test/parser: Add check_boot_option_count helper & get_boot_option

Add a helper function to check the expected boot option counts, and
print the boot option details if the check fails.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

2 files changed, 58 insertions, 0 deletions

diff --git a/test/parser/parser-test.h b/test/parser/parser-test.h
index 76132d5..744c914 100644
--- a/test/parser/parser-test.h
+++ b/test/parser/parser-test.h
@@ -31,10 +31,29 @@ void test_read_conf_file(struct parser_test *test, const char *filename);
 
 int test_run_parser(struct parser_test *test, const char *parser_name);
 
+struct discover_boot_option *get_boot_option(struct discover_context *ctx,
+		int idx);
+
 /* embedded config */
 extern const char __embedded_config[];
 extern const size_t __embedded_config_size;
 #define test_read_conf_embedded(t) \
 	__test_read_conf_data(t, __embedded_config, __embedded_config_size)
 
+/**
+ * Checks for parser results.
+ *
+ * These return void, but will respond to check failures by printing a reason
+ * for the failure, and exit the test with a non-zero exit status.
+ */
+
+/**
+ * Check that we have an expected number of boot options parsed. If not,
+ * print out what we did find, then exit.
+ */
+#define check_boot_option_count(ctx, count) \
+	__check_boot_option_count(ctx, count, __FILE__, __LINE__)
+void __check_boot_option_count(struct discover_context *ctx, int count,
+		const char *file, int line);
+
 #endif /* PARSER_TEST_H */
diff --git a/test/parser/utils.c b/test/parser/utils.c
index 69b0006..019ba63 100644
--- a/test/parser/utils.c
+++ b/test/parser/utils.c
@@ -140,3 +140,42 @@ int test_run_parser(struct parser_test *test, const char *parser_name)
 
 	return rc;
 }
+
+struct discover_boot_option *get_boot_option(struct discover_context *ctx,
+		int idx)
+{
+	struct discover_boot_option *opt;
+	int i = 0;
+
+	list_for_each_entry(&ctx->boot_options, opt, list) {
+		if (i++ == idx)
+			return opt;
+	}
+
+	assert(0);
+
+	return NULL;
+}
+
+void __check_boot_option_count(struct discover_context *ctx, int count,
+		const char *file, int line)
+{
+	struct discover_boot_option *opt;
+	int i = 0;
+
+	list_for_each_entry(&ctx->boot_options, opt, list)
+		i++;
+
+	if (i == count)
+		return;
+
+	fprintf(stderr, "%s:%d: boot option count check failed\n", file, line);
+	fprintf(stderr, "expected %d options, got %d:\n", count, i);
+
+	i = 1;
+	list_for_each_entry(&ctx->boot_options, opt, list)
+		fprintf(stderr, "  %2d: %s [%s]\n", i++, opt->option->name,
+				opt->option->id);
+
+	exit(EXIT_FAILURE);
+}