From c9f4919e2755f4d4a6f0a6431fb310c977adaa7a Mon Sep 17 00:00:00 2001
From: Kevin Day <thekevinday@gmail.com>
Date: Thu, 24 Nov 2022 19:11:29 -0600
Subject: [PATCH] Update: Fix and improve FSS unit test regarding zero-width.

Recent changes to the Unicode functions regarding zero-width improved or changed how what is designated as a zero-width character.
The test is failing due to this change.

Update the test to treat the tested character as zero-width.
Add an additional test condition to test the stop range.
---
 .../f_fss/tests/unit/c/test-fss-is_zero_width.c    | 40 ++++++++++++----------
 1 file changed, 22 insertions(+), 18 deletions(-)

diff --git a/level_0/f_fss/tests/unit/c/test-fss-is_zero_width.c b/level_0/f_fss/tests/unit/c/test-fss-is_zero_width.c
index b7a9adc..75664ae 100644
--- a/level_0/f_fss/tests/unit/c/test-fss-is_zero_width.c
+++ b/level_0/f_fss/tests/unit/c/test-fss-is_zero_width.c
@@ -21,7 +21,9 @@ void test__f_fss_is_zero_width__works(void **state) {
     macro_f_string_static_t_initialize("$", 0, 1),
     macro_f_string_static_t_initialize(".", 0, 1),
     macro_f_string_static_t_initialize(" ́", 0, 3), // Space followed by a combining character (U+0020 U+0301).
+    macro_f_string_static_t_initialize(" ॐ", 0, 5), // Space followed by a printing character (U+0020 U+0061).
     macro_f_string_static_t_initialize("​", 0, 3), // Zero-width space (U+200B).
+    macro_f_string_static_t_initialize("a b", 0, 3),
   };
 
   f_status_t expects[] = {
@@ -35,31 +37,33 @@ void test__f_fss_is_zero_width__works(void **state) {
     F_false,
     F_false,
     F_false,
+    F_true,
     F_false,
     F_true,
+    F_false,
   };
 
-  // Apply an offset so that the combining character is combining into something inside the quotes rather than the quotes for convenience and code safety.
-  f_array_length_t offset[] = {
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    1,
-    0,
+  // Use range to designate which part of a string is to be tested.
+  f_string_range_t ranges[] = {
+    { .start = 0, .stop = tests[0].used },
+    { .start = 0, .stop = tests[1].used },
+    { .start = 0, .stop = tests[2].used },
+    { .start = 0, .stop = tests[3].used },
+    { .start = 0, .stop = tests[4].used },
+    { .start = 0, .stop = tests[5].used },
+    { .start = 0, .stop = tests[6].used },
+    { .start = 0, .stop = tests[7].used },
+    { .start = 0, .stop = tests[8].used },
+    { .start = 0, .stop = tests[9].used },
+    { .start = 1, .stop = tests[10].used },
+    { .start = 1, .stop = tests[11].used },
+    { .start = 0, .stop = tests[12].used },
+    { .start = 1, .stop = 1 },
   };
 
-  for (f_array_length_t i = 0; i < 12; ++i) {
-
-    const f_string_range_t range = macro_f_string_range_t_initialize(offset[i], tests[i].used - 1);
+  for (f_array_length_t i = 0; i < 14; ++i) {
 
-    const f_status_t status = f_fss_is_zero_width(state_data, tests[i], range);
+    const f_status_t status = f_fss_is_zero_width(state_data, tests[i], ranges[i]);
 
     assert_int_equal(status, expects[i]);
   } // for
-- 
1.8.3.1