diff --git a/exercises/practice/resistor-color-trio/.meta/tests.toml b/exercises/practice/resistor-color-trio/.meta/tests.toml
index beabab3df..b7d45fa5d 100644
--- a/exercises/practice/resistor-color-trio/.meta/tests.toml
+++ b/exercises/practice/resistor-color-trio/.meta/tests.toml
@@ -1,6 +1,13 @@
-# This is an auto-generated file. Regular comments will be removed when this
-# file is regenerated. Regenerating will not touch any manually added keys,
-# so comments can be added in a "comment" key.
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
 
 [d6863355-15b7-40bb-abe0-bfb1a25512ed]
 description = "Orange and orange and black"
@@ -16,3 +23,18 @@ description = "Green and brown and orange"
 
 [f5d37ef9-1919-4719-a90d-a33c5a6934c9]
 description = "Yellow and violet and yellow"
+
+[5f6404a7-5bb3-4283-877d-3d39bcc33854]
+description = "Blue and violet and blue"
+
+[7d3a6ab8-e40e-46c3-98b1-91639fff2344]
+description = "Minimum possible value"
+
+[ca0aa0ac-3825-42de-9f07-dac68cc580fd]
+description = "Maximum possible value"
+
+[0061a76c-903a-4714-8ce2-f26ce23b0e09]
+description = "First two colors make an invalid octal number"
+
+[30872c92-f567-4b69-a105-8455611c10c4]
+description = "Ignore extra colors"
diff --git a/exercises/practice/resistor-color-trio/test_resistor_color_trio.c b/exercises/practice/resistor-color-trio/test_resistor_color_trio.c
index 1b641c86b..df44bbd25 100644
--- a/exercises/practice/resistor-color-trio/test_resistor_color_trio.c
+++ b/exercises/practice/resistor-color-trio/test_resistor_color_trio.c
@@ -52,6 +52,51 @@ static void test_yellow_violet_yellow(void)
    TEST_ASSERT_EQUAL(KILOOHMS, actual.unit);
 }
 
+static void test_blue_violet_blue(void)
+{
+   TEST_IGNORE();
+   resistor_value_t actual =
+       color_code((resistor_band_t[]){ BLUE, VIOLET, BLUE });
+   TEST_ASSERT_EQUAL_UINT16(67, actual.value);
+   TEST_ASSERT_EQUAL(MEGAOHMS, actual.unit);
+}
+
+static void test_minimum_possible_value(void)
+{
+   TEST_IGNORE();
+   resistor_value_t actual =
+       color_code((resistor_band_t[]){ BLACK, BLACK, BLACK });
+   TEST_ASSERT_EQUAL_UINT16(0, actual.value);
+   TEST_ASSERT_EQUAL(OHMS, actual.unit);
+}
+
+static void test_maximum_possible_value(void)
+{
+   TEST_IGNORE();
+   resistor_value_t actual =
+       color_code((resistor_band_t[]){ WHITE, WHITE, WHITE });
+   TEST_ASSERT_EQUAL_UINT16(99, actual.value);
+   TEST_ASSERT_EQUAL(GIGAOHMS, actual.unit);
+}
+
+static void test_invalid_octal(void)
+{
+   TEST_IGNORE();
+   resistor_value_t actual =
+       color_code((resistor_band_t[]){ BLACK, GREY, BLACK });
+   TEST_ASSERT_EQUAL_UINT16(8, actual.value);
+   TEST_ASSERT_EQUAL(OHMS, actual.unit);
+}
+
+static void test_ignore_extra_colors(void)
+{
+   TEST_IGNORE();
+   resistor_value_t actual =
+       color_code((resistor_band_t[]){ BLUE, GREEN, YELLOW, ORANGE });
+   TEST_ASSERT_EQUAL_UINT16(650, actual.value);
+   TEST_ASSERT_EQUAL(KILOOHMS, actual.unit);
+}
+
 int main(void)
 {
    UnityBegin("test_resistor_color_trio.c");
@@ -61,6 +106,11 @@ int main(void)
    RUN_TEST(test_red_black_red);
    RUN_TEST(test_green_brown_orange);
    RUN_TEST(test_yellow_violet_yellow);
+   RUN_TEST(test_blue_violet_blue);
+   RUN_TEST(test_minimum_possible_value);
+   RUN_TEST(test_maximum_possible_value);
+   RUN_TEST(test_invalid_octal);
+   RUN_TEST(test_ignore_extra_colors);
 
    return UnityEnd();
 }