101 lines
2.5 KiB
Nix
101 lines
2.5 KiB
Nix
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{describe, it, ...}:
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let
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pkgs = import <nixpkgs> {};
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solution = import ./solution.nix pkgs;
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exampleInput = pkgs.lib.readFile ./example.txt;
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example = solution exampleInput;
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parsed = {
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rules = {
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"29" = ["13"];
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"47" = ["53" "13" "61" "29"];
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"53" = ["29" "13"];
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"61" = ["13" "53" "29"];
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"75" = ["29" "53" "47" "61" "13"];
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"97" = ["13" "61" "47" "29" "53" "75"];
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};
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updates = [
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["75" "47" "61" "53" "29"]
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["97" "61" "53" "29" "13"]
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["75" "29" "13"]
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["75" "97" "47" "61" "53"]
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["61" "13" "29"]
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["97" "13" "75" "29" "47"]];
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};
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in [
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(describe "part 1" [
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(it "splits the rules from updates" {
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actual = example.parts;
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expected = parsed;
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})
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(it "check if an update complies with rule" {
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actual = map example.check [{
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rules = {
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"0" = ["1"];
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"1" = ["2"];
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};
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update = ["0" "1" "2"];
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}
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{
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rules = {
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"0" = ["1"];
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"1" = ["0"];
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};
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update = ["0" "1" "2"];
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}
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{
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inherit (parsed) rules;
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update =
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["75" "47" "61" "53" "29"];
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}
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{
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inherit (parsed) rules;
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update =
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["75" "97" "47" "61" "53"];
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}
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];
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expected = [true false true false];
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})
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(it "gets valid updates" {
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actual = example.getValid parsed;
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expected = [
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["75" "47" "61" "53" "29"]
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["97" "61" "53" "29" "13"]
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["75" "29" "13"]
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];
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})
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(it "sums middles of arrays" {
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actual = example.getMiddles [
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["75" "47" "61" "53" "29"]
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["97" "61" "53" "29" "13"]
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["75" "29" "13"]
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];
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expected = [61 53 29];
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})
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(it "gets the result" {
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actual = example.part1result;
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expected = 143;
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})
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])
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(describe "part 2" [
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(it "sorts an update" {
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actual = parsed.updates
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|> map (example.sortUpdate parsed.rules);
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# in reverse but who cares
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expected =
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[["29" "53" "61" "47" "75"] ["13" "29" "53" "61" "97"] ["13" "29" "75"] ["53" "61" "47" "75" "97"] ["13" "29" "61"] ["13" "29" "47" "75" "97"]];
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})
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(it "filters invalid" {
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actual = example.getInvalid parsed;
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expected = [
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["75" "97" "47" "61" "53"]
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["61" "13" "29"]
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["97" "13" "75" "29" "47"]
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];
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})
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(it "gets result" {
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actual = example.part2result;
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expected = 123;
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})
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])
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]
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