test_that('estimateAWC/correctAWC', {
# test range of organic matter, loam FEF textures
base.awc <- estimateAWC(texcl = c("l","l","l"), omcl = c(3, 2, 1), na.rm = TRUE)
expect_equal(base.awc, c(0.21, 0.18, round(0.175, 2)))
# assume base AWC for testing corrections independently
base.expected <- c(0.21, 0.18, 0.17)
# auto-recycling of singletons, 3 AWCs all corrected with 25% rf
corrected.awc <- correctAWC(base.expected, total_rf = 25)
expect_equal(corrected.awc, c(0.18, 0.15, 0.14))
# using gravel-size fragments often gives somewhat more restrictive AWC
corrected.awc2 <- correctAWC(base.expected, total_rf = 25, gravel = 25)
expect_equal(corrected.awc2, c(0.16, 0.15, 0.14))
salty.awc <- correctAWC(base.expected, total_rf = 0, ec = 8)
expect_equal(salty.awc, c(0.17, 0.14, 0.14))
# NA handling
corrected.awc <- correctAWC(base.expected, total_rf = c(25, NA, 25), nullFragsAreZero = TRUE)
expect_equal(corrected.awc, c(0.18, 0.18, 0.14))
corrected.awc <- correctAWC(base.expected, total_rf = c(25, NA, 25), nullFragsAreZero = FALSE)
expect_equal(corrected.awc, c(0.18, NA, 0.14))
corrected.awc <- correctAWC(base.expected, ec = c(8, NA, 8), nullFragsAreZero = TRUE)
expect_equal(corrected.awc, c(0.17, 0.18, 0.14))
corrected.awc <- correctAWC(base.expected, ec = c(8, NA, 8), nullFragsAreZero = FALSE)
expect_equal(corrected.awc, c(0.17, NA, 0.14))
# multiple inputs (fragments + salts)
corrected.awc <- correctAWC(base.expected, total_rf = c(25, 25, NA), ec = c(8, NA, 8), nullFragsAreZero = TRUE)
expect_equal(corrected.awc, c(0.14, 0.15, 0.14))
corrected.awc <- correctAWC(base.expected, total_rf = c(25, 25, NA), ec = c(8, NA, 8), nullFragsAreZero = FALSE)
expect_equal(corrected.awc, c(0.14, NA, NA))
# more limiting `gravel` is used over NA `total_rf`, only NA is for 2nd texture with NA ec with nullFragsAreZero=F
corrected.awc <- correctAWC(base.expected, total_rf = c(25, 25, NA), gravel = c(25, 25, 25), ec = c(8, NA, 8), nullFragsAreZero = FALSE)
expect_equal(corrected.awc, c(0.13, NA, 0.11))
})
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