diff --git a/test/fixtures/simple-lineplot-xlabel.txt b/test/fixtures/simple-lineplot-xlabel.txt
new file mode 100644
index 0000000..40e7a06
--- /dev/null
+++ b/test/fixtures/simple-lineplot-xlabel.txt
@@ -0,0 +1,19 @@
+       ┌────────────────────────────────────────┐ 
+    50 │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸│ 
+       │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡄⠀⠀⠀⠀⠀⠀⠀⡸│ 
+       │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⢇⠀⠀⠀⠀⠀⠀⠀⡇│ 
+       │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢠⢇⠀⠀⠀⠀⠀⠀⠀⡎⢸⠀⠀⠀⠀⠀⠀⢠⠃│ 
+       │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡄⠀⠀⠀⠀⠀⠀⠀⡜⢸⠀⠀⠀⠀⠀⠀⢠⠃⠈⡆⠀⠀⠀⠀⠀⢸⠀│ 
+       │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡸⠸⡀⠀⠀⠀⠀⠀⢠⠃⠀⡇⠀⠀⠀⠀⠀⢸⠀⠀⢇⠀⠀⠀⠀⠀⡎⠀│ 
+       │⠀⠀⠀⡠⠳⡀⠀⠀⠀⠀⠀⢠⠃⠀⢣⠀⠀⠀⠀⠀⡜⠀⠀⢱⠀⠀⠀⠀⠀⡇⠀⠀⢸⠀⠀⠀⠀⠀⡇⠀│ 
+       │⠤⢤⠼⠤⠤⠵⡤⠤⠤⠤⢤⠧⠤⠤⠼⡤⠤⠤⠤⢤⠧⠤⠤⠬⡦⠤⠤⠤⢴⠥⠤⠤⠬⡦⠤⠤⠤⢼⠤⠤│ 
+       │⡠⠃⠀⠀⠀⠀⠱⡀⠀⠀⡜⠀⠀⠀⠀⢱⠀⠀⠀⡸⠀⠀⠀⠀⢣⠀⠀⠀⡸⠀⠀⠀⠀⡇⠀⠀⠀⡜⠀⠀│ 
+       │⠁⠀⠀⠀⠀⠀⠀⠱⡀⡰⠁⠀⠀⠀⠀⠀⡇⠀⢀⠇⠀⠀⠀⠀⠸⡀⠀⠀⡇⠀⠀⠀⠀⢸⠀⠀⠀⡇⠀⠀│ 
+       │⠀⠀⠀⠀⠀⠀⠀⠀⠱⠃⠀⠀⠀⠀⠀⠀⠸⡀⡸⠀⠀⠀⠀⠀⠀⢇⠀⢸⠀⠀⠀⠀⠀⠘⡄⠀⢰⠁⠀⠀│ 
+       │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢇⠇⠀⠀⠀⠀⠀⠀⢸⠀⡎⠀⠀⠀⠀⠀⠀⡇⠀⢸⠀⠀⠀│ 
+       │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠀⠀⠀⠀⠀⠀⠀⠀⣇⠇⠀⠀⠀⠀⠀⠀⢸⠀⡇⠀⠀⠀│ 
+       │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠹⠀⠀⠀⠀⠀⠀⠀⠘⣄⠇⠀⠀⠀│ 
+   -50 │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⠀⠀⠀⠀│ 
+       └────────────────────────────────────────┘ 
+       1                                       10
+                        X-LABEL
diff --git a/test/fixtures/simple-lineplot-ylabel.txt b/test/fixtures/simple-lineplot-ylabel.txt
new file mode 100644
index 0000000..64d7c66
--- /dev/null
+++ b/test/fixtures/simple-lineplot-ylabel.txt
@@ -0,0 +1,18 @@
+               ┌────────────────────────────────────────┐ 
+            50 │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸│ 
+               │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡄⠀⠀⠀⠀⠀⠀⠀⡸│ 
+               │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⢇⠀⠀⠀⠀⠀⠀⠀⡇│ 
+               │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢠⢇⠀⠀⠀⠀⠀⠀⠀⡎⢸⠀⠀⠀⠀⠀⠀⢠⠃│ 
+               │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡄⠀⠀⠀⠀⠀⠀⠀⡜⢸⠀⠀⠀⠀⠀⠀⢠⠃⠈⡆⠀⠀⠀⠀⠀⢸⠀│ 
+               │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡸⠸⡀⠀⠀⠀⠀⠀⢠⠃⠀⡇⠀⠀⠀⠀⠀⢸⠀⠀⢇⠀⠀⠀⠀⠀⡎⠀│ 
+               │⠀⠀⠀⡠⠳⡀⠀⠀⠀⠀⠀⢠⠃⠀⢣⠀⠀⠀⠀⠀⡜⠀⠀⢱⠀⠀⠀⠀⠀⡇⠀⠀⢸⠀⠀⠀⠀⠀⡇⠀│ 
+   Y-LABEL     │⠤⢤⠼⠤⠤⠵⡤⠤⠤⠤⢤⠧⠤⠤⠼⡤⠤⠤⠤⢤⠧⠤⠤⠬⡦⠤⠤⠤⢴⠥⠤⠤⠬⡦⠤⠤⠤⢼⠤⠤│ 
+               │⡠⠃⠀⠀⠀⠀⠱⡀⠀⠀⡜⠀⠀⠀⠀⢱⠀⠀⠀⡸⠀⠀⠀⠀⢣⠀⠀⠀⡸⠀⠀⠀⠀⡇⠀⠀⠀⡜⠀⠀│ 
+               │⠁⠀⠀⠀⠀⠀⠀⠱⡀⡰⠁⠀⠀⠀⠀⠀⡇⠀⢀⠇⠀⠀⠀⠀⠸⡀⠀⠀⡇⠀⠀⠀⠀⢸⠀⠀⠀⡇⠀⠀│ 
+               │⠀⠀⠀⠀⠀⠀⠀⠀⠱⠃⠀⠀⠀⠀⠀⠀⠸⡀⡸⠀⠀⠀⠀⠀⠀⢇⠀⢸⠀⠀⠀⠀⠀⠘⡄⠀⢰⠁⠀⠀│ 
+               │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢇⠇⠀⠀⠀⠀⠀⠀⢸⠀⡎⠀⠀⠀⠀⠀⠀⡇⠀⢸⠀⠀⠀│ 
+               │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠀⠀⠀⠀⠀⠀⠀⠀⣇⠇⠀⠀⠀⠀⠀⠀⢸⠀⡇⠀⠀⠀│ 
+               │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠹⠀⠀⠀⠀⠀⠀⠀⠘⣄⠇⠀⠀⠀│ 
+           -50 │⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⠀⠀⠀⠀│ 
+               └────────────────────────────────────────┘ 
+               1                                       10
diff --git a/test/fixtures/simpleT.tsv b/test/fixtures/simpleT.tsv
new file mode 100644
index 0000000..67145c2
--- /dev/null
+++ b/test/fixtures/simpleT.tsv
@@ -0,0 +1 @@
+-10	10	-20	20	-30	30	-40	40	-50	50
diff --git a/test/youplot/simple_test.rb b/test/youplot/simple_test.rb
index 5ccd787..640795f 100644
--- a/test/youplot/simple_test.rb
+++ b/test/youplot/simple_test.rb
@@ -135,4 +135,26 @@ class YouPlotSimpleTest < Test::Unit::TestCase
     assert_equal fixture('simple-boxplot.txt'), @stderr_file.read
     assert_equal fixture('simple.tsv'), @stdout_file.read
   end
+
+  test :line_transpose do
+    $stdin = File.open(File.expand_path('../fixtures/simpleT.tsv', __dir__), 'r')
+    YouPlot::Command.new(['line', '--transpose']).run
+    assert_equal fixture('simple-lineplot.txt'), @stderr_file.read
+  end
+
+  test :line_T do
+    $stdin = File.open(File.expand_path('../fixtures/simpleT.tsv', __dir__), 'r')
+    YouPlot::Command.new(['line', '-T']).run
+    assert_equal fixture('simple-lineplot.txt'), @stderr_file.read
+  end
+
+  test :line_xlabel do
+    YouPlot::Command.new(['line', '--xlabel', 'X-LABEL']).run
+    assert_equal fixture('simple-lineplot-xlabel.txt'), @stderr_file.read
+  end
+
+  test :line_ylabel do
+    YouPlot::Command.new(['line', '--ylabel', 'Y-LABEL']).run
+    assert_equal fixture('simple-lineplot-ylabel.txt'), @stderr_file.read
+  end
 end