Add trivial tests for fnmatch(3).
These cover the parts of fnmatch() that I think I understand. Missing
FNM_LEADING_DIR because I still haven't understood that yet. All the
descriptions of its behavior that I've seen are slightly (or very)
inconsistent, and it seems like the implementations are genuinely
different too.
Test: treehugger
Change-Id: I1284c406639bef1bfe74db3cad45965c8ab29c2b
diff --git a/tests/fnmatch_test.cpp b/tests/fnmatch_test.cpp
new file mode 100644
index 0000000..d28aefa
--- /dev/null
+++ b/tests/fnmatch_test.cpp
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <gtest/gtest.h>
+
+#include <fnmatch.h>
+
+TEST(fnmatch, basic) {
+ EXPECT_EQ(0, fnmatch("abc", "abc", 0));
+ EXPECT_EQ(FNM_NOMATCH, fnmatch("abc", "abd", 0));
+}
+
+TEST(fnmatch, casefold) {
+ EXPECT_EQ(FNM_NOMATCH, fnmatch("abc", "aBc", 0));
+ EXPECT_EQ(0, fnmatch("abc", "aBc", FNM_CASEFOLD));
+}
+
+TEST(fnmatch, character_class) {
+ // Literal.
+ EXPECT_EQ(0, fnmatch("ab[cd]", "abc", 0));
+ EXPECT_EQ(0, fnmatch("ab[cd]", "abd", 0));
+ EXPECT_EQ(FNM_NOMATCH, fnmatch("ab[cd]", "abe", 0));
+
+ // Inverted literal.
+ EXPECT_EQ(FNM_NOMATCH, fnmatch("ab[^cd]", "abc", 0));
+ EXPECT_EQ(FNM_NOMATCH, fnmatch("ab[^cd]", "abd", 0));
+ EXPECT_EQ(0, fnmatch("ab[^cd]", "abe", 0));
+
+ // Range.
+ EXPECT_EQ(0, fnmatch("a[0-9]b", "a0b", 0));
+ EXPECT_EQ(FNM_NOMATCH, fnmatch("a[0-9]b", "aOb", 0));
+
+ // Inverted range.
+ EXPECT_EQ(0, fnmatch("a[^0-9]b", "aOb", 0));
+ EXPECT_EQ(FNM_NOMATCH, fnmatch("a[^0-9]b", "a0b", 0));
+
+ // Named.
+ EXPECT_EQ(0, fnmatch("a[[:digit:]]b", "a0b", 0));
+ EXPECT_EQ(FNM_NOMATCH, fnmatch("a[[:digit:]]b", "aOb", 0));
+
+ // Inverted named.
+ EXPECT_EQ(FNM_NOMATCH, fnmatch("a[^[:digit:]]b", "a0b", 0));
+ EXPECT_EQ(0, fnmatch("a[^[:digit:]]b", "aOb", 0));
+}
+
+TEST(fnmatch, wild_any) {
+ EXPECT_EQ(0, fnmatch("ab*", "ab", 0));
+ EXPECT_EQ(0, fnmatch("ab*", "abc", 0));
+ EXPECT_EQ(0, fnmatch("ab*", "abcd", 0));
+ EXPECT_EQ(0, fnmatch("ab*", "ab/cd", 0));
+ EXPECT_EQ(FNM_NOMATCH, fnmatch("ab*", "ab/cd", FNM_PATHNAME));
+}
+
+TEST(fnmatch, wild_one) {
+ EXPECT_EQ(FNM_NOMATCH, fnmatch("ab?", "ab", 0));
+ EXPECT_EQ(0, fnmatch("ab?", "abc", 0));
+ EXPECT_EQ(FNM_NOMATCH, fnmatch("ab?", "abcd", 0));
+ EXPECT_EQ(0, fnmatch("ab?d", "abcd", 0));
+ EXPECT_EQ(0, fnmatch("ab?cd", "ab/cd", 0));
+ EXPECT_EQ(FNM_NOMATCH, fnmatch("ab?cd", "ab/cd", FNM_PATHNAME));
+}