[PATCH v5 5/5] tests: add new test for the url_normalize function

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In order to perform sane URL matching for http.<url>.* options,
http.c normalizes URLs before performing matches.

A new test-url-normalize test program is introduced along with
a new t5200-url-normalize.sh script to run the tests.

Since the url_normalize function currently lives in http.c this
test will be skipped if NO_CURL is defined since http.c is skipped
in that case.

Signed-off-by: Kyle J. McKay <mackyle@xxxxxxxxx>
---
 .gitignore               |   1 +
 Makefile                 |   5 +++
 t/t5200-url-normalize.sh | 109 +++++++++++++++++++++++++++++++++++++++++++++++
 test-url-normalize.c     |  62 +++++++++++++++++++++++++++
 4 files changed, 177 insertions(+)
 create mode 100755 t/t5200-url-normalize.sh
 create mode 100644 test-url-normalize.c

diff --git a/.gitignore b/.gitignore
index efa8db0..b60a9df 100644
--- a/.gitignore
+++ b/.gitignore
@@ -201,6 +201,7 @@
 /test-string-list
 /test-subprocess
 /test-svn-fe
+/test-url-normalize
 /test-wildmatch
 /common-cmds.h
 *.tar.gz
diff --git a/Makefile b/Makefile
index 0600eb4..195c62a 100644
--- a/Makefile
+++ b/Makefile
@@ -580,6 +580,7 @@ TEST_PROGRAMS_NEED_X += test-sigchain
 TEST_PROGRAMS_NEED_X += test-string-list
 TEST_PROGRAMS_NEED_X += test-subprocess
 TEST_PROGRAMS_NEED_X += test-svn-fe
+TEST_PROGRAMS_NEED_X += test-url-normalize
 TEST_PROGRAMS_NEED_X += test-wildmatch
 
 TEST_PROGRAMS = $(patsubst %,%$X,$(TEST_PROGRAMS_NEED_X))
@@ -2278,6 +2279,10 @@ test-parse-options$X: parse-options.o parse-options-cb.o
 
 test-svn-fe$X: vcs-svn/lib.a
 
+test-url-normalize$X: test-url-normalize.o GIT-LDFLAGS $(GITLIBS)
+	$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
+		$(LIBS) $(CURL_LIBCURL) $(EXPAT_LIBEXPAT)
+
 .PRECIOUS: $(TEST_OBJS)
 
 test-%$X: test-%.o GIT-LDFLAGS $(GITLIBS)
diff --git a/t/t5200-url-normalize.sh b/t/t5200-url-normalize.sh
new file mode 100755
index 0000000..40ebcd3
--- /dev/null
+++ b/t/t5200-url-normalize.sh
@@ -0,0 +1,109 @@
+#!/bin/sh
+
+test_description='url normalization'
+. ./test-lib.sh
+
+if test -n "$NO_CURL"; then
+	skip_all='skipping test, git built without http support'
+	test_done
+fi
+
+# Note that only file: URLs should be allowed without a host
+
+test_expect_success 'url scheme' '
+	! test-url-normalize "" &&
+	! test-url-normalize "_" &&
+	! test-url-normalize "scheme" &&
+	! test-url-normalize "scheme:" &&
+	! test-url-normalize "scheme:/" &&
+	! test-url-normalize "scheme://" &&
+	! test-url-normalize "file" &&
+	! test-url-normalize "file:" &&
+	! test-url-normalize "file:/" &&
+	test-url-normalize "file://" &&
+	! test-url-normalize "://acme.co" &&
+	! test-url-normalize "x_test://acme.co" &&
+	! test-url-normalize "schem%6e://" &&
+	test-url-normalize "x-Test+v1.0://acme.co" &&
+	test "$(test-url-normalize -p "AbCdeF://x.Y")" = "abcdef://x.y/"
+'
+
+test_expect_success 'url authority' '
+	! test-url-normalize "scheme://user:pass@" &&
+	! test-url-normalize "scheme://?" &&
+	! test-url-normalize "scheme://#" &&
+	! test-url-normalize "scheme:///" &&
+	! test-url-normalize "scheme://:" &&
+	! test-url-normalize "scheme://:555" &&
+	test-url-normalize "file://user:pass@" &&
+	test-url-normalize "file://?" &&
+	test-url-normalize "file://#" &&
+	test-url-normalize "file:///" &&
+	test-url-normalize "file://:" &&
+	test-url-normalize "file://:555" &&
+	test-url-normalize "scheme://user:pass@host" &&
+	test-url-normalize "scheme://@host" &&
+	test-url-normalize "scheme://%00@host" &&
+	! test-url-normalize "scheme://%%@host" &&
+	! test-url-normalize "scheme://host_" &&
+	test-url-normalize "scheme://user:pass@host/" &&
+	test-url-normalize "scheme://@host/" &&
+	test-url-normalize "scheme://host/" &&
+	test-url-normalize "scheme://host?x" &&
+	test-url-normalize "scheme://host#x" &&
+	test-url-normalize "scheme://host/@" &&
+	test-url-normalize "scheme://host?@x" &&
+	test-url-normalize "scheme://host#@x" &&
+	test-url-normalize "scheme://[::1]" &&
+	test-url-normalize "scheme://[::1]/" &&
+	! test-url-normalize "scheme://hos%41/" &&
+	test-url-normalize "scheme://[invalid....:/" &&
+	test-url-normalize "scheme://invalid....:]/" &&
+	! test-url-normalize "scheme://invalid....:[/" &&
+	! test-url-normalize "scheme://invalid....:["
+'
+
+test_expect_success 'url port' '
+	test-url-normalize "xyz://q@xxxxxxxxx:" &&
+	test-url-normalize "xyz://q@xxxxxxxxx:456" &&
+	test-url-normalize "xyz://q@xxxxxxxxx:0" &&
+	test-url-normalize "xyz://q@xxxxxxxxx:99999" &&
+	test-url-normalize "http://q@xxxxxxxxx:80"; &&
+	test-url-normalize "https://q@xxxxxxxxx:443";
+	! test-url-normalize "http://q@:8008"; &&
+	! test-url-normalize "http://:8080"; &&
+	! test-url-normalize "http://:"; &&
+	test-url-normalize "xyz://q@xxxxxxxxx:456/" &&
+	test-url-normalize "xyz://[::1]:456/" &&
+	test-url-normalize "xyz://[::1]:/" &&
+	test-url-normalize "xyz://[::1]:000/" &&
+	! test-url-normalize "xyz://[::1]:0%300/" &&
+	! test-url-normalize "xyz://[::1]:030f/"
+'
+
+test_expect_success 'url general escapes' '
+	! test-url-normalize "http://x.y?%fg"; &&
+	test "$(test-url-normalize -p "X://W/%7e%41^%3a")" = "x://w/~A%5E%3A" &&
+	test "$(test-url-normalize -p "X://W/:/?#[]@")" = "x://w/:/?#[]@" &&
+	test "$(test-url-normalize -p "X://W/$&()*+,;=")" = "x://w/$&()*+,;=" &&
+	test "$(test-url-normalize -p "X://W/'\''")" = "x://w/'\''" &&
+	test "$(test-url-normalize -p "X://W?'\!'")" = "x://w/?'\!'"
+';#'
+
+test_expect_success 'url username/password escapes' '
+	test "$(test-url-normalize -p "x://%41%62(^):%70+d@foo")" = "x://Ab(%5E):p+d@foo/"
+'
+
+test_expect_success 'url normalized lengths' '
+	test "$(test-url-normalize -l "Http://%4d%65:%4d^%70@xxxxxxxx")" = 25 &&
+	test "$(test-url-normalize -l "http://%41:%42@x.y/%61/";)" = 17 &&
+	test "$(test-url-normalize -l "http://@x.y/^";)" = 14
+'
+
+test_expect_success 'url equivalents' '
+	test-url-normalize "httP://x" "Http://X/" &&
+	test-url-normalize "Http://%4d%65:%4d^%70@xxxxxxxx" "hTTP://Me:%4D^p@xxxxxxxx:80/" &&
+	test-url-normalize "https://@x.y/^"; "httpS://x.y:443/^"
+'
+
+test_done
diff --git a/test-url-normalize.c b/test-url-normalize.c
new file mode 100644
index 0000000..1872964
--- /dev/null
+++ b/test-url-normalize.c
@@ -0,0 +1,62 @@
+#ifdef NO_CURL
+
+int main()
+{
+	return 125;
+}
+
+#else /* !NO_CURL */
+
+#include "http.c"
+
+#define url_normalize(u,s) http_options_url_normalize(u,s)
+
+int main(int argc, char **argv)
+{
+	const char *usage = "test-url-normalize [-p | -l] <url1> | <url1> <url2>";
+	char *url1, *url2;
+	int opt_p = 0, opt_l = 0;
+
+	/*
+	 * For one url, succeed if url_normalize succeeds on it, fail otherwise.
+	 * For two urls, succeed only if url_normalize succeeds on both and
+	 * the results compare equal with strcmp.  If -p is given (one url only)
+	 * and url_normalize succeeds, print the result followed by "\n".  If
+	 * -l is given (one url only) and url_normalize succeeds, print the
+	 * returned length in decimal followed by "\n".
+	 */
+
+	if (argc > 1 && !strcmp(argv[1], "-p")) {
+		opt_p = 1;
+		argc--;
+		argv++;
+	} else if (argc > 1 && !strcmp(argv[1], "-l")) {
+		opt_l = 1;
+		argc--;
+		argv++;
+	}
+
+	if (argc < 2 || argc > 3)
+		die(usage);
+
+	if (argc == 2) {
+		size_t s;
+		url1 = url_normalize(argv[1], &s);
+		if (!url1)
+			return 1;
+		if (opt_p)
+			printf("%s\n", url1);
+		if (opt_l)
+			printf("%u\n", (unsigned)s);
+		return 0;
+	}
+
+	if (opt_p || opt_l)
+		die(usage);
+
+	url1 = url_normalize(argv[1], NULL);
+	url2 = url_normalize(argv[2], NULL);
+	return (url1 && url2 && !strcmp(url1, url2)) ? 0 : 1;
+}
+
+#endif /* !NO_CURL */
-- 
1.8.3

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