acontext("aes(href)")
color.df <- data.frame(
x=c(1, 1, 2, 1, 2),
university=c(
"Stanford",
rep("UC Berkeley", 2),
rep("Oregon State", 2)),
color=c("red", "blue", "gold", "orange", "black"))
university.df <- as.data.frame(table(color.df$university))
names(university.df) <- c("university", "colors")
test_that("clickSelects and href is an error", {
viz <- list(
colors=ggplot()+
geom_point(aes(
x, university, color=color, href=color),
clickSelects="university",
data=color.df)+
scale_color_identity())
expect_error({
animint2dir(viz, open.browser=FALSE)
}, "clickSelects can not be used with aes(href)", fixed=TRUE)
})
test_that("aes(href) becomes <a href>", {
viz <- list(
universities=ggplot()+
geom_bar(aes(
university, colors,
id=university),
clickSelects="university",
data=university.df, stat="identity"),
colors=ggplot()+
geom_point(aes(
x, university, color=color,
href=paste0("http://en.wikipedia.org/wiki/", color)),
showSelected="university",
data=color.df, size=5)+
scale_color_identity(),
first=list(university="UC Berkeley"))
info <- animint2HTML(viz)
expected.links <- c(
"http://en.wikipedia.org/wiki/blue",
"http://en.wikipedia.org/wiki/gold")
expect_links(info$html, expected.links)
})
test_that("clicking updates href", {
stanford.html <- clickHTML("id"="Stanford")
expect_links(stanford.html, "http://en.wikipedia.org/wiki/red")
})
test_that("clicking updates href (again)", {
osu.html <- clickHTML("id"="Oregon State")
expect_links(osu.html,
c("http://en.wikipedia.org/wiki/orange",
"http://en.wikipedia.org/wiki/black"))
})
test_that("aes(href) works with geom_polygon", {
USpolygons <- map_data("state")
USpolygons$href <- paste0("https://en.wikipedia.org/wiki/", USpolygons$region)
viz.href <- list(
map=ggplot()+
ggtitle("click a state to read its Wikipedia page")+
coord_equal()+
geom_polygon(
aes(x=long, y=lat, group=group, href=href),
data=USpolygons, fill="black", colour="grey")
)
info <- animint2HTML(viz.href)
(expected.vec <- unique(USpolygons$href))
expect_links(info$html, expected.vec)
})
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