From 8737272f80feb3d3c477e984568790008f2d6bc0 Mon Sep 17 00:00:00 2001
From: mo khan <mo.khan@gmail.com>
Date: Mon, 7 Sep 2020 13:55:54 -0600
Subject: feat: add function to init vertex

---
 src/03/graph.c      | 7 +++++++
 src/03/graph.h      | 5 +++++
 src/03/graph_test.c | 6 ++++++
 3 files changed, 18 insertions(+)

(limited to 'src')

diff --git a/src/03/graph.c b/src/03/graph.c
index e8b6b5e..ed244ba 100644
--- a/src/03/graph.c
+++ b/src/03/graph.c
@@ -1 +1,8 @@
 #include "graph.h"
+#include <stdlib.h>
+
+Vertex *graph_initialize(char label) {
+  Vertex *item = malloc(sizeof(Vertex));
+  item->label = label;
+  return item;
+};
diff --git a/src/03/graph.h b/src/03/graph.h
index e69de29..26fb7c6 100644
--- a/src/03/graph.h
+++ b/src/03/graph.h
@@ -0,0 +1,5 @@
+typedef struct {
+  char label;
+} Vertex;
+
+Vertex *graph_initialize(char label);
diff --git a/src/03/graph_test.c b/src/03/graph_test.c
index fca7b45..ecc47bb 100644
--- a/src/03/graph_test.c
+++ b/src/03/graph_test.c
@@ -6,6 +6,12 @@ Ensure(three_equals_three) {
   assert_that(3, is_equal_to(3));
 }
 
+Ensure(initialize_returns_a_new_vertex) {
+  Vertex *a = graph_initialize('a');
+
+  assert_that(a, is_not_equal_to(NULL));
+}
+
 TestSuite *graph_tests() {
   TestSuite *x = create_test_suite();
 
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