tests: add basic test for clickhouse-extract-from-config

Author: azat

tests/queries/0_stateless/03344_clickhouse_extract_from_config_try.reference

@@ -0,0 +1,8 @@
+xml
+Not found: merge_tree.anything_xml
+
+yaml
+Not found: merge_tree.anything_yaml
+
+File not found: I hope such path will never exists, since it does not even contain a single slash
+I hope such path will never exists, since it does not even contain a single slash

tests/queries/0_stateless/03344_clickhouse_extract_from_config_try.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+CUR_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+# shellcheck source=../shell_config.sh
+. "$CUR_DIR"/../shell_config.sh
+
+# NOTE: Cannot use CLICKHOUSE_EXTRACT_CONFIG, since it uses default config.
+
+prefix=$CUR_DIR/"$(basename "${BASH_SOURCE[0]}" .sh)"
+
+$CLICKHOUSE_BINARY extract-from-config --key merge_tree.comment --config $prefix.xml
+$CLICKHOUSE_BINARY extract-from-config --key merge_tree.anything_xml --config $prefix.xml |& grep -o 'Not found: merge_tree.anything_xml'
+$CLICKHOUSE_BINARY extract-from-config --key merge_tree.anything_xml --config $prefix.xml --try
+
+$CLICKHOUSE_BINARY extract-from-config --key merge_tree.comment --config $prefix.yaml
+$CLICKHOUSE_BINARY extract-from-config --key merge_tree.anything_yaml --config $prefix.yaml |& grep -o 'Not found: merge_tree.anything_yaml'
+$CLICKHOUSE_BINARY extract-from-config --key merge_tree.anything_yaml --config $prefix.yaml --try
+
+$CLICKHOUSE_BINARY extract-from-config --key include_from --config ${prefix}_bad_include_from.xml |& grep -o 'File not found: I hope such path will never exists, since it does not even contain a single slash'
+$CLICKHOUSE_BINARY extract-from-config --key include_from --config ${prefix}_bad_include_from.xml --try

tests/queries/0_stateless/03344_clickhouse_extract_from_config_try.xml

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+<clickhouse>
+  <merge_tree>
+    <comment>xml</comment>
+  </merge_tree>
+</clickhouse>

tests/queries/0_stateless/03344_clickhouse_extract_from_config_try.yaml

@@ -0,0 +1,2 @@
+merge_tree:
+  comment: yaml

tests/queries/0_stateless/03344_clickhouse_extract_from_config_try_bad_include_from.xml

@@ -0,0 +1,3 @@
+<clickhouse>
+  <include_from>I hope such path will never exists, since it does not even contain a single slash</include_from>
+</clickhouse>