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package main
import (
"fmt"
"testing"
)
func TestSamplePrefixes(t *testing.T) {
prefixes := Prefixes{
"1471-Orthographia": {
"1471-Orthographia-Tortellius_00001.txt",
"1471-Orthographia-Tortellius_00002.txt",
"1471-Orthographia-Tortellius_00003.txt",
"1471-Orthographia-Tortellius_00004.txt",
"1471-Orthographia-Tortellius_00005.txt",
"1471-Orthographia-Tortellius_00006.txt",
"1471-Orthographia-Tortellius_00007.txt",
"1471-Orthographia-Tortellius_00008.txt",
"1471-Orthographia-Tortellius_00009.txt",
"1471-Orthographia-Tortellius_000010.txt",
"1471-Orthographia-Tortellius_000011.txt",
"1471-Orthographia-Tortellius_000012.txt",
"1471-Orthographia-Tortellius_000013.txt",
"1471-Orthographia-Tortellius_000014.txt",
"1471-Orthographia-Tortellius_000015.txt",
"1471-Orthographia-Tortellius_000016.txt",
"1471-Orthographia-Tortellius_000017.txt",
"1471-Orthographia-Tortellius_000018.txt",
"1471-Orthographia-Tortellius_000019.txt",
"1471-Orthographia-Tortellius_000020.txt",
},
"Kallimachos_1509": {
"Kallimachos_1509-ShipOfFools-Barclay_00121.txt",
"Kallimachos_1509-ShipOfFools-Barclay_00122.txt",
"Kallimachos_1509-ShipOfFools-Barclay_00123.txt",
"Kallimachos_1509-ShipOfFools-Barclay_00124.txt",
"Kallimachos_1509-ShipOfFools-Barclay_00125.txt",
"Kallimachos_1509-ShipOfFools-Barclay_00126.txt",
},
"buckets_1678_DuHAMEL_PhilosophiaVetusEtNova_Vol4_0008_bin0.4": {
"buckets_1678_DuHAMEL_PhilosophiaVetusEtNova_Vol4_0008_bin0.4-copy_line_1_10_59125.txt",
"buckets_1678_DuHAMEL_PhilosophiaVetusEtNova_Vol4_0008_bin0.4-copy_line_1_11_27.txt",
"buckets_1678_DuHAMEL_PhilosophiaVetusEtNova_Vol4_0008_bin0.4-copy_line_1_12_49.txt",
"buckets_1678_DuHAMEL_PhilosophiaVetusEtNova_Vol4_0008_bin0.4-copy_line_1_13_9033333333333333.txt",
"buckets_1678_DuHAMEL_PhilosophiaVetusEtNova_Vol4_0008_bin0.4-copy_line_1_1_415.txt",
"buckets_1678_DuHAMEL_PhilosophiaVetusEtNova_Vol4_0008_bin0.4-copy_line_1_14_6628571428571429.txt",
"buckets_1678_DuHAMEL_PhilosophiaVetusEtNova_Vol4_0008_bin0.4-copy_line_1_16_865.txt",
"buckets_1678_DuHAMEL_PhilosophiaVetusEtNova_Vol4_0008_bin0.4-copy_line_1_17_62.txt",
"buckets_1678_DuHAMEL_PhilosophiaVetusEtNova_Vol4_0008_bin0.4-copy_line_1_18_6366666666666666.txt",
"buckets_1678_DuHAMEL_PhilosophiaVetusEtNova_Vol4_0008_bin0.4-copy_line_1_19_7857142857142857.txt",
"buckets_1678_DuHAMEL_PhilosophiaVetusEtNova_Vol4_0008_bin0.4-copy_line_1_19_7857142857142857.txt",
},
}
cases := []struct {
perc int
expected []string
}{
{1, []string{"1471-Orthographia-Tortellius_000019.txt", "Kallimachos_1509-ShipOfFools-Barclay_00122.txt", "buckets_1678_DuHAMEL_PhilosophiaVetusEtNova_Vol4_0008_bin0.4-copy_line_1_13_9033333333333333.txt"}},
{10, []string{"1471-Orthographia-Tortellius_00002.txt", "Kallimachos_1509-ShipOfFools-Barclay_00126.txt", "buckets_1678_DuHAMEL_PhilosophiaVetusEtNova_Vol4_0008_bin0.4-copy_line_1_11_27.txt"}},
{20, []string{"1471-Orthographia-Tortellius_00008.txt", "1471-Orthographia-Tortellius_000017.txt", "1471-Orthographia-Tortellius_00006.txt", "Kallimachos_1509-ShipOfFools-Barclay_00126.txt", "buckets_1678_DuHAMEL_PhilosophiaVetusEtNova_Vol4_0008_bin0.4-copy_line_1_11_27.txt", "buckets_1678_DuHAMEL_PhilosophiaVetusEtNova_Vol4_0008_bin0.4-copy_line_1_10_59125.txt"}},
}
for _, c := range cases {
t.Run(fmt.Sprintf("%d%%", c.perc), func(t *testing.T) {
actual := samplePrefixes(c.perc, prefixes)
if len(c.expected) != len(actual) {
t.Fatalf("Number of files picked (%d) differs from expected (%d):\nExpected: %s\nActual: %s\n", len(actual), len(c.expected), c.expected, actual)
return
}
for i, v := range c.expected {
if actual[i] != v {
t.Fatalf("Difference in expected and actual files (first difference is in index %d of actual):\n\nExpected:\n%s\n\nActual:\n%s\n", i, c.expected, actual)
}
}
})
}
}
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