1 files changed, 74 insertions, 1 deletions

diff --git a/liblog_use_output.c b/liblog_use_output.c
index 3471722..b2c3ec4 100644
--- a/liblog_use_output.c
+++ b/liblog_use_output.c
@@ -38,6 +38,7 @@ liblog_use_output(struct liblog_context *ctx, const struct liblog_output *output
 		errno = ENOMEM;
 		return NULL;
 	}
+	ctx->outputs = new;
 
 	memcpy(&ctx->outputs[ctx->noutputs], output, sizeof(*output));
 
@@ -49,6 +50,78 @@ liblog_use_output(struct liblog_context *ctx, const struct liblog_output *output
 
 #else
 
-int main(void) {return 0;} /* TODO test */
+int
+main(void)
+{
+	struct liblog_context ctx;
+	struct liblog_output output;
+	struct liblog_output *new_output;
+
+	ASSERT_ZERO(liblog_init_context(&ctx));
+
+	errno = 0;
+	ASSERT_IS_NULL(liblog_use_output(NULL, NULL));
+	ASSERT_EQ_INT(errno, EINVAL);
+
+	errno = 0;
+	ASSERT_IS_NULL(liblog_use_output(&ctx, NULL));
+	ASSERT_EQ_INT(errno, EINVAL);
+
+	errno = 0;
+	ASSERT_IS_NULL(liblog_use_output(NULL, &output));
+	ASSERT_EQ_INT(errno, EINVAL);
+
+	memset(&ctx, 0, sizeof(ctx));
+
+	errno = 0;
+	output.lowest_verbosity_unlimited = 1;
+	output.highest_verbosity_unlimited = 1;
+	output.lowest_verbosity = (enum liblog_level)400;
+	output.highest_verbosity = (enum liblog_level)100;
+	ASSERT_IS_NULL(liblog_use_output(&ctx, &output));
+	ASSERT_EQ_INT(errno, EINVAL);
+	memset(&output, 0, sizeof(output));
+
+	errno = 0;
+	output.sink_type = (enum liblog_sink)99;
+	ASSERT_IS_NULL(liblog_use_output(&ctx, &output));
+	ASSERT_EQ_INT(errno, EINVAL);
+
+	errno = 0;
+	output.sink_type = (enum liblog_sink)-1;
+	ASSERT_IS_NULL(liblog_use_output(&ctx, &output));
+	ASSERT_EQ_INT(errno, EINVAL);
+
+	errno = 0;
+	output.sink_type = LIBLOG_STREAM;
+	output.sink.stream.stream = NULL;
+	ASSERT_IS_NULL(liblog_use_output(&ctx, &output));
+	ASSERT_EQ_INT(errno, EINVAL);
+
+	errno = 0;
+	output.sink_type = LIBLOG_FILE;
+	ctx.noutputs = SIZE_MAX / sizeof(*ctx.outputs);
+	ASSERT_IS_NULL(liblog_use_output(&ctx, &output));
+	ASSERT_EQ_INT(errno, ENOMEM);
+	ctx.noutputs = 0;
+
+	output.sink_type = LIBLOG_FILE;
+	output.sink.file.fd = 0;
+	output.sink.file.owns_fd = 0;
+	output.prefixfmt = NULL;
+	new_output = liblog_use_output(&ctx, &output);
+	ASSERT_NOT_NULL(new_output);
+	ASSERT_IS_NULL(output.prefixfmt);
+	ASSERT_NOT_NULL(new_output->prefixfmt);
+	ASSERT_EQ_STR(new_output->prefixfmt, DEFAULT_PREFIXFMT);
+	ASSERT_EQ_INT(new_output->sink_type, output.sink_type);
+	ASSERT_EQ_INT(new_output->sink.file.fd, output.sink.file.fd);
+	ASSERT_EQ_INT(new_output->sink.file.owns_fd, output.sink.file.owns_fd);
+	ASSERT_EQ_UINT(ctx.noutputs, 1);
+	ASSERT_NOT_NULL(ctx.outputs);
+
+	liblog_destroy_context(&ctx);
+	return 0;
+}
 
 #endif