Implement undo

This also fixes a bunch of valgrind errors

1 files changed, 20 insertions, 16 deletions

diff --git a/test/text.c b/test/text.c
index 9c8d825..cb18df5 100644
--- a/test/text.c
+++ b/test/text.c
@@ -8,6 +8,10 @@
 #include <string.h>
 #include <wchar.h>
 
+void assert_line_eq(struct text_chunk line, const char *txt, const char *msg) {
+  ASSERT(strncmp((const char *)line.text, txt, line.nbytes) == 0, msg);
+}
+
 void assert_line_equal(struct text_chunk *line) {}
 
 void test_add_text() {
@@ -24,16 +28,16 @@ void test_add_text() {
 
   ASSERT(text_line_size(t, 0) == 14 && text_line_length(t, 0) == 14,
          "Expected line 1 to have 14 chars and 14 bytes");
-  ASSERT_STR_EQ((const char *)text_get_line(t, 0).text, "This is line 1",
-                "Expected line 1 to be line 1");
+  assert_line_eq(text_get_line(t, 0), "This is line 1",
+                 "Expected line 1 to be line 1");
 
   const char *txt2 = "This is line 2\n";
   text_insert_at(t, 1, 0, (uint8_t *)txt2, strlen(txt2), &lines_added,
                  &cols_added);
   ASSERT(text_num_lines(t) == 2,
          "Expected text to have two lines after second insertion");
-  ASSERT_STR_EQ((const char *)text_get_line(t, 1).text, "This is line 2",
-                "Expected line 2 to be line 2");
+  assert_line_eq(text_get_line(t, 1), "This is line 2",
+                 "Expected line 2 to be line 2");
 
   // simulate indentation
   const char *txt3 = "    ";
@@ -41,19 +45,18 @@ void test_add_text() {
                  &cols_added);
   ASSERT(text_num_lines(t) == 2,
          "Expected text to have two lines after second insertion");
-  ASSERT_STR_EQ((const char *)text_get_line(t, 0).text, "    This is line 1",
-                "Expected line 1 to be indented");
-  ASSERT_STR_EQ((const char *)text_get_line(t, 1).text, "This is line 2",
-                "Expected line 2 to be line 2 still");
+  assert_line_eq(text_get_line(t, 0), "    This is line 1",
+                 "Expected line 1 to be indented");
+  assert_line_eq(text_get_line(t, 1), "This is line 2",
+                 "Expected line 2 to be line 2 still");
 
   // insert newline in middle of line
   text_insert_at(t, 1, 4, (uint8_t *)"\n", 1, &lines_added, &cols_added);
   ASSERT(text_num_lines(t) == 3,
          "Expected text to have three lines after inserting a new line");
-  ASSERT_STR_EQ((const char *)text_get_line(t, 1).text, "This",
-                "Expected line 2 to be split");
-  ASSERT_STR_EQ((const char *)text_get_line(t, 2).text, " is line 2",
-                "Expected line 2 to be split");
+  assert_line_eq(text_get_line(t, 1), "This", "Expected line 2 to be split");
+  assert_line_eq(text_get_line(t, 2), " is line 2",
+                 "Expected line 2 to be split");
 
   // insert newline before line 1
   text_insert_at(t, 1, 0, (uint8_t *)"\n", 1, &lines_added, &cols_added);
@@ -61,10 +64,10 @@ void test_add_text() {
       text_num_lines(t) == 4,
       "Expected to have four lines after adding an empty line in the middle");
   ASSERT(text_line_length(t, 1) == 0, "Expected line 2 to be empty");
-  ASSERT_STR_EQ((const char *)text_get_line(t, 2).text, "This",
-                "Expected line 3 to be previous line 2");
-  ASSERT_STR_EQ((const char *)text_get_line(t, 3).text, " is line 2",
-                "Expected line 4 to be previous line 3");
+  assert_line_eq(text_get_line(t, 2), "This",
+                 "Expected line 3 to be previous line 2");
+  assert_line_eq(text_get_line(t, 3), " is line 2",
+                 "Expected line 4 to be previous line 3");
 
   text_destroy(t);
 }
@@ -151,6 +154,7 @@ void test_delete_text() {
   text_destroy(t);
   text_destroy(t2);
   text_destroy(t3);
+  text_destroy(t4);
 }
 
 void run_text_tests() {