README: Document set_titles, use prettyformat::table, plus extra tests!

README:
- Mention `set_titles()`
- Explicitly `use prettytable::format`
- Expand sample code to call `set_titles()` and `add_row()`s.

lib.rs:
- Added test from README code using the longhand FormatBuilder
- Added test from README using FORMAT_NO_LINESEP_WITH_TITLE

2 files changed, 67 insertions, 1 deletions

diff --git a/README.md b/README.md
index f1bfbb2..5fd42fc 100644
--- a/README.md
+++ b/README.md
@@ -269,13 +269,14 @@ Configurable settings include:
 - Junctions

 - Column separators

 - Line separators

+- Titles (using `table.set_titles()`)

 

 To do this, either:

 - create a new `TableFormat` object, then call setters until you get the desired configuration;

 - or use the convenient `FormatBuilder` and Builder pattern, shown below

 

 ```rust

-let mut table = /* Initialize table */;

+let mut table = Table::new();

 let format = format::FormatBuilder::new()

     .column_separator('|')

     .borders('|')

@@ -285,6 +286,10 @@ let format = format::FormatBuilder::new()
     .padding(1, 1)

     .build();

 table.set_format(format);

+

+table.set_titles(row!["Title 1", "Title 2"]);

+table.add_row(row!["Value 1", "Value 2"]);

+table.add_row(row!["Value three", "Value four"]);

 ```

 

 The code above will make the table look like

@@ -300,6 +305,8 @@ For convenience, several formats are predefined in `prettytable::format::consts`
 

 Some formats and their respective outputs:

 - ```rust

+  use prettytable::format;

+

   table.set_format(*format::consts::FORMAT_NO_LINESEP_WITH_TITLE);

   ```

   ```

@@ -311,6 +318,8 @@ Some formats and their respective outputs:
   +-------------+------------+

   ```

 - ```rust

+  use prettytable::format;

+

   table.set_format(*format::consts::FORMAT_NO_BORDER_LINE_SEPARATOR);

   ```

   ```

diff --git a/src/lib.rs b/src/lib.rs
index cf3e658..a3adbfe 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -967,6 +967,63 @@ mod tests {
         assert_eq!(out, table.to_string().replace("\r\n", "\n"));
     }
 
+    #[test]
+    fn test_readme_format() {
+
+        // The below is lifted from the README
+
+        let mut table = Table::new();
+        let format = format::FormatBuilder::new()
+            .column_separator('|')
+            .borders('|')
+            .separators(&[format::LinePosition::Top,
+                        format::LinePosition::Bottom],
+                        format::LineSeparator::new('-', '+', '+', '+'))
+            .padding(1, 1)
+            .build();
+        table.set_format(format);
+
+        table.set_titles(Row::new(vec![Cell::new("Title 1"), Cell::new("Title 2")]));
+        table.add_row(Row::new(vec![Cell::new("Value 1"), Cell::new("Value 2")]));
+        table.add_row(Row::new(vec![Cell::new("Value three"), Cell::new("Value four")]));
+
+        let out = "\
++-------------+------------+
+| Title 1     | Title 2    |
+| Value 1     | Value 2    |
+| Value three | Value four |
++-------------+------------+
+";
+
+        println!("{}", out);
+        println!("____");
+        println!("{}", table.to_string().replace("\r\n","\n"));
+        assert_eq!(out, table.to_string().replace("\r\n","\n"));
+    }
+
+    #[test]
+    fn test_readme_format_with_title() {
+        let mut table = Table::new();
+        table.set_format(*format::consts::FORMAT_NO_LINESEP_WITH_TITLE);
+
+        table.set_titles(Row::new(vec![Cell::new("Title 1"), Cell::new("Title 2")]));
+        table.add_row(Row::new(vec![Cell::new("Value 1"), Cell::new("Value 2")]));
+        table.add_row(Row::new(vec![Cell::new("Value three"), Cell::new("Value four")]));
+
+        let out = "\
++-------------+------------+
+| Title 1     | Title 2    |
++-------------+------------+
+| Value 1     | Value 2    |
+| Value three | Value four |
++-------------+------------+
+";
+        println!("{}", out);
+        println!("____");
+        println!("{}", table.to_string().replace("\r\n","\n"));
+        assert_eq!(out, table.to_string().replace("\r\n","\n"));
+    }
+
     #[cfg(feature = "csv")]
     mod csv {
         use Table;