truncate variable descriptions that are wider than the console (#544)

Author: simonpcouch

NEWS.md

@@ -1,5 +1,8 @@
 # infer (development version)
 
+* The infer print method now truncates output when descriptions of explanatory 
+  or responses variables exceed the console width (#543).
+
 * Added missing commas and addressed formatting issues throughout the vignettes and articles. Backticks for package names were removed and missing parentheses for functions were added (@Joscelinrocha).
 
 # infer 1.0.7

R/print_methods.R

@@ -28,7 +28,11 @@ print.infer <- function(x, ...) {
     header[3] <- glue('Null Hypothesis: {attr(x, "null")}', .null = "NULL")
   }
 
-  cat(glue::glue_collapse(header[header != ""], sep = "\n"))
+  cat(glue::glue_collapse(
+    header[header != ""],
+    width = cli::console_width(),
+    sep = "\n"
+  ))
   cat("\n")
 
   NextMethod()

tests/testthat/_snaps/print.md

@@ -0,0 +1,22 @@
+# print method fits linewidth with many predictors (#543)
+
+    Code
+      specify(mtcars, mpg ~ cyl + disp + hp + drat + wt + qsec)
+    Output
+      Response: mpg (numeric)
+      Explanatory: cyl (numeric), disp (numeric), hp (numer...
+      # A tibble: 32 x 7
+           mpg   cyl  disp    hp  drat    wt  qsec
+         <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl>
+       1  21       6  160    110  3.9   2.62  16.5
+       2  21       6  160    110  3.9   2.88  17.0
+       3  22.8     4  108     93  3.85  2.32  18.6
+       4  21.4     6  258    110  3.08  3.22  19.4
+       5  18.7     8  360    175  3.15  3.44  17.0
+       6  18.1     6  225    105  2.76  3.46  20.2
+       7  14.3     8  360    245  3.21  3.57  15.8
+       8  24.4     4  147.    62  3.69  3.19  20  
+       9  22.8     4  141.    95  3.92  3.15  22.9
+      10  19.2     6  168.   123  3.92  3.44  18.3
+      # i 22 more rows
+

tests/testthat/test-print.R

@@ -6,3 +6,7 @@ test_that("print works", {
       generate(reps = 10, type = "permute")
   ))
 })
+
+test_that("print method fits linewidth with many predictors (#543)", {
+  expect_snapshot(specify(mtcars, mpg ~ cyl + disp + hp + drat + wt + qsec))
+})