Graham McIntire
fd976b0cd5
- Add jump_credo_checks ~> 0.4 with all 20 checks enabled - Fix all standard Credo issues: 139 @spec (113 done, 26 remain), 4 refactoring, 3 alias usage, 9 System.cmd env, 5 unsafe_to_atom, 2 max line length, 9 assert_receive timeout - Fix 170+ jump_credo_checks warnings: - 117 TopLevelAliasImportRequire: move nested alias/import to module top - 32 UseObanProWorker: switch to Oban.Pro.Worker - 4 DoctestIExExamples: add doctests / create test file - ~20 WeakAssertion: strengthen type-check assertions - Various ConditionalAssertion, AssertReceiveTimeout fixes - Exclude vendor/ from Credo analysis - Remaining: 175 warnings (mostly opinionated WeakAssertion, AvoidSocketAssignsInTest), 26 @spec annotations
107 lines
3.1 KiB
Elixir
107 lines
3.1 KiB
Elixir
defmodule Microwaveprop.Rover.LinkMarginTest do
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use ExUnit.Case, async: false
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alias Microwaveprop.Propagation.ScoresFile
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alias Microwaveprop.Rover.LinkMargin
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describe "score_to_db/1" do
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test "0 maps to -25.0 dB" do
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assert LinkMargin.score_to_db(0) == -25.0
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end
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test "50 maps to 0.0 dB" do
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assert LinkMargin.score_to_db(50) == 0.0
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end
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test "100 maps to 25.0 dB" do
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assert LinkMargin.score_to_db(100) == 25.0
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end
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test "nil maps to nil" do
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assert LinkMargin.score_to_db(nil) == nil
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end
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test "negative score maps below -25 dB" do
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assert LinkMargin.score_to_db(-10) == -30.0
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end
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test "score above 100 maps above 25 dB" do
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assert LinkMargin.score_to_db(120) == 35.0
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end
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end
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describe "link_margin_from_score/2" do
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test "score 80 in :ssb mode = 15.0 dB" do
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assert LinkMargin.link_margin_from_score(80, :ssb) == 15.0
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end
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test "score 50 in :cw mode = 18.0 dB (0 - (-18))" do
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assert LinkMargin.link_margin_from_score(50, :cw) == 18.0
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end
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test "nil score returns nil" do
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assert LinkMargin.link_margin_from_score(nil, :ssb) == nil
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end
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test "score 0 in :cw mode = -7.0 dB" do
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assert LinkMargin.link_margin_from_score(0, :cw) == -7.0
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end
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test "score 100 in :cw mode = 43.0 dB" do
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assert LinkMargin.link_margin_from_score(100, :cw) == 43.0
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end
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test "score 30 in :ssb mode gives negative margin" do
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margin = LinkMargin.link_margin_from_score(30, :ssb)
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assert margin < 0
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end
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test "score 50 in :q65_60a mode = 24.0 dB" do
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assert LinkMargin.link_margin_from_score(50, :q65_60a) == 24.0
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end
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end
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describe "link_margin_db/5" do
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setup do
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prev = Application.get_env(:microwaveprop, :propagation_scores_dir)
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dir = Path.join(System.tmp_dir!(), "link_margin_test_#{System.unique_integer([:positive])}")
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Application.put_env(:microwaveprop, :propagation_scores_dir, dir)
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on_exit(fn ->
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File.rm_rf(dir)
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if prev do
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Application.put_env(:microwaveprop, :propagation_scores_dir, prev)
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else
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Application.delete_env(:microwaveprop, :propagation_scores_dir)
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end
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end)
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:ok
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end
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test "returns nil when no score data exists" do
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assert LinkMargin.link_margin_db(10_000, ~U[2026-05-01 12:00:00Z], {33.0, -97.0}, {33.1, -96.5}, :ssb) ==
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nil
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end
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test "returns margin when score exists for the cell" do
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valid_time = ~U[2026-05-01 12:00:00Z]
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ScoresFile.write!(10_000, valid_time, [%{lat: 33.0, lon: -97.0, score: 80}])
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margin =
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LinkMargin.link_margin_db(10_000, valid_time, {33.0, -97.0}, {33.1, -96.5}, :ssb)
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# score_to_db(80) = 15.0, ssb threshold = 0.0, so margin = 15.0
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assert_in_delta margin, 15.0, 0.1
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end
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test "returns nil for a cell not in the score file" do
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valid_time = ~U[2026-05-01 12:00:00Z]
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ScoresFile.write!(10_000, valid_time, [%{lat: 33.0, lon: -97.0, score: 80}])
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assert LinkMargin.link_margin_db(10_000, valid_time, {35.0, -95.0}, {33.1, -96.5}, :ssb) == nil
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end
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end
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end
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