdt_find_prop(&fdt, loc, "prop-child1", &val));
+        expect_int(val.size, 0);
+
+        expect_false(fdt_find_prop(&fdt, loc, "prop-child2", &val));
+    });
+}
+
+void
+run_test(int argc, const char* argv[])
+{
+    ptr_t dtb = load_fdt();
+
+    test_fdt_basic_iter(dtb);
+    test_fdt_descend_ascend(dtb);
+    test_fdt_sibling_iter(dtb);
+    test_find_prop(dtb);
+}
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