/*
  Copyright 2011-2017 David Robillard <http://drobilla.net>

  Permission to use, copy, modify, and/or distribute this software for any
  purpose with or without fee is hereby granted, provided that the above
  copyright notice and this permission notice appear in all copies.

  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

#include <float.h>
#include <math.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "serd/serd.h"

#include "test_utils.h"

#define USTR(s) ((const uint8_t*)(s))

#ifndef INFINITY
#    define INFINITY (DBL_MAX + DBL_MAX)
#endif
#ifndef NAN
#    define NAN (INFINITY - INFINITY)
#endif

static int
test_strtod(double dbl, double max_delta)
{
	char buf[1024];
	snprintf(buf, sizeof(buf), "%f", dbl);

	char* endptr = NULL;
	const double out = serd_strtod(buf, &endptr);

	const double diff = fabs(out - dbl);
	if (diff > max_delta) {
		FAILF("Parsed %lf != %lf (delta %lf)\n", dbl, out, diff);
	}
	return 0;
}

static SerdStatus
count_prefixes(void* handle, const SerdNode* name, const SerdNode* uri)
{
	++*(int*)handle;
	return SERD_SUCCESS;
}

typedef struct {
	int             n_statements;
	const SerdNode* graph;
} ReaderTest;

static SerdStatus
test_sink(void*              handle,
          SerdStatementFlags flags,
          const SerdNode*    graph,
          const SerdNode*    subject,
          const SerdNode*    predicate,
          const SerdNode*    object,
          const SerdNode*    object_datatype,
          const SerdNode*    object_lang)
{
	ReaderTest* rt = (ReaderTest*)handle;
	++rt->n_statements;
	rt->graph = graph;
	return SERD_SUCCESS;
}

static int
check_file_uri(const char* hostname,
               const char* path,
               bool        escape,
               const char* expected_uri,
               const char* expected_path)
{
	if (!expected_path) {
		expected_path = path;
	}

	SerdNode node = serd_node_new_file_uri(
		USTR(path), USTR(hostname), 0, escape);

	uint8_t* out_hostname = NULL;
	uint8_t* out_path     = serd_file_uri_parse(node.buf, &out_hostname);
	int      ret          = 0;
	if (strcmp((const char*)node.buf, expected_uri)) {
		ret = FAILF("Bad URI %s != %s\n", node.buf, expected_uri);
	} else if (!hostname && out_hostname) {
		ret = FAILF("hostname `%s' shouldn't exist\n", out_hostname);
	} else if (hostname && !out_hostname) {
		ret = FAILF("expected hostname `%s'\n", hostname);
	} else if (strcmp((const char*)out_path, (const char*)expected_path)) {
		ret = FAILF("path=>URI=>path failure %s => %s => %s\n",
		            path, node.buf, out_path);
	}

	free(out_path);
	free(out_hostname);
	serd_node_free(&node);
	return ret;
}

int
main(void)
{
#define MAX       1000000
#define NUM_TESTS 1000
	for (int i = 0; i < NUM_TESTS; ++i) {
		double dbl = rand() % MAX;
		dbl += (rand() % MAX) / (double)MAX;

		if (test_strtod(dbl, 1 / (double)MAX)) {
			return 1;
		}
	}

	const double expt_test_nums[] = {
		2.0E18, -5e19, +8e20, 2e+24, -5e-5, 8e0, 9e-0, 2e+0
	};

	const char* expt_test_strs[] = {
		"02e18", "-5e019", "+8e20", "2E+24", "-5E-5", "8E0", "9e-0", " 2e+0"
	};

	for (unsigned i = 0; i < sizeof(expt_test_nums) / sizeof(double); ++i) {
		const double num   = serd_strtod(expt_test_strs[i], NULL);
		const double delta = fabs(num - expt_test_nums[i]);
		if (delta > DBL_EPSILON) {
			FAILF("Parsed `%s' %lf != %lf (delta %lf)\n",
			      expt_test_strs[i], num, expt_test_nums[i], delta);
		}
	}

	// Test serd_node_new_decimal

	const double dbl_test_nums[] = {
		0.0, 9.0, 10.0, .01, 2.05, -16.00001, 5.000000005, 0.0000000001, NAN, INFINITY
	};

	const char* dbl_test_strs[] = {
		"0.0", "9.0", "10.0", "0.01", "2.05", "-16.00001", "5.00000001", "0.0", NULL, NULL
	};

	for (unsigned i = 0; i < sizeof(dbl_test_nums) / sizeof(double); ++i) {
		SerdNode   node = serd_node_new_decimal(dbl_test_nums[i], 8);
		const bool pass = (node.buf && dbl_test_strs[i])
			? !strcmp((const char*)node.buf, (const char*)dbl_test_strs[i])
			: ((const char*)node.buf == dbl_test_strs[i]);
		if (!pass) {
			FAILF("Serialised `%s' != %s\n",
			      node.buf, dbl_test_strs[i]);
		}
		const size_t len = node.buf ? strlen((const char*)node.buf) : 0;
		if (node.n_bytes != len || node.n_chars != len) {
			FAILF("Length %zu,%zu != %zu\n",
			      node.n_bytes, node.n_chars, len);
		}
		serd_node_free(&node);
	}

	// Test serd_node_new_integer

	const long int_test_nums[] = {
		0, -0, -23, 23, -12340, 1000, -1000
	};

	const char* int_test_strs[] = {
		"0", "0", "-23", "23", "-12340", "1000", "-1000"
	};

	for (unsigned i = 0; i < sizeof(int_test_nums) / sizeof(double); ++i) {
		SerdNode node = serd_node_new_integer(int_test_nums[i]);
		if (strcmp((const char*)node.buf, (const char*)int_test_strs[i])) {
			FAILF("Serialised `%s' != %s\n",
			      node.buf, int_test_strs[i]);
		}
		const size_t len = strlen((const char*)node.buf);
		if (node.n_bytes != len || node.n_chars != len) {
			FAILF("Length %zu,%zu != %zu\n",
			      node.n_bytes, node.n_chars, len);
		}
		serd_node_free(&node);
	}

	// Test serd_node_new_blob
	for (size_t size = 0; size < 256; ++size) {
		uint8_t* data = (uint8_t*)malloc(size);
		for (size_t i = 0; i < size; ++i) {
			data[i] = (uint8_t)(rand() % 256);
		}

		SerdNode blob = serd_node_new_blob(data, size, size % 5);

		if (blob.n_bytes != blob.n_chars) {
			FAILF("Blob %zu bytes != %zu chars\n",
			      blob.n_bytes, blob.n_chars);
		}

		size_t   out_size;
		uint8_t* out = (uint8_t*)serd_base64_decode(
			blob.buf, blob.n_bytes, &out_size);
		if (out_size != size) {
			FAILF("Blob size %zu != %zu\n", out_size, size);
		}

		for (size_t i = 0; i < size; ++i) {
			if (out[i] != data[i]) {
				FAILF("Corrupt blob at byte %zu\n", i);
			}
		}

		serd_node_free(&blob);
		free(out);
		free(data);
	}

	// Test serd_strlen

	const uint8_t str[] = { '"', '5', 0xE2, 0x82, 0xAC, '"', '\n', 0 };

	size_t        n_bytes;
	SerdNodeFlags flags;
	size_t        len = serd_strlen(str, &n_bytes, &flags);
	if (len != 5 || n_bytes != 7
	    || flags != (SERD_HAS_QUOTE|SERD_HAS_NEWLINE)) {
		FAILF("Bad serd_strlen(%s) len=%zu n_bytes=%zu flags=%u\n",
		      str, len, n_bytes, flags);
	}
	len = serd_strlen(str, NULL, &flags);
	if (len != 5) {
		FAILF("Bad serd_strlen(%s) len=%zu flags=%u\n",
		      str, len, flags);
	}

	// Test serd_strerror

	const uint8_t* msg = NULL;
	if (strcmp((const char*)(msg = serd_strerror(SERD_SUCCESS)), "Success")) {
		FAILF("Bad message `%s' for SERD_SUCCESS\n", msg);
	}
	for (int i = SERD_FAILURE; i <= SERD_ERR_INTERNAL; ++i) {
		msg = serd_strerror((SerdStatus)i);
		if (!strcmp((const char*)msg, "Success")) {
			FAILF("Bad message `%s' for (SerdStatus)%d\n", msg, i);
		}
	}
	msg = serd_strerror((SerdStatus)-1);

	// Test serd_uri_to_path

	const uint8_t* uri = (const uint8_t*)"file:///home/user/foo.ttl";
	if (strcmp((const char*)serd_uri_to_path(uri), "/home/user/foo.ttl")) {
		FAILF("Bad path %s for %s\n", serd_uri_to_path(uri), uri);
	}
	uri = (const uint8_t*)"file://localhost/home/user/foo.ttl";
	if (strcmp((const char*)serd_uri_to_path(uri), "/home/user/foo.ttl")) {
		FAILF("Bad path %s for %s\n", serd_uri_to_path(uri), uri);
	}
	uri = (const uint8_t*)"file:illegal/file/uri";
	if (serd_uri_to_path(uri)) {
		FAILF("Converted invalid URI `%s' to path `%s'\n",
		      uri, serd_uri_to_path(uri));
	}
	uri = (const uint8_t*)"file:///c:/awful/system";
	if (strcmp((const char*)serd_uri_to_path(uri), "c:/awful/system")) {
		FAILF("Bad path %s for %s\n", serd_uri_to_path(uri), uri);
	}
	uri = (const uint8_t*)"file:///c:awful/system";
	if (strcmp((const char*)serd_uri_to_path(uri), "/c:awful/system")) {
		FAILF("Bad path %s for %s\n", serd_uri_to_path(uri), uri);
	}
	uri = (const uint8_t*)"file:///0/1";
	if (strcmp((const char*)serd_uri_to_path(uri), "/0/1")) {
		FAILF("Bad path %s for %s\n", serd_uri_to_path(uri), uri);
	}
	uri = (const uint8_t*)"C:\\Windows\\Sucks";
	if (strcmp((const char*)serd_uri_to_path(uri), "C:\\Windows\\Sucks")) {
		FAILF("Bad path %s for %s\n", serd_uri_to_path(uri), uri);
	}
	uri = (const uint8_t*)"C|/Windows/Sucks";
	if (strcmp((const char*)serd_uri_to_path(uri), "C|/Windows/Sucks")) {
		FAILF("Bad path %s for %s\n", serd_uri_to_path(uri), uri);
	}

	// Test file URI escaping and parsing

	if (check_file_uri(NULL, "C:/My 100%", true,
	                   "file:///C:/My%20100%%", NULL) ||
	    check_file_uri("ahost", "C:\\Pointless Space", true,
	                   "file://ahost/C:/Pointless%20Space",
	                   "C:/Pointless Space") ||
	    check_file_uri(NULL, "/foo/bar", true,
	                   "file:///foo/bar", NULL) ||
	    check_file_uri("bhost", "/foo/bar", true,
	                   "file://bhost/foo/bar", NULL) ||
	    check_file_uri(NULL, "a/relative path", false,
	                   "a/relative path", NULL) ||
	    check_file_uri(NULL, "a/relative <path>", true,
	                   "a/relative%20%3Cpath%3E", NULL)) {
		return 1;
	}

	// Test tolerance of parsing junk URI escapes

	uint8_t* out_path = serd_file_uri_parse(USTR("file:///foo/%0Xbar"), NULL);
	if (strcmp((const char*)out_path, "/foo/bar")) {
		FAILF("bad tolerance of junk escape: `%s'\n", out_path);
	}
	free(out_path);

	// Test serd_node_equals

	const uint8_t replacement_char_str[] = { 0xEF, 0xBF, 0xBD, 0 };
	SerdNode lhs = serd_node_from_string(SERD_LITERAL, replacement_char_str);
	SerdNode rhs = serd_node_from_string(SERD_LITERAL, USTR("123"));
	if (serd_node_equals(&lhs, &rhs)) {
		FAILF("%s == %s\n", lhs.buf, rhs.buf);
	}

	SerdNode qnode = serd_node_from_string(SERD_CURIE, USTR("foo:bar"));
	if (serd_node_equals(&lhs, &qnode)) {
		FAILF("%s == %s\n", lhs.buf, qnode.buf);
	}

	if (!serd_node_equals(&lhs, &lhs)) {
		FAILF("%s != %s\n", lhs.buf, lhs.buf);
	}

	SerdNode null_copy = serd_node_copy(&SERD_NODE_NULL);
	if (!serd_node_equals(&SERD_NODE_NULL, &null_copy)) {
		FAIL("copy of null node != null node\n");
	}

	// Test serd_node_from_string

	SerdNode node = serd_node_from_string(SERD_LITERAL, (const uint8_t*)"hello\"");
	if (node.n_bytes != 6 || node.n_chars != 6 || node.flags != SERD_HAS_QUOTE
	    || strcmp((const char*)node.buf, "hello\"")) {
		FAILF("Bad node %s %zu %zu %d %d\n",
		      node.buf, node.n_bytes, node.n_chars, node.flags, node.type);
	}

	node = serd_node_from_string(SERD_URI, NULL);
	if (!serd_node_equals(&node, &SERD_NODE_NULL)) {
		FAIL("Creating node from NULL string failed\n");
	}

	// Test serd_node_from_substring

	SerdNode empty = serd_node_from_substring(SERD_LITERAL, NULL, 32);
	if (empty.buf || empty.n_bytes || empty.n_chars || empty.flags || empty.type) {
		FAIL("Successfully created node from NULL substring\n");
	}

	SerdNode a_b = serd_node_from_substring(SERD_LITERAL, USTR("a\"bc"), 3);
	if (a_b.n_bytes != 3 || a_b.n_chars != 3 || a_b.flags != SERD_HAS_QUOTE
	    || strncmp((const char*)a_b.buf, "a\"b", 3)) {
		FAILF("Bad node %s %zu %zu %d %d\n",
		      a_b.buf, a_b.n_bytes, a_b.n_chars, a_b.flags, a_b.type);
	}

	a_b = serd_node_from_substring(SERD_LITERAL, USTR("a\"bc"), 10);
	if (a_b.n_bytes != 4 || a_b.n_chars != 4 || a_b.flags != SERD_HAS_QUOTE
	    || strncmp((const char*)a_b.buf, "a\"bc", 4)) {
		FAILF("Bad node %s %zu %zu %d %d\n",
		      a_b.buf, a_b.n_bytes, a_b.n_chars, a_b.flags, a_b.type);
	}

	// Test serd_node_new_uri_from_string

	SerdNode nonsense = serd_node_new_uri_from_string(NULL, NULL, NULL);
	if (nonsense.type != SERD_NOTHING) {
		FAIL("Successfully created NULL URI\n");
	}

	SerdURI base_uri;
	SerdNode base = serd_node_new_uri_from_string(USTR("http://example.org/"),
	                                              NULL, &base_uri);
	SerdNode nil = serd_node_new_uri_from_string(NULL, &base_uri, NULL);
	SerdNode nil2 = serd_node_new_uri_from_string(USTR(""), &base_uri, NULL);
	if (nil.type != SERD_URI || strcmp((const char*)nil.buf, (const char*)base.buf) ||
	    nil2.type != SERD_URI || strcmp((const char*)nil2.buf, (const char*)base.buf)) {
		FAILF("URI %s != base %s\n", nil.buf, base.buf);
	}
	serd_node_free(&nil);
	serd_node_free(&nil2);

	// Test serd_node_new_relative_uri
	SerdNode abs = serd_node_from_string(SERD_URI, USTR("http://example.org/foo/bar"));
	SerdURI  abs_uri;
	serd_uri_parse(abs.buf, &abs_uri);

	SerdURI  rel_uri;
	SerdNode rel = serd_node_new_relative_uri(&abs_uri, &base_uri, NULL, &rel_uri);
	if (strcmp((const char*)rel.buf, "/foo/bar")) {
		FAILF("Bad relative URI %s (expected '/foo/bar')\n", rel.buf);
	}

	serd_node_free(&rel);
	serd_node_free(&base);

	// Test SerdEnv

	SerdNode u   = serd_node_from_string(SERD_URI, USTR("http://example.org/foo"));
	SerdNode b   = serd_node_from_string(SERD_CURIE, USTR("invalid"));
	SerdNode c   = serd_node_from_string(SERD_CURIE, USTR("eg.2:b"));
	SerdEnv* env = serd_env_new(NULL);
	serd_env_set_prefix_from_strings(env, USTR("eg.2"), USTR("http://example.org/"));

	if (!serd_env_set_base_uri(env, NULL)) {
		FAIL("Successfully set NULL base URI\n");
	}

	if (!serd_env_set_base_uri(env, &node)) {
		FAILF("Set base URI to %s\n", node.buf);
	}

	if (!serd_node_equals(serd_env_get_base_uri(env, NULL), &node)) {
		FAIL("Base URI mismatch\n");
	}

	SerdChunk prefix, suffix;
	if (!serd_env_expand(env, &b, &prefix, &suffix)) {
		FAILF("Expanded invalid curie %s\n", b.buf);
	}

	SerdNode xnode = serd_env_expand_node(env, &node);
	if (!serd_node_equals(&xnode, &SERD_NODE_NULL)) {
		FAILF("Expanded %s to %s\n", c.buf, xnode.buf);
	}

	SerdNode xu = serd_env_expand_node(env, &u);
	if (strcmp((const char*)xu.buf, "http://example.org/foo")) {
		FAILF("Expanded %s to %s\n", c.buf, xu.buf);
	}
	serd_node_free(&xu);

	SerdNode badpre = serd_node_from_string(SERD_CURIE, USTR("hm:what"));
	SerdNode xbadpre = serd_env_expand_node(env, &badpre);
	if (!serd_node_equals(&xbadpre, &SERD_NODE_NULL)) {
		FAILF("Expanded invalid curie %s\n", badpre.buf);
	}

	SerdNode xc = serd_env_expand_node(env, &c);
	if (strcmp((const char*)xc.buf, "http://example.org/b")) {
		FAILF("Expanded %s to %s\n", c.buf, xc.buf);
	}
	serd_node_free(&xc);

	if (!serd_env_set_prefix(env, &SERD_NODE_NULL, &SERD_NODE_NULL)) {
		FAIL("Set NULL prefix\n");
	}

	const SerdNode lit = serd_node_from_string(SERD_LITERAL, USTR("hello"));
	if (!serd_env_set_prefix(env, &b, &lit)) {
		FAIL("Set prefix to literal\n");
	}

	int n_prefixes = 0;
	serd_env_set_prefix_from_strings(env, USTR("eg.2"), USTR("http://example.org/"));
	serd_env_foreach(env, count_prefixes, &n_prefixes);
	if (n_prefixes != 1) {
		FAILF("Bad prefix count %d\n", n_prefixes);
	}

	SerdNode shorter_uri = serd_node_from_string(SERD_URI, USTR("urn:foo"));
	SerdNode prefix_name;
	if (serd_env_qualify(env, &shorter_uri, &prefix_name, &suffix)) {
		FAILF("Qualified %s\n", shorter_uri.buf);
	}

	// Test SerdReader and SerdWriter

	const char* path = "serd_test.ttl";
	FILE* fd = fopen(path, "wb");
	if (!fd) {
		FAILF("Failed to open file %s\n", path);
	}

	SerdWriter* writer = serd_writer_new(
		SERD_TURTLE, (SerdStyle)0, env, NULL, serd_file_sink, fd);
	if (!writer) {
		FAIL("Failed to create writer\n");
	}

	serd_writer_chop_blank_prefix(writer, USTR("tmp"));
	serd_writer_chop_blank_prefix(writer, NULL);

	if (!serd_writer_set_base_uri(writer, &lit)) {
		FAILF("Set base URI to %s\n", lit.buf);
	} else if (!serd_writer_set_prefix(writer, &lit, &lit)) {
		FAILF("Set prefix %s to %s\n", lit.buf, lit.buf);
	} else if (!serd_writer_end_anon(writer, NULL)) {
		FAIL("Ended non-existent anonymous node\n");
	} else if (serd_writer_get_env(writer) != env) {
		FAIL("Writer has incorrect env\n");
	}

	uint8_t buf[] = { 0x80, 0, 0, 0, 0 };
	SerdNode s = serd_node_from_string(SERD_URI, USTR(""));
	SerdNode p = serd_node_from_string(SERD_URI, USTR("http://example.org/pred"));
	SerdNode o = serd_node_from_string(SERD_LITERAL, buf);

	// Write 3 invalid statements (should write nothing)
	const SerdNode* junk[][5] = { { &s, &p, NULL, NULL, NULL },
	                              { &s, NULL, &o, NULL, NULL },
	                              { NULL, &p, &o, NULL, NULL },
	                              { &s, &p, &SERD_NODE_NULL, NULL, NULL },
	                              { &s, &SERD_NODE_NULL, &o, NULL, NULL },
	                              { &SERD_NODE_NULL, &p, &o, NULL, NULL },
	                              { &s, &o, &o, NULL, NULL },
	                              { &o, &p, &o, NULL, NULL },
	                              { &s, &p, &SERD_NODE_NULL, NULL, NULL },
	                              { NULL, NULL, NULL, NULL, NULL } };
	for (unsigned i = 0; i < sizeof(junk) / (sizeof(SerdNode*) * 5); ++i) {
		if (!serd_writer_write_statement(
			    writer, 0, NULL,
			    junk[i][0], junk[i][1], junk[i][2], junk[i][3], junk[i][4])) {
			FAILF("Successfully wrote junk statement %d\n", i);
		}
	}

	const SerdNode t = serd_node_from_string(SERD_URI, USTR("urn:Type"));
	const SerdNode l = serd_node_from_string(SERD_LITERAL, USTR("en"));
	const SerdNode* good[][5] = { { &s, &p, &o, NULL, NULL },
	                              { &s, &p, &o, &SERD_NODE_NULL, &SERD_NODE_NULL },
	                              { &s, &p, &o, &t, NULL },
	                              { &s, &p, &o, NULL, &l },
	                              { &s, &p, &o, &t, &l },
	                              { &s, &p, &o, &t, &SERD_NODE_NULL },
	                              { &s, &p, &o, &SERD_NODE_NULL, &l },
	                              { &s, &p, &o, NULL, &SERD_NODE_NULL },
	                              { &s, &p, &o, &SERD_NODE_NULL, NULL },
	                              { &s, &p, &o, &SERD_NODE_NULL, NULL } };
	for (unsigned i = 0; i < sizeof(good) / (sizeof(SerdNode*) * 5); ++i) {
		if (serd_writer_write_statement(
			    writer, 0, NULL,
			    good[i][0], good[i][1], good[i][2], good[i][3], good[i][4])) {
			FAILF("Failed to write good statement %d\n", i);
		}
	}

	// Write statements with bad UTF-8 (should be replaced)
	const uint8_t bad_str[] = { 0xFF, 0x90, 'h', 'i', 0 };
	SerdNode      bad_lit   = serd_node_from_string(SERD_LITERAL, bad_str);
	SerdNode      bad_uri   = serd_node_from_string(SERD_URI, bad_str);
	if (serd_writer_write_statement(writer, 0, NULL,
	                                &s, &p, &bad_lit, NULL, NULL)) {
		FAIL("Failed to write junk UTF-8 literal\n");
	} else if (serd_writer_write_statement(writer, 0, NULL,
	                                       &s, &p, &bad_uri, NULL, NULL)) {
		FAIL("Failed to write junk UTF-8 URI\n");
	}

	// Write 1 valid statement
	o = serd_node_from_string(SERD_LITERAL, USTR("hello"));
	if (serd_writer_write_statement(writer, 0, NULL,
	                                &s, &p, &o, NULL, NULL)) {
		FAIL("Failed to write valid statement\n");
	}

	serd_writer_free(writer);

	// Test chunk sink
	SerdChunk chunk = { NULL, 0 };
	writer = serd_writer_new(
		SERD_TURTLE, (SerdStyle)0, env, NULL, serd_chunk_sink, &chunk);

	o = serd_node_from_string(SERD_URI, USTR("http://example.org/base"));
	if (serd_writer_set_base_uri(writer, &o)) {
		FAIL("Failed to write to chunk sink\n");
	}

	serd_writer_free(writer);
	uint8_t* out = serd_chunk_sink_finish(&chunk);

	if (strcmp((const char*)out, "@base <http://example.org/base> .\n")) {
		FAILF("Incorrect chunk output:\n%s\n", chunk.buf);
	}

	free(out);

	// Rewind and test reader
	fseek(fd, 0, SEEK_SET);

	ReaderTest* rt     = (ReaderTest*)calloc(1, sizeof(ReaderTest));
	SerdReader* reader = serd_reader_new(
		SERD_TURTLE, rt, free,
		NULL, NULL, test_sink, NULL);
	if (!reader) {
		FAIL("Failed to create reader\n");
	}
	if (serd_reader_get_handle(reader) != rt) {
		FAIL("Corrupt reader handle\n");
	}

	SerdNode g = serd_node_from_string(SERD_URI, USTR("http://example.org/"));
	serd_reader_set_default_graph(reader, &g);
	serd_reader_add_blank_prefix(reader, USTR("tmp"));
	serd_reader_add_blank_prefix(reader, NULL);

	if (!serd_reader_read_file(reader, USTR("http://notafile"))) {
		FAIL("Apparently read an http URI\n");
	} else if (!serd_reader_read_file(reader, USTR("file:///better/not/exist"))) {
		FAIL("Apparently read a non-existent file\n");
	} else if (!serd_reader_read_file(reader, USTR("file://"))) {
		FAIL("Apparently read a file with no path\n");
	}

	const SerdStatus st = serd_reader_read_file(reader, USTR(path));
	if (st) {
		FAILF("Error reading file (%s)\n", serd_strerror(st));
	} else if (rt->n_statements != 13) {
		FAILF("Bad statement count %d\n", rt->n_statements);
	} else if (!rt->graph || !rt->graph->buf ||
	           strcmp((const char*)rt->graph->buf, "http://example.org/")) {
		FAILF("Bad graph %p\n", rt->graph);
	}

	if (!serd_reader_read_string(reader, USTR("This isn't Turtle at all."))) {
		FAIL("Parsed invalid string successfully.\n");
	}

	serd_reader_free(reader);
	fclose(fd);

	serd_env_free(env);

	printf("Success\n");
	return 0;
}