feature(test): add tests

tests/bad_test.toml

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+blah

tests/config.rs

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+use scootaloo::parse_toml;
+
+#[test]
+fn test_parse_good_toml() {
+    let parse_good_toml = parse_toml("tests/good_test.toml");
+
+    assert_eq!(parse_good_toml.scootaloo.db_path, "/var/random/scootaloo.sqlite");
+    assert_eq!(parse_good_toml.scootaloo.cache_path, "/tmp/scootaloo");
+
+    assert_eq!(parse_good_toml.twitter.username, "tamerelol");
+    assert_eq!(parse_good_toml.twitter.consumer_key, "rand consumer key");
+    assert_eq!(parse_good_toml.twitter.consumer_secret, "secret");
+    assert_eq!(parse_good_toml.twitter.access_key, "rand access key");
+    assert_eq!(parse_good_toml.twitter.access_secret, "super secret");
+
+    assert_eq!(parse_good_toml.mastodon.base, "https://m.nintendojo.fr");
+    assert_eq!(parse_good_toml.mastodon.client_id, "rand client id");
+    assert_eq!(parse_good_toml.mastodon.client_secret, "secret");
+    assert_eq!(parse_good_toml.mastodon.redirect, "urn:ietf:wg:oauth:2.0:oob");
+    assert_eq!(parse_good_toml.mastodon.token, "super secret");
+}
+
+#[test]
+#[should_panic(expected = "Cannot open config file tests/no_file.toml: No such file or directory (os error 2)")]
+fn test_parse_no_toml() {
+    let _parse_no_toml = parse_toml("tests/no_file.toml");
+}
+
+#[test]
+#[should_panic(expected = "Cannot parse TOML file tests/bad_test.toml: expected an equals, found a newline at line 1 column 5")]
+fn test_parse_bad_toml() {
+    let _parse_bad_toml = parse_toml("tests/bad_test.toml");
+}

tests/good_test.toml

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+[scootaloo]
+
+db_path="/var/random/scootaloo.sqlite"
+cache_path="/tmp/scootaloo"
+
+[twitter]
+username="tamerelol"
+
+consumer_key="rand consumer key"
+consumer_secret="secret"
+access_key="rand access key"
+access_secret="super secret"
+
+[mastodon]
+base = "https://m.nintendojo.fr"
+client_id = "rand client id"
+client_secret = "secret"
+redirect = "urn:ietf:wg:oauth:2.0:oob"
+token = "super secret"