added some tests

new file:   metadata/0d6cd5ec1e59d000706c500d3974926a.yml
new file:   metadata/31f27e2a470ddf0f2b2fa7b4abf4b10e.yml
new file:   metadata/33cca18e53687215181b07cbeadb1ace.yml
new file:   metadata/4b37fd3d1cc071cdb85947225b2e3ff9.yml
new file:   metadata/4c5f5fe09edf883779ff9bb44145c08a.yml
new file:   metadata/5c2e4939af5343ad93531258d1a79b9b.yml
new file:   metadata/5e530fd263a793a85e84014ca37c148d.yml
new file:   metadata/880f8aec068622198b6aaf7b6295c257.yml
new file:   metadata/b3239ec53b125ca748f4fc7034b6ec88.yml
new file:   metadata/b6071f74c4d98d6e1b801adf127ada23.yml
new file:   metadata/ccef8b417df64e305d2c512f4f338cb2.yml
new file:   metadata/d56331fcadf8520bd38bb2d1da918417.yml
new file:   metadata/d7236fb2af83586e7b73087a15a4ae7a.yml
new file:   metadata/dcdeab990b625c35efb4bb928912b648.yml
new file:   metadata/f23690e93631f968145e6115715dc0a7.yml
new file:   metadata/f57ae1a8a601377170c200abf43ad947.yml

metadata/0d6cd5ec1e59d000706c500d3974926a.yml

@@ -0,0 +1,17 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: 0d6cd5ec1e59d000706c500d3974926a
+url: https://byrdocs.org/files/0d6cd5ec1e59d000706c500d3974926a.pdf
+type: test
+data:
+  course:
+    name: 数学分析（下）
+  time:
+    start: '2020'
+    end: '2021'
+    semester: Second
+    stage: 期中
+  filetype: pdf
+  content:
+  - 原题
+  - 答案

metadata/31f27e2a470ddf0f2b2fa7b4abf4b10e.yml

@@ -0,0 +1,17 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: 31f27e2a470ddf0f2b2fa7b4abf4b10e
+url: https://byrdocs.org/files/31f27e2a470ddf0f2b2fa7b4abf4b10e.pdf
+type: test
+data:
+  course:
+    name: 通信原理
+  time:
+    start: '2019'
+    end: '2020'
+    semester: First
+    stage: 期末
+  filetype: pdf
+  content:
+  - 原题
+  - 答案

metadata/33cca18e53687215181b07cbeadb1ace.yml

@@ -0,0 +1,17 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: 33cca18e53687215181b07cbeadb1ace
+url: https://byrdocs.org/files/33cca18e53687215181b07cbeadb1ace.pdf
+type: test
+data:
+  course:
+    name: 通信原理
+  time:
+    start: '2017'
+    end: '2018'
+    semester: First
+    stage: 期末
+  filetype: pdf
+  content:
+  - 原题
+  - 答案

metadata/4b37fd3d1cc071cdb85947225b2e3ff9.yml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: 4b37fd3d1cc071cdb85947225b2e3ff9
+url: https://byrdocs.org/files/4b37fd3d1cc071cdb85947225b2e3ff9.pdf
+type: test
+data:
+  course:
+    name: 高频电子线路
+  time:
+    start: '2017'
+    end: '2018'
+    semester: Second
+    stage: 期末
+  filetype: pdf
+  content:
+  - 原题

metadata/4c5f5fe09edf883779ff9bb44145c08a.yml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: 4c5f5fe09edf883779ff9bb44145c08a
+url: https://byrdocs.org/files/4c5f5fe09edf883779ff9bb44145c08a.pdf
+type: test
+data:
+  course:
+    name: 通信电子电路
+  time:
+    start: '2020'
+    end: '2021'
+    stage: 期末
+  filetype: pdf
+  content:
+  - 原题
+  - 答案

metadata/5c2e4939af5343ad93531258d1a79b9b.yml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: 5c2e4939af5343ad93531258d1a79b9b
+url: https://byrdocs.org/files/5c2e4939af5343ad93531258d1a79b9b.pdf
+type: test
+data:
+  course:
+    name: 概率论与数理统计
+  time:
+    start: '2019'
+    end: '2020'
+    semester: Second
+    stage: 期末
+  filetype: pdf
+  content:
+  - 原题

metadata/5e530fd263a793a85e84014ca37c148d.yml

@@ -0,0 +1,17 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: 5e530fd263a793a85e84014ca37c148d
+url: https://byrdocs.org/files/5e530fd263a793a85e84014ca37c148d.pdf
+type: test
+data:
+  course:
+    name: 复变函数
+  time:
+    start: '2016'
+    end: '2017'
+    semester: First
+    stage: 期末
+  filetype: pdf
+  content:
+  - 原题
+  - 答案

metadata/880f8aec068622198b6aaf7b6295c257.yml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: 880f8aec068622198b6aaf7b6295c257
+url: https://byrdocs.org/files/880f8aec068622198b6aaf7b6295c257.pdf
+type: test
+data:
+  course:
+    name: 概率论与数理统计
+  time:
+    start: '2018'
+    end: '2019'
+    stage: 期末
+  filetype: pdf
+  content:
+  - 原题
+  - 答案

metadata/b3239ec53b125ca748f4fc7034b6ec88.yml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: b3239ec53b125ca748f4fc7034b6ec88
+url: https://byrdocs.org/files/b3239ec53b125ca748f4fc7034b6ec88.pdf
+type: test
+data:
+  course:
+    name: 高频电子线路
+  time:
+    start: '2019'
+    end: '2020'
+    semester: Second
+    stage: 期末
+  filetype: pdf
+  content:
+  - 原题

metadata/b6071f74c4d98d6e1b801adf127ada23.yml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: b6071f74c4d98d6e1b801adf127ada23
+url: https://byrdocs.org/files/b6071f74c4d98d6e1b801adf127ada23.pdf
+type: test
+data:
+  course:
+    name: 通信原理
+  time:
+    start: '2020'
+    end: '2021'
+    stage: 期末
+  filetype: pdf
+  content:
+  - 原题
+  - 答案

metadata/ccef8b417df64e305d2c512f4f338cb2.yml

@@ -0,0 +1,17 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: ccef8b417df64e305d2c512f4f338cb2
+url: https://byrdocs.org/files/ccef8b417df64e305d2c512f4f338cb2.pdf
+type: test
+data:
+  course:
+    name: 概率论与数理统计
+  time:
+    start: '2019'
+    end: '2020'
+    semester: First
+    stage: 期末
+  filetype: pdf
+  content:
+  - 原题
+  - 答案

metadata/d56331fcadf8520bd38bb2d1da918417.yml

@@ -0,0 +1,17 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: d56331fcadf8520bd38bb2d1da918417
+url: https://byrdocs.org/files/d56331fcadf8520bd38bb2d1da918417.pdf
+type: test
+data:
+  course:
+    name: 通信原理
+  time:
+    start: '2019'
+    end: '2020'
+    semester: First
+    stage: 期末
+  filetype: pdf
+  content:
+  - 原题
+  - 答案

metadata/d7236fb2af83586e7b73087a15a4ae7a.yml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: d7236fb2af83586e7b73087a15a4ae7a
+url: https://byrdocs.org/files/d7236fb2af83586e7b73087a15a4ae7a.pdf
+type: test
+data:
+  course:
+    name: 计算机系统基础
+  time:
+    start: '2019'
+    end: '2020'
+    semester: First
+    stage: 期中
+  filetype: pdf
+  content:
+  - 原题

metadata/dcdeab990b625c35efb4bb928912b648.yml

@@ -0,0 +1,17 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: dcdeab990b625c35efb4bb928912b648
+url: https://byrdocs.org/files/dcdeab990b625c35efb4bb928912b648.pdf
+type: test
+data:
+  course:
+    name: 通信原理
+  time:
+    start: '2016'
+    end: '2017'
+    semester: First
+    stage: 期末
+  filetype: pdf
+  content:
+  - 原题
+  - 答案

metadata/f23690e93631f968145e6115715dc0a7.yml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: f23690e93631f968145e6115715dc0a7
+url: https://byrdocs.org/files/f23690e93631f968145e6115715dc0a7.pdf
+type: test
+data:
+  course:
+    name: 数学分析（下）
+  time:
+    start: '2022'
+    end: '2023'
+    semester: Second
+    stage: 期中
+  filetype: pdf
+  content:
+  - 原题

metadata/f57ae1a8a601377170c200abf43ad947.yml

@@ -0,0 +1,17 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: f57ae1a8a601377170c200abf43ad947
+url: https://byrdocs.org/files/f57ae1a8a601377170c200abf43ad947.pdf
+type: test
+data:
+  course:
+    name: 复变函数
+  time:
+    start: '2017'
+    end: '2018'
+    semester: First
+    stage: 期末
+  filetype: pdf
+  content:
+  - 原题
+  - 答案