add unit tests

pkg/exchangerates/bank_of_canada_datasource_test.go

@@ -181,4 +181,17 @@ func TestBankOfCanadaDataSource_InvalidRate(t *testing.T) {
 		"}"))
 	assert.Equal(t, nil, err)
 	assert.Len(t, actualLatestExchangeRateResponse.ExchangeRates, 0)
+
+	actualLatestExchangeRateResponse, err = dataSource.Parse(context, []byte("{"+
+		"    \"observations\": [\n"+
+		"        {\n"+
+		"            \"d\": \"2021-04-01\",\n"+
+		"            \"FXUSDCAD\": {\n"+
+		"                \"v\": \"0\"\n"+
+		"            }\n"+
+		"        }\n"+
+		"    ]\n"+
+		"}"))
+	assert.Equal(t, nil, err)
+	assert.Len(t, actualLatestExchangeRateResponse.ExchangeRates, 0)
 }

pkg/exchangerates/international_monetary_fund_datasource_test.go

@@ -104,6 +104,20 @@ func TestInternationalMonetaryFundDataSource_MissingDefaultCurrencyData(t *testi
 	assert.NotEqual(t, nil, err)
 }
 
+func TestInternationalMonetaryFundDataSource_DefaultCurrencyDataInvalid(t *testing.T) {
+	dataSource := &InternationalMonetaryFundDataSource{}
+	context := core.NewNullContext()
+
+	_, err := dataSource.Parse(context, []byte("SDRs per Currency unit and Currency units per SDR (1)\n"+
+		"last five days\n"+
+		"SDRs per Currency unit (2)\n"+
+		"\n"+
+		"Currency\tAugust 28, 2024\tAugust 27, 2024\tAugust 26, 2024\tAugust 23, 2024\tAugust 22, 2024\n"+
+		"Chinese yuan\t0.1040520000\t0.1039250000\t0.1040370000\t0.1040850000\t0.1040570000\n"+
+		"U.S. dollar\t0\t0\t0\t0\t0\n"))
+	assert.NotEqual(t, nil, err)
+}
+
 func TestInternationalMonetaryFundDataSource_InvalidCurrency(t *testing.T) {
 	dataSource := &InternationalMonetaryFundDataSource{}
 	context := core.NewNullContext()
@@ -119,6 +133,41 @@ func TestInternationalMonetaryFundDataSource_InvalidCurrency(t *testing.T) {
 	assert.Len(t, actualLatestExchangeRateResponse.ExchangeRates, 1)
 }
 
+func TestInternationalMonetaryFundDataSource_InvalidRate(t *testing.T) {
+	dataSource := &InternationalMonetaryFundDataSource{}
+	context := core.NewNullContext()
+
+	actualLatestExchangeRateResponse, err := dataSource.Parse(context, []byte("SDRs per Currency unit and Currency units per SDR (1)\n"+
+		"last five days\n"+
+		"SDRs per Currency unit (2)\n"+
+		"\n"+
+		"Currency\tAugust 28, 2024\tAugust 27, 2024\tAugust 26, 2024\tAugust 23, 2024\tAugust 22, 2024\n"+
+		"Chinese yuan\tnull\tnull\tnull\tnull\tnull\n"+
+		"U.S. dollar\t0.7417320000\t0.7410250000\t0.7408270000\t0.7429280000\t0.7423020000\n"))
+	assert.Equal(t, nil, err)
+	assert.Len(t, actualLatestExchangeRateResponse.ExchangeRates, 1)
+
+	actualLatestExchangeRateResponse, err = dataSource.Parse(context, []byte("SDRs per Currency unit and Currency units per SDR (1)\n"+
+		"last five days\n"+
+		"SDRs per Currency unit (2)\n"+
+		"\n"+
+		"Currency\tAugust 28, 2024\tAugust 27, 2024\tAugust 26, 2024\tAugust 23, 2024\tAugust 22, 2024\n"+
+		"Chinese yuan\t0\t0\t0\t0\t0\n"+
+		"U.S. dollar\t0.7417320000\t0.7410250000\t0.7408270000\t0.7429280000\t0.7423020000\n"))
+	assert.Equal(t, nil, err)
+	assert.Len(t, actualLatestExchangeRateResponse.ExchangeRates, 1)
+
+	actualLatestExchangeRateResponse, err = dataSource.Parse(context, []byte("SDRs per Currency unit and Currency units per SDR (1)\n"+
+		"last five days\n"+
+		"SDRs per Currency unit (2)\n"+
+		"\n"+
+		"Currency\tAugust 28, 2024\tAugust 27, 2024\tAugust 26, 2024\tAugust 23, 2024\tAugust 22, 2024\n"+
+		"Chinese yuan\t\t\t\t\t\n"+
+		"U.S. dollar\t0.7417320000\t0.7410250000\t0.7408270000\t0.7429280000\t0.7423020000\n"))
+	assert.Equal(t, nil, err)
+	assert.Len(t, actualLatestExchangeRateResponse.ExchangeRates, 1)
+}
+
 func TestInternationalMonetaryFundDataSource_LatestDateNotHasRate(t *testing.T) {
 	dataSource := &InternationalMonetaryFundDataSource{}
 	context := core.NewNullContext()

pkg/exchangerates/national_bank_of_poland_datasource_test.go

@@ -171,4 +171,19 @@ func TestNationalBankOfPolandDataSource_InvalidRate(t *testing.T) {
 		"</ArrayOfExchangeRatesTable>"))
 	assert.Equal(t, nil, err)
 	assert.Len(t, actualLatestExchangeRateResponse.ExchangeRates, 0)
+
+	actualLatestExchangeRateResponse, err = dataSource.Parse(context, []byte("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"+
+		"<ArrayOfExchangeRatesTable xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">\n"+
+		"  <ExchangeRatesTable>\n"+
+		"    <EffectiveDate>2024-02-28</EffectiveDate>\n"+
+		"    <Rates>\n"+
+		"      <Rate>\n"+
+		"        <Code>USD</Code>\n"+
+		"        <Mid>0</Mid>\n"+
+		"      </Rate>\n"+
+		"    </Rates>\n"+
+		"  </ExchangeRatesTable>\n"+
+		"</ArrayOfExchangeRatesTable>"))
+	assert.Equal(t, nil, err)
+	assert.Len(t, actualLatestExchangeRateResponse.ExchangeRates, 0)
 }

pkg/exchangerates/swiss_national_bank_datasource_test.go

@@ -330,4 +330,59 @@ func TestSwissNationalBankDataSource_InvalidRate(t *testing.T) {
 		"</rss>"))
 	assert.Equal(t, nil, err)
 	assert.Len(t, actualLatestExchangeRateResponse.ExchangeRates, 0)
+
+	actualLatestExchangeRateResponse, err = dataSource.Parse(context, []byte("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"+
+		"<rss xmlns:atom=\"http://www.w3.org/2005/Atom\" xmlns:cb=\"http://www.cbwiki.net/wiki/index.php/Specification_1.2/\" xmlns:dc=\"http://purl.org/dc/elements/1.1/\" xmlns:dcterms=\"http://purl.org/dc/terms/\" xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\" version=\"2.0\">\n"+
+		"  <channel>\n"+
+		"    <pubDate>Tue, 12 Nov 2024 11:00:50 GMT</pubDate>\n"+
+		"    <item>\n"+
+		"      <cb:statistics rdf:parseType=\"Resource\">\n"+
+		"        <cb:exchangeRate rdf:parseType=\"Resource\">\n"+
+		"          <cb:observation rdf:parseType=\"Resource\">\n"+
+		"            <cb:value>0</cb:value>\n"+
+		"            <cb:unit>CHF</cb:unit>\n"+
+		"            <cb:unit_mult>1</cb:unit_mult>\n"+
+		"          </cb:observation>\n"+
+		"          <cb:baseCurrency>CHF</cb:baseCurrency>\n"+
+		"          <cb:targetCurrency>EUR</cb:targetCurrency>\n"+
+		"          <cb:observationPeriod rdf:parseType=\"Resource\">\n"+
+		"            <cb:period>2024-11-12</cb:period>\n"+
+		"          </cb:observationPeriod>\n"+
+		"        </cb:exchangeRate>\n"+
+		"      </cb:statistics>\n"+
+		"    </item>\n"+
+		"  </channel>\n"+
+		"</rss>"))
+	assert.Equal(t, nil, err)
+	assert.Len(t, actualLatestExchangeRateResponse.ExchangeRates, 0)
+}
+
+func TestSwissNationalBankDataSource_InvalidUnit(t *testing.T) {
+	dataSource := &SwissNationalBankDataSource{}
+	context := core.NewNullContext()
+
+	actualLatestExchangeRateResponse, err := dataSource.Parse(context, []byte("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"+
+		"<rss xmlns:atom=\"http://www.w3.org/2005/Atom\" xmlns:cb=\"http://www.cbwiki.net/wiki/index.php/Specification_1.2/\" xmlns:dc=\"http://purl.org/dc/elements/1.1/\" xmlns:dcterms=\"http://purl.org/dc/terms/\" xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\" version=\"2.0\">\n"+
+		"  <channel>\n"+
+		"    <pubDate>Tue, 12 Nov 2024 11:00:50 GMT</pubDate>\n"+
+		"    <item>\n"+
+		"      <cb:statistics rdf:parseType=\"Resource\">\n"+
+		"        <cb:exchangeRate rdf:parseType=\"Resource\">\n"+
+		"          <cb:observation rdf:parseType=\"Resource\">\n"+
+		"            <cb:value>0.9378</cb:value>\n"+
+		"            <cb:unit>CHF</cb:unit>\n"+
+		"            <cb:unit_mult>null</cb:unit_mult>\n"+
+		"          </cb:observation>\n"+
+		"          <cb:baseCurrency>CHF</cb:baseCurrency>\n"+
+		"          <cb:targetCurrency>EUR</cb:targetCurrency>\n"+
+		"          <cb:observationPeriod rdf:parseType=\"Resource\">\n"+
+		"            <cb:period>2024-11-12</cb:period>\n"+
+		"          </cb:observationPeriod>\n"+
+		"        </cb:exchangeRate>\n"+
+		"      </cb:statistics>\n"+
+		"    </item>\n"+
+		"  </channel>\n"+
+		"</rss>"))
+	assert.Equal(t, nil, err)
+	assert.Len(t, actualLatestExchangeRateResponse.ExchangeRates, 0)
 }