Issue #1640 error in assertion warning

Author: vincentarelbundock

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: marginaleffects
 Title: Predictions, Comparisons, Slopes, Marginal Means, and Hypothesis Tests
-Version: 0.31.0.2
+Version: 0.31.0.3
 Authors@R:
     c(person(given = "Vincent",
              family = "Arel-Bundock",

NEWS.md

@@ -7,6 +7,7 @@
 Bugs:
 
 * Error when merging the original data back into `comparisons()` when the data includes some list columns. The problem is that `data.table` does not support that column type. We now return the original data.table error as a warning, and do not merge the data back. Thanks to @raffaem for report #1638.
+* Improve warning message for hypothesis string order. Thanks to @zakarydraper for report #1640.
 
 ## 0.31.0
 

R/hypothesis_string.R

@@ -35,7 +35,7 @@ mod <- lm(mpg ~ am * carb, data = mtcars)
 
 # assertion for safety
 p <- avg_predictions(mod, by = 'carb')
-stopifnot(p$carb[1] != 1 || p$carb[2] != 2)
+stopifnot(p$carb[1] == 1, p$carb[2] == 2)
 
 # hypothesis test
 avg_predictions(mod, by = 'carb', hypothesis = 'b1 - b2 = 0')