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Add test for #758 #759

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Aug 13, 2023
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Add test for #758 #759

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39 changes: 39 additions & 0 deletions tests/testing_column_names_v4.Rmd
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---
title: "Testing - Column Names"
author: "Robin Lovelace"
date: "`r Sys.Date()`"
output: html_document
editor_options:
chunk_output_type: console
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE, fig.width = 9)
```

# Instructions

Open the tmap repository as RStudio project.
Set Knit Directory (via drop-down menu of the Knit button in RStudio) to Project Directory.

```{r echo=FALSE,message=FALSE,fig.height = 2}
library(devtools)
load_all()
data(World,metro,land)

World$`Unusual column name` = World$HPI

# Test in v4 (2023-08-4):
tm_shape(World) +
tm_polygons("Unusual column name")
# Error: Visual values used for the variable, "fill" of layer function "tm_polygons" are incorrect.

# Test in v3: works!
remotes::install_version("tmap", version = "3.3")
detach("package:tmap", unload = TRUE)
library(tmap)

World$`Unusual column name` = World$HPI
tm_shape(World) +
tm_polygons("Unusual column name")
```