Common: generate original tests for printf

.gitignore

@@ -118,4 +118,6 @@
 /tests/test_pfa
 /tests/test_pfa_assert
 /tests/test_printf
+/tests/test_printf_gen
+/tests/test_printf_gen.c
 /tests/test_units_human

Makefile.am

@@ -16,6 +16,9 @@ libkernaux_a_SOURCES = \
 	src/assert.c \
 	src/libc.c
 
+CLEANFILES = \
+	tests/test_printf_gen.c
+
 if ASM_I386
 libkernaux_a_SOURCES += src/asm/i386.S
 endif
@@ -128,6 +131,12 @@ TESTS += \
 	examples/snprintf \
 	examples/snprintf_va \
 	tests/test_printf
+if ENABLE_TESTS_PYTHON
+TESTS += tests/test_printf_gen
+noinst_SCRIPTS = tests/printf_gen.py
+noinst_DATA = \
+	tests/printf_orig.yml
+endif
 endif
 endif
 
@@ -264,6 +273,13 @@ tests_test_printf_SOURCES = \
 	$(libkernaux_a_SOURCES) \
 	tests/test_printf.c
 
+tests_test_printf_gen_SOURCES = \
+	$(libkernaux_a_SOURCES) \
+	tests/test_printf_gen.c
+
 tests_test_units_human_SOURCES = \
 	$(libkernaux_a_SOURCES) \
 	tests/test_units_human.c
+
+tests/test_printf_gen.c: tests/printf_gen.py tests/printf_orig.yml
+	python3 tests/printf_gen.py

pkgs/ruby/spec/lib/kernaux/sprintf_spec.rb

@@ -11,11 +11,25 @@ RSpec.describe KernAux, '.sprintf' do
     it { is_expected.to eq 'Hello, World!' }
 
     context 'using original tests' do
-      printf_yml = File.expand_path('../../../../../tests/printf.yml', __dir__)
+      printf_yml =
+        File.expand_path('../../../../../tests/printf_orig.yml', __dir__)
 
       YAML.safe_load_file(printf_yml).each do |test|
         expected = test['result']
-        args     = test['args']
+
+        args = test['args'].map do |arg|
+          if arg.is_a? String
+            arg
+          else
+            arg.map do |item|
+              if item.is_a? Array
+                item[0]
+              else
+                item
+              end
+            end
+          end
+        end
 
         it "transforms #{args.inspect} to #{expected.inspect}" do
           expect(described_class.sprintf(*args)).to eq expected

tests/printf_gen.jinja

@@ -0,0 +1,63 @@
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <kernaux/printf.h>
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define BUFFER_SIZE 1024
+
+static const char *const data = "foobar";
+
+static char buffer[BUFFER_SIZE];
+static size_t buffer_index;
+
+static void test_putchar(const char chr, void *const arg)
+{
+    assert(arg == data);
+
+    if (buffer_index >= BUFFER_SIZE) {
+        printf("Buffer overflow!\n");
+        abort();
+    }
+
+    buffer[buffer_index++] = chr;
+}
+
+static void test(const char *const expected, const char *const format, ...)
+{
+    va_list va;
+    int result;
+
+    memset(buffer, '\0', sizeof(buffer));
+    buffer_index = 0;
+    va_start(va, format);
+    result = kernaux_vprintf(test_putchar, (char*)data, format, va);
+    va_end(va);
+    assert((size_t)result == strlen(expected));
+    assert(strcmp(expected, buffer) == 0);
+
+    memset(buffer, '\0', sizeof(buffer));
+    buffer_index = 0;
+    va_start(va, format);
+    result = kernaux_vsnprintf(buffer, sizeof(buffer), format, va);
+    va_end(va);
+    assert((size_t)result == strlen(expected));
+    assert(strcmp(expected, buffer) == 0);
+}
+
+int main()
+{
+    {% for case in cases %}
+    {% if not case.fixme %}
+    printf("%s\n", {{ escape_str(case.result) }});
+    test({{ escape_str(case.result) }}, {{ escape_str(fmt(case.args)) }}{{ values(case.args) }});
+    {% endif %}
+    {% endfor %}
+
+    return 0;
+}

tests/printf_gen.py

@@ -0,0 +1,68 @@
+from jinja2 import Environment, FileSystemLoader
+from os import path
+from yaml import SafeLoader, safe_load
+
+CASES_ORIG_FILENAME = 'printf_orig.yml'
+TEMPLATE_FILENAME   = 'printf_gen.jinja'
+TEST_FILENAME       = 'test_printf_gen.c'
+
+TESTS_DIRPATH = path.dirname(path.abspath(__file__))
+
+CASES_ORIG_FILEPATH = path.join(TESTS_DIRPATH, CASES_ORIG_FILENAME)
+TEST_FILEPATH       = path.join(TESTS_DIRPATH, TEST_FILENAME)
+
+def main():
+    cases_orig = safe_load(open(CASES_ORIG_FILEPATH))
+    cases = cases_orig
+
+    jinja_env = Environment(
+        keep_trailing_newline=True,
+        loader=FileSystemLoader(TESTS_DIRPATH),
+    )
+    jinja_template = jinja_env.get_template(TEMPLATE_FILENAME)
+
+    result = jinja_template.render(
+        cases=cases,
+        escape_str=escape_str,
+        fmt=fmt,
+        values=values,
+    )
+
+    with open(TEST_FILEPATH, 'w') as f:
+        f.write(result)
+
+def escape_char(c):
+    return "'" + c + "'"
+
+def escape_str(s):
+    return '"' + s + '"'
+
+def fmt(args):
+    fmt = ''
+    for arg in args:
+        if type(arg) is list:
+            fmt += arg[0]
+        else:
+            fmt += arg
+    return fmt
+
+def values(args):
+    values = ''
+
+    for arg in args:
+        if type(arg) is list and len(arg) >= 2:
+            if len(arg) >= 3:
+                values += ', ' + str(arg[1])
+                arg[1] = arg[2]
+
+            if type(arg[1]) is str:
+                values += ', ' + escape_str(arg[1])
+            elif type(arg[1]) is list:
+                values += ', ' + escape_char(arg[1][0])
+            else:
+                values += ', ' + str(arg[1])
+
+    return values
+
+if __name__ == '__main__':
+    main()

tests/printf_orig.yml

@@ -67,7 +67,7 @@
 - result: 'EDCB5433'
   args: [['% X', 3_989_525_555]]
 - result: 'x'
-  args: [['% c', 'x']]
+  args: [['% c', ['x']]]
 
 # + flag
 
@@ -110,7 +110,7 @@
 - result: 'EDCB5433'
   args: [['%+X', 3_989_525_555]]
 - result: 'x'
-  args: [['%+c', 'x']]
+  args: [['%+c', ['x']]]
 - result: '+'
   args: [['%+.0d', 0]]
 
@@ -199,6 +199,7 @@
   args: ['Hello testing']
 - result: 'Hello testing'
   args: [['Hello testing%s']]
+  fixme: true
 - result: 'Hello testing'
   args: [['Hello testing%s', '']]
 - result: 'Hello testing'
@@ -259,7 +260,7 @@
 - result: 'EDCB5433'
   args: [['%1X', 3_989_525_555]]
 - result: 'x'
-  args: [['%1c', 'x']]
+  args: [['%1c', ['x']]]
 
 # width 20
 
@@ -290,7 +291,7 @@
 - result: '            EDCB5433'
   args: [['%20X', 3_989_525_555]]
 - result: '                   x'
-  args: [['%20c', 'x']]
+  args: [['%20c', ['x']]]
 
 # width *20
 
@@ -321,7 +322,7 @@
 - result: '            EDCB5433'
   args: [['%*X', 20, 3_989_525_555]]
 - result: '                   x'
-  args: [['%*c', 20, 'x']]
+  args: [['%*c', 20, ['x']]]
 
 # width -20
 
@@ -354,7 +355,7 @@
 - result: 'EDCB5433            '
   args: [['%-20X', 3_989_525_555]]
 - result: 'x                   '
-  args: [['%-20c', 'x']]
+  args: [['%-20c', ['x']]]
 - result: '|    9| |9 | |    9|'
   args: [['|%5d| ', 9],  ['|%-2d|', 9],  [' |%5d|', 9]]
 - result: '|   10| |10| |   10|'
@@ -393,7 +394,7 @@
 - result: 'EDCB5433            '
   args: [['%0-20X', 3_989_525_555]]
 - result: 'x                   '
-  args: [['%0-20c', 'x']]
+  args: [['%0-20c', ['x']]]
 
 # padding 20