test (validations) : Add some unit tests around proxy validation (#4411)

Add some unit tests to test various values provided to these validation methods:
- validateHTTPProxy
- validateHTTPSProxy
- validateNoProxy

Signed-off-by: Rohan Kumar <[email protected]>

Author: rohanKanojia

pkg/crc/config/validations_test.go

@@ -53,3 +53,86 @@ func TestValidationPreset_WhenOKDProvidedOnArmArchitecture_thenValidationFailure
 	assert.Equal(t, false, validationPass)
 	assert.Equal(t, fmt.Sprintf("preset 'okd' is not supported on %s architecture, please use different preset value", runtime.GOARCH), validationMessage)
 }
+
+func TestValidateHTTPProxy(t *testing.T) {
+	tests := []struct {
+		name                     string
+		noProxyValue             string
+		expectedValidationResult bool
+		expectedValidationStr    string
+	}{
+		{"empty value", "", true, ""},
+		{"valid http url", "http://proxy.example.com", true, ""},
+		{"valid https url", "https://proxy.example.com", false, "HTTP proxy URL 'https://proxy.example.com' is not valid: url should start with http://"},
+		{"valid socks5 url", "socks5://proxy.example.com", false, "HTTP proxy URL 'socks5://proxy.example.com' is not valid: url should start with http://"},
+		{"type in http scheme", "htp://proxy.example.com", false, "HTTP proxy URL 'htp://proxy.example.com' is not valid: url should start with http://"},
+		{"no scheme", "proxy.example.com", false, "HTTP proxy URL 'proxy.example.com' is not valid: url should start with http://"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			actualValidationResult, actualValidationStr := validateHTTPProxy(tt.noProxyValue)
+			if actualValidationStr != tt.expectedValidationStr {
+				t.Errorf("validateHTTPProxy(%s) : got %v, want %v", tt.noProxyValue, actualValidationStr, tt.expectedValidationStr)
+			}
+			if actualValidationResult != tt.expectedValidationResult {
+				t.Errorf("validateHTTPProxy(%s) : got %v, want %v", tt.noProxyValue, actualValidationResult, tt.expectedValidationResult)
+			}
+		})
+	}
+}
+
+func TestValidateHTTPSProxy(t *testing.T) {
+	tests := []struct {
+		name                     string
+		noProxyValue             string
+		expectedValidationResult bool
+		expectedValidationStr    string
+	}{
+		{"empty value", "", true, ""},
+		{"valid https url", "https://proxy.example.com", true, ""},
+		{"valid http url", "http://proxy.example.com", true, ""},
+		{"valid socks5 url", "socks5://proxy.example.com", false, "HTTPS proxy URL 'socks5://proxy.example.com' is not valid: url should start with http:// or https://"},
+		{"type in https scheme", "htps://proxy.example.com", false, "HTTPS proxy URL 'htps://proxy.example.com' is not valid: url should start with http:// or https://"},
+		{"no scheme", "proxy.example.com", false, "HTTPS proxy URL 'proxy.example.com' is not valid: url should start with http:// or https://"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			actualValidationResult, actualValidationStr := validateHTTPSProxy(tt.noProxyValue)
+			if actualValidationStr != tt.expectedValidationStr {
+				t.Errorf("validateHTTPSProxy(%s) : got %v, want %v", tt.noProxyValue, actualValidationStr, tt.expectedValidationStr)
+			}
+			if actualValidationResult != tt.expectedValidationResult {
+				t.Errorf("validateHTTPSProxy(%s) : got %v, want %v", tt.noProxyValue, actualValidationResult, tt.expectedValidationResult)
+			}
+		})
+	}
+}
+
+func TestValidateNoProxy(t *testing.T) {
+	tests := []struct {
+		name                     string
+		noProxyValue             string
+		expectedValidationResult bool
+		expectedValidationStr    string
+	}{
+		{"empty value", "", true, ""},
+		{"valid single", "example.com", true, ""},
+		{"valid multiple", "localhost,127.0.0.1,example.com", true, ""},
+		{"space in single entry", "example .com", false, "NoProxy string can't contain spaces"},
+		{"space in between multiple entries", "localhost, , example.com", false, "NoProxy string can't contain spaces"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			actualValidationResult, actualValidationStr := validateNoProxy(tt.noProxyValue)
+			if actualValidationStr != tt.expectedValidationStr {
+				t.Errorf("validateNoProxy(%s) : got %v, want %v", tt.noProxyValue, actualValidationStr, tt.expectedValidationStr)
+			}
+			if actualValidationResult != tt.expectedValidationResult {
+				t.Errorf("validateNoProxy(%s) : got %v, want %v", tt.noProxyValue, actualValidationResult, tt.expectedValidationResult)
+			}
+		})
+	}
+}