Improved test for utils

t/utils.vim

@@ -3,31 +3,45 @@ source t/config/options.vim
 
 call vspec#hint({'scope': 'tablemode#utils#scope()', 'sid': 'tablemode#utils#sid()'})
 
-describe 'line'
-  it 'should return the current line number'
-    Expect tablemode#utils#line('.') == line('.')
+describe 'utils'
+  describe 'line'
+    it 'should return the current line number'
+      Expect tablemode#utils#line('.') == line('.')
+    end
+
+    it 'should return the line number itself if it is a number'
+      Expect tablemode#utils#line(1) == 1
+    end
   end
 
-  it 'should return the line number itself if it is a number'
-    Expect tablemode#utils#line(1) == 1
-  end
-end
-
-describe 'strip'
-  it 'should strip all initial or trailing whitespace from a string'
-    let string = ' This is awesome  '
-    Expect tablemode#utils#strip(string) == 'This is awesome'
-  end
-end
-
-describe 'strlen'
-  it 'should return the length of a string correctly'
-    let string = 'this is a test'
-    Expect tablemode#utils#strlen(string) == 14
-  end
-
-  it 'should return the length of a unicode string correctly'
-    let string = '測試 is good.'
-    Expect tablemode#utils#strlen(string) == 11
+  describe 'strip'
+    it 'should strip all initial or trailing whitespace from a string'
+      let string = ' This is awesome  '
+      Expect tablemode#utils#strip(string) == 'This is awesome'
+    end
+  end
+
+  describe 'strlen'
+    it 'should return the length of a string correctly'
+      let string = 'this is a test'
+      Expect tablemode#utils#strlen(string) == 14
+    end
+
+    it 'should return the length of a unicode string correctly'
+      let string = '測試 is good.'
+      Expect tablemode#utils#strlen(string) == 11
+    end
+  end
+
+  describe 'strdisplaywidth'
+    it 'should return the display width of a string correctly'
+      let string = 'this is a test'
+      Expect tablemode#utils#StrDisplayWidth(string) == 14
+    end
+
+    it 'should return the display width of a unicode string correctly'
+      let string = '測試 is good.'
+      Expect tablemode#utils#StrDisplayWidth(string) == 13
+    end
   end
 end